Administration: Chapters 1 and Exempt Residential Accessory Structures Change of Use or Occupancy 202 Definition of Horizontal Exit 202 Definition of Platform 202 Definition of Private Garage 202 Definition of Treated Wood

IBC Exempt Residential Accessory Structures (Modification) 2015 CODE: Scope. The provisions of this code shall apply to the construction, alteration, relocation, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures. Exception: Detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories above grade plane in height with a separate means of egress, and their accessory structures not more than three stories above grade plane in height, shall comply with the International Residential Code.

IBC 111.1Change of Use or Occupancy (Modification) 2015 CODE: Use and Occupancy. A building or structure shall not be used or occupied, and a change in the existing use or occupancy classification of a building or structure or portion thereof shall not be made, until the building official has issued a certificate of occupancy there for as provided herein. Issuance of a certificate of occupancy shall not be construed as an approval of a violation of the provisions of this code or of other ordinances of the jurisdiction. Exception: Certificates of occupancy are not required for work exempt from permits under Section

IBC 202 Definition of a Horizontal Exit (Modification) 2015 CODE: 202. EXIT, HORIZONTAL: A path of egress travel from one building to an area in another building on approximately the same level, or a path of egress travel through or around a wall or partition to an area on approximately the same level in the same building, which affords safety from fire and smoke from the area of incidence and areas communicating therewith. HORIZONTAL EXIT: An exit component consisting of fire-resistance rated construction and opening protectives intended to compartmentalize portions of a building thereby creating refuge areas that afford safety from the fire and smoke from the area of fire origin.

IBC 202 Definition of Platform (Clarification) 2015 CODE: 202. PLATFORM. A raised area within a building used for worship, the presentation of music, plays or other entertainment; the head table for special guests; the raised area for lecturers and speakers; boxing and wrestling rings; theater-in-the-round stages; and similar purposes wherein, other than horizontal sliding curtains, there are no overhead hanging curtains, drops, scenery or stage effects other than lighting and sound. A temporary platform is one installed for not more than 30 days.

IBC 202 Definition of Private Garage (Addition) 2015 CODE: 202. PRIVATE GARAGE. A building or portion of a building in which motor vehicles used by the tenants of the building or buildings on the premises are stored or kept, without provisions for repairing or servicing such vehicles for profit.

IBC 202 Definition of Treated Wood (Clarification) 2015 CODE: 202. TREATED WOOD. Wood and wood-based materials products that use vacuum-pressure impregnation processes are conditioned to enhance fire retardant or preservative properties. Fire-Retardant-Treated Wood. Pressure-treated lumber and plywood Wood products that, when impregnated with chemicals by a pressure process or other means during manufacture, exhibit reduced surface burning characteristics and resist propagation of fire. Preservative-Treated Wood. Pressure-treated Wood products that, conditioned with chemicals by a pressure process or other means, exhibit reduced susceptibility to damage by fungi, insects or marine borers.

Building Planning Chapters 3 through 6

Chapter 3 Use and Occupancy Classification Food Processing Facilities and Commercial Kitchens Training and Skill Development Facilities Food Processing Facilities and Commercial Kitchens Group I-1 Occupancy Classification Group I-2 Occupancy Classification Group R-3 Lodging Houses Group R-4 Occupancy Classification Classification of Accessory Storage Spaces

IBC Business Group B (Modification) Food processing establishments and commercial kitchens not associated with restaurants, cafeterias and similar dining facilities not more than 2500 square feet (232 m2) in area. (Clarification) Training and skill development not in a school or academic program (this shall include, but not be limited to, tutoring centers, martial arts studios, gymnastics and similar uses regardless of the ages served, and where not classified as a Group A occupancy).

IBC Moderate-Hazard Factory Industrial, Group F-1 (Modification) Food processing establishments and commercial kitchens not associated with restaurants, cafeterias and similar dining facilities more than 2500 square feet (232 m2) in area.

IBC Institutional Group I-1 (Modification) 2015 CODE: Institutional Group I-1. This Institutional Group I-1 occupancy shall include buildings, structures or portions thereof for more than 16 persons, excluding staff, who reside on a 24-hour basis in a supervised environment and receive custodial care. The persons receiving care are capable of self preservation. Buildings of Group I-1 shall be classified as one of the occupancy conditions specified in Sections or This group shall include, but not be limited to, the following: Alcohol and drug centers Assisted living facilities Congregate care facilities Convalescent facilities Group homes Halfway houses Residential board and custodial care facilities Social rehabilitation facilities

IBC Institutional Group I Condition 1. This occupancy condition shall include buildings in which all persons receiving custodial care who, without any assistance, are capable of responding to an emergency situation to complete building evacuation Condition 2. This occupancy condition shall include buildings in which there are any persons receiving custodial care who require limited verbal or physical assistance while responding to an emergency situation to complete building evacuation.

IBC Institutional Group I-2 (Modification) 2015 CODE: Institutional Group I-2. This Institutional Group I-2 occupancy shall include buildings and structures used for medical care on a 24-hour basis for more than five persons who are incapable of self-preservation. This group shall include, but not be limited to, the following: Foster care facilities Detoxification facilities Hospitals Nursing homes Psychiatric hospitals Occupancy Conditions. Buildings of Group I-2 shall be classified as one of the occupancy conditions indicated in Sections or

IBC Institutional Group I Condition 1. This occupancy condition shall include facilities that provide nursing and medical care but do not provide emergency care, surgery, obstetrics or inpatient stabilization units for psychiatric or detoxification, including but not limited to nursing homes and foster care facilities Condition 2. This occupancy condition shall include facilities that provide nursing and medical care and could provide emergency care, surgery, obstetrics or in-patient stabilization units for psychiatric or detoxification, including but not limited to hospitals.

IBC Group R-3 Lodging Houses (Modification) 2015 CODE: SECTION 202 DEFINITIONS GUEST ROOM. A room used or intended to be used by one or more guests for living or sleeping purposes. LODGING HOUSE. A one-family dwelling where one or more occupants are primarily permanent in nature and rent is paid for guest rooms Residential Group R-3. Residential Group R-3 occupancies where the occupants are primarily permanent in nature and not classified as Group R-1, R-2, R-4 or I, including: Buildings that do not contain more than two dwelling units Boarding houses (non-transient) with 16 or fewer occupants Boarding houses (transient) with 10 or fewer occupants Care facilities that provide accommodations for five or fewer persons receiving care Congregate living facilities (non-transient) with 16 or fewer occupants Congregate living facilities (transient) with 10 or fewer occupants Lodging houses with five of fewer guest rooms Lodging Houses. Owner-occupied lodging houses with five or fewer guest rooms shall be permitted to be constructed in accordance with the International Residential Code.

IBC Group R-4 Occupancy Classification (Modification) 2015 CODE: Residential Group R-4. This Residential Group R-4 occupancy shall include buildings, structures or portions thereof for more than five but not more than 16 persons, excluding staff, who reside on a 24-hour basis in a supervised residential environment and receive custodial care. Buildings of Group R-4 shall be classified as one of the occupancy conditions specified in Sections or The persons receiving care are capable of self-preservation. This group shall include, but not be limited to, the following: Alcohol and drug centers Assisted living facilities Congregate care facilities Convalescent facilities Group homes Halfway houses Residential board and custodial care facilities Social rehabilitation facilities Group R-4 occupancies shall meet the requirements for construction as defined for Group R-3, except as otherwise provided for in this code.

IBC Group R-4 Occupancy Classification Condition 1. This occupancy condition shall include buildings in which all persons receiving custodial care, without any assistance, are capable of responding to an emergency situation to complete building evacuation Condition 2. This occupancy condition shall include buildings in which there are any persons receiving custodial care who require limited verbal or physical assistance while responding to an emergency situation to complete building evacuation.

IBC Classification of Accessory Storage Spaces (Modification) 2015 CODE: Accessory Storage Spaces. A room or space used for storage purposes that is less than 100 square feet (9.3 m2) in area and accessory to another occupancy shall be classified as part of that occupancy. The aggregate area of such rooms or spaces shall not exceed the allowable area limits of Section

Chapter 4 Special Detailed Requirements Based on Occupancy 403.1, EXCEPTION ITEMS 3 AND 5 Applicability of High-Rise Provisions 404.5, EXCEPTION Atrium Smoke Control in Group I Occupancies 404.9, Egress Travel through an Atrium Private Garage Floor-Area Limitation Private Parking Garage Ceiling Height Group I-2 Shared Living Spaces Group I-2 Cooking Facilities Maximum Size of Group I-2 Smoke Compartments Horizontal Sliding Doors at Stage Proscenium Opening Travel Distance in Aircraft Manufacturing Facilities Storm Shelters Serving Critical Emergency Operations Facilities Storm Shelters Serving Group E Occupancies

IBC 403.1, Exception Items 3 and 5 (Clarification) 2015 CODE: Applicability. High-rise buildings shall comply with Sections through Exception: The provisions of Sections through shall not apply to the following buildings and structures: 1. Airport traffic control towers in accordance with Section Open parking garages in accordance with Section Buildings with The portion of a building containing a Group A-5 occupancy in accordance with Section Special industrial occupancies in accordance with Section Buildings with: 5.1. A Group H-1 occupancy, 5.2. A Group H-2 occupancy in accordance with Sections 415.8, , or 426.1; or, 5.3. A Group H-3 occupancy in accordance with Section

IBC Exception, Atrium Smoke Control in Group I Occupancies (Modification) 2015 CODE: Smoke Control. A smoke control system shall be installed in accordance with Section 909. Exception: In other than Group I-2, and Group I-1, Condition 2, smoke control is not required for atriums that connect only two stories.

IBC 404.9, Egress Travel Through an Atrium (Clarification) 2015 CODE: Exit Access Travel Distance. In other than the lowest level of the atrium, where the required means of egress is through the atrium space, the portion of exit access travel distance within the atrium space shall be not greater than 200 feet ( mm). The travel distance requirements for areas of buildings open to the atrium and where access to the exits is not through the atrium, shall comply with the requirements of Section Exit access travel distance for areas open to an atrium shall comply with the requirements of this section Egress Not Through the Atrium. Where required access to the exits is not through the atrium, exit access travel distance shall comply with Section Exit Access Travel Distance at the level of Exit Discharge. Where the path of egress travel is through an atrium space, exit access travel distance at the level of exit discharge shall be determined in accordance with Section Exit Access Travel Distance at Other Than the level of Exit Discharge. Where the path of egress travel is not at the level of exit discharge from the atrium, that portion of the total permitted exit access travel distance that occurs within the atrium shall be not greater than 200 feet ( mm) Interior Exit Stairways. A maximum of 50 percent of interior exit stairways are permitted to egress through an atrium on the level of exit discharge in accordance with Section 1028.

IBC Private Garage Floor-Area Limitation (Modification) 2015 CODE: Classification. Buildings or parts of buildings Private garages and carports shall be classified as Group U occupancies. because of the use or character of the occupancy Each private garage shall be not greater than 1000 square feet (93 m2) in area. or one story in height except as provided in Section Any building or portion thereof that exceeds the limitations specified in this section shall be classified in the occupancy group other than Group U that it most nearly resembles. Multiple private garages are permitted in a building where each private garage is separated from the other private garages by 1-hour fire barriers in accordance with Section 707, or 1-hour horizontal assemblies in accordance with Section 711, or both Area Increase.

IBC Private Parking Garage Ceiling Height (Clarification) 2015 CODE: Clear Height. In private garages and carports, the clear height in vehicle and pedestrian traffic areas shall be not less than 7 feet (2134 mm). Vehicle and pedestrian areas accommodating van accessible parking shall comply with Section

IBC Group I-2 Shared Living Spaces (Addition) 2015 CODE: Nursing Home Housing Units. In Group I-2, Condition 1, occupancies, in areas where nursing home residents are housed, shared living spaces, group meeting or multipurpose therapeutic spaces shall be permitted to be open to the corridor, where all of the following criteria are met: 1. The walls and ceilings of the space are constructed as required for corridors. 2. The spaces are not occupied as resident sleeping rooms, treatment rooms, incidental uses in accordance with Section 509, or hazardous uses. 3. The open space is protected by an automatic fire detection system installed in accordance with Section The corridors onto which the spaces open, in the same smoke compartment, are protected by an automatic fire detection system installed in accordance with Section 907, or the smoke compartment in which the spaces are located is equipped throughout with quick-response sprinklers in accordance with Section The space is arranged so as not to obstruct access to the required exits.

IBC Group I-2 Shared Living Spaces

IBC Group I-2 Cooking Facilities (Addition) 2015 CODE: Cooking Facilities. In Group I-2 Condition 1, occupancies, rooms or spaces that contain a cooking facility with domestic cooking appliances shall be permitted to be open to the corridor where all of the following criteria are met: 1. The number of care recipients housed in the smoke compartment is not greater than The number of care recipients served by the cooking facility is not greater than Only one cooking facility area is permitted in a smoke compartment. 4. The types of domestic cooking appliances permitted are limited to ovens, cooktops, ranges, warmers and microwaves. 5. The corridor is a clearly identified space delineated by construction or floor pattern, material or color. 6. The space containing the domestic cooking facility shall be arranged so as not to obstruct access to the required exit. 7. A domestic cooking hood installed and constructed in accordance with Section 505 of the International Mechanical Code is provided over the cooktop or range.

IBC Group I-2 Cooking Facilities 8. The domestic cooking hood provided over the cooktop or range shall be equipped with an automatic fire-extinguishing system of a type recognized for protection of domestic cooking equipment. Pre-engineered automatic extinguishing systems shall be tested in accordance with UL 300A and listed and labeled for the intended application. The system shall be installed in accordance with this code, its listing and the manufacturer’s installation instructions. 9. A manual actuation device for the hood suppression system shall be installed in accordance with Sections and An interlock device shall be provided such that upon activation of the hood suppression system, the power or fuel supply to the cooktop or range will be turned off. 11. A shut-off for the fuel and electrical power supply to the cooking equipment shall be provided in a location that is accessible only to staff. 12. A timer shall be provided that automatically deactivates the cooking appliances within a period of not more than 120 minutes. 13. A portable fire extinguisher shall be installed in accordance with Section 906 of the International Fire Code.

IBC Group I-2 Cooking Facilities

IBC Maximum Size of Group I-2 Smoke Compartments (Modification) 2015 CODE: Smoke barriers. Smoke barriers shall be provided to subdivide every story used by persons receiving care, treatment or sleeping and to divide other stories with an occupant load of 50 or more persons, into no fewer than two smoke compartments. Such stories shall be divided into smoke compartments with an area of not more than 22,500 square feet (2092 m2) in Group I-2, Condition 1, and not more than 40,000 square feet (3716 m2) in Group I-2, Condition 2, and the travel distance of travel from any point in a smoke compartment to a smoke barrier door shall be not greater than 200 feet ( mm). The smoke barrier shall be in accordance with Section 709.

IBC Horizontal Sliding Doors at Stage Proscenium Opening (Addition) 2015 CODE: Proscenium Curtain. Where a proscenium wall is required to have a fire-resistance rating, the stage opening shall be provided with a fire curtain complying with NFPA 80, horizontal sliding doors complying with Section having a fire protection rating of at least 1 hour, or an approved water curtain complying with Section or, in facilities not utilizing the provisions of smoke protected assembly seating in accordance with Section , a smoke control system complying with Section 909 or natural ventilation designed to maintain the smoke level not less than 6 feet (1829 mm) above the floor of the means of egress.

IBC Travel Distance in Aircraft Manufacturing Facilities (Modification) 2015 CODE: Aircraft Manufacturing Facilities. In buildings used for the manufacturing of aircraft, exit access travel distances indicated in Section shall be increased in accordance with the following: 1. The building shall be of Type I or II construction. 2. Exit access travel distance shall not exceed the distances given in Table Ancillary Areas. Rooms, areas and spaces ancillary to the primary manufacturing area shall be permitted to egress through such area having a minimum height as indicated in Table Exit access travel distance within the ancillary room, area or space shall not exceed that indicated in Table based on the occupancy classification of that ancillary in Table

IBC Storm Shelters Serving Critical Emergency Operations Facilities (Addition) 2015 CODE: Critical Emergency Operations. In areas where the shelter design wind speed for tornadoes in accordance with Figure 304.2(1) of ICC 500 is 250 MPH, 911 call stations, emergency operation centers and fire, rescue, ambulance and police stations shall have a storm shelter constructed2015 CODE: Critical Emergency Operations. In areas where the shelter design wind speed for tornadoes in accordance with Figure 304.2(1) of ICC 500 is 250 MPH, 911 call stations, emergency operation centers and fire, rescue, ambulance and police stations shall have a storm shelter constructed in accordance with ICC 500. Exception: Buildings meeting the requirements for shelter design in ICC 500.

IBC Storm Shelters Serving Group E Occupancies (Addition) 2015 CODE: Group E Occupancies. In areas where the shelter design wind speed for tornadoes is 250 MPH in accordance with Figure 304.2(1) of ICC 500, all Group E occupancies with an aggregate occupant load of 50 or more shall have a storm shelter constructed in accordance with ICC 500. The shelter shall be capable of housing the total occupant load of the Group E occupancy. Exceptions: 1. Group E day care facilities. 2. Group E occupancies accessory to places of religious worship. 3. Buildings meeting the requirements for shelter design in ICC 500.

Chapter 5 General Building Heights and Areas 503 General Building Height and Area Limitations TABLES 504.3, Building Height and Number of Stories , EXCEPTION 2 Mezzanine Openness TABLE Building Area Basements in Unlimited Area Buildings Group H-5 in Unlimited Area Buildings TABLE 509 Fire Protection from Incidental Uses Horizontal Building Separation

IBC 503 General Building Height and Area Limitations (Clarification) 2015 CODE: General. Unless otherwise specifically modified in Chapter 4 and this chapter, the building height, number of stories and building area shall not exceed the limits specified in Table 503 Sections 504 and 506 based on the type of construction as determined by Section 602 and the occupancies as determined by Section 302 except as modified hereafter. Building height, number of stories and building area provisions shall be applied independently. Each portion of a building separated by one or more fire walls complying with Section 706 shall be considered to be a separate building.

IBC Tables 504.3,504.4 Building Height and Number of Stories (Clarification) 2015 CODE: General. The building height permitted by Table 503 shall be increased in accordance with Sections and Height in Feet. The maximum height, in feet, of a building shall not exceed the limits specified in Table Number of Stories. The maximum number of stories of a building shall not exceed the limits specified in Table

IBC Tables 504.3,504.4 Building Height and Number of Stories

IBC Exception 2 Mezzanine Openness (Modification) 2015 CODE: Openness. A mezzanine shall be open and unobstructed to the room in which such mezzanine is located except for walls not more than 42 inches (1067 mm) in height, columns and posts. Exceptions: 1. Mezzanines or portions thereof are not required to be open to the room in which the mezzanines are located, provided that the occupant load of the aggregate area of the enclosed space is not greater than A mezzanine having two or more exits or access to exits is not required to be open to the room in which the mezzanine is located if at least one of the means of egress provides direct access to an exit from the mezzanine level.

IBC Table Building Area (Clarification) 2015 CODE: Allowable Area Determination. The allowable area of a building shall be determined in accordance with the applicable provisions of Sections through and Section

IBC Basements in Unlimited Area Buildings (Clarification) 2015 CODE: General. The area of buildings of the occupancies and configurations specified in Sections through shall not be limited. Basements not more than one story below grade plane shall be permitted.

IBC Group H-5 in Unlimited Area Buildings (Addition) 2015 CODE: Unlimited Mixed Occupancy Buildings with Group H-5. The area of a Group B, F, H-5, M or S building no more than two stories above grade plane shall not be limited where the building is equipped throughout with an automatic sprinkler system in accordance with Section , and is surrounded and adjoined by public ways or yards not less than 60 feet ( mm) in width, provided all of the following criteria are met: 1. Buildings containing Group H-5 occupancy shall be of Type I or II construction. 2. Each area used for Group H-5 occupancy shall be separated from other occupancies as required in Sections and Each area used for Group H-5 occupancy shall not exceed the maximum allowable area permitted for such occupancies in Section including modifications of Section 506. Exception: Where the Group H-5 occupancy exceeds the maximum allowable area, the Group H-5 shall be subdivided into areas that are separated by 2-hour fire barriers.

