Presentation on theme: "The New 8th Edition of the Massachusetts State Building Code"— Presentation transcript:
1 The New 8th Edition of the Massachusetts State Building Code Tom Riley – Department of Public SafetyRob Anderson – Department of Public SafetyA. Vernon Woodworth, AIA, LEED AP – R.W. Sullivan Engineering
2 780 CMR 8th Edition Base Code DisclaimerThis presentation attempts to familiarize users with the new 8th edition and specifically with what’s changed from the 7th edition. The information provided may have inaccuracies and cannot encompass all of the changes between the two editions of the building code.This training presentation may be found at the DPS website.
3 The 7th Edition Base Code +EmbeddedMA amendments=(Sold at State bookstore)Note: The code also references other MA codes (plumbing, electrical, etc.) and I-codes* which cover mechanical and energy requirements.*Can be purchased at
4 The 8th Edition uses I-codes MA Amendments+Note: The code also references other MA codes (plumbing, electrical, etc.)
6 Using the 8th Edition Base Code Example: How do I find energy requirements for building envelope sealing?Go to chapter13 of IBC: IBC says to use IECC.Found in section of IECC.Check MA amendments for chapter 13: it also says use IECC but with MA amendments.Note: MA amendments in 13 are listed according to IECC section numbers and yes, section has been amended!
10 Chapter 1 Administration OrganizationHow did we get 25-sections of the 7th chapter 1 to fit into the 16-sections of the IBC chapter 1 and keep amendments to a minimum?Reviewed every section of the 7th; found its’ corresponding location in 8th or added amendments if needed.Deleted several topics not in use (Construction Materials Safety Board, for example) and moved embedded ‘convenience’ information to website.Deleted MGL language; provided web link to MGL’s instead.Deleted Special Regulations language (CSL, Native Lumber, etc.); referenced chapter 110 instead.
11 Chapter 1: Administration IBC sections flow with project:GeneralApplicabilityDept. of Building Safety (Building Official)Duties of Building OfficialPermitsConstruction DocumentsSubmittal DocumentsTemporary Structures and UsesFeesInspectionsCertificate of OccupancyService Utilities -reservedBoard of AppealsViolationsStop work orderUnsafe Structures and Equipmentscopeadministrationpermittingconstructionproblems
12 Chapter 1: Administration Key itemsTownhouse requirements(101.2) clarified…hopefully!3-stories or less in one and two family code, appendix Z deleted.Independent Structural Review (105.9) narrowed…Required on only high rise and complex structuresConstruction control(107.6) language tightened…Alternative means and methods which deviate from prescriptive code requirements must be submitted to the building official for approval, separate from the plans.IBC inspection language loosened (110.3) …Construction inspection intervals may (not shall) include those set forth in sections throughPeriodic Inspection Table 110 (was Table 106) revised:Annual inspections of group residences removed.Fire escapes included.Temporary Certificate of Occupancy (111.3) :IBC language adopted authorizing building official.
13 Chapter 1: Administration Referenced Codes (101.4) Specialized codes (M.G.L. c. 143, § 96): used in MA instead of or in conjunction with I-codes (IFC, IMC, IPC etc.).Inspection of work under Specialized Codes by “individuals authorized by specialized codes”.Specialized code work impacting building features subject to inspection by the building official.Access enforced by the building official. See M.G.L. c. 22, § 13A.Bunkers and magazines for explosive materials, flammable/combustible liquids and chemical process safety, defaults to 527 CMR and are enforceable by the head of the fire department rather than the building official.Sheet Metal Regulations enforced by the building official. See M.G.L. c. 13, § 102.Specialized Codes(MGL 143 § 96)Plumbing CMRElectrical CMR12Access CMRFire Safety Code ?Fire Prevention CMRElevator CMRSheet Metal CMRFire Prevention ( ): Reference to the IFC or IMC for fire prevention issues shall be considered reference to 527 CMR. If 527 CMR does not address, then IFC or IMC shall apply. If a conflict regarding fire prevention requirements exists between 527 CMR and 780 CMR the more stringent standard shall apply.Building code requirements in the IFC and IMC are made a part of 780 CMR and are enforceable by the building official.Oil fired appliances governed by 527 CMR 4.00.
14 Chapter 1: Administration Other items of note:DDS Facilities ( ): Additional safety features in one and two family dwellings for group residence do not change the building classification from one and two family.Work exempt from permit (105.2): Now specifies painting…cabinetry…finish work and playground equipment.Permit application (105.3): Indicate if licensed by a State care agency.Electronic seal ( ): Allowed, see DPL website:Inspection intervals (110.3) : The building official shall conduct inspections…which may include inspections set forth in Sections throughLowest floor in flood zones (110.3): Certification must be submitted to BO that elevation is in compliance with section before work above that elevation proceedsTemporary Occupancy (111.3): Key change is that this IBC section is not amended. Like the 7th edition the building official has the sole authority to issue a temporary certificate. The 8th does not require consultation with the fire official (7th edition language).Unsafe structures (116.1) : Resurrected 6th edition language per DFS request.