IBC Table 509 Fire Protection from Incidental Uses (Modification) 2015 CODE: Separation and Protection. The incidental uses listed in Table 509 shall be separated from the remainder of the building or equipped with an automatic sprinkler system, or both, in accordance with the provisions of that table.

IBC Table 509 Fire Protection from Incidental Uses

IBC Horizontal Building Separation (Modification) 2015 CODE: Horizontal Building Separation Allowance. A building shall be considered as separate and distinct buildings for the purpose of determining area limitations, continuity of fire walls, limitation of number of stories and type of construction where all of the following conditions are met: 1. The buildings are separated with a horizontal assembly having a fire-resistance rating of not less than 3 hours. 2. The building below the horizontal assembly is not greater than one story above grade plane The building below the horizontal assembly is of Type IA construction Shaft, stairway, ramp and escalator enclosures through the horizontal assembly shall have not less than a 2-hour fire- resistance rating with opening protectives in accordance with Section Exception: Where the enclosure walls below the horizontal assembly have not less than a 3-hour fire-resistance rating with opening protectives in accordance with Section 716.5, the enclosure walls extending above the horizontal assembly shall be permitted to have a 1-hour fire-resistance rating, provided: 1. The building above the horizontal assembly is not required to be of Type I construction; 2. The enclosure connects fewer than four stories; and 3. The enclosure opening protectives above the horizontal assembly have a fire protection rating of not less than 1 hour The building or buildings above the horizontal assembly shall be permitted to have multiple Group A occupancy uses, each with an occupant load of less 300, or Group B, M, R or S occupancies The building below the horizontal assembly shall be protected throughout by an approved automatic sprinkler system in accordance with Section , and shall be permitted to be any of the following occupancies occupancy allowed by this code except Group H Group S-2 parking garage used for the parking and storage of private motor vehicles; 6.2. Multiple Group A, each with an occupant load of less than 300; 6.3. Group B; 6.4. Group M; 6.5. Group R; and 6.6. Uses incidental to the operation of the building (including entry lobbies, mechanical rooms, storage areas and similar uses) The maximum building height in feet (mm) shall not exceed the limits set forth in Section for the building having the smaller allowable height as measured from the grade plane.

Chapter 6 Types of Construction TABLE 601, FOOTNOTE D One-Hour Substitution Type IV Member Size Equivalencies Cross-Laminated Timber in Exterior Walls 603.1, ITEM 26 Wall Construction of Freezers and Coolers

IBC Table 601 Footnote d One-Hour Substitution (Deletion) 2015 CODE: General. The building elements shall have a fireresistance rating not less than that specified in Table 601.

IBC Type IV Member Size Equivalencies (Addition) 2015 CODE: Type IV. Type IV construction (Heavy Timber, HT) is that type of construction in which the exterior walls are of noncombustible materials and the interior building elements are of solid or laminated wood without concealed spaces. The details of Type IV construction shall comply with the provisions of this section and Section Exterior walls complying with Section or shall also be permitted. Fire-retardant-treated wood framing complying with Section shall be permitted within exterior wall assemblies with a 2-hour rating or less. Minimum solid sawn nominal dimensions are required for structures built using Type IV construction (HT). For glued-laminated members and structural composite lumber (SCL) members, the equivalent net finished width and depths corresponding to the minimum nominal width and depths of solid sawn lumber are required as specified in Table Cross-laminated timber (CLT) dimensions used in this section are actual dimensions Fire Retardant Treated Wood in Exterior Walls. Fire- retardant-treated wood framing complying with Section shall be permitted within exterior wall assemblies with a 2-hour rating or less.

IBC Cross Laminated Timbers in Exterior Walls (Addition) 2015 CODE: Cross-laminated Timber in Exterior Walls. Cross-laminated timber complying with Section shall be permitted within exterior wall assemblies with a 2-hour rating or less, provided the exterior surface of the cross-laminated timber is protected by one the following: 1. Fire-retardant-treated wood sheathing complying with Section and not less than 15/32 inch (12 mm) thick; 2. Gypsum board not less than ½ inch (12.7 mm) thick; or 3. A noncombustible material.

IBC Item 26 Wall Construction of Freezers and Coolers (Addition) 2015 CODE: Allowable materials. Combustible materials shall be permitted in buildings of Type I or II construction in the following applications and in accordance with Sections through : (Applications 1 through 25 remain unchanged.) 26. Wall construction of freezers and coolers of less than 1000 square feet (92.9 m2), in size, lined on both sides with noncombustible materials and the building is protected throughout with an automatic sprinkler system in accordance with Section

Fire Protection Chapters 7 through 9

Chapter 7 Fire and Smoke Protection Features Protection of Secondary Members Projections at Exterior Walls Combustible Projections Buildings on the Same Lot Structural Element Bracing of Exterior Walls Vertical Separation of Openings Structural Stability of Fire Walls Continuity of Smoke Barriers 711, 712 Horizontal Assemblies and Vertical Openings Membrane Penetrations Ducts Transitioning between Shafts 717.3, Corridor Dampers

IBC Protection of Secondary Members (Clarification) 2015 CODE: Protection of Secondary Members. Secondary members that are required to have a fire-resistance rating shall be protected by individual encasement protection. by the membrane or ceiling of a horizontal assembly in accordance with Section 711, or by a combination of both Light-Frame Construction. King Studs and boundary elements that are integral elements in load-bearing walls of light-frame construction shall be permitted to have required fire-resistance ratings provided by the membrane protection provided for the load-bearing wall Horizontal Assemblies. Horizontal assemblies are permitted to be protected with a membrane or ceiling where the membrane or ceiling provides the required fire-resistance rating and are installed in accordance with Section 711.

IBC Protection of Secondary Members

(Modifications) 2015 CODE: Projections. Cornices, eave overhangs, exterior balconies and similar projections extending beyond the exterior wall shall conform to the requirements of this section and Section Exterior egress balconies and exterior exit stairways and ramps shall also comply with Sections 1021 and 1027, respectively. Projections shall not extend any closer to the line used to determine the fire separation distance than shown in Table Exception: Buildings on the same lot and considered as portions of one building in accordance with Section are not required to comply with this section for projections between the buildings.

IBC Combustible Projections (Modification) 2015 CODE: Combustible Projections. Combustible projections extending to within 5 feet (1524 mm) of the line used to determine the fire separation distance, or located where openings are not permitted, or where protection of some openings is required shall be of not less than 1- hour fire-resistance-rated construction, Type IV construction, fire- retardant-treated wood or as required by Section Exception: Type VB construction shall be allowed for combustible projections in Group R-3 and U occupancies with a fire separation distance greater than or equal to 5 feet (1524 mm)

IBC Buildings on the Same Lot (Modification) 2015 CODE: Buildings on the Same Lot. For the purposes of determining the required wall and opening protection, projections and roof-covering requirements, buildings on the same lot shall be assumed to have an imaginary line between them. Where a new building is to be erected on the same lot as an existing building, the location of the assumed imaginary line with relation to the existing building shall be such that the exterior wall and opening protection of the existing building meet the criteria as set forth in Sections and Exception Exceptions: 1. Two or more buildings on the same lot shall either be regulated as separate buildings or shall be considered as portions of one building if the aggregate area of such buildings is within the limits specified in Chapter 5 for a single building. Where the buildings contain different occupancy groups or are of different types of construction, the area shall be that allowed for the most restrictive occupancy or construction. 2. Where an S-2 parking garage of Construction Type I or Type IIA is erected on the same lot as a Group R-2 building, and there is no fire separation distance between these buildings, then the adjoining exterior walls between the buildings are permitted to have occupant use openings in accordance with Section However, opening protectives in such openings shall only be required in the exterior wall of the S-2 parking garage, not in the exterior wall openings in the R-2 building, and these opening protectives in the exterior wall of the S-2 parking garage shall be a minimum of 1½ hours fire protection rating.

IBC Buildings on the Same Lot

IBC Structural Element Bracing of Exterior Walls (Modification) 2015 CODE: Structural Stability. The wall Exterior walls shall extend to the height required by Section and shall have sufficient structural stability such that it will remain in place for the duration of time indicated by the required fire-resistance rating. Where exterior walls have a minimum fire separation distance of not less than 30 feet (9144 mm), interior Interior structural elements that brace the exterior wall but that are not located within the plane of the exterior wall shall have the minimum fire- resistance rating required in Table 601 for that structural element. Structural elements that brace the exterior wall but are located outside of the exterior wall or within the plane of the exterior wall shall have the minimum fire-resistance rating required in Tables 601 and 602 for the exterior wall.

IBC Structural Element Bracing of Exterior Walls

IBC Vertical Separation of Openings (Clarification) 2015 CODE: Vertical Separation of Openings. Openings in exterior walls in adjacent stories shall be separated vertically to protect against fire spread on the exterior of the buildings where the openings are within 5 feet (1524 mm) of each other horizontally and the opening in the lower story is not a protected opening with a fire protection rating of not less than ¾ hour. Such openings shall be separated vertically at least 3 feet (914 mm) by spandrel girders, exterior walls or other similar assemblies that have a fire-resistance rating of at least 1 hour, rated for exposure to fire from both sides, or by flame barriers that extend horizontally at least 30 inches (762 mm) beyond the exterior wall. Flame barriers shall also have a fire-resistance rating of at least 1 hour. The unexposed surface temperature limitations specified in ASTM E 119 or UL 263 shall not apply to the flame barriers or vertical separation unless otherwise required by the provisions of this code. Exceptions: 1. This section shall not apply to buildings that are three stories or less above grade plane. 2. This section shall not apply to buildings equipped throughout with an automatic sprinkler system in accordance with Sections or Open parking garages.

IBC Vertical Separation of Openings

IBC Structural Stability of Fire Walls (Modification) 2015 CODE: Structural Stability. Fire walls shall have sufficient structural stability under fire conditions be designed and constructed to allow collapse of construction the structure on either side without collapse of the wall under fire conditions. for the duration of time indicated by the required fire-resistance rating, or shall be Fire walls designed and constructed as double fire walls in accordance with NFPA 221 shall be deemed to comply with this section.

IBC Continuity of Smoke Barriers (Clarification) 2015 CODE: Continuity. Smoke barriers shall form an effective membrane continuous from outside wall to outside wall and from the top of the foundation or floor/ceiling assembly below to the underside of the floor or roof sheathing, deck or slab above, including continuity through concealed spaces, such as those found above suspended ceilings, and interstitial structural and mechanical spaces. The supporting construction shall be protected to afford the required fire-resistance rating of the wall or floor supported in buildings of other than Types IIB, IIIB or VB construction. Smoke-barrier walls used to separate smoke compartments shall comply with Section Smoke-barrier walls used to enclose areas of refuge in accordance with Section or to enclose elevator lobbies in accordance with Section , or shall comply with Section Exceptions: 1. Smoke-barrier walls are not required in interstitial spaces where such spaces are designed and constructed with ceilings or exterior walls that provide resistance to the passage of fire and smoke equivalent to that provided by the smoke-barrier walls. 2. Smoke barriers used for elevator lobbies in accordance with Section , or are not required to extend from outside wall to outside wall. 3. Smoke barriers used for areas of refuge in accordance with Section are not required to extend from outside wall to outside wall Smoke-Barrier Walls Separating Smoke Compartments. Smoke-barrier walls used to separate smoke compartments shall form an effective membrane continuous from outside wall to outside wall Smoke-Barrier Walls Enclosing Areas of Refuge or Elevator Lobbies. Smoke-barrier walls used to enclose areas of refuge in accordance with Section , or to enclose elevator lobbies in accordance with Section , or , shall form an effective membrane enclosure that terminates at a fire barrier wall having a level of fire protection rating not less than 1 hour, another smoke-barrier wall or an outside wall. A smoke and draft control door assembly as specified in Section shall not be required at each elevator hoistway door opening or at each exit doorway between an area of refuge and the exit enclosure.

IBC Continuity of Smoke Barriers

IBC 711,712 Horizontal Assemblies and Vertical Openings (Modification) 2015 CODE: SECTION 711 FLOOR AND ROOF ASSEMBLIES HORIZONTAL ASSEMBLIES General. Floor and roof assemblies required to have a fire- resistance rating Horizontal assemblies shall comply with Section this section. Non-fire resistance-rated floor and roof assemblies shall comply with Section Horizontal Assemblies. Horizontal assemblies shall comply with Sections through Materials. The floor and roof Assemblies shall be of materials permitted by the building type of construction Continuity. Assemblies shall be continuous without vertical openings, penetrations or joints except as permitted by this section and Sections 712.2, 714.4, 715, and Skylights and other penetrations through a fire-resistance-rated roof deck or slab are permitted to be unprotected, provided that the structural integrity of the fire-resistance-rated roof assembly is maintained. Unprotected skylights shall not be permitted in roof assemblies required to be fire- resistance rated in accordance with Section

IBC 711,712 Horizontal Assemblies and Vertical Openings Supporting Construction. The supporting construction shall be protected to afford the required fire-resistance rating of the horizontal assembly supported. Exception: In buildings of Type IIB, IIIB or VB construction, the construction supporting the horizontal assembly is not required to be fire-resistance-rated at the following: 1. Horizontal assemblies at the separations of incidental uses as specified by Table 509 provided the required fire-resistance rating does not exceed 1 hour. 2. Horizontal assemblies at the separations of dwelling units and sleeping units as required by Section Horizontal assemblies at smoke barriers constructed in accordance with Section Fire-Resistance Rating. The fire-resistance rating of floor and roof horizontal assemblies shall comply with Sections through but shall not be less than that required by the building type of construction.

IBC 711,712 Horizontal Assemblies and Vertical Openings Separating Mixed Occupancies Separating Fire Areas Dwelling Units and Sleeping Units. Horizontal assemblies separating dwelling units in the same building and horizontal assemblies separating sleeping units in the same building shall be a minimum of 1-hour fire-resistance-rated construction. Horizontal assemblies serving as dwelling or sleeping unit separations in accordance with Section shall be not less than 1-hour fire-resistance-rated construction. Exception: Horizontal assemblies separating dwelling units and sleeping units shall be not less than ½-hour fire-resistance-rated construction separations in a buildings of Type IIB, IIIB and VB construction, shall have fire-resistance ratings of not less than 1/2 hour in where the buildings is equipped throughout with an automatic sprinkler system in accordance with Section Separating Smoke Compartments Separating Incidental Uses Other Separations Ceiling Panels Unusable Space.

IBC 711,712 Horizontal Assemblies and Vertical Openings Nonfire-Resistance-Rated Floor and Roof Assemblies. Nonfire- resistance-rated floor, floor/ceiling, roof and roof/ceiling assemblies shall comply with Sections and Materials. Assemblies shall be of materials permitted by the building type of construction Continuity. Assemblies shall be continuous without vertical openings, except as permitted by Section Penetrations. (Relocated to ) Joints. (Relocated to ) Ducts and Air Transfer Openings. (Relocated to ) Floor Fire Door Assemblies (Relocated to ) Smoke Barrier. (Relocated to 3006.)

IBC 711,712 Horizontal Assemblies and Vertical Openings General. The provisions of this section shall apply to the Each vertical opening applications listed shall comply in accordance with one of the protection methods in Sections through Shaft Enclosures Individual Dwelling Unit Escalator Openings Penetrations Joints. Joints shall be permitted where complying with Section or , as applicable Joints in or between Horizontal Assemblies Joints in or between Nonfire-Resistance-Rated Floor Assemblies Ducts and Air Transfer Openings. Penetrations by ducts and air transfer openings shall be protected in accordance with Section Grease ducts shall be protected in accordance with the International Mechanical Code Atriums Masonry Chimney.

IBC 711,712 Horizontal Assemblies and Vertical Openings Two-Story Openings. In other than Groups I-2 and I-3, a floor vertical opening that is not used as one of the applications listed in this section shall be permitted if the opening complies with all of the items below. 1. Does not connect more than two stories. 2. Does not contain a stairway or ramp required by Chapter Does not penetrate a horizontal assembly that separates fire areas or smoke barriers that separate smoke compartments Is not concealed within the construction of a wall or a floor/ceiling assembly Is not open to a corridor in Group I and R occupancies Is not open to a corridor on nonsprinklered floors Is separated from floor openings and air transfer openings serving other floors by construction conforming to required shaft enclosures.

IBC 711,712 Horizontal Assemblies and Vertical Openings Parking Garages. Vertical openings in parking garages for automobile ramps, elevators and duct systems shall comply with Section , or as applicable Automobile Ramps Elevators in Parking Garages Duct Systems in Parking Garages Mezzanine Joints Unenclosed Exit Access Stairways and Ramps. Vertical floor openings created by unenclosed containing exit access stairways or ramps in accordance with Sections and shall be permitted Openings. Floor Fire Doors. Vertical openings for floor fire doors and access doors shall be permitted where protected by Section or floor fire doors in accordance with Section Floor Horizontal Fire Door Assemblies. Floor Horizontal fire door assemblies used to protect openings in fire- resistance-rated floors horizontal assemblies shall be tested in accordance with NFPA 288, and shall achieve a fire- resistance rating not less than the assembly being penetrated. Floor Horizontal fire door assemblies shall be labeled by an approved agency. The label shall be permanently affixed and shall specify the manufacturer, the test standard and the fire- resistance rating.

IBC 711, 712 Horizontal Assemblies and Vertical Openings Access Doors Group I Nonfire-Resistance-Rated Joints. (Portion of 711.4) Skylights. Skylights and other penetrations through a fire-resistance-rated roof deck or slab are permitted to be unprotected, provided that the structural integrity of the fire- resistance-rated roof assembly is maintained. Unprotected skylights shall not be permitted in roof assemblies required to be fire- resistance rated in accordance with Section The supporting construction shall be protected to afford the required fire- resistance rating of the horizontal assembly supported Openings Otherwise Permitted. Vertical openings shall be permitted where allowed by other sections of this code.

IBC 711,712 Horizontal Assemblies and Vertical Openings

IBC Membrane Penetrations (Modification) 2015 CODE: Membrane Penetrations. Penetrations of membranes that are part of a horizontal assembly shall comply with Section or or Where floor/ceiling assemblies are required to have a fire- resistance rating, recessed fixtures shall be installed such that the required fire resistance will not be reduced. Exceptions: 1 through 6 (No change.) 7. The ceiling membrane of 1- and 2-hour fire-resistance-rated horizontal assemblies is permitted to be interrupted with the double wood top plate of a fire-resistance-rated wall assembly that is sheathed with Type X gypsum wallboard, provided that all penetrating items through the double top plates are protected in accordance with Section or and the ceiling membrane is tight to the top plates. The fire- resistance rating of the wall shall not be less than the rating of the horizontal assembly.

IBC Membrane Penetrations

IBC Ducts Transitioning between Shafts (Clarification) 2015 CODE: Ducts and Air Transfer Openings. Ducts transitioning horizontally between shafts shall not require a shaft enclosure provided that the duct penetration into each associated shaft is protected with dampers complying with this section.

IBC 717.3,717.5 Corridor Dampers (Clarification) 2015 CODE: SECTION 202 DEFINITIONS CORRIDOR DAMPER. A listed device intended for use where air ducts penetrate or terminate at horizontal openings in the ceilings of fire- resistance-rated corridors, where the corridor ceiling is permitted to be constructed as required for the corridor walls. DAMPER. See “Ceiling radiation damper,” “Combination fire/smoke damper,” “Corridor damper,” “Fire damper” and “Smoke damper.”

IBC 717.3,717.5 Corridor Dampers Damper Testing. Dampers shall be listed and labeled in accordance with the standards in this section. 1. Fire dampers shall comply with the requirements of UL 555. Only fire dampers and ceiling radiation dampers labeled for use in dynamic systems shall be installed in heating, ventilation and air- conditioning systems designed to operate with fans on during a fire. 2. Smoke dampers shall comply with the requirements of UL 555S. 3. Combination fire/smoke dampers shall comply with the requirements of both UL 555 and UL 555S. 4. Ceiling radiation dampers shall comply with the requirements of UL 555C or shall be tested as part of a fire-resistance-rated floor/ceiling or roof/ceiling assembly in accordance with ASTM E119 or UL Corridor dampers shall comply with requirements of both UL 555 and UL 555S. Corridor dampers shall demonstrate acceptable closure performance when subjected to 150 feet per minute (0.76 mps) velocity across the face of the damper during the UL 555 fire exposure test Corridor Damper Ratings. Corridor dampers shall have the following minimum ratings: 1. One-hour fire-resistance rating, 2. Class I or II leakage rating as specified in Section Corridor Damper Actuation. Corridor damper actuation shall be in accordance with Sections and

IBC 717.3,717.5 Corridor Dampers Where Required. Fire dampers, smoke dampers, and combination fire/smoke dampers, ceiling radiation dampers and corridor dampers shall be provided at the locations prescribed in Sections through and Where an assembly is required to have both fire dampers and smoke dampers, combination fire/smoke dampers or a fire damper and a smoke damper shall be required provided Corridors. Duct and air transfer openings that penetrate corridors shall be protected with dampers as follows. 1. A corridor damper shall be provided where corridor ceilings, constructed as required for the corridor walls as permitted in Section 708.4, Exception 3, are penetrated. 2. A ceiling radiation damper shall be provided where the ceiling membrane of a fire-resistance-rated floor-ceiling or roof-ceiling assembly, constructed as permitted in Section 708.4, Exception 2, is penetrated. 3. A listed smoke damper designed to resist the passage of smoke shall be provided at each point a duct or air transfer opening penetrates a corridor enclosure required to have smoke and draft control doors in accordance with Section Exceptions: 1. Smoke dampers are not required where the building is equipped throughout with an approved smoke control system in accordance with Section 909, and smoke dampers are not necessary for the operation and control of the system. 2. Smoke dampers are not required in corridor penetrations where the duct is constructed of steel not less than inch (0.48 mm) in thickness and there are no openings serving the corridor.

IBC 717.3,717.5 Corridor Dampers

Chapter 8 Interior Finishes No Changes

Chapter 9 Fire Protection Systems Sprinkler Systems—Assembly Occupancies Multiple Fire Areas Sprinkler Systems—Group R Occupancies Exempt Locations for NFPA 13 Sprinklers Open-Ended Corridors Limited Area Sprinkler Systems Domestic Cooking Systems in Group I-2 Condition Fire Alarms—Group E Occupancies Alarm Systems—Group R-2 College and University Buildings , Smoke Alarms Near Cooking Appliances and Bathrooms Elevator Hoistway Pressurization 910 Smoke and Heat Removal 915 Carbon Monoxide Detection

IBC Sprinkler Systems- Assembly Occupancies (Addition) 2015 CODE: Assembly Occupancies on Roofs. Where an occupied roof has an assembly occupancy with an occupant load exceeding 100 for Group A-2 and 300 for other Group A occupancies, all floors between the occupied roof and the level of exit discharge shall be equipped with an automatic sprinkler system in accordance with Section or Exception: Open parking garages of Type I or Type II construction.

IBC Sprinkler Systems- Assembly Occupancies

IBC Multiple Fire Areas (Addition) 2015 CODE: Multiple Fire Areas. An automatic sprinkler system shall be provided where multiple fire areas of Group A-1, A-2, A-3 or A-4 occupancies share exit or exit access components and the combined occupant load of these fire areas is 300 or more.

IBC Sprinkler Systems- Group R Occupancies (Modification) 2015 CODE: Group R. An automatic sprinkler system installed in accordance with Section shall be provided throughout all buildings with a Group R fire area Group R-3 or R-4 Congregate Residences. An automatic sprinkler system installed in accordance with Section shall be permitted in Group R-3 occupancies. or R-4 congregate residences with 16 or fewer residents Group R-4 Condition 1. An automatic sprinkler system installed in accordance with shall be permitted in Group R-4 Condition 1 occupancies Group R-4 Condition 2. An automatic sprinkler system installed in accordance with shall be permitted in Group R-4 Condition 2. Attics shall be protected in accordance with Section or Attics Used for Living Purposes, Storage or Fuel-Fired Equipment. Attics used for living purposes, storage or fuel-fired equipment shall be protected throughout with an automatic sprinkler system installed in accordance with Section Attics Not Used for Living Purposes, Storage or FuelFired Equipment. Attics not used for living purposes, storage or fuel- fired equipment shall be protected in accordance with one of the following: 1. Attics protected throughout by a heat detector system arranged to activate the building fire alarm system in accordance with Section Attics constructed of non-combustible materials. 3. Attics constructed of fire-retardant-treated wood framing complying with Section The automatic fire sprinkler system shall be extended to provide protection throughout the attic space Care Facilities. An automatic sprinkler system installed in accordance with Section shall be permitted in care facilities with five or fewer individuals in a single-family dwelling.

IBC Sprinkler Systems- Group R Occupancies

IBC Exempt Locations for NFPA 13 Sprinklers (Modification) 2015 CODE: NFPA 13 Sprinkler Systems. Where the provisions of this code require that a building or portion thereof be equipped throughout with an automatic sprinkler system in accordance with this section, sprinklers shall be installed throughout in accordance with NFPA 13 except as provided in Sections and Exempt Locations. (No changes.) Bathrooms. In Group R occupancies, other than Group R-4 occupancies, sprinklers shall not be required in bathrooms that do not exceed 55 square feet in area and are located within individual dwelling units or sleeping units, provided that walls and ceilings, including the walls and ceilings behind a shower enclosure or tub, are of noncombustible or limited-combustible materials with a 15-minute thermal barrier rating.

IBC Open-Ended Corridors (Clarification) 2015 CODE: Open-Ended Corridors. Sprinkler protection shall be provided in open-ended corridors and associated exterior stairways and ramps as specified in Section , Exception 3.

IBC Limited Area Sprinkler Systems (Modification) 2015 CODE: Installation Requirements. Automatic sprinkler systems shall be designed and installed in accordance with Sections through Domestic Services. Where the domestic service provides the water supply for the automatic sprinkler system, the supply shall be in accordance with this section Limited area Sprinkler Systems. Limited area sprinkler systems serving fewer than 20 sprinklers on any single connection are permitted to be connected to the domestic service where a wet automatic standpipe is not available. Limited area sprinkler systems connected to domestic water supplies shall comply with each of the following requirements: 1. Valves shall not be installed between the domestic water riser control valve and the sprinklers. Exception: An approved indicating control valve supervised in the open position in accordance with Section The domestic service shall be capable of supplying the simultaneous domestic demand and the sprinkler demand required to be hydraulically calculated by NFPA 13, NFPA 13D or NFPA 13R Residential Combination Services. A single combination water supply shall be allowed provided that the domestic demand is added to the sprinkler demand as required by NFPA 13R Limited Area Sprinkler Systems. Limited area sprinkler systems shall be in accordance with the standards listed in Section except as provided in Sections through Number of Sprinklers. Limited area sprinkler systems shall not exceed six sprinklers in any single fire area Occupancy Hazard Classification. Only areas classified by NFPA 13 as Light Hazard or Ordinary Hazard Group 1 shall be permitted to be protected by limited area sprinkler systems.

IBC Limited Area Sprinkler Systems Piping Arrangement. Where a limited area sprinkler system is installed in a building with an automatic wet standpipe system, sprinklers shall be supplied by the standpipe system. Where a limited area sprinkler system is installed in a building without an automatic wet standpipe system, water shall be permitted to be supplied by the plumbing system provided that the plumbing system is capable of simultaneously supplying domestic and sprinkler demands Supervision. Control valves shall not be installed between the water supply and sprinklers unless the valves are of an approved indicating type that are supervised or secured in the open position Calculations. Hydraulic calculations in accordance with NFPA 13 shall be provided to demonstrate that the available water flow and pressure are adequate to supply all sprinklers installed in any single fire area with discharge densities corresponding to the hazard classification.

IBC Limited Area Sprinkler Systems

IBC Domestic Cooking Systems in Group I-2 Condition 1 (Addition) 2015 CODE: Domestic Cooking Systems in Group I-2 Condition 1. In Group I-2 Condition 1, occupancies where cooking facilities are installed in accordance with Section of this code, the domestic cooking hood provided over the cooktop or range shall be equipped with an automatic fire-extinguishing system of a type recognized for protection of domestic cooking equipment. Preengineered automatic extinguishing systems shall be tested in accordance with UL 300A and listed and labeled for the intended application. The system shall be installed in accordance with this code, its listing and the manufacturer’s instructions Manual System Operation and Interconnection. Manual actuation and system interconnection for the hood suppression system shall be installed in accordance with Sections and Portable Fire Extinguishers for Domestic Cooking Equipment in Group I-2 Condition 1. A portable fire extinguisher complying with Section 906 shall be installed within 30 feet (9144 mm) distance of travel from domestic cooking appliances.

IBC Domestic Cooking Systems in Group I-2 Condition 1

IBC Fire Alarms - Group E Occupancies (Modification) 2015 CODE: Group E. A manual fire alarm system that initiates the occupant notification signal utilizing an emergency voice/alarm communication system meeting the requirements of Section and installed in accordance with Section shall be installed in Group E occupancies. When automatic sprinkler systems or smoke detectors are installed, such systems or detectors shall be connected to the building fire alarm system. Exceptions: 1. A manual fire alarm system is not required in Group E occupancies with an occupant load of or less. 2. Emergency voice/alarm communication systems meeting the requirements of Section and installed in accordance with Section shall not be required in Group E occupancies with occupant loads of 100 or less, provided that activation of the manual fire alarm system initiates an approved occupant notification signal in accordance with Section Manual fire alarm boxes are not required in Group E occupancies where all of the following apply: Interior corridors are protected by smoke detectors Auditoriums, cafeterias, gymnasiums and similar areas are protected by heat detectors or other approved detection devices Shops and laboratories involving dusts or vapors are protected by heat detectors or other approved detection devices Manual fire alarm boxes shall not be required in Group E occupancies where all of the following apply: 4.1. The building is equipped throughout with an approved automatic sprinkler system installed in accordance with Section The emergency voice/alarm communication system will activate on sprinkler waterflow Manual activation is provided from a normally occupied location.

IBC Fire Alarms - Group E Occupancies

IBC Alarm Systems- Group R-2 College and University Buildings (Modification) 2015 CODE: Group R-2 College and University Buildings. An automatic smoke detection system that activates the occupant notification system in accordance with Section shall be installed in Group R-2 occupancies operated by a college and or university for student or staff housing buildings in the following locations: 1. Common spaces outside of dwelling units and sleeping units. 2. Laundry rooms, mechanical equipment rooms and storage rooms. 3. All interior corridors serving sleeping units or dwelling units. Exception: An automatic smoke detection system is not required in buildings that do not have interior corridors serving sleeping units or dwelling units and where each sleeping unit or dwelling unit either has a means of egress door opening directly to an exterior exit access that leads directly to an exit or a means of egress door opening directly to an exit. Required smoke alarms in dwelling units and sleeping units in Group R-2 occupancies operated by a college and or university for student or staff housing buildings shall be interconnected with the fire alarm system in accordance with NFPA 72. Exception: (Relocated)

IBC , Smoke Alarms Near Cooking Appliances and Bathrooms (Modification) 2015 CODE: Installation Near Cooking Appliances. Smoke alarms shall not be installed in the following locations unless this would prevent placement of a smoke alarm in a location required by Section or ; 1. Ionization smoke alarms shall not be installed less than 20 feet (6096 mm) horizontally from a permanently installed cooking appliance. 2. Ionization smoke alarms with an alarm-silencing switch shall not be installed less than 10 feet (3048 mm) horizontally from a permanently installed cooking appliance. 3. Photoelectric smoke alarms shall not be installed less than 6 feet (1829 mm) horizontally from a permanently installed cooking appliance Installation Near Bathrooms. Smoke alarms shall be installed not less than 3 feet (914 mm) horizontally from the door or opening of a bathroom that contains a bathtub or shower unless this would prevent placement of a smoke alarm required by Section or

IBC , Smoke Alarms Near Cooking Appliances and Bathrooms

IBC Elevator Hoistway Pressurization (Modification) 2015 CODE: Elevator Hoistway Pressurization Alternative. Where elevator hoistway pressurization is provided in lieu of required enclosed elevator lobbies, the pressurization system shall comply with Sections through Pressurization Requirements. Elevator hoistways shall be pressurized to maintain a minimum positive pressure of 0.10 inch of water (25 Pa) and a maximum positive pressure of 0.25 inch of water (67 Pa) with respect to adjacent occupied space on all floors. This pressure shall be measured at the midpoint of each hoistway door, with all elevator cars at the floor of recall and all hoistway doors on the floor of recall open and all other hoistway doors closed. The pressure differentials shall be measured between the hoistway and the adjacent elevator landing. The opening and closing of hoistway doors at each level must be demonstrated during this test. The supply air intake shall be from an outside, uncontaminated source located a minimum distance of 20 feet (6096 mm) from any air exhaust system or outlet.

Exceptions: 1. On floors containing only Group R occupancies, the pressure differential is permitted to be measured between the hoistway and a dwelling unit or sleeping unit. 2. Where an elevator opens into a lobby enclosed in accordance with Section or the pressure differential is permitted to be measured between the hoistway and the space immediately outside the door(s) from the floor to the enclosed lobby. 3. The pressure differential is permitted to be measured relative to the outdoor atmosphere on floors other than the following: 3.1. The fire floor The two floors immediately below the fire floor The floor immediately above the fire floor. 4. The minimum positive pressure of 0.10 inch of water (25 Pa) and a maximum positive pressure of 0.25 inch of water (67 Pa) with respect to occupied floors is not required at the floor of recall with the doors open Use of Ventilation Systems. Ventilation systems, other than hoistway supply air systems, are permitted to be used to exhaust air from adjacent spaces on the fire floor, two floors immediately below and one floor immediately above the fire floor to the building’s exterior where necessary to maintain positive pressure relationships as required in Section during operation of the elevator shaft pressurization system. IBC Elevator Hoistway Pressurization

IBC 910 Smoke and Heat Removal (Modification) 2015 CODE: SECTION 910 SMOKE AND HEAT REMOVAL General. Where required by this code, or otherwise installed, smoke and heat vents or mechanical smoke exhaust removal systems and draft curtains shall conform to the requirements of this section. Exceptions: 1. Frozen food warehouses used solely for storage of Class I and II commodities where protected by an approved automatic sprinkler system. 2. Where areas of buildings are equipped with early suppression fast-response (ESFR) sprinklers, automatic smoke and heat vents shall not be required within these areas Where Required. Smoke and heat vents or a mechanical smoke removal system shall be installed in the roofs of buildings or portions thereof occupied for the uses set forth in as required by Sections and Exceptions: In occupied portions of a building where the upper surface of the story is not a roof assembly, mechanical smoke exhaust in accordance with Section shall be an acceptable alternative. 1. Frozen food warehouses used solely for storage of Class I and II commodities where protected by an approved automatic sprinkler system. 2. Smoke and heat removal shall not be required in areas of buildings equipped with early suppression fast-response (ESFR) sprinklers. 3. Smoke and heat removal shall not be required in areas of buildings equipped with control mode special application sprinklers with a response time index of 50 (m. s)1/2 or less, which are listed to control a fire in the stored commodities with 12 or fewer sprinklers Group F-1 or S-1. Smoke and heat vents installed in accordance with Section or a mechanical smoke removal system installed in accordance with Section shall be installed in buildings and portions thereof used as a Group F-1 or S-1 occupancy having more than 50,000 square feet (4645 m2) of undivided area. In occupied portions of a building equipped throughout with a sprinkler system in accordance with Section where the upper surface of the story is not a roof assembly, a mechanical smoke removal system in accordance with Section shall be installed. Exception: Group S-1 aircraft repair hangars.

IBC 910 Smoke and Heat Removal High-Piled Combustible Storage. Smoke and heat removal required by Table of the International Fire Code for buildings and portions thereof containing high-piled combustible stock or rack storage shall be installed in accordance with Section in unsprinklered buildings. In buildings and portions thereof containing high-piled combustible storage equipped throughout with an automatic sprinkler system in accordance with Section in any occupancy group in accordance with Section 413 and the International Fire Code, a smoke and heat removal system shall be installed in accordance with Section or In occupied portions of a building equipped throughout with a sprinkler system in accordance with Section where the upper surface of the story is not a roof assembly, a mechanical smoke removal system in accordance with Section shall be installed Smoke and Heat Vents Design and Installation. The design and installation of smoke and heat vents and draft curtains shall be as specified in accordance with Sections through and Table Design Listing and Labeling. Smoke and heat vents shall be listed and labeled to indicate compliance with UL 793 or FM Vent Operation Vent Dimensions Smoke and Heat Vent Locations. (No significant changes.)

IBC 910 Smoke and Heat Removal Smoke and Heat Vents Area. The required aggregate area of smoke and heat vents shall be calculated as follows:For buildings equipped throughout with an automatic sprinkler system in accordance with Section : AVR 5 V/9000____________________________ (Equation 9-4) Where: AVR 5 the required aggregate vent area (ft2) V 5 volume (ft3) of the area that requires smoke removal For unsprinklered buildings: AVR 5 AFA/50 ____________________________ (Equation 9-5) Where: AVR 5 the required aggregate vent area (ft2) AFA 5 the area of the floor in the area that requires smoke removal Draft Curtains Mechanical Smoke Removal Systems Exhaust. Where approved by the fire code official, engineered Mechanical smoke removal systems exhaust shall be designed and installed in accordance with Sections through an acceptable alternative to smoke and heat vents Location Size Operation Automatic Sprinklers Required. The building shall be equipped throughout with an approved automatic sprinkler system in accordance with Section

Activation. The mechanical smoke removal system shall be activated by manual controls only Manual Control Location. Manual controls shall be located so as to be accessible to the fire service from an exterior door of the building and be protected against interior fire exposure by not less than 1-hour fire barriers constructed in accordance with Section 707 or horizontal assemblies constructed in accordance with Section 711, or both Control Wiring and Control. Wiring for operation and control of mechanical smoke removal systems exhaust fans shall be connected ahead of the main disconnect in accordance with Section E of NFPA 70 and be protected against interior fire exposure to temperatures in excess of 1,000°F (538°C) for a period of not less than 15 minutes. Controls shall be located so as to be immediately accessible to the fire service from the exterior of the building and protected against interior fire exposure by not less than 1-hour fire barriers constructed in accordance with Section 707 or horizontal assemblies constructed in accordance with Section 711, or both Supply Air Controls Interlocks. On combination comfort air handling/smoke removal systems or independent comfort air-handling systems, fans shall be controlled to shut down in accordance with the approved smoke control sequence. Where building air-handling and mechanical smoke removal systems are combined or where independent building air-handling systems are provided, fans shall automatically shut down in accordance with the International Mechanical Code. The manual controls provided for the smoke removal system shall have the capability to override the automatic shutdown of fans that are part of the smoke removal system. IBC 910 Smoke and Heat Removal

IBC 915 Carbon Monoxide Detection (Modification) 2015 CODE: Carbon Monoxide Alarms Carbon Monoxide Detection Systems. SECTION 915 CARBON MONOXIDE DETECTION Carbon Monoxide Detection. Carbon monoxide detection shall be installed in new buildings in accordance with Sections through Carbon monoxide detection shall be installed in existing buildings in accordance with Chapter 11 of the International Fire Code Where Required. Carbon monoxide detection shall be provided in Groups I-1, I-2, I-4 and R occupancies, and in classrooms in Group E occupancies in the locations specified in where any of the conditions in Sections through exist Fuel-Burning Appliances and Fuel-Burning Fireplaces. Carbon monoxide detection shall be provided in dwelling units, sleeping units and classrooms that contain a fuel-burning appliance or a fuel- burning fireplace Forced Air Furnaces. Carbon monoxide detection shall be provided in dwelling units, sleeping units and classrooms served by a fuel-burning, forced air furnace. Exception: Carbon monoxide detection shall not be required in dwelling units, sleeping units and classrooms if carbon monoxide detection is provided in the first room or area served by each main duct leaving the furnace, and the carbon monoxide alarm signals are automatically transmitted to an approved location.