15 Chapter 2: DefinitionsIBC definitions, some of which don’t exist in the 7th, were reviewed and retained.MA unique definitions added:Agriculture: as per MGLAgricultural , Building:Building Official: as per MGLDesign Flood: as per DEP/Appendix GDesign Flood Elevation:High-Rise Building: 70 for MA vs 75 feet in IBC.Jurisdiction: BBRSNight Club:Ordinance: means same as bylawRegistered Design Professional, RDP: applies to MA PE’s and registered architects.Specialized Codes: Just those listed in MGL 143 § 96Story Above Grade Plane:Temporary Emergency Uses:Temporary Overnight Shelter:
16 Chapter 3: Use and Occupancy Overview:In general, group homes, day care and related care facilities formerly in chapter 4 have been integrated into chapter 3.Once classified, all requirements to be enforced by the BO are found in the main body of the code.Special requirements and emergency evacuation requirements are covered by MA care agency regulations and enforced by the respective agency.7thChapter 4Group ResidencesDay Care centersLimited Group ResidenceDetox. FacilitiesGroup Dwelling units8thChapter 3Moved to
17 Chapter 3: Use and Occupancy Changes and noted issues:Day care: (305.2): MA cut-off age 2 yrs 9 mo vs IBC 2 yrs 6 mo.Group homes (308.2): No longer in chapter 4. Caveats retained to ensure one and two family group homes with five or fewer residents are treated strictly as one and two family dwellings. Ability to evacuate during emergencies is care agency’s responsibility - BO only inspects for compliance with the building code.I-2 and Residential care/assisted living facilities: (308.3) I-2 type facilities with up to 12 residents licensed or operated by DMH may be considered R-4 facilities.Child care vs Day Care ( ): To be determined if the term ‘child care’ is in error in this section and 310 of the IBC as these sections discuss care for less than 24 hours which is considered ‘Day Care’ elsewhere.R-1 classification (310.1): Summer camps listed but requirements still in chapter 4.R-2 classification (310.1): Includes day care of up to 10-children in an apartment and DMH licensed or operated units.R-3 classification (310.1): Day care of up to 10 children allowed in a unit. Townhouses of more than 3-stories added to list with note that height and area and fire protection in accordance with R-2. DDS and DMH group type facilities also noted.Definitions (310.2):Boarding House references the MGL definition;Congregate Care Facilities – definition added;Residential Care/Assisted Living Facilities – Elder Affairs and DMH MGL’s cited.Summer Camps- definition added.
18 Use Group A Section 303 Use Group A 6th Edition 8th Edition A-1 Fixed seating, concert halls, theaters (with stage)Fixed seating, concert halls, theaters (no change)A-2Banquet halls, night clubs, etc.Food and/or drink consumption:A-2nc (7th Edition, now A-2 - night clubs)A-2r (7th Edition, now A-2 uses other than night clubs i.e. restaurants, banquet halls, etc.)A-3Recreation or amusements uses, libraries, passenger terminals, restaurants other than night clubs, etc.Worship, recreation or amusement and other assembly uses not classified elsewhere (churches, lecture halls, libraries, museums, courtrooms, etc.)A-4Worship or religious assemblyIndoor sporting venues with spectator seating (skating rinks, arenas, swimming pools, etc.)A-5Outdoor assemblyOutdoor assembly (no change)** Assembly areas that are accessory to Use Group E are not considered separate occupancies (i.e. gymnasium, cafeteria, auditorium) per Section Exception 4.
19 Use Group B Section 304New ambulatory health care provisions in 780 CMR 422Buildings or portions thereof used to provide medical, surgical, psychiatric, nursing, or similar care for less than a 24-hr basis to individuals who are rendered incapable of self-preservationOutpatient clinicBuildings or portions thereof used to provide medical care on less than a 24-hr basis to individuals who are not rendered incapable of self-preservation by the services provided
20 Use Group E Section 305 Educational Day Care Buildings or portions thereof used by 6 or more people for educational purposes through the 12th grade(Religious educational rooms with less than 100 occupants that are accessory to a religious place of worship must be classified as Use Group A-3)Day CareBuildings or portions thereof used for educational, supervision, or personal care services for more than 5 children older than 2½ years old
21 Use Group I Section 308 Use Group I: I-1: Minimum number of occupants, who because of age, mental disability, or other reasons live in a supervised environment, is increased from > 6 to > 16 for classification as I-1.I-4 (day care facilities): New occupancy classification which includes buildings with > 5 persons, 2 years and 9 months or younger, who receive custodial care for less than 24 hours by individuals other than parent or guardian.Adult Care Facility – less than 24 hour care for >5 unrelated adultsPreviously classified as Use Group I-2 (hospitals) in 6th edition.
22 Use Group R Section 310Use Group6th Edition8th EditionR-1Transient (hotel, motel, boarding house)SameR-2Permanent with more than 2 dwelling units (apt houses, dorms)Same + Townhouses (3+ units) **R-31 or 2 family dwellings, multiple single familyBuildings with 2 or fewer dwelling units, or adult/child care facilities serving 5 or fewer people for less than 24hrs. *R-41 and 2 family detached, not more than 3 storiesResidential care / assisted living facilities for 6-16 people (excluding staff) *R-5Limited group residencesNo R-5 Use Group, Now I-1 or R-4* Assisted living/ residential care occupancy thresholds:> 16 people = I-16-16 people = R-45 or less people = R-3
23 Chapter 4: Special Use and Occupancy Section number changes start with section 19:7th Edition8th Edition19Mobile Units (Formerly referred to 110 R3, 8th in 110R3)Live/Work Units R-2, 50% non-residential, ,max 5-employees.20Swimming Pools (Formerly in Appendix M, 8th in 3109)Groups I-1, R-1, R-2, R-3 Fire separation requirements., not special use.21Group ResidenceHydrogen Cutoff Rooms Fuel cell related.22Day Care CentersAmbulatory Health Care Facilities Incapable23Summer Camps for ChildrenStorm Shelters Designed to ICC – 500 criteria.24Bulk Merchandising25Limited Group ResidenceMotion Picture/Television Facilities26Detoxification Facilities27Group Dwelling Units28Key: Red sections covered elsewhere in the 8thBlue titles new with 8th edition.