Fuel-Burning Appliances Outside of Dwelling Units, Sleeping Units and Classrooms. Carbon monoxide detection shall be provided in dwelling units, sleeping units and classrooms located in buildings that contain fuel-burning appliances or fuel-burning fireplaces. Exceptions: 1. Carbon monoxide detection shall not be required in dwelling units, sleeping units and classrooms if there are no communicating openings between the fuel- burning appliance or fuel-burning fireplace and the dwelling unit, sleeping unit or classroom. 2. Carbon monoxide detection shall not be required in dwelling units, sleeping units and classrooms where carbon monoxide detection is provided in one of the following locations: 2.1 In an approved location between the fuel-burning appliance or fuel- burning fireplace and the dwelling unit, sleeping unit or classroom, 2.2 On the ceiling of the room containing the fuel- burning appliance or fuel- burning fireplace. IBC 915 Carbon Monoxide Detection

Private Garages. Carbon monoxide detection shall be provided in dwelling units, sleeping units, and classrooms in buildings with attached private garages. Exceptions: 1. Carbon monoxide detection shall not be required where there are no communicating openings between the private garage and the dwelling unit, sleeping unit or classroom. 2. Carbon monoxide detection shall not be required in dwelling units, sleeping units and classrooms located more than one story above or below a private garage. 3. Carbon monoxide detection shall not be required where the private garage connects to the building through an open-ended corridor. 4. Where carbon monoxide detection is provided in an approved location between openings to a private garage and dwelling units, sleeping units or classrooms, carbon monoxide detection shall not be required in the dwelling units, sleeping units or classrooms Exempt Garages. For determining compliance with Section , an open parking garage, complying with Section 406.5, or an enclosed parking garage complying with Section shall not be considered a private garage. IBC 915 Carbon Monoxide Detection

915.2 Locations. Where required by Section , carbon monoxide detection shall be installed in the locations specified in Sections through Dwelling Units. Carbon monoxide detection shall be installed in dwelling units outside of each separate sleeping area in the immediate vicinity of the bedrooms. Where a fuel-burning appliance is located within a bedroom or its attached bathroom, carbon monoxide detection shall be installed within the bedroom Sleeping Units. Carbon monoxide detection shall be installed in sleeping units. Exception: Carbon monoxide detection shall be allowed to be installed outside of each separate sleeping area in the immediate vicinity of the sleeping unit where the sleeping unit or its attached bathroom do not contain a fuel burning appliance and is not served by a forced air furnace Group E Occupancies. Carbon monoxide detection shall be installed in classrooms in Group E occupancies. Carbon monoxide alarm signals shall be automatically transmitted to an on-site location that is staffed by school personnel. Exception: Carbon monoxide alarm signals shall not be required to be automatically transmitted to an on- site location that is staffed by school personnel in Group E occupancies with an occupant load of 30 or less Detection Equipment. Carbon monoxide detection required by Sections through shall be provided by carbon monoxide alarms complying with Section or carbon monoxide detection systems complying with Section Carbon Monoxide Alarms. Carbon monoxide alarms shall comply with Sections through Power Source. Carbon monoxide alarms shall receive their primary power from the building wiring where such wiring is served from a commercial source, and when primary power is interrupted, shall receive power from a battery. Wiring shall be permanent and without a disconnecting switch other than that required for overcurrent protection. Exception: Where installed in buildings without commercial power, battery-powered carbon monoxide alarms shall be an acceptable alternative Listings. Carbon monoxide alarms shall be listed in accordance with UL IBC 915 Carbon Monoxide Detection

Combination Alarms. Combination carbon monoxide/smoke alarms shall be an acceptable alternative to carbon monoxide alarms. Combination carbon monoxide/smoke alarms shall be listed in accordance with UL 2034 and UL Carbon Monoxide Detection Systems. Carbon monoxide detection systems shall be an acceptable alternative to carbon monoxide alarms and shall comply with Sections through General. Carbon monoxide detection systems shall comply with NFPA 720. Carbon monoxide detectors shall be listed in accordance with UL Locations. Carbon monoxide detectors shall be installed in the locations specified in Section These locations supersede the locations specified in NFPA Combination Detectors. Combination carbon monoxide/smoke detectors installed in carbon monoxide detection systems shall be an acceptable alternative to carbon monoxide detectors, provided they are listed in accordance with UL 2075 and UL Maintenance. Carbon monoxide alarms and carbon monoxide detection systems shall be maintained in accordance with the International Fire Code. IBC 915 Carbon Monoxide Detection

MEANS OF EGRESS Chapter 10

Chapter 10 Means of Egress Cumulative Occupant Loads Table Occupant Load Factors 1006, 1007 Numbers of Exits and Exit Access Doorways Exit and Exit Access Doorway Configuration Two-Way Communication Systems Door Operations—Locking Systems , Ladders Handrail Projections Egress through Intervening Spaces Travel Distance Increase for Groups F-1 and S Aisles in Groups B and M Corridor Width and Capacity Stairway Extension Stepped Aisle Construction Tolerances

IBC Table Cumulative Occupant Loads (Modification) 2015 CODE: Cumulative Occupant loads. Where the path of egress travel includes intervening rooms, areas or spaces, cumulative occupant loads shall be determined in accordance with this section Intervening Spaces or Accessory areas. Where occupants egress from one or more rooms, areas or spaces through another others, the design occupant load shall be the combined occupant load of interconnected accessory or intervening spaces. Design of egress path capacity shall be based on the cumulative portion of occupant loads of all rooms, areas or spaces to that point along the path of egress travel Adjacent levels for Mezzanines. That portion of the occupant load of a mezzanine or story with required egress through a room, area or space on an adjacent level shall be added to the occupant load of that room, area or space Adjacent Stories. Other than for the egress components designed for convergence in accordance with Section , the occupant load from separate stories shall not be added.

IBC Cumulative Occupant Loads

IBC Table Occupant Load Factors

(Modification) 2015 CODE: Common path of egress travel. The common path of egress travel shall not exceed the common path of egress travel distances in Table Table Common Path of Egress Travel Table Spaces with One Exit or Exit Access Doorway IBC 1006, 1007 Number of Exits and Exit Access Doorways

SECTION 1006 NUMBERS OF EXITS AND EXIT ACCESS DOORWAYS General. The number of exits or exit access doorways required within the means of egress system shall comply with the provisions of Section for spaces, including mezzanines, and Section for stories Egress from Spaces. Rooms, areas or spaces, including mezzanines, within a story or basement shall be provided with the number of exits or access to exits in accordance with this section Egress Based on Occupant load and Common Path of Egress Travel Distance. Two exits or exit access doorways from any space shall be provided where the design occupant load or the common path of egress travel distance exceeds the values listed in Table Exceptions: 1. In Group R-2 and R-3 occupancies, one means of egress is permitted within and from individual dwelling units with a maximum occupant load of 20 where the dwelling unit is equipped throughout with an automatic sprinkler system in accordance with Section or and the common path of egress travel does not exceed 125 feet ( mm). 2. Care suites in Group I-2 occupancies complying with Section IBC 1006, 1007 Number of Exits and Exit Access Doorways

Access to Exits at Adjacent Levels. Egress from Stories or Occupied roofs. The means of egress system serving any story or occupied roof shall be provided with the number of exits or access to exits based on the aggregate occupant load served in accordance access to exits at adjacent levels. egress from Stories or Occupied roofs. The means of egress system serving any story or occupied roof shall be provided with the number of exits or access to exits based on the aggregate occupant load served in accordance with this section. Access to exits at other levels shall be by stairways or ramps. Where access to exits occurs from adjacent building levels, the horizontal and vertical exit access travel distance to the closest exit shall not exceed that specified in Section Access to exits at other levels shall be from an adjacent story. The path of egress travel to an exit shall not pass through more than one adjacent story. Each story above the second story of a building shall have not less than one interior or exterior exit stairway, or interior or exterior exit ramp. Where three or more exits or access to exits are required, not less than 50 percent of the required exits shall be interior or exterior exit stairways or ramps. Exceptions: Landing platforms or roof areas for helistops that are less than 60 feet ( mm) long, or less than 2,000 square feet (186 m2) in area, shall be permitted to access the second exit by a fire escape, alternating tread device or ladder leading to the story or level below. 1. Interior exit stairways and interior exit ramps are not required in open parking garages where the means of egress serves only the open parking garage. 2. Interior exit stairways and interior exit ramps are not required in outdoor facilities where all portions of the means of egress are essentially open to the outside. SECTION 1021 NUMBER OF EXITS AND EXIT CONFIGURATION (Relocated to to new 1006.) SECTION 1007 EXIT AND EXIT ACCESS DOORWAY CONFIGURATION IBC 1006, 1007 Number of Exits and Exit Access Doorways

(Modification) 2015 CODE: Measurement point. The separation distance required in Section shall be measured in accordance with the following: 1. The separation distance to exit or exit access doorways shall be measured to any point along the width of the doorway. 2. The separation distance to exit access stairways shall be measured to the closest riser. 3. The separation distance to exit access ramps shall be measured to the start of the ramp run Three or More exits or Exit Access Doorways. Where access to three or more exits is required, not less than two exit or exit access doorways shall be arranged in accordance with the provisions of Section Additional required exit or exit access doorways shall be arranged a reasonable distance apart so that if one becomes blocked, the others will be available remoteness of exit access Stairways or ramps. Where two exit access stairways or ramps provide the required means of egress to exits at another story, the required separation distance shall be maintained for all portions of such exit access stairways or ramps Three or More Exit Access Stairways or Ramps. Where more than two exit access stairways or ramps provide the required means of egress, not less than two shall be arranged in accordance with Section IBC Exit and Exit Access Doorway Configuration

(Clarification) 2015 CODE: Two-Way Communication. A two-way communication system complying with Sections and shall be provided at the landing serving each elevator landing or bank of elevators on each accessible floor that is one or more stories above or below the story of exit discharge complying with Sections and Exceptions: 1. Two-way communication systems are not required at the landing serving each elevator landing or bank of elevators where the two-way communication system is provided within areas of refuge in accordance with Section Two-way communication systems are not required on floors provided with ramps conforming to the provisions of Section Two-way communication systems are not required at the landings serving only service elevators that are not designated as part of the accessible means of egress or serve as part of the required accessible route into a facility. 4. Two-way communication systems are not required at the landings serving only freight elevators. 5. Two-way communication systems are not required at the landing serving a private residence elevator. IBC Two-Way Communication Systems

(Modification) 2015 CODE: Door Operations. Except as specifically permitted by this section, egress doors shall be readily openable from the egress side without the use of a key or special knowledge or effort locks and latches. Locks and latches shall be permitted to prevent operation of doors where any of the following exists: 1. (No change.) 2. In buildings in occupancy Group A having an occupant load of 300 or less, Groups B, F, M and S, and in places of religious worship, the main exterior door or doors are permitted to be equipped with key-operated locking devices from the egress side provided: 2.1. The locking device is readily distinguishable as locked; 2.2. A readily visible durable sign is posted on the egress side on or adjacent to the door stating: THIS DOOR TO REMAIN UNLOCKED WHEN BUILDING THIS SPACE IS OCCUPIED. The sign shall be in letters 1 inch (25 mm) high on a contrasting background; and 2.3. The use of the key-operated locking device is revocable by the building official for due cause. Items 3, 4 and 5 (No change.) Special Controlled Egress locking arrangements in Doors in Groups I-1 and Group I-2. Approved, special egress locks Electric locking systems, including electro-mechanical locking systems and electromagnetic locking systems, shall be permitted to be locked in the means of egress in a Group I-1 or I-2 occupancy occupancies where the clinical needs of persons receiving care require their containment. such locking. Special egress locks Controlled egress doors shall be permitted in such occupancies where the building is equipped throughout with an automatic sprinkler system in accordance with Section or an approved automatic-smoke or heat detection system installed in accordance with Section 907, provided that the doors are installed and operate in accordance with all of the following. (Items 1 through 8 and two exceptions are not shown.) Delayed egress locks Access Controlled Sensor Release of Electrically Locked Egress Doors. The electric locks on sensor released The entrance doors located in a means of egress in buildings with an occupancy in Groups A, B, E, I-1, I-2, I-4, M, R-1 or R-2 and entrance doors to tenant spaces in occupancies in Groups A, B, E, I-1, I-2, I-4, M, R-1 or R-2 are permitted to be equipped with an approved entrance and egress access control system, listed in accordance with UL 294, which shall be where installed and operated in accordance with all of the following criteria: (Items 1 through 6 are not shown.) Electromagnetically Locked Egress Doors. Doors in the means of egress in buildings with an occupancy in Group A, B, E, I-1, I-2, I-4, M, R-1 or R-2 and doors to tenant spaces in Group A, B, E, I-1, I-2, I-4, M, R-1 or R-2 shall be permitted to be electromagnetically locked with an electromagnetic locking system where if equipped with listed hardware that incorporates a built-in switch and meet the requirements below, where installed and operated in accordance with all of the following. (Items 1 through 6 are not shown.) IBC Door Operation Locking Systems

(Addition) 2015 CODE: Ships ladders. Ship ladders are permitted to be used in Group I-3 as a component of a means of egress to and from control rooms or elevated facility observation stations not more than 250 square feet (23 m2) with not more than 3 occupants and for access to unoccupied roofs. The minimum clear width at and below the handrails shall be 20 inches (508 mm) Handrails of Ship ladders. Handrails shall be provided on both sides of ship ladders Treads of Ship ladders. Ship ladders shall have a minimum tread depth of 5 inches (127 mm). The tread shall be projected such that the total of the tread depth plus the nosing projection is not less than 8½ inches (216 mm). The maximum riser height shall be 9½ inches (241 mm).Handrails shall be provided on both sides of ship ladders. The minimum clear width at and below the handrails shall be 20 inches (508 mm) Ladders. Permanent ladders shall not serve as a part of the means of egress from occupied spaces within a building. Permanent ladders shall be permitted to provide access to the following areas: 1. Spaces frequented only by personnel for maintenance, repair or monitoring of equipment. 2. Nonoccupiable spaces accessed only by catwalks, crawl spaces, freight elevators or very narrow passageways. 3. Raised areas used primarily for purposes of security, life safety or fire safety including, but not limited to, observation galleries, prison guard towers, fire towers or lifeguard stands. 4. Elevated levels in Group U not open to the general public. 5. Non-occupied roofs that are not required to have stairway access in accordance with Section Ladders shall be constructed in accordance with Section of the International Mechanical Code. IBC , Ladders

(Clarification) 2015 CODE: Projections. On ramps and on ramped aisles that are part of an accessible route, the clear width between handrails shall be 36 inches (914 mm) minimum. Projections into the required width of aisles, stairways and ramps at each side shall not exceed 4½ inches (114 mm) at or below the handrail height. Projections into the required width shall not be limited above the minimum headroom height required in Section Projections due to intermediate handrails shall not constitute a reduction in the egress width. Where a pair of intermediate handrails is provided within the stairway width without a walking surface between the pair of intermediate handrails and the distance between the pair of intermediate handrails is greater than 6 inches (152 mm), the available egress width shall be reduced by the distance between the closest edges of each such intermediate pair of handrails that is greater than 6 inches (152 mm). IBC Handrail Projections

(Modification) 2015 CODE: egress through Intervening Spaces. Egress through intervening spaces shall comply with this section. 1. Exit access through an enclosed elevator lobby is permitted. Access to at least one of the required exits shall be provided without travel through the enclosed elevator lobbies required by Section 3006, 3007 or Where the path of exit access travel passes through an enclosed elevator lobby, the level of protection required for the enclosed elevator lobby is not required to be extended to the exit unless direct access to an exit is required by other sections of this code. (No changes for previously existing 4 items and exceptions.) Corridor Continuity. Fire-resistance-rated corridors shall be continuous from the point of entry to an exit, and shall not be interrupted by intervening rooms. Where the path of egress travel within a fire-resistance-rated corridor to the exit includes travel along unenclosed exit access stairways or ramps, the fire-resistance-rating shall be continuous for the length of the stairway or ramp and for the length of the connecting corridor on the adjacent floor leading to the exit. exceptions: 1. Foyers, lobbies or reception rooms constructed as required for corridors shall not be construed as intervening rooms. 2. Enclosed elevator lobbies as permitted by Item 1 of Section shall not be construed as intervening rooms Means of Egress. Elevator lobbies shall be provided with at least one means of egress complying with Chapter 10 and other provisions in this code. Egress through an elevator lobby shall be permitted in accordance with Item 1 of Section Fire Service Access Elevator Lobby. The fire service access elevator shall open into a fire service access elevator lobby in accordance with Sections through Egress is permitted through the elevator lobby in accordance with Item 1 of Section Exception: Where a fire service access elevator has two entrances onto a floor, the second entrance shall be permitted to open into an elevator lobby in accordance with Section Occupant Evacuation Elevator Lobby. The occupant evacuation elevators shall open into an elevator lobby in accordance with Sections through Egress is permitted through the elevator lobby in accordance with Item 1 of Section IBC Egress Through Intervening Spaces

(Modification) 2015 CODE: Groups F-1 and S-1 Increase. The maximum exit access travel distance shall be 400 feet (122 m) in Group F-1 or S-1 occupancies where all of the following conditions are met: 1. The portion of the building classified as Group F-1 or S-1 is limited to one story in height. 2. The minimum height from the finished floor to the bottom of the ceiling or roof slab or deck is 24 feet (7315 mm). 3. The building is equipped throughout with an automatic fire sprinkler system in accordance with Section IBC Travel Distance Increase for Groups F-1 and S-1

(Modification) 2015 CODE: Aisles in Groups B and M. In Groups B and M occupancies, the minimum clear aisle width shall be determined by Section for the occupant load served, but shall not be not less than 36 inches (914 mm) that required for corridors by Section Exception: Nonpublic aisles serving less than 50 people and not required to be accessible by Chapter 11 need not exceed 28 inches (711 mm) in width Aisles in Other than Assembly Spaces and Groups B and M. In other than rooms or spaces used for assembly purposes and Group B and M occupancies, the minimum clear aisle width capacity shall be determined by Section for the occupant load served, but the width shall be not less than that required for corridors by Section not be less than 36 inches (914 mm). Exception: Nonpublic aisles serving less than 50 people and not required to be accessible by Chapter 11 need not exceed 28 inches (711 mm) in width. IBC Aisles in Groups B and M

ACCESSIBILITY Chapter 11

Areas in Places of Religious Worship Multistory Buildings and Facilities , Accessible Spaces and Routes , Accessible Units in Assisted Living Facilities Group R—Accessible Units Accessible Water Closet Compartments Accessible Lavatories 1110 Recreational Facilities Chapter 11 Accessibility

IBC Areas in Places of Religious Worship (Modification) 2015 CODE: General Exceptions. Sites, buildings, structures, facilities, elements and spaces shall be exempt from this chapter to the extent specified in this section Areas in Places of Religious Worship. Raised or lowered areas, or portions of areas, in places of religious worship that are less than 300 square feet (30 m2) in area and located 7 inches (178 mm) or more above or below the finished floor and used primarily for the performance of religious ceremonies are not required to comply with this chapter.

(Modification) 2015 CODE: Multilevel Story Buildings and Facilities. At least one accessible route shall connect each accessible level story, including mezzanines and mezzanine in multilevel buildings and facilities. Exceptions: 1. An accessible route is not required to stories and mezzanines that have an aggregate area of not more than 3000 square feet (278.7 m2) and are located above and below accessible levels. This exception shall not apply to: 1.1. Multiple tenant facilities of Group M occupancies containing five or more tenant spaces used for the sales or rental of goods and where at least one such tenant space is located on a floor level above or below the accessible levels; 1.2. Levels Stories or mezzanines containing offices of health care providers (Group B or I); or 1.3. Passenger transportation facilities and airports (Group A-3 or B); or 1.4. Government buildings. 2. Levels Stories or mezzanines that do not contain accessible elements or other spaces as determined by Sections 1107 or 1108 are not required to be served by an accessible route from an accessible level. 3. In air traffic control towers, an accessible route is not required to serve the cab and the floor immediately below the cab. 4. Where a two-story building or facility has one story or mezzanine with an occupant load of five or fewer persons that does not contain public use space, that story or mezzanine shall not be required to be connected by an accessible route to the story above or below. 5. Vertical access to elevated employee work stations within a courtroom is not required at the time of initial construction, provided a ramp, lift or elevator can be installed without requiring reconfiguration or extension of the courtroom or extension of the electrical system. (Relocated to Section ) IBC Multistory Buildings and Facilities

(Modification) 2015 CODE: Accessible Spaces. Rooms and spaces available to the general public or available for use by residents and serving Accessible units, Type A units or Type B units shall be accessible. Accessible spaces shall include toilet and bathing rooms, kitchen, living and dining areas and any exterior spaces, including patios, terraces and balconies. Exceptions: 1. Stories and mezzanines exempted by Section Recreational facilities in accordance with Section In Group I-2 facilities, doors to sleeping units shall be exempted from the requirements for maneuvering clearance at the room side provided the door is a minimum of 44 inches (1118 mm) in width. (Relocated to Section ) 3. Exterior decks, patios or balconies that are part of Type B units and have impervious surfaces, and that are not more than 4 inches (102 mm) below the finished floor level of the adjacent interior space of the unit. IBC , Accessible Spaces and Routes

Accessible Route. At least one accessible route shall connect accessible building or facility entrances with the primary entrance of each Accessible unit, Type A unit and Type B unit within the building or facility and with those exterior and interior spaces and facilities that serve the units. Exceptions: 1. If due to circumstances outside the control of the owner, either the slope of the finished ground level between accessible facilities and buildings exceeds one unit vertical in 12 units horizontal (1:12), or where physical barriers or legal restrictions prevent the installation of an accessible route, a vehicular route with parking that complies with Section 1106 at each public or common use facility or building is permitted in place of the accessible route. 2. Exterior decks, patios or balconies that are part of Type B units and have impervious surfaces, and that are not more than 4 inches (102 mm) below the finished floor level of the adjacent interior space of the unit. (Relocated to Section ) 2. In Group I-3 facilities, an accessible route is not required to connect stories or mezzanines where Accessible units, all common use areas serving Accessible units and all public use areas are on an accessible route. 3. In Group R-2 facilities with Type A units complying with Section , an accessible route is not required to connect stories or mezzanines where Type A units, all common use areas serving Type A units and all public use areas are on an accessible route. 4. In other than Group R-2 dormitory housing provided by places of education, in Group R-2 facilities with Accessible units complying with Section , an accessible route is not required to connect stories or mezzanines where Accessible units, all common use areas serving Accessible units and all public use areas are on an accessible route. 5. In Group R-1, an accessible route is not required to connect stories or mezzanines within individual units, provided the accessible level meets the provisions for Accessible units and sleeping accommodations for two persons minimum and a toilet facility are provided on that level. 6. In congregate residences in Groups R-3 and R-4, an accessible route is not required to connect stories or mezzanines where Accessible units or Type B units, all common use areas serving Accessible units and Type B units and all public use areas serving Accessible units and Type B units are on an accessible route. 7. An accessible route between stories is not required where Type B units are exempted by Section IBC , Accessible Spaces and Routes

(Modification) 2015 CODE: Group I-1. Accessible units and Type B units shall be provided in Group I-1 occupancies in accordance with Sections and Accessible Units. In Group I-1 Condition 1, at least 4 percent, but not less than one, of the dwelling units and sleeping units shall be Accessible units. In Group I-1 Condition 2, at least 10 percent, but not less than one, of the dwelling units and sleeping units shall be Accessible units Group R-4. Accessible units and Type B units shall be provided in Group R-4 occupancies in accordance with Sections and Accessible Units. In Group R-4 Condition 1, at least one of the dwelling units or sleeping units shall be an Accessible unit. In Group R-4 Condition 2, at least two of the dwelling units or sleeping units shall be an Accessible unit. Bedrooms within Group R-4 facilities shall be counted as sleeping units for the purpose of determining the number of units. IBC , Accessible Units in Assisted Living Facilities

(Modification) 2015 CODE: Accessible Units. Accessible dwelling units and sleeping units shall be provided in accordance with Table Where buildings contain more than 50 dwelling units or sleeping units, the number of Accessible units shall be determined per building. Where buildings contain 50 or fewer dwelling units or sleeping units, all dwelling units and sleeping units on a site shall be considered to determine the total number of Accessible units. Accessible units shall be dispersed among the various classes of units. Roll-in showers provided in Accessible units shall include a permanently mounted folding shower seat. IBC Group-R Accessible Units

(Modification) 2015 CODE: Toilet and Bathing Facilities. Each toilet room and bathing room shall be accessible. Where a floor level is not required to be connected by an accessible route, the only toilet rooms or bathing rooms provided within the facility shall not be located on the inaccessible floor. Except as provided for in Sections and , at least one of each type of fixture, element, control or dispenser in each accessible toilet room and bathing room shall be accessible. Exceptions: 1. In Toilet rooms or bathing rooms accessed only through a private office, not for common or public use and intended for use by a single occupant, any of the following alternatives are allowed: shall be permitted to comply with the specific exceptions in ICC A through 1.4 (DELETED) 2. This section is not applicable to toilet and bathing rooms that serve dwelling units or sleeping units that are not required to be accessible by Section Where multiple single-user toilet rooms or bathing rooms are clustered at a single location, at least 50 percent but not less than one room for each use at each cluster shall be accessible. 4. Where no more than one urinal is provided in a toilet room or bathing room, the urinal is not required to be accessible. 5. Toilet rooms or bathing rooms that are part of critical care or intensive care patient sleeping rooms serving Accessible units are not required to be accessible. 6. Toilet rooms or bathing rooms designed for bariatric patients are not required to comply with the toilet room and bathing room requirement in ICC A The sleeping units served by bariatric toilet or bathing rooms shall not count toward the required number of Accessible sleeping units Where toilet facilities are primarily for children’s use, required accessible water closets, toilet compartments and lavatories shall be permitted to comply with children’s provision of ICC A IBC Accessible Water Closet Compartments

Water Closet Compartment. Where water closet compartments are provided in a toilet room or bathing room, at least one 5 percent of the total number of compartments shall be wheelchair-accessible compartment shall be provided. Where the combined total water closet compartments and urinals provided in a toilet room or bathing room is six or more, at least one 5 percent of the total number of compartments shall be ambulatory-accessible water closet compartment shall be provided in addition to the wheelchair- accessible compartment.

(Modification) 2015 CODE: Lavatories. Where lavatories are provided, at least 5 percent, but not less than one, shall be accessible. Where an accessible lavatory is located within the accessible water closet compartment at least one additional accessible lavatory shall be provided in the multi- compartment toilet room outside the water closet compartment. Where the total lavatories provided in a toilet room or bathing facility is six or more, at least one lavatory with enhanced reach ranges shall be provided. IBC Accessible Lavatories

(Modification) SECTION 1110 RECREATIONAL FACILITIES General Recreational and Sports Facilities. Recreational and sports facilities shall be provided with accessible features in accordance with Sections through Facilities Serving Group R-2, R-3 and R-4 Occupancies. Recreational facilities that serve Group R-2, R-3 and Group R-4 occupancies shall comply with Sections through as applicable Other Occupancies. All Recreational facilities not falling within the purview of Section or shall be accessible Recreational and Sports Facilities Exceptions. Recreational and sports facilities shall be required to be accessible shall be exempt from this chapter to and shall be on an accessible route to the extent specified in this section Area of Sport Activity. Each area of sport activity shall be on an accessible route and shall not be required to be accessible except as provided for in Sections through Team or Player Seating Bowling Lanes Court Sports Raised Boxing or Wrestling Rings Raised Refereeing, Judging and Scoring Areas Animal Containment Areas Amusement Rides Recreational Boating Facilities Exercise Machines and Equipment Fishing Piers and Platforms Miniature Golf Facilities Swimming Pools, Wading Pools, Hot Tubs and Spas Shooting Facilities with Firing Positions. IBC 1110 Recreational Facilities

Building Envelope, Structural Systems, and Construction Materials Chapters 12 through 26

Chapter 12 NO CHANGES Chapter 13 NO CHANGES Vapor Retarders Chapter 15 NO CHANGES Definitions and Notations 1603 Construction Documents Flood Design Data Special Loads Serviceability Risk Category Partition Loads Impact Loads for Façade Access Equipment Alternative Uniform Live Load Reduction Roof Loads Photovoltaic Panel Systems Determination of Wind Loads Mapped Acceleration Parameters Amendments to ASCE Ballasted Photovoltaic Panel Systems

Submittals to the Building Official Steel Construction Open Web Steel Joists and Joist Girders TABLE Required Special Inspections of Concrete Construction Special Inspection for Wind Resistance Special Inspection for Seismic Resistance Static Load Testing Exterior Window and Door Assemblies 1711 Material and Test Standards Investigated Conditions Excavation Near Foundations Design Surcharge Loads Group Effects Design and Detailing Anchoring to Concrete Composite Structural Steel and Concrete Structures 1904 Durability Requirements Modifications to ACI 318, Section Modifications to ACI 318, Section Chapters 12 through 26 (cont.)

Chapter 20 NO CHANGES Masonry Design Methods 2103 Masonry Construction Materials 2104 Masonry Construction 2105 Quality Assurance 2111, 2113 Masonry Fireplaces and Chimneys 2210 Cold-Formed Steel 2211 Cold-Formed Steel Light-Frame Construction Structural Glued Cross-Laminated Timber Engineered Wood Rim Board Exterior Wall Sheathing Load Path Protection Against Decay and Termites 2308 Conventional Light-Frame Construction Allowable Roof Span Roof and Ceiling Framing 2309 Wood Frame Construction Manual Safety Glazing Adjacent to Bottom Stair Landing Chapter 25 Gypsum Panel Products 2612 Plastic Composites Chapters 12 through 26 (cont.)

(Modification) 2015 CODE: Vapor retarders. Vapor retarders as described in Section shall be provided in accordance with Sections and , or an approved design using accepted engineering practice for hygrothermal analysis Class I and II Vapor retarders. Class I and II vapor retarders shall not be provided on the interior side of frame walls in Zones 1 and 2. Class I vapor retarders shall not be provided on the interior side of frame walls in Zones 3 and 4. Class I or II vapor retarders shall be provided on the interior side of frame walls in Zones 5, 6, 7, 8 and Marine 4. The appropriate zone shall be selected in accordance with Chapter 3 of the International Energy Conservation Code. Exceptions: 1. Basement walls. 2. Below-grade portion of any wall. 3. Construction where moisture or its freezing will not damage the materials. 4. Conditions where Class III vapor retarders are required in Section Class III Vapor retarders. Class III vapor retarder shall be permitted where any one of the conditions in Table is met. Only Class III vapor retarders shall be used on the interior side of frame walls where foam plastic insulating sheathing with perm rating of less than 1 is applied in accordance with Table on the exterior side of the frame wall. TABLE Class III Vapor Retarders (No changes to Table or footnote.) Material Vapor retarder Class. The vapor retarder class shall be based on the manufacturer’s certified testing or a tested assembly. The following shall be deemed to meet the class specified: Class I: Sheet polyethylene, non perforated aluminum foil with a perm rating of less than or equal to 0.1. Class II: Kraft-faced fiberglass batts or paint with a perm rating greater than 0.1 and less than or equal to 1.0. Class III: Latex or enamel paint with a perm rating of greater than 1.0 and less than or equal to IBC Vapor Retarders

(Modification) SECTION 202 DEFINITIONS DIAPHRAGM. A horizontal or sloped system acting to transmit lateral forces to the vertical-resisting elements of the lateral force-resisting system. When the term “diaphragm” is used, it shall include horizontal bracing systems. DIAPHRAGM, FLEXIBLE. A diaphragm is flexible for the purpose of distribution of story shear and torsional moment where so indicated in Section of ASCE 7. DIAPHRAGM, RIGID. A diaphragm is rigid for the purpose of distribution of story shear and torsional moment when the lateral deformation of the diaphragm is less than or equal to two times the average story drift. SECTION 1602 DEFINITIONS and NOTATIONS Definitions. The following terms are defined in Chapter 2: DIAPHRAGM. Diaphragm, Blocked. Diaphragm Boundary. Diaphragm Chord. Diaphragm, Flexible. Diaphragm, rigid. Diaphragm, Unblocked. (Portions of text not shown remain unchanged.) IBC Definitions and Notations

(Modification) 2015 CODE: Roof Snow Load Data. The ground snow load, Pg, shall be indicated. In areas where the ground snow load, Pg, exceeds 10 pounds per square foot (psf) (0.479 kN/m2), the following additional information shall also be provided, regardless of whether snow loads govern the design of the roof: 1. Flat-roof snow load, Pf. 2. Snow exposure factor, Ce. 3. Snow load importance factor, I. 4. Thermal factor, Ct. 5. Drift surcharge loads, pd, where the sum of pd and Pf exceeds 20 psf (0.96 kN/m2). 6. Width of snow drift(s), w. IBC 1603 Construction Documents

(Clarification) 2015 CODE: Flood Design Data. For buildings located in whole or in part in flood hazard areas as established in Section , the documentation pertaining to design, if required in Section , shall be included and the following information, referenced to the datum on the community’s Flood Insurance Rate Map (FIRM), shall be shown, regardless of whether flood loads govern the design of the building: 1. Flood design class assigned according to ASCE In flood hazard areas not subject to high-velocity wave action other than coastal high hazard areas or coastal A zones, the elevation of the proposed lowest floor, including the basement. 23. In flood hazard areas not subject to high-velocity wave action other than coastal high hazard areas or coastal A zones, the elevation to which any nonresidential building will be dry flood proofed. 34. In flood hazard areas subject to high-velocity wave action coastal high hazard areas and coastal A zones, the proposed elevation of the bottom of the lowest horizontal structural member of the lowest floor, including the basement. IBC Flood Design Data

(Addition) 2015 CODE: Special loads. Special loads that are applicable to the design of the building, structure or portions thereof shall be indicated along with the specified section of this code that addresses the special loading condition Photovoltaic Panel Systems. The dead load of rooftop- mounted photovoltaic panel systems, including rack support systems, shall be indicated on the construction documents. IBC Special Loads

(Modification) 2015 CODE: Serviceability. Structural systems and members thereof shall be designed to have adequate stiffness to limit deflections and lateral drift. See Section of ASCE 7 for drift limits applicable to earthquake loading Deflections. The deflections of structural members shall not exceed the more restrictive of the limitations of Sections through or that permitted by Table Reinforced Concrete. The deflection of reinforced concrete structural members shall not exceed that permitted by ACI Steel. The deflection of steel structural members shall not exceed that permitted by AISC 360, AISI S100, ASCE 8, SJI CJ-1.0, SJI JG-1.1, SJI K-1.1 or SJI LH/DLH-1.1, as applicable. IBC Serviceability

b. Interior partitions not exceeding 6ft in height and Flexible, folding and portable partitions are not governed by the provisions of this section. The deflection criterion for interior partitions is based on the horizontal load defined in Section d. For wood structural members having a moisture content of less than 16 percent at time of installation and used under dry conditions, the deflection resulting from L 1 0.5D is permitted to be substituted for the deflection resulting from L 1 D. d. The deflection limit for the D1L load combination only applies to the deflection due to the creep component of long-term dead load deflection plus the short-term live load deflection. For wood structural members that are dry at time of installation and used under dry conditions in accordance with the AWC NDS, the creep component of the long-term deflection shall be permitted to be estimated as the immediate dead load deflection resulting from 0.5D. For wood structural members at all other moisture conditions, the creep component of the long-term deflection is permitted to be estimated as the immediate dead load deflection resulting from D. The value of 0.5D shall not be used in combination with AWC NDS provisions for long-term loading. f. The wind load is permitted to be taken as 0.42 times the “component and cladding” loads for the purpose of determining deflection limits herein. Where members support glass in accordance with Section 2403 using the deflection limit therein, the wind load shall be no less than 0.6 times the “component and cladding” loads for the purpose of determining deflection. IBC Serviceability

(Clarification) 2015 CODE: Risk Category. Each building and structure shall be assigned a risk category in accordance with Table Where a referenced standard specifies an occupancy category, the risk category shall not be taken as lower than the occupancy category specified therein. Where a referenced standard specifies that the assignment of a risk category be in accordance with ASCE 7, Table 1.5-1, Table shall be used in lieu of ASCE 7, Table IBC Risk Category

(Modification) 2015 CODE: Partition Loads. In office buildings and in other buildings where partition locations are subject to change, provisions for partition weight shall be made, whether or not partitions are shown on the construction documents, unless the specified live load exceeds is 80 psf (3.83 kN/m2) or greater. The partition load shall not be less than a uniformly distributed live load of 15 psf (0.72 kN/m2). IBC Partition Loads

(Addition) 2015 CODE: Elements Supporting Hoists for Façade Access Equipment. In addition to any other applicable live loads, structural elements that support hoists for façade access equipment shall be designed for a live load consisting of the larger of the rated load of the hoist times 2.5 and the stall load of the hoist Lifeline Anchorages for Façade Access Equipment. In addition to any other applicable live loads, lifeline anchorages and structural elements that support lifeline anchorages shall be designed for a live load of at least 3100 pounds (13.8 kN) for each attached lifeline, in every direction that a fall arrest load may be applied. IBC Impact Loads for Façade Access Equipment

(Modification) 2015 CODE: Alternative Uniform Live Load Reduction. As an alternative to Section and subject to the limitations of Table , uniformly distributed live loads are permitted to be reduced in accordance with the following provisions. Such reductions shall apply to slab systems, beams, girders, columns, piers, walls and foundations. 3. For live loads not exceeding 100 psf (4.79 kN/m2), the design live load for any structural member supporting 150 square feet (13.94 m2) or more is permitted to be reduced in accordance with Equation R (A – 150) (Equation 16-24) For SI: R (A – 13.94) Such reduction shall not exceed the smallest of: percent for horizontal members supporting one floor; percent for vertical members supporting two or more floors; or 3. R as determined by the following equation. R (1 1 D/Lo) (Equation 16-25) where: A = Area of floor supported by the member, square feet (m2). D = Dead load per square foot (m2) of area supported. Lo = Unreduced live load per square foot (m2) of area supported. R = Reduction in percent. IBC Alternative Uniform Live Load Reduction

(Addition) SECTION 202 DEFINITIONS VEGETATIVE ROOF. An assembly of interacting components designed to waterproof and normally insulate a building’s top surface that includes, by design, vegetation and related landscape elements Occupiable Roofs. Areas of roofs that are occupiable, such as vegetative roofs, roof gardens or for assembly or other similar purposes, and marquees are permitted to have their uniformly distributed live loads reduced in accordance with Section Vegetative and Landscaped Roofs. The uniform design live load in unoccupied landscaped areas on roofs shall be 20 psf (0.958 kN/m2). The weight of all landscaping materials shall be considered as dead load and shall be computed on the basis of saturation of the soil as determined in accordance with ASTM E The uniform design live load in unoccupied landscaped areas on roofs shall be 20 psf (0.958 kN/m2). The uniform design live load for occupied landscaped areas on roofs shall be determined in accordance with Table IBC Roof Loads

(Addition) 2015 CODE: Photovoltaic Panel Systems. Roof structures that provide support for photovoltaic panel systems shall be designed in accordance with Sections through , as applicable Roof Live Load. Roof surfaces to be covered by solar photovoltaic panels or modules shall be designed for the roof live load, Lr, assuming that the photovoltaic panels or module are not present. The roof photovoltaic live load in areas covered by solar photovoltaic panels or modules shall be in addition to the panel loading unless the area covered by each solar photovoltaic panel or module is inaccessible. Areas where the clear space between the panels and the rooftop is 24 inches (610 mm) or less shall be considered inaccessible. Roof surfaces not covered by photovoltaic panels shall be designed for the roof live load Photovoltaic Panels or Modules. The structure of a roof that supports solar photovoltaic panels or modules shall be designed to accommodate the full solar photovoltaic panels or modules and ballast dead load, including concentrated loads from support frames in combination with the loads from Section and other applicable loads. Where applicable, snow drift loads created by the photovoltaic panels or modules shall be included Photovoltaic Panels or Modules Installed as an Independent Structure. Solar photovoltaic panels or modules that are independent structures and do not have accessible/occupied space underneath are not required to accommodate a roof photovoltaic live load, provided the area under the structure is restricted to keep the public away. All other loads and combinations per Section 1605 shall be accommodated. Solar photovoltaic panels or modules that are designed to be the roof, and span to structural supports, and have accessible/occupied space underneath shall have the panels or modules and all supporting structure designed to support a roof photovoltaic live load, as defined in Section in combination with other applicable loads. Solar photovoltaic panels or modules in this application are not permitted to be classified as “not accessible” per Section Ballasted Photovoltaic Panel Systems. Roof structures that provide support for ballasted photovoltaic panel systems shall be designed, or analyzed, in accordance with Section ; checked in accordance with Section for deflections; and checked in accordance with Section 1611 for ponding. IBC Photovoltaic Panel Systems