24 Chapter 4: Special Use and Occupancy Changes and noted issues:References to IFC; 527 CMR takes precedence over IFC where 527 CMR specifically addresses the topic. Both 527 CMR & IFC needed to properly review/enforce (see ).Fire department review; fire department must review/approve permit submittals (see ).Mall Buildings (402); now also applies to Open Mall Buildings (402.2).Open perimeter ( ); Option to reduce from 60-foot minimum in certain cases.Garages ( );Passenger car garages and open garages can be under the mall with 2-hr horizontal assemblies and be considered separate buildingHigh Rise (403); still Massachusetts specific: 70 feet vs 75 feetLess than 420 feet ( ); have less stringent fire-resistance requirements.Greater than 420 feet:Spray-on coverings; more stringent impact resistance ratings for fire resistant spray-on coverings.2 sprinkler risers ( ); minimum of 2 fire sprinkler risers located remote from each other. Adjacent floors cannot be supplied by the same sprinkler riser.Redundant water supplies ( ); required for fire pump installations.2-way radios ( ) ; must have equipment so that fire department radios are functional.Venting smoke ( ); must have means of venting smoke from building after fire.Stairs remoteness ( ); increased for exit stairs, scissor stairs considered one exit.Additional stairway ( ); required for buildings greater than420 feet.Luminous markings ( ); required in the exit enclosures to highlight egress paths.Fire Service Elevators ( ); required in all high-rise buildingsOccupant Evacuation Elevators ( ); IBC provisions for occupant evacuation elevators were not adopted by 780 CMR
25 Chapter 4: Special Use and Occupancy Parking garages (406)Vehicle barrier height ( ); requirement increased to 2-feet 9-inches from 2-feet due to increase in average vehicle size.Open wall space ( )to qualify as open parking garage - amended to 25% from 20% to be consistent with MGL’s.Hazardous materials (414 & 415); Detailed changes, including new control area approach, that are too detailed for this presentation
26 High-Rise Buildings Section 403.0 Fire pumps – two separate water supply connections from different streets or provide isolation valve arrangement from one streetElevator hoistway pressurization requirements have been relaxed: )dP = 0.10” H20 min. and 0.25”H20 max.7th Edition and 2006 IBC required 0.04” H20 min. and 0.06”H20 maxNo longer required to have vestibules at smokeproof enclosure stairs that are pressurized ( Exception)
27 Luminous Egress Path Markings Section 1024.0 High-rise buildings with Use Groups A, B, E, I, M, and R-1Markings within exit enclosuresStepsLandingsHandrailsDoorsSOURCE: American PERMALIGHT
28 High-Rise Buildings Section 403.0 Requirement> 70 ft> 120 ft FD Access> 420 ftSmoke Removal SystemFire Command CenterSeparate Water Supply Connections for Fire PumpsHoistway Pressurization OptionLuminous Egress Path MarkingsFire service access elevator ( )1 hour lobby w/ standpipeDirect access to exit stairStandby powerAdditional exit stairway or occupant evacuation elevator with lobby ( )1No Construction Type Modification ( )Impact resistant structural design ( )Sprinklers – min. two risers serving alternating floors ( )1. Occupant Evacuation Elevator - Reserved by MA.
29 Atriums Section 404.3Requires the entire building to be sprinklered unless:Exception 1: Areas adjacent to and above the atrium are separated by 2- hour rated construction.Exception 2: An atrium with a ceiling which is more then 55’ high is not required to have sprinkler protection at the ceiling.Smoke control required in all atriumsGenerally required smoke exhaust will be increased compared to previous codes.Brought back the exception for a two story atrium - does not require smoke control (This exception was removed in the 7th edition)
30 Atriums Section 404.6 Atrium Separation 1-hr rated fire partitions Exceptions:Glass with sprinkler protection.Adjacent spaces of any three floors can be open to the atrium provided the volume of these spaces is included is the smoke control system design.
31 Atriums Section 404All two-story floor openings exempt from smoke control, except Use Group H (404.5 ex)Smoke control design based on an engineering analysis using NFPA 92B (909.8)Criteria6th Edition7th Edition8th EditionSmoke Layer6 ft10 ftFire Size2,000 Btu/s5,000 Btu/s*Subject to designer and engineering analysisFire ScenariosOneThreeTime20 min1.5 times egress* Alternate Fire Protection design permitted by Chapter 9 can be used to account for sprinklers and geometry
32 Exhaust Requirement (cfm) Free Area for make-up air @ 200 ft/min (ft2) Example Exhaust RatesExample 5-story atriumCodeExhaust Requirement (cfm)Free Area for make-up 200 ft/min (ft2)6th Edition (2,000 Btu/s)195,9309807th Edition (5,000 Btu/s)664,4303,3208th Edition (2,000 Btu/s)479,6552,4008th Edition w/modeling207,830600** Fire modeling may show make-up air > 200 ft/min is acceptableFire modeling permitted with a third party reviewVariances for fire modeling are no longer required
33 HazMat Control Areas Section 414 Generally same quantity limits.1-hour floor assemblies now permitted for fully sprinklered buildings of Type IIA, IIIA, and VA construction that are 3 stories above grade or less ( exception)7th Edition and prior versions of IBC required 2-hour floors regardless of building height
34 Special Uses Chapter 4 Live/Work Units (Section 419) Use Group R-2Max of 3,000 sq ft, max of 50% can be nonresidentialNon-residential area must be on first or main floor of the unitAmbulatory Health Care (Section 422)Use Group B – 1 or more patients incapable of self preservationSmoke compartments (if > 10,000 sq ft)Max distance to smoke barrier door must be < 200 feetMotion Picture and Television Production Facilities (Section 425)Standard on Motion Picture and Television Studios (NFPA 140)
35 Chapter 5 General Building Heights and Areas Independent of other chaptersControls the size of a building of a particular ‘use’ and ‘construction type’Special Industrial buildings ( ) are exempt from Chapter 5 requirements.Hospital construction ( )– MGL c.111, § 51 requires hospitals to be of at least TYPE IB construction (see Chapter 6).Exception (504.1) – 527 CMR 10 & 25 give authority to Fire Services relative to required fire lane size and layout.
36 General Building Heights & Areas Chapter 5 The allowable building height in stories has been reduced for Use Groups B, M, S-1, and S-2 of Construction Types IIB and IIIB. See Table 503 for all height and area requirements.Use Group7th Edition8th EditionBusiness (B)4 Stories3 StoriesMercantile (M)2 StoriesModerate Hazard Storage (S-1)Low Hazard Storage (S-2)
37 Chapter 5 General Building Heights and Areas Automatic Sprinkler system increase (504.2) / Big Residential buildings in MA get increases using full NFPA 13 systems – i.e. perUnlimited areas buildings (507.4) of more than 1 story- this section is ‘reserved’.Mixed Use & Occupancy (508) has been relocated to this chapter with some changes and addresses requirements for each USE/Separation/Accessory & Incidental Use requirements.