(Modification) 2015 CODE: Determination of Wind loads. Wind loads on every building or structure shall be determined in accordance with Chapters 26 to 30 of ASCE 7 or provisions of the alternate all-heights method in Section The type of opening protection required, the ultimate design wind speed, Vult, and the exposure category for a site is permitted to be determined in accordance with Section 1609 or ASCE 7. Wind shall be assumed to come from any horizontal direction and wind pressures shall be assumed to act normal to the surface considered. Exceptions: (No changes to Exceptions 1 through 5.) 6. Wind tunnel tests in accordance with Chapter 31 of ASCE 7 ASCE 49 and with Sections 31.4 and 31.5 of ASCE 7. The wind speeds in Figures (1), (2) and (3) are ultimate design wind speeds, Vult, and shall be converted in accordance with Section to nominal design wind speeds, Vasd, when the provisions of the standards referenced in Exceptions 1 through 5 4 and 5 are used. IBC Determination of Wind Loads

(Addition) 2015 CODE: Mapped Acceleration Parameters. The parameters SS and S1 shall be determined from the 0.2- and 1- second spectral response accelerations shown on Figures (1) through (68). Where S1 is less than or equal to 0.04 and SS is less than or equal to 0.15, the structure is permitted to be assigned Seismic Design Category A. The parameters Ss and S1 shall be, respectively, 1.5 and 0.6 for Guam and 1.0 and 0.4 for American Samoa. IBC Mapped Acceleration Parameters

(Addition) 2015 CODE: Amendments to ASCE 7. The provisions of Section shall be permitted as an amendment to the relevant provisions of ASCE Transfer of Anchorage Forces into Diaphragm. Modify ASCE 7 Section as follows: Transfer of Anchorage Forces into Diaphragm. Diaphragms shall be provided with continuous ties or struts between diaphragm chords to distribute these anchorages forces into the diaphragms. Diaphragm connections shall be positive, mechanical or welded. Added chords are permitted to be used to form sub-diaphragms to transmit the anchorage forces to the main continuous cross- ties. The maximum length-to-width ratio of a wood, wood structural panel or un- topped steel deck sheathed structural sub-diaphragm that serves as part of the continuous tie system shall be 2.5 to 1. Connections and anchorages capable of resisting the prescribed forces shall be provided between the diaphragm and the attached components. Connections shall extend into the diaphragm a sufficient distance to develop the force transferred into the diaphragm. IBC Amendments to ASCE 7

(Addition) 2015 CODE: Ballasted Photovoltaic Panel Systems. Ballasted, roof-mounted photovoltaic panel systems need not be rigidly attached to the roof or supporting structure. Ballasted non- penetrating systems shall be design and installed only on roofs with slopes not more than one unit vertical in 12 units horizontal. Ballasted non-penetrating systems shall be designed to resist sliding and uplift resulting from lateral and vertical forces as required by Section 1605, using a coefficient of friction determined by acceptable engineering principles. In structures assigned to Seismic Design Category C, D, E or F, ballasted non- penetrating the systems shall be designed to accommodate seismic displacement determined by nonlinear response-history analysis or shake-table testing, using input motions consistent with ASCE 7 lateral and vertical seismic forces for non-structural components on roofs. IBC Ballasted Photovoltaic Panel Systems

(Addition) 2015 CODE: Submittals to the Building Official. In addition to the submittal of reports of special inspections and tests in accordance with Section , reports and certificates shall be submitted by the owner or the owner’s authorized agent to the building official for each of the following: 1. Certificates of compliance for the fabrication of structural, loadbearing or lateral load- resisting members or assemblies on the premises of a registered and approved fabricator in accordance with Section ; 2. Certificates of compliance for the seismic qualification of nonstructural components, supports and attachments in accordance with Section ; 3. Certificates of compliance for designated seismic systems in accordance with Section ; 4. Reports of preconstruction tests for shotcrete in accordance with Section ; 5. Certificates of compliance for open web steel joists and joist girders in accordance with Section ; 6. Reports of material properties verifying compliance with the requirements of AWS D1.4 for weldability as specified in Section of ACI 318 for reinforcing bars in concrete complying with a standard other than ASTM A 706 that are to be welded; and 7. Reports of mill tests in accordance with Section of ACI 318 for reinforcing bars complying with ASTM A 615 and used to resist earthquake-induced flexural or axial forces in the special moment frames, special structural walls, or coupling beams connecting special structural walls, of seismic force-resisting systems in structures assigned to Seismic Design Category B, C, D, E or F. IBC Submittals to the Building Official

(Modification) 2015 CODE: Steel Construction. The special inspections for and nondestructive testing of steel elements of construction in buildings, and structures, and portions thereof shall be as required in accordance with this section. Exception: (NO CHANGE) Structural Steel. Special inspections and nondestructive testing for structural steel of structural steel elements in buildings, structures and portions thereof shall be in accordance with the quality assurance inspection requirements of AISC 360. Exception: Special inspection of railing systems composed of structural steel elements shall be limited to welding inspection of welds at the base of cantilevered rail posts Cold-Formed Steel Construction Other Than Structural Steel Deck. Special inspections for steel construction other than structural steel shall be in accordance with Table and this section. and qualification of welding special inspectors for cold-formed steel floor and roof deck shall be in accordance with the quality assurance inspection requirements of SDI QA/QC Welding. Welding inspection and welding inspector qualification shall be in accordance with this section Cold-Formed Steel. Welding inspection and welding inspector qualification for coldformed steel floor and roof decks shall be in accordance with AWS D Open Web Steel Joists and Joist Girders. Special inspections of open web steel joists and joist girders in buildings, structures and portions thereof shall be in accordance with Table Cold-Formed Steel Trusses Spanning 60 Feet or Greater. Where a cold-formed steel truss clear span is 60 feet ( mm) or greater, the special inspector shall verify that the temporary installation restraint/bracing and the permanent individual truss member restraint/bracing are installed in accordance with the approved truss submittal package. IBC Steel Construction

(Addition) 2015 CODE: Open-Web Steel Joists and Joist Girders. Special inspections of open web steel joists and joist girders in buildings, structures and portions thereof shall be in accordance with Table IBC Open Web Steel Joists and Joist Girders

IBC Table Required Special Inspections of Concrete Construction (Modification) 2015 CODE: Concrete Construction. Special inspections and verifications for tests of concrete construction shall be as required by performed in accordance with this section and Table

(Clarification) 2015 CODE: Special Inspections for Wind resistance. Special inspections itemized for wind resistance specified in Sections through , unless exemptedby the exceptions to Section , are required for buildings and structures constructed in the following areas: 1. In wind Exposure Category B, where Vasd as determined in accordance with Section is 120 miles per hour (52.8 m/sec) or greater. 2. In wind Exposure Category C or D, where Vasd as determined in accordance with Section is 110 mph (49 m/sec) or greater Structural Wood. Continuous special inspectionis required during field gluing operations of elements of the main wind-force-resisting system. Periodic special inspection is required for nailing, bolting, anchoring and other fastening of components within elements of the main wind-force-resisting system, including wood shear walls, wood diaphragms, drag struts, braces and hold-downs. Exception: Special inspections is are not required for wood shear walls, shear panels and diaphragms, including nailing, bolting, anchoring and other fastening to other components elements of the main wind-force-resisting system, where the fastener spacing of the sheathing is more than 4 inches (102 mm) on center. IBC Special Inspection for Wind Resistance

Cold-Formed Steel light-Frame Construction. Periodic special inspection is required during for welding operations of elements of the main wind- force-resisting system. Periodic special inspection is required for screw attachment, bolting, anchoring and other fastening of components within elements of the main wind-force- resisting system, including shear walls, braces, diaphragms, collectors (drag struts) and hold-downs. Exception: Special inspections is are not required for cold-formed steel light-frame shear walls, braces, and diaphragms, collectors (drag struts) and hold downs, including screwing, bolting, anchoring and other fastening to components of the wind-force resisting system where either of the following apply: 1. The sheathing is gypsum board or fiberboard. 2. The sheathing is wood structural panel or steel sheets on only one side of the shear wall, shear panel or diaphragm assembly and the fastener spacing of the sheathing is more than 4 inches (102 mm) on center (o.c.) Wind-resisting Components. Periodic special inspection is required for fastening of the following systems and components: 1. Roof cladding covering, roof deck, and roof framing connections. 2. Wall cladding Exterior wall covering, and wall connections to roof and floor diaphragms and framing. IBC Special Inspection for Wind Resistance

(Addition) 2015 CODE: Special Inspections for Seismic Resistance. Special inspections itemized for seismic resistance shall be required as specified in Sections through , unless exempted by the exceptions of Section are required for the following: 1. The seismic force-resisting systems in structures assigned to Seismic Design Category C, D, E or F in accordance with Sections through , as applicable. 2. Designated seismic systems in structures assigned to Seismic Design Category C, D, E or F in accordance with Section Architectural, mechanical and electrical components in accordance with Sections and Storage racks in structures assigned to Seismic Design Category D, E or F in accordance with Section Seismic isolation systems in accordance with Section Exception: The special inspections itemized specified in Sections through are not required for structures designed and constructed in accordance with one of the following: 1. The structure consists of light-frame construction; the design spectral response acceleration at short periods, SDS, as determined in Section , does not exceed 0.5; and the building height of the structure does not exceed 35 feet ( mm). 2. The seismic force-resisting system of the structure consists of reinforced masonry or reinforced concrete; the design spectral response acceleration at short periods, SDS, as determined in Section , does not exceed 0.5; and the building height of the structure does not exceed 25 feet (7620 mm). 3. The structure is a detached one- or two-family dwelling not exceeding two stories above grade plane and does not have any of the following horizontal or vertical irregularities in accordance with Section 12.3 of ASCE 7: 3.1. Torsional or extreme torsional irregularity Nonparallel systems irregularity Stiffness-soft story or stiffness-extreme soft story irregularity Discontinuity in lateral strength-weak story irregularity. IBC Special Inspection for Seismic Resistance

Structural Steel. Special inspections for seismic resistance shall be in accordance with Section or , as applicable Seismic Force-resisting Systems. Special inspections for structural steel of structural steel in the seismic-force resisting systems of buildings and structures assigned to Seismic Design Category B, C. D, E or F shall be performed in accordance with the quality assurance requirements of AISC 341. Exception: Special inspections of structural steel are not required in the seismic force- resisting systems of buildings and structures assigned to Seismic Design Category B or C that are not specifically detailed for seismic resistance, with a response modification coefficient, R, of 3 or less, excluding cantilever column systems Structural Steel Elements. Special inspections of structural steel elements in the seismic force-resisting systems of buildings and structures assigned to Seismic Design Category B, C, D, E or F other than those covered in Section , including struts, collectors, chords and foundation elements, shall be performed in accordance with the quality assurance requirements of AISC 341. Exception: Special inspections of structural steel elements are not required in the seismic force-resisting systems of buildings and structures assigned to Seismic Design Category B or C with a response modification coefficient, R, of 3 or less. IBC Special Inspection for Seismic Resistance

Structural Wood. For the seismic force- resisting systems of structures assigned to Seismic Design Category C, D, E or F: 1. Continuous special inspection shall be required during field gluing operations of elements of the seismic force- resisting system. 2. Periodic special inspection shall be required for nailing, bolting, anchoring and other fastening of components within elements of the seismic force-resisting system, including wood shear walls, wood diaphragms, drag struts, braces, shear panels and hold-downs. Exception: Special inspections are not required for wood shear walls, shear panels and diaphragms, including nailing, bolting, anchoring and other fastening to other components elements of the seismic force-resisting system, where the fastener spacing of the sheathing is more than 4 inches (102 mm) on center (o.c.) Cold-Formed Steel light-Frame Construction. For the seismic force-resisting systems of structures assigned to Seismic Design Category C, D, E or F, periodic special inspection shall be required: 1. Periodic special inspection is required For welding operations of elements of the seismic force-resisting system; and 2. Periodic special inspection is required For screw attachment, bolting, anchoring and other fastening of components within elements of the seismic force-resisting system, including shear walls, braces, diaphragms, collectors (drag struts) and hold-downs. Exception: Special inspections is are not required for cold-formed steel light-frame shear walls and diaphragms, collectors (drag struts) and hold downs including screw installation, bolting, anchoring and other fastening to components of the seismic force-resisting system where either of the following applies: 1. The sheathing is gypsum board or fiberboard. 2. The sheathing is wood structural panel or steel sheets on only one side of the shear wall, shear panel or diaphragm assembly and the fastener spacing of the sheathing is more than 4 inches (102 mm) o.c. IBC Special Inspection for Seismic Resistance

Designated Seismic Systems. For structures assigned to Seismic Design Category C, D, E or F, the special inspector shall examine designated seismic systems requiring seismic qualification in accordance with Section of ASCE 7 and verify that the label, anchorage and mounting conforms to the certificate of compliance Cold-Formed Steel Special Bolted Moment Frames. Periodic special inspection shall be provided for the installation of coldformed steel special bolted moment frames in the seismic force-resisting systems of structures assigned to Seismic Design Category D, E or F. IBC Special Inspection for Seismic Resistance

(Modification) 2015 CODE: Load Test Trocedure Not Specified. In the absence of applicable load test procedures contained within a standard referenced by this code or acceptance criteria for a specific material or method of construction, such existing structure shall be subjected to a test procedure developed by a registered design professional that simulates applicable loading and deformation conditions. For components that are not a part of the seismic load-resisting system, at a minimum the test load shall be equal to two times the unfactored design loads the specified factored design loads. For materials such as wood that have strengths that are dependent on load duration, the test load shall be adjusted to account for the difference in load duration of the test compared to the expected duration of the design loads being considered. For statically loaded components, the test load shall be left in place for a period of 24 hours. For components that carry dynamic loads (e.g., machine supports or fall arrest anchors), the load shall be left in place for a period consistent with the component’s actual function. The structure shall be considered to have successfully met the test requirements where the following criteria are satisfied: 1. Under the design load, the deflection shall not exceed the limitations specified in Section Within 24 hours after removal of the test load, the structure shall have recovered not less than 75 percent of the maximum deflection. 3. During and immediately after the test, the structure shall not show evidence of failure. IBC Static Load Testing

(Modification) 2015 CODE: Exterior Window and Door Assemblies. The design pressure rating of exterior windows and doors in buildings shall be determined in accordance with Section or For the purposes of this section, the required design pressure shall be determined using the allowable stress design load combinations of Section Exception: Structural wind load design pressures for window units smaller than the size tested in accordance with Section or shall be permitted to be higher than the design value of the tested unit provided such higher pressures are determined by accepted engineering analysis. All components of the small unit shall be the same as the tested unit. Where such calculated design pressures are used, they shall be validated by an additional test of the window unit having the highest allowable design pressure. IBC Exterior Window and Door Assemblies

(Deletion) 2015 CODE: (DELETED) Concrete and Clay roof Tiles Testing. Testing of concrete and clay roof tiles shall be in accordance with Sections and , as applicable. Sections and Overturning resistance. Concrete and clay roof tiles shall be tested to determine their resistance to overturning due to wind in accordance with SBCCI SSTD 11 and Chapter Wind Tunnel Testing. Where concrete and clay roof tiles do not satisfy the limitations in Chapter 16 for rigid tile, a wind tunnel test shall be used to determine the wind characteristics of the concrete or clay tile roof covering in accordance with SBCCI SSTD 11 and Chapter 15. IBC 1711 Materials and Test Standards

(Modification) 2015 CODE: rock Strata. Where subsurface explorations at the project site indicate variations or doubtful characteristics in the structure of the rock upon which foundations are to be constructed, a sufficient number of borings shall be drilled to sufficient depths to assess the competency of the rock made to a depth of not less than 10 feet (3048 mm) below the level of the foundations to provide assurance of the soundness of the foundation bed and its load-bearing capacity Excavation Near Foundations. Where excavation will reduce remove lateral support from any foundation, an investigation shall be conducted to assess the potential consequences and address mitigation measures. a registered design professional shall prepare an assessment of the structure as determined from examination of the structure, the review of available design documents and, if necessary, the excavation of test pits. The registered design professional shall determine the requirements for underpinning and protection and prepare site- specific plans, details and sequence of work for submission. Such support may be provided by underpinning, sheeting and bracing, or by other means acceptable to the building official. IBC Investigated Conditions

(Addition) 2015 CODE: Excavation Near Foundations. Excavation for any purpose shall not remove reduce lateral support from any foundation or adjacent foundation without first underpinning or protecting the foundation against settlement or lateral translation detrimental lateral or vertical movement, or both Underpinning. Where underpinning is chosen to provide the protection or support of adjacent structures, the underpinning system shall be designed and installed in accordance with provisions of this chapter and Chapter Underpinning Sequencing. Underpinning shall be installed in a sequential manner that protects the neighboring structure and the working construction site. The sequence of installation shall be identified in the approved construction documents. IBC Excavation Near Foundations

(Addition) 2015 CODE: Surcharge. No fill or other surcharge loads shall be placed adjacent to any building or structure unless such building or structure is capable of withstanding the additional loads caused by the fill or the surcharge. Existing footings or foundations which will be affected by any excavation shall be underpinned or otherwise protected against settlement and shall be protected against detrimental lateral or vertical movement, or both. Exception: Minor grading for landscaping purposes shall be permitted where done with walk-behind equipment, where the grade is not increased more than one foot (305 mm) from original design grade, or where approved by the building official. IBC Design Surcharge Loads

(Clarification) 2015 CODE: Group Effects. The analysis shall include group effects on lateral behavior where the center-to-center spacing of deep foundation elements in the direction of lateral force is less than eight times the least horizontal dimension of an element. The analysis shall include group effects on axial behavior where the center-to-center spacing of deep foundation elements is less than three times the least horizontal dimension of an element. Group effects shall be evaluated using a generally accepted method of analysis; the analysis for uplift of grouped elements with center-to-center spacing less than three times the least horizontal dimension of an element shall be evaluated in accordance with Section IBC Group Effects

(Addition) 2015 CODE: Structural Steel. Structural steel H-piles and structural steel sheet piling shall conform to the material requirements in ASTM A 6. Steel pipe piles shall conform to the material requirements in ASTM A 252 and. Fully welded steel piles shall be fabricated from plates shall that conform to the material requirements in ASTM A 36, ASTM A 252, ASTM A 283, ASTM A 572, ASTM A 588 or ASTM A 690 ASTM A913 or ASTM A Steel. Steel deep foundation elements shall satisfy the requirements of this section Structural Steel H-Piles. Sections of structural steel H-piles shall comply with the requirements for HP shapes in ASTM A 6, or the following: 1. The flange projections shall not exceed 14 times the minimum thickness of metal in either the flange or the web and the flange widths shall not be less than 80 percent of the depth of the section. 2. The nominal depth in the direction of the web shall not be less than 8 inches (203 mm). 3. Flanges and web shall have a minimum nominal thickness of 3/8 inch (9.5 mm) Fully Welded Steel Piles Fabricated from Plates. Sections of fully welded steel piles fabricated from plates shall comply with the following: 1. The flange projections shall not exceed 14 times the minimum thickness of metal in either the flange or the web and the flange widths shall not be less than 80 percent of the depth of the section. 2. The nominal depth in the direction of the web shall not be less than 8 inches (203 mm). 3. Flanges and web shall have a minimum nominal thickness of 3/8 inch (9.5 mm) Structural Steel Sheet Piling. Individual sections of structural steel sheet piling shall conform to the profile indicated by the manufacturer, and shall conform to the general requirements specified by ASTM A 6. IBC Design and Detailing

(Modification) 2015 CODE: Anchoring to Concrete. Anchoring to concrete shall be in accordance with ACI 318 as amended in Section 1905, and applies to cast-in (headed bolts, headed studs and hooked J- or L-bolts) anchors and post-installed expansion (torque-controlled and displacement- controlled), undercut and adhesive anchors. SECTIONS 1908 and 1909 DELETED IBC Anchoring to Concrete

(Modification) 2015 CODE: Composite Structural Steel and Concrete Structures. Systems of structural steel acting compositely with reinforced concrete shall be designed in accordance with Section 2206 of this code. SECTION 1912 DELETED IBC Composite Structural Steel and Concrete Structures

SECTION 202 DEFINITIONS NONSTRUCTURAL CONCRETE. Any element made of plain or reinforced concrete that is not part of a structural system required to transfer either gravity or lateral loads to the ground. SECTION 1904 DURABILITY REQUIREMENTS Exposure Categories and Classes. Concrete shall be assigned to exposure classes in accordance with the durability requirements of ACI 318 based on: ITEMS 1. through 4. DELETED Structural Concrete. Structural concrete shall conform to the durability requirements of ACI 318. Exception: For Group R-2 and R-3 occupancies not more than three stories above grade plane, the specified compressive strength, fc, for concrete in basement walls, foundation walls, exterior walls and other vertical surfaces exposed to the weather shall be not less than 3000 psi (20.7 MPa) Concrete properties. Concrete mixtures shall conform to the most restrictive maximum water- cementitious materials ratios, maximum cementitious admixtures, minimum air-entrainment and minimum specified concrete compressive strength requirements of ACI 318 based on the exposure classes assigned in Section Exception DELETED Nonstructural Concrete. The registered design professional shall assign nonstructural concrete a freeze- thaw exposure class, as defined in ACI 318, based on the anticipated exposure of nonstructural concrete. Nonstructural concrete shall have a minimum specified compressive strength, f’c,of 2500 psi (17.2 MPa) for Class F0; 3000 psi (20.7 MPa) for Class F1; and 3500 psi (24.1 MPa) for Classes F2 and F3. Nonstructural concrete shall be air entrained in accordance with ACI 318. TABLE and FIGURE DELETED IBC 1904 Durability Requirements

(Modification) 2015 CODE: General. The text of ACI 318 shall be modified as indicated in Sections through ACI 318, Section Modify existing definitions and add the following definitions to ACI 318, Section Wall Pier. A wall segment with a horizontal length-to-thickness ratio of at least 2.5, but not exceeding 6, whose clear height is at least two times its horizontal length ACI 318, Section Modify ACI 318, Section , by adding new Section and renumbering existing Sections and to become and , respectively.and adding new Sections , , and to read as follows: Connections that are designed to yield shall be capable of maintaining 80 percent of their design strength at the deformation induced by the design displacement or shall use Type 2 mechanical splices Elements of the connection that are not designed to yield shall develop at least 1.5 Sy In structures assigned to SDC D, E or F, wall piers shall be designed in accordance with or in ACI Wall piers in Seismic Design Category D, E or F shall comply with Section of the International Building Code Wall piers not designed as part of a moment frame in buildings assigned to Seismic Design Category C shall have transverse reinforcement designed to resist the shear forces determined from Spacing of transverse reinforcement shall not exceed 8 inches (203 mm). Transverse reinforcement shall be extended beyond the pier clear height for at least 12 inches (305 mm). exceptions: 1. Wall piers that satisfy Wall piers along a wall line within a story where other shear wall segments provide lateral support to the wall piers and such segments have a total stiffness of at least six times the sum of the stiffnesses of all the wall piers Wall segments with a horizontal length-to thickness ratio less than 2.5 shall be designed as columns. SECTION DELETED IBC Modifications to ACI 318, Section 18.5

(Modification) 2015 CODE: ACI 318, Section Delete ACI 318 Sections D through D and replace with the following: Modify ACI 318 Sections , (d) and to read as follows: Where the tensile component of the strength-level earthquake force applied to anchors exceeds 20 percent of the total factored anchor tensile force associate with the same load combination, anchors and their attachments shall be designed in accordance with The anchor design tensile strength shall be determined in accordance with exception: 1. Anchors designed to resist wall out-of-plane forces with designstrengths equal to or greater than the force determined in accordance with ASCE 7 Equation or need not shall be deemed to satisfy Section D (d) (d) – The anchor or group of anchors shall be designed for the maximum tension obtained from design load combinations that include E, with E increased by Ω0. The anchor design tensile strength shall be calculated from IBC Modifications to ACI 318, Section

– Where the shear component of the strength-level earthquake force applied to anchors exceeds 20 percent of the total factored anchor shear force associated with the same load combination, anchors and their attachments shall be designed in accordance with The anchor design shear strength for resisting earthquake forces shall be determined in accordance with exceptions: 1. D need not apply and the design shear strength in accordance with D.6.2.1(c) need not be computed For the calculation of the in-plane shear strength of anchor bolts attaching wood sill plates of bearing or non- bearing walls of light-frame wood structures to foundations or foundation stem walls, the in-plane shear strength in accordance with D.6.2 and D and need not be computed and D shall be deemed to be satisfied provided all of the following are satisfied met: The allowable in-plane shear strength of the anchor is determined in accordance with AWC NDS Table 11E for lateral design values parallel to grain The maximum anchor nominal diameter is 5/8 inches (16 mm) Anchor bolts are embedded into concrete a minimum of 7 inches (178 mm) Anchor bolts are located a minimum of 1 3/4 inches (45 mm) from the edge of the concrete parallel to the length of the wood sill plate Anchor bolts are located a minimum of 15 anchor diameters from the edge of the concrete perpendicular to the length of the wood sill plate The sill plate is 2-inch or 3-inch nominal thickness. IBC Modifications to ACI 318, Section

2. Section D need not apply and the design shear strength in accordance with Section D.6.2.1(c) need not be computed For the calculation of the in-plane shear strength of anchor bolts attaching cold-formed steel track of bearing or non-bearing walls of light-frame construction to foundations or foundation stem walls, the in-plane shear strength in accordance with and need not be computed and shall be deemed to be satisfied provided all of the following are satisfied met: 2.1. The maximum anchor nominal diameter is 5/8 inches (16 mm) Anchors are embedded into concrete a minimum of 7 inches (178 mm) Anchors are located a minimum of 13/4 inches (45 mm) from the edge of the concrete parallel to the length of the track Anchors are located a minimum of 15 anchor diameters from the edge of the concrete perpendicular to the length of the track The track is 33 to 68 mil designation thickness. Allowable in-plane shear strength of exempt anchors, parallel to the edge of concrete shall be permitted to be determined in accordance with AISI S100 Section E Anchors in concrete designed to support nonstructural components in accordance with ASCE 7 Section need not satisfy Section D In light-frame construction, bearing or nonbearing walls, shear strength of concrete anchors less than or equal to 1 inch (25 mm) in diameter connecting of sill plate or track to foundation or foundation stem wall need not satisfy D (a) through (c) when the design strength of the anchors is determined in accordance with D.6.2.1(c) (c). SECTION DELETED IBC Modifications to ACI 318, Section

(Modification) 2015 CODE: Design Methods. Masonry shall comply with the provisions of one of the following design methods in this chapter TMS 402/ACI 530/ASCE 5 or TMS 403 as well as the requirements of Sections 2101 through Masonry designed by the allowable stress design provisions of Section , the strength design provisions of Section , the prestressed masonry provisions of Section , or the direct design requirements of Section shall comply with Section 2105 applicable requirements of this chapter Masonry Veneer. Masonry veneer shall comply with the provisions of Chapter 14 or Chapter 6 of TMS 402/ACI 530/ASCE Special Inspection. The special inspection of masonry shall be as defined in Chapter 17, or an itemized testing and inspection program shall be provided that meets or exceeds the requirements of Chapter Fireplace Drawings. The construction documents shall describe in sufficient detail the location, size and construction of masonry fireplaces. The thickness and characteristics of materials and the clearances from walls, partitions and ceilings shall be indicated. IBC Masonry Design Methods

(Modification) 2015 CODE: General. The following terms are defined in Chapter 2: Masonry Units. Concrete masonry units, clay or shale masonry units, stone masonry units, glass unit masonry and AAC masonry units shall comply with Article 2.3 of TMS 602/ACI 530.1/ASCE 6. Architectural cast stone shall conform to ASTM C1364. Exception: Structural clay tile for nonstructural use in fireproofing of structural members and in wall furring shall not be required to meet the compressive strength specifications. The fire-resistance rating shall be determined in accordance with ASTM E 119 or UL 263 and shall comply with the requirements of Table Second-hand Units. Second-hand masonry units shall not be reused unless they conform to the requirements of new units. The units shall be of whole, sound materials and free from cracks and other defects that will interfere with proper laying or use. Old mortar shall be cleaned from the unit before reuse Mortar. Mortar for masonry construction shall comply with Section , , or Masonry Mortar. Mortar for use in masonry construction shall conform to Articles 2.1 and 2.6 A of TMS 602/ACI 530.1/ASCE Surface-Bonding Mortar. Surface-bonding mortar shall comply with ASTM C 887. Surface bonding of concrete masonry units shall comply with ASTM C 946. IBC 2103 Masonry Construction Materials

Mortars for Ceramic Wall and Floor Tile. Portland cement mortars for installing ceramic wall and floor tile shall comply with ANSI A108.1A and ANSI A108.1B and be of the compositions indicated in Table Mortar for adhered Masonry Veneer. Mortar for use with adhered masonry veneer shall conform to ASTM C 270 for Type N or S, or shall comply with ANSI A118.4 for latex-modified Portland cement mortar Grout. Grout shall comply with Article 2.2 of TMS 602/ACI 530.1/ASCE Metal reinforcement and accessories. Metal reinforcement and accessories shall conform to Article 2.4 of TMS 602/ACI 530.1/ASCE 6. Where unidentified reinforcement is approved for use, not less than three tension and three bending tests shall be made on representative specimens of the reinforcement from each shipment and grade of reinforcing steel proposed for use in the work. TABLE CERAMIC TILE MORTAR COMPOSITIONS IBC 2103 Masonry Construction Materials

(Modification) 2015 CODE: Masonry Construction. Masonry construction shall comply with the requirements of Sections through , and with TMS 602/ACI 530.1/ASCE (DELETED) Molded Cornices. Unless structural support and anchorage are provided to resist the overturning moment, the center of gravity of projecting masonry or molded cornices shall lie within the middle one-third of the supporting wall. Terra cotta and metal cornices shall be provided with a structural frame of approved noncombustible material anchored in an approved manner – (DELETED) IBC 2104 Masonry Construction

(Modification) General. A quality assurance program shall be used to ensure that the constructed masonry is in compliance with the construction documents. The quality assurance program shall comply with the inspection and testing requirements of Chapter 17 and TMS 602/ACI 530.1/ASCE 6. IBC 2105 Quality Assurance

(Clarification) 2015 CODE: SECTION 2111 MASONRY FIREPLACES General. The construction of masonry fireplaces, consisting of concrete or masonry, shall be in accordance with this section Seismic Reinforcement. In structures assigned to Seismic Design Category A or B, seismic reinforcement and seismic anchorage are is not required. Masonry or concrete fireplaces shall be constructed, anchored, supported and reinforced as required in this chapter. In structures assigned to Seismic Design Category C or D, masonry and concrete fireplaces shall be reinforced and anchored as detailed in Sections , , and and for chimneys serving fireplaces. In structures assigned to Seismic Design Category E or F, masonry and concrete chimneys fireplaces shall be reinforced in accordance with the requirements of Sections 2101 through Seismic Anchorage. Masonry and concrete chimneys fireplaces and foundations in structures assigned to Seismic Design Category C or D shall be anchored at each floor, ceiling or roof line more than 6 feet (1829 mm) above grade, except where constructed completely within the exterior walls. Anchorage shall conform to the following requirements. shall be anchored at each floor, ceiling or roof line more than 6 feet (1829 mm) above grade with two 3/16-inch by 1-inch (4.8 mm by 25 mm) straps embedded a minimum of 12 inches (305 mm) into the chimney. Straps shall be hooked around the outer bars and extend 6 inches (152 mm) beyond the bend. Each strap shall be fastened to a minimum of four floor joists with two 1/2-inch (12.7 mm) bolts. Exception: Seismic anchorage is not required for the following; 1. In structures assigned to Seismic Design Category A or B. 2. Where the masonry fireplace is constructed completely within the exterior walls. IBC 2111, 2113 Masonry Fireplaces and Chimneys

SECTION 2113 MASONRY CHIMNEYS General. The construction of masonry chimneys consisting of solid masonry units, hollow masonry units grouted solid, stone or concrete shall be in accordance with this section Seismic Reinforcement. Masonry or concrete chimneys shall be constructed, anchored, supported and reinforced as required in this chapter. In structures assigned to Seismic Design Category A or B, seismic reinforcement is not required. In structures assigned to Seismic Design Category C or D, masonry and concrete chimneys shall be reinforced and anchored as detailed in Sections , and In structures assigned to Seismic Design Category A or B, reinforcement and Seismic anchorage is not required. In structures assigned to Seismic Design Category E or F, masonry and concrete chimneys shall be reinforced in accordance with the requirements of Sections through Seismic Anchorage. Masonry and concrete chimneys and foundations in structures assigned to Seismic Design Category C or D shall be anchored at each floor, ceiling or roof line more than 6 feet (1829 mm) above grade, except where constructed completely within the exterior walls. Anchorage shall conform to the following requirements. shall be anchored at each floor, ceiling or roof line more than 6 feet (1829 mm) above grade with two 3/16-inch by 1-inch (4.8 mm by 25 mm) straps embedded a minimum of 12 inches (305 mm) into the chimney. Straps shall be hooked around the outer bars and extend 6 inches (152 mm) beyond the bend. Each strap shall be fastened to a minimum of four floor joists with two 1/2-inch (12.7 mm) bolts. Exception: Seismic anchorage is not required for the following; 1. In structures assigned to Seismic Design Category A or B. 2. Where the masonry fireplace is constructed completely within the exterior walls. IBC 2111, 2113 Masonry Fireplaces and Chimneys

(Modification) 2015 CODE: SECTION 2210 COLD FORMED STEEL General. The design of cold-formed carbon and low-alloy steel structural members shall be in accordance with AISI S100. The design of cold-formed stainless-steel structural members shall be in accordance with ASCE 8. Cold- formed steel light-frame construction shall also comply with Section Where required, the seismic design of cold-formed steel structures shall be in accordance with the additional provisions of Section Steel Decks. The design and construction of cold-formed steel decks shall be in accordance with this section Composite Slabs on Steel Decks. Composite slabs of concrete and steel deck shall be permitted to be designed and constructed in accordance with SDI-C. CHAPTER 35 SDI. SDI-C-2011 Standard for Composite Steel Floor Deck Slabs. IBC 2210 Cold Formed Steel

(Modification) 2015 CODE: SECTION 2211 COLD FORMED STEEL LIGHT FRAMED CONSTRUCTION General. The design and installation of structural members and nonstructural members utilized in cold-formed steel light-frame construction where the specified minimum base steel thickness is between inches (0.455 mm) and not greater than inches (2.997 mm) shall be in accordance with AISI S200 and Sections through , or AISI S220, as applicable Trusses Spanning 60 Feet or Greater. The owner or the owner’s authorized agent shall contract with a registered design professional for the design of the temporary installation restraint/bracing and the permanent individual truss member restraint/bracing for trusses with clear spans 60 feet ( mm) or greater. Special inspection of trusses over 60 feet ( mm) in length shall conform to Section Structural Wall Stud Design. Structural wall studs shall be designed in accordance with either AISI S211 or AISI S100. CHAPTER 35 AISI. AISI S220—11 North American Standard for Cold-formed Steel Framing- Nonstructural Members. IBC 2211 Cold Formed Steel Light-Frame Construction

(Addition) 2015 CODE: SECTION 202 DEFINITIONS CROSS-LAMINATED TIMBBER. A prefabricated engineered wood product consisting of at least three layers of solid-sawn lumber or structural composite lumber where the adjacent layers are cross- oriented and bonded with structural adhesive to form a solid wood element Structural Glued Cross-laminated Timber. Cross-laminated timbers shall be manufactured and identified as required in ANSI/APA PRG 320. CHAPTER 35 APA. ANSI/APA PRG Standard for Performance-Rated Cross Laminated Timber. IBC Structural Glued Cross-Laminated Timber

(Addition) 2015 CODE: SECTION 202 DEFINITIONS ENGINEERED WOO RIM BOARD. A full-depth structural composite lumber, wood structural panel, structural glued laminated timber, or prefabricated wood I-joist member designed to transfer horizontal (shear) and vertical (compression) loads, provide attachment for diaphragm sheathing, siding and exterior deck ledgers, and provide lateral support at the ends of floor or roof joists or rafters Engineered Wood rim Board. Engineered wood rim boards shall conform to ANSI/APA PRR 410 or shall be evaluated in accordance with ASTM D Structural capacities shall be in accordance with ANSI/APA PRR 410 or established in accordance with ASTM D Rim boards conforming to ANSI/APA PRR 410 shall be marked in accordance with that standard. CHAPTER 35 APA. ANSI/APA PRR Standard for Performance-Rated Engineered Wood Rim Boards. ASTM. ASTM D e1 Standard Specifications for Evaluating Structural Capacities of Rim Board Products and Assemblies. IBC Engineered Wood Rim Board

(Modification) 2015 CODE: SECTION 202 DEFINITIONS GABLE. The triangular portion of the wall beneath a dual-slope, pitched, or mono-slope roof Exterior Wall Sheathing. Except as provided for in Section 1405 for weatherboarding or where stucco construction that complies with Section 2510 is installed, enclosed buildings shall be sheathed with one of the materials of the nominal thickness specified in Table or any other approved material of equivalent strength or durability Wall sheathing on the outside of exterior walls, including gables, and the connection of sheathing to framing shall be designed in accordance with the general provisions of this code and shall be capable of resisting wind pressures in accordance with Section Wood Structural panel Sheathing. Where wood structural panel sheathing is used as the exposed finish on the outside of exterior walls, it shall have an exterior exposure durability classification. Where wood structural panel sheathing is used elsewhere, but not as the exposed finish, it shall be of a type manufactured with exterior glue (Exposure 1 or Exterior). Wood structural panel wall sheathing or siding used as structural sheathing shall be capable of resisting wind pressures in accordance with Section Maximum wind speeds for wood. Wood structural panel sheathing, used to resist wind pressures connections and framing spacing shall be in accordance with Table for the applicable wind speed and exposure category when used with enclosed buildings with a mean roof height not greater than 30 feet (9144 mm) and a topographic factor (Kz t) of 1.0. IBC Exterior Wall Sheathing

(Modification) 2015 CODE: Load Path. Where wall framing members are not continuous from foundation sill to roof, the members shall be secured to ensure a continuous load path. Where required, sheet metal clamps, ties or clips shall be formed of galvanized steel or other approved corrosion-resistant material not less than inch ( mm) base metal inch (1.01 mm) nominal thickness. IBC Load Path

(Modification) 2015 CODE: protection against Decay and Termites. Wood shall be protected from decay and termites in accordance with the applicable provisions of Sections through General. Where required by this section, protection from decay and termites shall be provided by the use of naturally durable or preservative-treated wood Wood Used above Ground locations requiring Water-Borne preservatives or Naturally Durable Wood. Wood used above ground in the locations specified in Sections through , and shall be naturally durable wood or preservative- treated wood using water-borne preservatives, in accordance with AWPA U1 (Commodity Specifications A or F) for above-ground use Joists, Girders and Subfloor. Where wood joists or the bottom of a wood structural floor without joists are closer than 18 inches (457 mm), or wood girders are closer than 12 inches (305 mm) to the exposed ground in crawl spaces or unexcavated areas located within the perimeter of the building foundation, the floor construction (including posts, girders, joists and subfloor) shall be of naturally durable or preservative-treated wood Wood Supported by Exterior Foundation Walls. Wood framing members, including wood sheathing, that rest on are in contact with exterior foundation walls and are less than 8 inches (203 mm) from exposed earth shall be of naturally durable or preservative-treated wood. IBC Protection Against Decay and Termites

Exterior Walls Below Grade. Wood framing members and furring strips attached directly to in direct contact with the interior of exterior masonry or concrete walls below grade shall be of naturally durable or preservative-treated wood Other locations. Wood used in the locations specified in Sections through shall be naturally durable wood or preservative treated wood in accordance with AWPA U1. Preservative treated wood used in interior locations shall be protected with two coats of urethane, shellac, latex epoxy or varnish unless waterborne preservatives are used. Prior to application of the protective finish, the wood shall be dried in accordance with the manufacturer’s recommendations Posts or Columns. Posts or columns supporting permanent structures and supported by a concrete or masonry slab or footing that is in direct contact with the earth shall be of naturally durable or preservative-treated wood. Exceptions: 1. Posts or columns that are either not exposed to the weather or located in basements or cellars, are supported by concrete piers or metal pedestals projected at least 1 inch (25 mm) above the slab or deck and 6 8 inches (152 mm) above exposed earth, and are separated therefrom by an impervious moisture barrier. 2. Posts or columns in enclosed crawl spaces or unexcavated areas located within the periphery of the building, supported by a concrete pier or metal pedestal at a height greater than 8 inches (203 mm) from exposed ground, and are separated there from by an impervious moisture barrier Supporting Members for permeable Floors and Roofs. Wood structural members that support moisture-permeable floors or roofs that are exposed to the weather, such as concrete or masonry slabs, shall be of naturally durable or preservative-treated wood unless separated from such floors or roofs by an impervious moisture barrier. IBC Protection Against Decay and Termites