38 Accessory Areas Section 508.2 Fire separation assembly not requiredNot more than 10% of any fire areaDoes not exceed tabular values in Table 503Construction type and fire protection system requirements based on main use of buildingAreas that require a fire barrierHigh Hazard (Use Group H)Incidental Use Areas (Table )Assembly areas that are not considered separate occupancies/ exceptions to general accessory area rulesRooms less than 750 SF (Section Ex.3)Accessory to Group E (Section Ex. 4)
39 Accessory Areas Section 508.2 Example: Office buildingType IIA ConstructionUnsprinkleredNo Perimeter AccessBusiness Use (B) 30,000 SFTotal Fire Area = 37,500 SFActual Floor Area (Main Use + Accessory)Allowable Area of Building (B) = 37,500 SFAllowable Area of Accessory Use (S-1) = 26,000 SFStorage Area is < 26,000 SF OK10% of Total Fire Area = 3,750 SFStorage Area is > 3,750 SF NOT OKAccessory Area Does NOT ComplyStorage Use (S-1)7,500 SF
40 Incidental Accessory Occupancies Section 508.2 Require separation/ protection per TableRated constructionAutomatic fire-extinguishing systemOnly incidental accessory space must be protectedSmoke resistant wallsAutomatic or self-closing doorsIncidental storage rooms over 100 ft2 are no longer required to be separated by 1 hour.
41 Incidental Accessory Occupancies Section 508.2.5 Table is no longer divided by use group.Removed storage rooms > 100 sfFire pump rooms must be 2-hr rated1-hr and sprinkler protection permitted in non-high rise buildings
42 Non-separated Use Groups Section 508.3 No fire separation required between uses, unless required by other provisionsHeight and area limited by most restrictive useFire protection systems provided throughout in accordance with most restrictive useAll other requirements apply to each portion of the building based on use group
43 Separated Use Groups Section 508.4 Fire separation assembly required between uses when required by Table 508.4Height and area limited based on a pro-rated calculationAll other requirements apply to each portion of the building based on use groupSprinkler protection required based on mostrestrictive use of a fire area as required by Chapter 9
45 Separated Use Groups Section 508.4 Height and area limitations for each fire area are based on use groupIn each story, the sum of the ratios of the actual floor area to allowable area for each use group must not exceed one.
46 Separated Buildings Section 503.1.2 Separated by fire wall per Section 706.1Code requirements based on use group(s) and construction type of each building individuallyHeight and area limitations apply to each building individually
47 Special Provisions Section 509 Special conditions that are exempt from, or modify, the height and area requirements of Chapter 5Horizontal building separation allowanceEnclosed parking garage with open parking garage aboveGroup R-1 & R-2 of Types IIA & IIIAGroup B & M with open parking garagesMultiple Buildings above parking garages
48 Markings and Identification Section 703.6 Fire walls, fire barriers, fire partitions, smoke barriers, and smoke partitions, or any other wall required to have protected openings or penetrations must be identified with signs or stencilingRequired at 30’ intervals horizontally“FIRE AND / OR SMOKE BARRIER – PROTECT ALL OPENINGS”
49 Sprayed Fire-Resistance Materials Section 704.13 Specifically regulates the application of SFRMs to minimize the potential for the materials to be dislodged; including:Surface conditionsSubstrate conditionsConditions for applying to primers, paints and encapsulatesFlange depthWeb depthTemperature at time of installationFinished condition
50 Exterior Walls Sections 705.5 & 714.4.1 Exterior walls are required to be rated for fire exposure from both sides when the fire separation distance is 10’ or less (previously 5’ or less).Clarification: Voids between exterior curtain walls and nonfire-resistance-rated floor or floor/ceiling assemblies must be sealed with approved material to retard the interior spread of fire and hot gasses.Source: ICC 2009
51 Fire Protection Systems Chapter 9 Background:BBRS voted to carry forward 7th edition Chapter 9 requirements and not lower level of safety from that required by 7th editionIBC has ‘enforcement authority’ language that needed to be addressed.
52 Fire Protection Systems Chapter 9 Few Technical changes…If you know the 7th then you’ll have a good start on the 8th.IBC makes Numerous references to the International Fire Code 2009 (IFC).MA State Fire Code (527 CMR) takes precedence over IFC where 527 CMR specifically addresses the topic.Both 527 CMR & IFC needed to properly review/enforce (901.1 Note 2)
53 Fire Protection Systems Chapter 9 Authority language streamlined: In most cases approval authority lies with either the building official or fire official.Emergency responder radio coverage required for all new buildingsRequired smoke alarms still photoelectric only.Portable Fire Extinguisher section expanded.Carbon Monoxide protection clarified…is required for all places with sleeping arrangements, not just where there is parking or fossil fuel burning equipment.Smoke Proof Enclosures: Unique MA requirement not carried to the 8th edition.
54 Fire Protection Systems Chapter 9 Several MA amendments to NFPA Standards are incorporated:NFPA 72, Fire Alarm Code: 2010 (not 2007)NFPA 720, Carbon Monoxide: 2009 (not found in IBC)NFPA 92B, Smoke Management Systems: (not 2005)NFPA 130, …Transit and Passenger Rail Systems: 2010 (not found in IBC)also NFPA 140, 15, and 750.
55 Fire Protection Systems Chapter 9 Changes and noted issues:Submittals ( ): Local Fire Department must review/approve fire protection submittals for building permit.Authority (901.1): Contains multiple changes to enforcement authority, including issuance of a temporary C of O (909.19).Acceptance Tests (901.5).Building official and/or fire official (or third party) must witness acceptance testsSprinkler requirements (Table 903.2)Most sprinkler thresholds in Tabular form. Note: fire area concept from IBC of where sprinklers are required is not valid. Sprinklers generally required throughout building when required.Non-nightclub A-2: sprinklered at 100 occupants; other A-2 triggers remain unchanged.Ambulatory Health Care: certain facilities sprinkleredMercantile Use with upholstered furniture: sprinkleredSprinkler StandardsClarified NFPA 13R use – cannot be used in a Mixed Use buildingClarified that townhouses require fire sprinkler protection13R not allowed in R-Use when area greater than 12,000 ft.Balconies of Type V construction need sprinkler protection when using a 13R system ( )A-2 Nightclub fire alarm activation( ) : illuminate egress; bring house lights to full; stop audible/visible distractionsUse Group E fire alarm system( ): requires voice capabilitiesSmoke alarms( ): must be photoelectric typeSleeping areas in non-R Use ( ): must have fire detection/notification system protecting the sleeping area and its egress– for example a bunk room in a B-Use fire station.Manual Pull Stations (various sections): IBC allows these to be eliminated in certain sprinklered buildings…the 8th edition (like the 7th edition) for the most part requires manual pull stations.Independent third party review (909.2): required for performance-based smoke control systems
56 Fire Command Center Section 911.0 Min area of fire command center is 200 SFMin dimension in any direction is 10 ft.1 hour rated roomLocation subject to the approval of the Fire Department
57 Smoke Control SystemSmoke control design based on an engineering analysis using NFPA 92B (909.8)Smoke layer height reduced to 6’ ( )Computer Fire ModelingCodeExhaust Requirement (cfm)6th Edition: Axisymmetric *195,930CodeExhaust Requirement (cfm)2,000 Btu/s5,000 Btu/s8th Edition: Axisymmetric207,830*299,850**8th Edition: 20' Wide Balcony Spill479,655664,4308th Edition: Window Spill Plume187,695203,1858th Edition
58 Means of Egress Chapter 10 MA-unique requirements of 7th & 8th Edition:Fire escapes: Maintenance and certification, etc.MA-Specialized Codes: Express recognition of.B-use locking arrangements: Special MA-allowed locking arrangements for B-USE buildings where 1 tenant occupies an entire floor.Electromagnetic striker lock: Recognition of MGL c.143 § 3R.Nightclub egress: Special egress requirements for new construction nightclubs.
59 Means of Egress Chapter 10 Differences between the 7th and 8th:Minimum egress dimensions (1005.1): 7th Edition egress factors of 0.15 / 0.2 allowed (except in H & I-2 occupancies) only when equipped w/fire sprinklers AND voice evacuation. Otherwise must use 0.2 / 0.3 egress factors.Electrical rooms ( ) : Now required to have additional exit signage no more than 18 inches off of the floor.Exit travel distance increase for F-1 or S-1 Uses (1016.1) : Allowed exit travel distance increased to 400’ for one story F-1 and S-1 Uses when such buildings equipped throughout w/fire sprinklers and buildings have automatic heat and smoke roof vents.Assembly main exit, ( EXCEPTION): For nightclubs w/50 or more occupants, this Exception allowing distributed exits is overridden by the primary main exit requirements for nightclubs .
60 Occupant Load TableOccupant Load Table has additional uses and some factors have changed780 CMR Table (6th Edition)Occupancy6th Edition7th/8th EditionDormitory200 gross50 grossAssembly Standing3 net5 netAssembly Gaming?11 grossDay Care35 netExercise RoomsKitchensStages & Platforms15 net
61 Egress Capacity Section 1005.1 Egress capacity factors are as follows (other than H and I-2):BuildingComponent6th and 7th Editions(Inches / occupant)8th EditionNot SprinkleredStairways0.3Other Components0.2Sprinklered0.15Sprinklered and Voice Alarm Communication System - Except H & I-2 (MA Amend.)
62 Panic Hardware Section 1008.1.10 Doors serving Group H or rooms and spaces with an occupant load of 50 in Groups A or E must not be provided with a latch or lock unless it is panic hardware or fire exit hardwareRequired in 7th edition for Group H or 100 occupants in Groups A or E
63 Gates SectionIf used as a component in a means of egress, must comply with door requirementsDoor clearance requirementsLanding on both sides of gate
64 Required Locations for Guards Section 1013.1 Requirements for guards are now determined based on the lowest grade point measured vertically from within a horizontal 36-inch radius from the walking surfaceSource: ICC 2009
65 Minimum Guard Height at Fixed Seating Section 1013.2 Fixed seating next to a guard is now considered a walking surface, the minimum height of the guard is now measured from that surface.Source: ICC 2009
66 Single Means of Egress Section 1014.3 &1015.1 Use Group R-2Occupant load increased from 10 to 20 people in buildings equipped with an automatic sprinkler system.Common path of travel increased from 75’ to 125’ in buildings equipped with an automatic sprinkler system.Day Care (E or I-4)Max. occupant load of 10 for single-exit classrooms (350 sq. 35 sq. ft. per occupant)7th Edition limit was 50 people (1,000 sq. ft.)
67 Dead Ends Section50 ft dead end allowance expanded to include fully sprinklered Use Groups E, I-1, M, R-1, R-2, R-4, S and U in addition to Use Groups B and F
68 Open Egress Stairs Section 1022.1 & 1016.1 Exceptions 3 & 4 allow 2 story open stairs to serve as required means of egress.Exceptions moved to exit access section (no exception in stair enclosure section)Travel distance measured along open stair to exterior door or rated exit enclosure.
69 Energy Efficiency Chapter 13 OverviewWhat is the Same?Technical and administrative MA Amendments.ASHRAE remains the default design option.What is different?Format and Section numberingNo new major requirements; The devil is in the details…
70 Energy Efficiency Chapter 13 Changes and noted issues:MA Amendments; No technical/administrative differences between 7th & 8th Edition.Technical differences ; are between IECC-2006 w/2007 Supplement and IECC-2009.Format/Section numbering changes; exist between IECC-2009 and earlier variant.ASHRAE (C1); remains the default design option.Administrative criteria (C1); C1 of the 8th overrides the admin. criteria of C1 of IECC-2009.Vapor retarder (C4); requirements of IECC-2007moved to IRC-2009, C6 & C11.Prescriptive changes (T and T ); several numerical changes to R or U Factors.Optional air leak testing ( ); allows, as an option, physical air leakage testing (testing is not mandatory as visual inspections allowed).Computer modeling (405); : “SIMULATED PERFORMANCE ALTERNATIVES” has an expanded set of guidance/requirements on how to do such computer modeling.Prescriptive changes (T & T502.2(1)); reflect more stringent R and U values and generally require different R and U values for “Commercial” buildings v. “Residential” buildings.Vapor retarder(C5); requirements of IECC-2006/2007 moved to C14 of the IBC-2009.