Wood in Contact with the Ground or Fresh Water. Wood used in contact with the ground (exposed earth) in the locations specified in Sections and shall be naturally durable (species for both decay and termite resistance) or preservative treated using water-borne preservatives in accordance with AWPA U1 (Commodity Specifications A or F) for soil or fresh water use. Exception: Untreated wood is permitted where such wood is continuously and entirely below the groundwater level or submerged in fresh water Posts or Columns. Posts and columns supporting permanent structures that are embedded in concrete that is in direct contact with the earth, embedded in concrete that is exposed to the weather or in direct contact with the earth shall be of preservative-treated wood Wood Structural Members. Wood structural members that support moisture-permeable floors or roofs that are exposed to the weather, such as concrete or masonry slabs, shall be of naturally durable or preservative-treated wood unless separated from such floors or roofs by an impervious moisture barrier Wood Used in retaining Walls and Cribs. Wood installed in retaining or crib walls shall be preservative treated in accordance with AWPA U1 (Commodity Specifications A or F) for soil and fresh water use. IBC Protection Against Decay and Termites

(Modification) 2015 CODE: SECTION 2308 CONVENTIONAL LIGHT FRAMED CONSTRUCTION General. The requirements of this section are intended for conventional light-frame construction. Other construction methods are permitted to be used, provided a satisfactory design is submitted showing compliance with other provisions of this code. Interior non-load-bearing partitions, ceilings and curtain walls of conventional light-frame construction are not subject to the limitations of Section Detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories above grade plane in height with a separate means of egress and their accessory structures shall comply with the International Residential Code Portions Exceeding Limitations of Conventional LightFrame Construction. When portions of a building of otherwise conventional light-frame construction exceed the limits of Section , those portions and the supporting load path shall be designed in accordance with accepted engineering practice and the provisions of this code. For the purposes of this section, the term “portions” shall mean parts of buildings containing volume and area such as a room or a series of rooms. The extent of such design need only demonstrate compliance of the non-conventionally light-framed elements with other applicable provisions of this code and shall be compatible with the performance of the conventional light-framed system Connections and Fasteners. Connectors and fasteners used in conventional construction shall comply with the requirements of Section Limitations. Buildings are permitted to be constructed in accordance with the provisions of conventional light-frame construction, subject to the limitations in Sections through IBC 2308 Conventional Light-Frame Construction

Stories. Structures of conventional light- frame construction shall be limited in story height according to Table IBC 2308 Conventional Light-Frame Construction

Allowable Floor-to-Floor height. Maximum floor-to-floor height shall not exceed 11 feet, 7 inches (3531 mm). Exterior bearing wall and interior braced wall heights shall not exceed a stud height of 10 feet (3048 mm) Allowable Loads. Loads shall be in accordance with Chapter 16 and shall not exceed the following: 1. Average dead loads shall not exceed 15 psf (718 N/m2) for combined roof and ceiling, exterior walls, floors and partitions. Exceptions: 1. Subject to the limitations of Section , stone or masonry veneer up to the lesser of 5 inches (127 mm) thick or 50 psf (2395 N/m2) and installed in accordance with Chapter 14 is permitted to a height of 30 feet (9144 mm) above a noncombustible foundation, with an additional 8 feet (2438 mm) permitted for gable ends. 2. Concrete or masonry fireplaces, heaters and chimneys shall be permitted in accordance with the provisions of this code. 2. Live loads shall not exceed 40 psf (1916 N/m2) for floors. 3. Ground snow loads shall not exceed 50 psf (2395 N/m2). IBC 2308 Conventional Light-Frame Construction

Ultimate Wind Speed. Vult shall not exceed 130 miles per hour (57 m/s) (3-second gust). Exceptions: 1. Vult shall not exceed 140 mph (61.6 m/s) (3-second gust) for buildings in Exposure Category B that are not located in a hurricane-prone region. 2. Where Vult exceeds 130 mph (3-second gust), the provisions of either AWC WFCM or ICC 600 are permitted to be used Allowable Roof Span. Ceiling joist and rafter framing constructed in accordance with Section and trusses shall not span more than 40 feet ( mm) between points of vertical support. A ridge board in accordance with Section or shall not be considered a vertical support risk Category Limitation. The use of the provisions for conventional light-frame construction in this section shall not be permitted for Risk Category IV buildings assigned to Seismic Design Category B, C, D or E. IBC 2308 Conventional Light-Frame Construction

(Modification) 2015 CODE: Allowable Roof Span. 5. Roof trusses and Ceiling joist and-rafters framing constructed in accordance with Section and trusses shall not span more than 40 feet ( mm) between points of vertical support. A ridge board in accordance with Section or shall not be considered a vertical support. IBC Allowable Roof Span

(Modification) 2015 CODE: Roof and Ceiling Framing. The framing detailsrequired in this section apply to roofs having a minimum slope of three units vertical in 12 units horizontal (25-percent slope) or greater. Where the roof slope is less than three units vertical in 12 units horizontal (25-percent slope), members supporting rafters and ceiling joists such as ridge board, hips and valleys shall be designed as beams Ceiling Joist Spans. Allowable sSpans for ceiling joists shall be in accordance with Table (1) or (2). For other grades and species, and other loading conditions, refer to the AF&PA AWC STJR. TABLE (1) TABLE (1) CEILINGJOIST SPANS for COMMON LUMBER SPECIES (Uninhabitable attics without storage, live load =10 psf, L/∆ = 240) (Table R802.4(1) from the International Residential Code) TABLE (2) TABLE (2) CEILING JOIST SPANS for COMMON LUMBER SPECIES (Uninhabitable attics with limited storage, live load = 20 psf, l/∆ = 240) (Table R802.4(2) from the International Residential Code) Rafter Spans. Allowable sSpans for rafters shall be in accordance with Table (1), (2), (3), (4), (5) or (6). For other grades and species and other loading conditions, refer to the AF&PA AWC STJR. The span of each rafter shall be measured along the horizontal projection of the rafter. IBC Roof and Ceiling Framing

TABLE (1) TABLE (1) RAFTER SPANS for COMMON LUMBER SPECIES (roof live load =20 pounds per square foot, Ceiling Not attached to rafters, L/∆ = 180) (Table R (1) from the International Residential Code) TABLE (2) TABLE (2) RAFTER SPANS for COMMON LUMBER SPECIES (roof live load = 20 pounds per square foot, Ceiling attached to rafters, L/∆ = 240) (Table R (2) from the International Residential Code) TABLE (3) TABLE (3) RAFTER SPANS for COMMON LUMBER SPECIES (Ground Snow load =30 pounds per square foot, Ceiling Not attached to rafters, L/∆ = 180) (Table R (3) from the International Residential Code) TABLE (4) TABLE (4) RAFTER SPANS for COMMON LUMBER SPECIES (Ground Snow load = 50 pounds per square foot, Ceiling Not attached to rafters, L/∆=180) (Table R (4) from the International Residential Code) TABLE (5) TABLE (5) RAFTER SPANS for COMMON LUMBER SPECIES (Ground Snow load = 30 pounds per square foot, Ceiling attached to rafters, L/∆ = 240) (Table R (5) from the International Residential Code) TABLE (6) TABLE (6) RAFTER SPANS for COMMON LUMBER SPECIES (Ground Snow load = 50 pounds per square foot, Ceiling attached to rafters, L/∆ =240) (Table R (6) from the International Residential Code) IBC Roof and Ceiling Framing

(Addition) 2015 CODE: General Design Requirements. The design of structural elements or systems, constructed partially or wholly of wood or wood-based products, shall be in accordance with one of the following methods: 1. Allowable stress design in accordance with Sections 2304, 2305 and Load and resistance factor design in accordance with Sections 2304, 2305 and Conventional light-frame construction in accordance with Sections 2304 and Exception: Buildings designed in accordance with the provisions of the AF&PA WFCM shall be deemed to meet the requirements of the provisions of Section AWC WFCM in accordance with Section The design and construction of log structures shall be in accordance with the provisions of ICC 400. SECTION 2309 WOOD FRAME CONSTRUCTION MANUAL Wood Frame Construction Manual. Structural design in accordance with the AWC WFCM shall be permitted for buildings assigned to Risk Category I or II subject to the limitations of Section of the AWC WFCM and the load assumptions contained therein. Structural elements beyond these limitations shall be designed in accordance with accepted engineering practice. IBC 2309 Wood Frame Construction Manual

(Modification) 2015 CODE: Glazing adjacent to the Bottom Stairway Landing. Glazing adjacent to the landing at the bottom of a stairway where the glazing is less than 36 inches (914 mm) 60 inches (1524 mm) above the landing and within a 60 inches (1524 mm) horizontally of arc that is less than 180 degrees (3.14 rad) from the bottom tread nosing shall be considered a hazardous location. Exception: Glazing that is protected by a guard complying with Sections 1015 and where the plane of the glass is greater than 18 inches (457 mm) from the guard. IBC Safety Glazing Adjacent to Bottom Stair Landing

(Addition)) 2015 CODE: SECTION 202 DEFINITIONS GYPSUM BOARD. The generic name for a family of sheet products consisting of a noncombustible core primarily of gypsum with paper surfacing. Gypsum wallboard, gypsum sheathing, gypsum base for gypsum veneer plaster, exterior gypsum soffit board, predecorated gypsum board and water-resistant gypsum backing board complying with the standards listed in Tables , and Chapter 35 are types of gypsum board. GYPSUM PANEL PRODUCT. The general name for a family of sheet products consisting essentially of gypsum. CHAPTER 25 GYPSUM BOARD, GYPSUM PANEL PRODUCTS, AND PLASTER General. Provisions of this chapter shall govern the materials, design, construction and quality of gypsum board, gypsum panel products, lath, gypsum plaster and cement plaster performance. Lathing, plastering, gypsum board, and gypsum panel product construction shall be done in the manner and with the materials specified in this chapter, and when required for fire protection, shall also comply with the provisions of Chapter Inspection. Lath, and gypsum board and gypsum panel products shall be inspected in accordance with Section Scope. The following requirements shall be met where construction involves gypsum board, gypsum panel products, or lath and plaster in vertical and horizontal assemblies Wood Framing. Wood supports for lath, or gypsum board, or gypsum panel products, as well as wood stripping or furring, shall not be less than 2 inches (51 mm) nominal thickness in the least dimension. Exception: The minimum nominal dimension of wood furring strips installed over solid backing shall not be less than 1 inch by 2 inches (25 mm by 51 mm) Studless Partitions. The minimum thickness of vertically erected studless solid plaster partitions of 3/8-inch (9.5 mm) and 3/4-inch (19.1 mm) rib metal lath or 1/2-inch thick (12.7 mm) long-length gypsum lath, and gypsum board, or gypsum panel product partitions shall be 2 inches (51 mm) Resistance to Shear (Wood Framing). Wood-framed shear walls sheathed with gypsum board, gypsum panel products, or lath and plaster shall be designed and constructed in accordance with Section and are permitted to resist wind and seismic loads. Walls resisting seismic loads shall be subject to the limitations in Section of ASCE Resistance to Shear (Steel Framing). Cold-formed steel framed shear walls sheathed with gypsum board or gypsum panel products, and constructed in accordance with the materials and provision of Section are permitted to resist wind and seismic loads. Walls resisting seismic loads shall be subject to the limitations in Section of ASCE 7. IBC Chapter 25 Gypsum Panel Products

Other Materials. Metal suspension systems for acoustical and lay-in panel ceilings shall conform with ASTM C 635 listed in Chapter 35 and Section of ASCE 7 for installation in high seismic areas. IBC Chapter 25 Gypsum Panel Products

(Addition) 2015 CODE: SECTION 202 DEFINITIONS PLASTIC COMPOSITE. A generic designation that refers to wood/plastic composites and plastic lumber. PLASTIC LUMBER. A manufactured product made primarily of plastic materials (filled or unfilled) which is generally rectangular in cross-section. WOOD/PLASTIC COMPOSITE. A composite material made primarily from wood or cellulose-based materials and plastic Scope. These provisions shall govern the materials, design, application, construction and installation of foam plastic, foam plastic insulation, plastic veneer, interior plastic finish and trim, and light- transmitting plastics, and plastic composites, including plastic lumber. See Chapter 14 for requirements for exterior wall finish and trim. SECTION 2612 PLASTIC COMPOSITES General. Plastic composites shall consist either of wood/ plastic composites or of plastic lumber. Plastic composites shall comply with the provisions of this code and with the additional requirements of Section Labeling and Identification. Packages and containers of plastic composites used in exterior applications shall bear a label showing the manufacturer’s name, product identification and information sufficient to determine that the end use will comply with code requirements Performance Levels. The label for plastic composites used in exterior applications as deck boards, stair treads, handrails and guards shall indicate the required performance levels and demonstrate compliance with the provisions of ASTM D IBC 2612 Plastic Composites

Loading. The label for plastic composites used in exterior applications as deck boards, stair treads, handrails and guards shall indicate the type and magnitude of the load determined in accordance with ASTM D Flame Spread Index. Plastic composites shall exhibit a flame spread index not exceeding 200 when tested in accordance with ASTM E 84 or UL 723 with the test specimen remaining in place during the test. Exception: Materials determined to be noncombustible in accordance with Section Termite and Decay Resistance. Plastic composites containing wood, cellulosic or any other biodegradable materials shall be termite and decay resistant as determined in accordance with ASTM D Construction Requirements. Plastic composites shall be permitted to be used as exterior deck boards, stair treads, handrails and guards in buildings of Type VB construction Span Rating. Plastic composites used as structural components of exterior deck boards shall have a span rating determined in accordance with ASTM D Plastic Composite Decking, handrails and Guards. Plastic composite decking, handrails and guards shall be installed in accordance with this code and the manufacturer’s instructions. (Sections 2612 and 2613 have been renumbered as Sections 2613 and 2614, respectively.) SECTION 1410 PLASTIC COMPOSITE DECKING Exterior deck boards, stair treads, handrails and guardrail systems constructed of plastic composites, including plastic lumber, shall comply with Section IBC 2612 Plastic Composites

Building Services, Special Devices and Special Conditions Chapters 27 through 34

Chapter 27 No Changes Chapter 28 No Changes Public Toilet Facilities 3004 Elevator Hoistway Venting 3006 Elevator Lobbies Chapter 31 No Changes Chapter 32 No Changes Chapter 33 No Changes Chapter 34 Existing Structures

(Modification) 2015 CODE: Required Public Toilet Facilities. Customers, patrons and visitors shall be provided with public toilet facilities in structures and tenant spaces intended for public utilization. The number of plumbing fixtures located within the required toilet facilities shall be provided in accordance with Section for all users. Employees shall be provided with toilet facilities in all occupancies. Employee toilet facilities shall be either separate or combined employee and public toilet facilities. Exceptions: Public toilet facilities shall not be required in: 1. Open or enclosed parking garages. Toilet facilities shall not be required in parking garages where there are no parking attendants. 2. Structures and tenant spaces intended for quick transactions, including take out, pick up and drop off, having a public access area less than or equal to 300 square feet (28 m2). IBC Public Toilet Facilities

(Deletion) 2015 CODE: The elevator hoistway venting provisions of Section 3004 have been deleted; such hoistways are no longer required to be vented to the exterior. IBC 3004 Elevator Hoistway Venting

(Modification) 2015 CODE: SECTION 3006 ELEVATOR LOBBIES and HOISTWAY OPENING PROTECTION General. Elevator hoistway openings and enclosed elevator lobbies shall be provided in accordance with the following: 1. Where hoistway opening protection is required by Section such protection shall be in accordance with Section Where enclosed elevator lobbies are required for underground buildings such lobbies shall comply with Section Where an area of refuge is required and an enclosed elevator lobby is provided to serve as an area of refuge, the enclosed elevator lobby shall comply with Section Where fire service access elevators are provided, enclosed elevator lobbies shall comply with Section Where occupant evacuation elevators are provided, enclosed elevator lobbies shall comply with Section IBC 3006 Elevator Lobbies

Hoistway Opening Protection Required. Elevator hoistway door openings shall be protected in accordance with Section where an elevator hoistway connects more than three stories, is required to be enclosed within a shaft enclosure in accordance with Section and any of the following conditions apply: 1. The building is not protected throughout with an automatic sprinkler system in accordance with Section or ; 2. The building contains a Group I-1 Condition 2 occupancy; 3. The building contains a Group I-2 occupancy; 4. The building contains a Group I-3 occupancy; 5. The building is a high rise and the elevator hoistway is more than 75 feet ( mm) in height. The height of the hoistway shall be measured from the lowest floor to the highest floor of the floors served by the hoistway. EXCEPTIONS 1. Protection of elevator hoistway door openings is not required where the elevator serves only open parking garages in accordance with Section Protection of elevator hoistway door openings is not required at the level(s) of exit discharge, provided the level(s) of exit discharge is equipped with an automatic sprinkler system in accordance with Section Enclosed elevator lobbies and protection of elevator hoistway door openings are not required on levels where the elevator hoistway opens to the exterior Elevator Lobby. Hoistway Opening Protection. Where Section requires protection of the elevator hoistway door opening, the protection shall be provided by one of the following: 1. An enclosed elevator lobby shall be provided at each floor where an elevator shaft enclosure connects more than three stories. The lobby enclosure shall to separate the elevator hoistway shaft enclosure doors from each floor by fire partitions in accordance with Section 708. In addition, to the requirements in Section 708 for fire partitions, doors protecting openings in the elevator lobby enclosure walls shall also comply with Section as required for corridor walls. and Penetrations of the enclosed elevator lobby enclosure by ducts and air transfer openings shall be protected as required for corridors in accordance with Section Elevator lobbies shall have at least one means of egress complying with Chapter 10 and other provisions within this code. EXCEPTIONS (DELETED) IBC 3006 Elevator Lobbies

2. An enclosed elevator lobby shall be provided at each floor to separate the elevator hoistway shaft enclosure doors from each floor by smoke partitions in accordance with Section 710 where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section or In addition, doors protecting openings in the smoke partitions shall comply with Sections , and Penetrations of the enclosed elevator lobby by ducts and air transfer openings shall be protected as required for corridors in accordance with Section Enclosed elevator lobbies are not required where an Additional doors are shall be provided at each elevator the hoistway door opening in accordance with Section Such door shall comply with the smoke and draft control door assembly requirements in Section when tested in accordance with UL 1784 without an artificial bottom seal. 4. Enclosed elevator lobbies are not required where the building is protected by an automatic sprinkler system installed in accordance with Section or This exception shall not apply to the following: 4.1. Group I-2 occupancies; 4.2. Group I-3 occupancies; and 4.3. Elevators serving floor levels over 75 feet above the lowest level of fire department vehicle access in high- rise buildings. 5. Smoke partitions shall be permitted in lieu of fire partitions to separate the elevator lobby at each floor where the building is equipped throughout with an automatic sprinkler system installed in accordance with Section or In addition to the requirements in Section 710 for smoke partitions, doors protecting openings in the smoke partitions shall also comply with Sections , , and and duct penetrations of the smoke partitions shall be protected as required for corridors in accordance with Section Enclosed elevator lobbies are not required where The elevator hoistway is shall be pressurized in accordance with Section Enclosed elevator lobbies are not required where the elevator serves only open parking garages in accordance with Section Means of Egress. Elevator lobbies shall be provided with at least one means of egress complying with Chapter 10 and other provisions in this code. Egress through an elevator lobby shall be permitted in accordance with Item 1 of Section IBC 3006 Elevator Lobbies

(Deletion) 2015 CODE:CHAPTER 34 EXISTING STRUCTURES (Chapter has been deleted in its entirety.) Existing Buildings. The provisions of the International Existing Building Code shall apply to all matters governing the repairs, alterations, change of occupancy, addition to and relocation of existing buildings. Chapter 34 Existing Structures

2015 IFC All changes not addressed in the International Building Code are Maintenance, Operation, Retro Active Requirements or Specialty Use and are not typically applicable to Construction.

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