71 Energy Efficiency Chapter 13 HVAC equipment performance requirements ( ); the EXCEPTION, now in more detail, addresses water-cooled centrifugal water chilling packages not designed for operation at ARHI Standard conditions.Chiller efficiency (T (7)); updated efficiency requirements.Snow melt systems ( ); requires auto shutoff controls for heated pavements.Pipe insulation (T ); has slightly more conservative pipe insulation thicknesses than earlier table versions.Air systems ( ): inclusive, addresses air system design and control.Hydronic pump system ( ); “Hydronic (water loop) heat pump systems”, inclusive, updated.Lighting in dwelling units (505.1) ; EXCEPTION, exempts lighting w/in dwelling units where 50% or more of permanently installed interior light fixtures use high-efficacy lamps.Total connected interior lighting power ( ); EXCEPTIONS have been expanded.Exterior light zones (T (1)); Table has been added.Total building performance (506 inclusive); has an expanded set of guidance/requirements on how to do such computer modeling.
72 Energy CodeAdditions, renovations, and repairs to an existing building must conform to the code for new construction, without requiring the unaltered portion of the building to complyIf the energy use of the building is not increased the following need not comply:Storm windowsGlass only replacements in existing sash and frame (unless required elsewhere in IEBC)Existing ceiling, wall, and floor cavities exposed during construction – if filled with insulationConstruction where existing roof, wall or floor cavity is not exposed
73 CHAPTER 115 AA Stretch Energy Code OverviewThe STRETCH ENERGY CODE is the first locally adoptable set of 780 CMR regulations that the BBRS has ever promulgated.This Energy Code affects low rise residential buildings (both new construction and existing buildings when undergoing renovation), as well as new construction “commercial” buildings of certain sizes (but does not impact existing “commercial” buildings undergoing renovation (baseline energy code requirements do impact existing “commercial” buildings undergoing renovation.
74 Structural Design Chapter 16 What is the same in the 7th and 8th?Unique Snow and Wind loadsSeismic coefficients same as IBC but values in Table of ASCE 7 have been amended by MA.Unreinforced Masonry (URM) not allowedSnow Drift Geometries go beyond ASCE-7Some analysis methods not permittedSAC* feels these will disappear from the national code soon. *Structural Advisory CommitteeASCE edition still in playTown Houses (3 or less stories) Structural will be in the 8th 1&2.
75 Structural Tests and Special Inspections Chapter 17 7th Edition ‘Unique’ Chapter 17 Key Points:Required a ‘Quality Assurance Plan’ that was the responsibility of the ‘Registered Design Professional’8th Edition MA amendments to IBC:The owner shall provide for a registered design professional in responsible charge of controlled construction who shall:Assume BO duties assigned by the IBCSubmit a Test and Inspection PlanSubmit a Final Test and Inspection Report, prior to C of O.
76 Structural Tests and Special Inspections Chapter 17 8th Edition MA amendments to IBC:The contractor shall provide to the registered design professional and BO a quality control program for the construction regulated by this chapter.Exceptions to Chapter 17 Special Inspections:Certain fabricators of structural steel, precast concrete, cold-formed steel trusses and wood trusses
77 Chapter 18 Soils and Foundations This chapter is heavy with MA amendmentsEssentially functions like 7thBroad coverage of various soil types and conditionsMA amendment allows Building Official to waive geotech investigation:Where satisfactory data from adjacent areas is available that demonstrates an investigation is not necessary to meet the requirements of this chapter or,For unoccupied structures that do not pose a significant risk to public safety in the event of failure; orFor structures used for agricultural purposes.
78 Special Construction Chapter 31 This Chapter addresses construction of:Membrane (inflatable and tent-like) structures erected for 180 days or longer / if shorter term, see the IFC-2009.Temporary structures other than temporary tents and membrane structures (erected for < 180 days).Pedestrian walkways & tunnels.Awnings/canopies.Marquees & Signs.Telecommunication & broadcast towers.Swimming pool enclosures & entrapment control.Automatic Vehicular gates.
79 Special Construction Chapter 31 7th Edition amendments are carried into the 8th Edition.MA amendments now also include:Temporary Overnight shelters for the homeless.Temporary Emergency Use of buildings in times of public emergencies.
80 Pedestrian Walkways Section 3104.0 7th & 8th Editions clarifies that pedestrian walkways can be at grade6th edition only mentioned elevated walkways2-hr separation at connections extending 10 ft in all directionsException – Both buildings and the walkway are fully sprinklered and the building are more than 10 ft apartLimited to 30 ft in widthOnly materials approved by the building official inside
81 Introduction to the International Existing Building Code Tom Riley – Department of Public SafetyRob Anderson – Department of Public SafetyA. Vernon Woodworth, AIA, LEED AP
82 Existing Buildings Chapter 34 Use IEBC 2009, w/MA amendments.IEBC approaches include:Prescriptive method (Chapter 3)Work area method (Chapters 4 to 12):Repairs, Alterations: Levels 1, 2, and 3 orChange of occupancy, Additions, Historic Buildings, or Relocated BuildingsPerformance method (Chapter 13) but with peer review option for Building Official
83 IEBC Fire Protection Requirements Section References:Repairs & Alterations Level 1, etc. (503.1, 603.1, ) shall be done in a manner that maintains the level of fire protection provided.Major Alterations (503.2, 603.2, , 804.1): Automatic sprinkler systems may be required in building undergoing major alterations per sectionScope (704.1): The requirements of this section shall be limited to work areas in which Level 2 alterations are being performed, and where specified they shall apply throughout the floor on which the work areas are located or otherwise beyond the work area.Corridor ratings ( ): Where an approved automatic sprinkler system is installed throughout the story, the required fire-resistance rating for any corridor located on the story shall be permitted to be reduced in accordance with the IBC. In order to be considered for a corridor rating reduction, such system shall provide coverage for the stairwell landings serving the floor and the intermediate landings immediately below.Automatic sprinkler systems (704.2): Automatic sprinkler systems shall be provided in accordance with the requirements of Sections through Installation requirements shall be in accordance with the IBC.High Rises,A, B, E, F, etc. and mixed uses, (MA amendment exception pertains to R-2 of three units)Windowless stories,Other suppression systems,Supervision
84 IEBC Fire Protection Requirements Key Provisions:Repairs & Alterations Level 1 shall be done in a manner that maintains the level of fire protection provided.Buildings undergoing Major Alterations (per M.G.L. C148 §26G) may require automatic sprinkler systems.In general:The addition of Fire Protection systems pertains to the area being worked.When systems are added the requirements are found in Chapter 9 of the IBC (with MA amendments)
85 IEBC Fire Protection Requirements Section References:Standpipes (704.3): Where the work area includes exits or corridors shared by more than one tenant and is located more than 50’ above or below the lowest level of fire department access, a standpipe system shall be provided. Standpipes shall have an approved fire department connection with hose connections at each floor level above or below the lowest level of fire department access. Standpipe systems shall be installed in accordance with the IBC. (This section includes 2 exceptions)Fire alarm and detection (704.4): An approved fire alarm system shall be installed in accordance with Sections through Where automatic sprinkler protection is provided in accordance with Section and is connected to the building fire alarm system, automatic heat detection shall not be required.An approved automatic fire detection system shall be installed in accordance with the provisions of this code and NFPA 72. Devices, combinations of devices, appliances, and equipment shall be approved. The automatic fire detectors shall be smoke detectors, except that an approved alternative type of detector shall be installed in spaces such as boiler rooms, where products of combustion are present during normal operation in sufficient quantity to actuate a smoke detector.Occupancy requirementsSupplemental fire alarm system requirements.Smoke alarms
86 IEBC Fire Protection Requirements Section References:Automatic sprinkler systems (804.1): Automatic sprinkler systems shall be provided in all work areas when required by Section or this section.High-rise buildingsRubbish and linen chutes- Fire alarm and detection systems (804.2): Fire alarm and detection systems complying with Sections and shall be provided throughout the building in accordance with the IBC.Manual fire alarm systems (MA amendment deletes Exception 2)Automatic fire detection
87 MA Egress Amendment IEBC MA Amendment Section 102.2.2 Means of egress in existing buildings, whether or not undergoing repairs, alterations, or changes of occupancy must comply with the code provisions for new construction with regards to:The minimum number of exitsRequired egress capacity
88 Sprinklers in Existing Buildings IEBC MA Amendment Section 22.214.171.124 Reference to the amended MGL c.148 Section 26GAll buildings over 7,500 gsf undergoing addition or major renovationBuilding size determined irrespective of the existence of interior “fire resistive walls”Exceptions: open parking structures, residential buildings & state owned facilitiesApplies throughout the stateEnforced by fire official independent of building code
89 IEBC Key ‘Structural’ Amendments 6th and 7th edition ‘Essential Elements’ brought forwardInvestigation and Evaluation ( )Required for ‘Construction Control’ projectsTable of ‘Basic Seismic Force Resisting Systems’( )Reduced level of seismic forces permitted for certain projects ( )Modified ‘reduced seismic level force’ requirement to be consistent with the 6th edition. (IEBC is a fixed 75%)
90 IEBC Key ‘Structural’ Amendments (cont.) Added ‘cumulative effects of alterations since original construction’ (various locations)Inserted a list of triggers to allow minor alterations to proceed with no or minimal structural analysis. (101.9)Added a requirement for anchorage of unreinforced masonry (101.10)
91 IEBC Key ‘Structural’ Amendments (cont.) Modified parapet bracing requirement to include Seismic zones B and C. ( )Note that IEBC requires this work only when reroofing is done.Exception for low height to thickness ratiosRelief provided on structural triggers on reroofing ( )Raised trigger to >105 mph (was > 90 mph)Note this will include much of greater BostonOnly in cases of complete reroofing (was >50%)
92 IEBC Key ‘Structural’ Amendments (cont.) Relief provided on vertical additions. IEBC requires compliance to ‘full seismic’. ( )Amendment allows for ‘reduced seismic’However, no relief on horizontal additionsModified ‘Appendix A1’ to assign prescribed values of certain masonry properties without testing. ( appendix A1)IEBC wind loads requirements not changed.
93 Risk AbatementAnalyzed typical existing building projects / these “sample projects” will be placed on the DPS web site during February 2011.Completed these (others pending):Solar Panel Installation (2 different projects)Mill Building B and S-Use RenovationConversion of Warehouse of B-Use to ResidentialElevator InstallationModernization of an Apartment BuildingTenant ImprovementThree Family Energy UpgradeCondo Complex Window ReplacementRow BuildingIn general, IEBC is consistent with past practice.
94 Three Compliance Methods Work Area Method may have some dependency between chapters.The methodis the choice of the owner.The three methods areindependent.
95 Compliance Methods Three ways to comply with the code: Prescriptive Compliance Method:Additions, alterations or repairs, unless otherwise noted, follow that of new construction.Mostly seismic upgrade requirementsIntended for newer buildingsRequires full compliance with IBC Structural requirementsWork Area Compliance Method:Requirements are based on level of work and generally apply to work area only.Performance Compliance Method:Utilizes a point system to ensure the level of public safety, health & welfare is maintained or exceeded after a renovation.Permits flexibility with unique projectsRegardless of which option is chosen, IEBC Chapter 1 always applies and contains many unique MA amendments (i.e. structural systems, egress, fire protection, etc).
96 Existing Building Reports IEBC MA Amendment Section 126.96.36.199 For any proposed work regulated by this code, the existing building shall be evaluated in accordance with the provisions of this code, including:Design gravity loadsLateral load capacityEgress CapacityFire protection systemsFire resistive constructionInterior environmentHazardous materialsEnergy conservationA written report must be submitted to the building official as a condition of the issuance of a building permit.
98 IEBC: Prescriptive Classifications In general all new work or new components of altered systems must comply with the code for new construction.Specific Chapters containing requirements for:AdditionsAlterationsRepairsFire escapesChange of OccupancyHistoric BuildingsMoved Structures
99 Prescriptive Compliance Method Section 303.3 – 303.4 Alterations:Existing structures carrying gravity loads must meet the code for new construction under any of the following circumstances:The design gravity load is increased by 5%.The capacity of the structural member is reduced.Existing structures carrying lateral loads must meet the code for new construction under any of the following circumstances:The design lateral load is increased.The alteration results in a structural irregularity as defined in ASCE 7.Exception: Lateral load-carrying members where the demand-capacity ratio with the alteration is increased by less than 10% of the ratio when ignoring the alteration.
100 Work Area Method Chapters 4 – 12 IEBCWork Area Method Chapters 4 – 12
101 Work Area Compliance Chapters 4 - 12 Provisions are based on the type of work as defined in Chapter 4Repairs (402):Patching, restoration, or replacement of damaged elements to good or sound condition for maintenance purposes.Level 1 Alteration (403):Alterations to elements to serve the same purpose. No reconfiguration of spaces.Level 2 Alteration (404):Reconfiguration of spacesAddition or elimination of windows or doorsInstallation of any additional equipmentRenovation area ≤ 50% of the aggregate building area.Level 3 Alteration (405):Renovation area > 50% of the aggregate building area.Change of Occupancy (406)Additions (407)Historic Buildings (408)Relocated Structures (409)
102 Work AreaDefined as:The portion or portions of a building consisting of all reconfigured spaces as indicated on the construction documents.Excludes other portions of the building where incidental work entailed by the intended work must be performed and portions of the building where work not initially intended by the owner is specifically required by this code.
103 Repairs Chapter 5Non-structural repair work other than routine maintenance / and where such repairs require a permit / can be made with same or like materials.Unique to Massachusetts:Means of Egress RepairsEgress capacityExit signage and lightingUnsafe or dangerous conditionsStructural RepairsExtent of damage determines the loads to be used for design of repaired buildingIn some cases, repairs can meetThe code for construction that was in effect at the time the building was constructedThe reduced loads table, Table (unique to MA)The code for new constructionDelete Electric and Plumbing Requirements
104 Level 1 Alteration Chapter 6 New finishes must comply with 780 CMR for new construction (602.1 – 602.3).New work must comply with the materials and methods of the applicable code (602.4).Major alterations could require sprinklersStructural upgrades could include:Gravity members if dead load increased by > 5%Anchoring / bracing of masonry / concrete wallsRoof diaphragms and connections to resist wind loads
105 Level 2 Alteration Chapter 7 Compliance with Level 1 work required (701.2).All new construction and elements must comply with the code for new construction except as noted in Chapter 7 (701.3).For example dead end corridors and ceiling heights have slightly less stringent requirements.All floor openings must be enclosed with 1-hour fire resistance rated construction except:Where permitted by the code for new constructionThe entire area is open and unobstructed (with limitations)Use Group specific allowances for rating reductions or allowed floor openingsExisting vertical openings up to 3 stories are permitted in fully sprinklered buildings of Use Group B, E, F, M, R-1, R-2, S
106 Level 2 Alteration Floor Openings (703.2) Additional Requirements ( ):If work area exceeds 50% of the floor area, then all vertical openings other than stairways must comply with (applies outside work area)Does not include vertical openings in tenant spaces completely outside the scope of work.Stairway Enclosure Requirements ( ):If work area exceeds 50% of the floor area, then all egress stairways must be enclosed with smoke-tight construction (at a minimum) from the highest work area floor and all floors below.Unless enclosure is not required by 780 CMR
107 Level 2 Alteration Chapter 7 Existing interior finishes in exits and corridors within work area must comply with 780 CMR requirements (703.4)If the work area is > 50% of the floor area, entire floor must use 780 CMR approved finishesAutomatic sprinkler systems must be installed in the work area if: (704.2)The work area has exits or corridors shared by more than one tenant or they serve more than 30 occupantsThe work area exceeds 50% of the floor areaThe water supply is sufficient780 CMR requires itFire alarm systems are required in the work area for Use Group E, I, and R occupancies (704.4)Required throughout the floor if the work area exceeds 50% of that floorIn general, egress requirements for doorways or corridors in work areas follow that of new construction ( )Egress lighting and exit signs are required in work areas ( )
108 Level 2 Alteration Chapter 7 Structural:New structural members, meet code for new constructionAlterations not resulting in supporting additional loads can use the loads applicable at the time the building was constructed as the minimum design loadsGravity load requirementsException: Since original construction, structural elements whose stress is not increased by more than 5 percentLateral load requirements apply when the alteration is considered more than 10 percent greater than its demand-capacity ratio with the alteration ignoredVoluntary lateral-force-resisting alterationsNot required to comply with forces in IBC provided that an engineering analysis complies with 4 conditions
109 Level 3 Alteration Chapter 8 Compliance with Level 1 and 2 work required (801.2)Existing shafts and vertical openings must be protected in accordance with from the floor of the work area to the level of exit discharge (803.1)Fire alarm and detection systems must be provided throughout the building where required by Section (Level 2).Means of egress lighting must be provided within exits from the highest work area floor to the floor of exit discharge (805.2).Exit signs must be provided from the highest work area floor to the floor of exit discharge (805.3).
110 Level 3 Alteration Chapter 8 Structural:New structural elements meet Level 2 requirementsExisting structural elements carrying gravity loads meet Level 2 requirementsStructural alterationsExcept Group R with no more than 5 units altered using light-frame construction methods of the IBCExcept when alterations are only to the lowest story and there’s no change of occupancy, only lateral-force-resisting components in and below that story need comply with the Level 3 requirementsEngineering evaluation requiredWithin a 12 month period, where more than 30 percent of the total floor and roof areas have been or are proposed, the engineering evaluation must determine if the building complies with the IBC for wind loading and the IBC level seismic forcesWithin a 12 month period, where not more than 30 percent of the total floor and roof areas have been or are proposed, the engineering evaluation must determine if the building complies with the loads applicable at the time of the original construction
111 Change of Occupancy Chapter 9 IEBCChange of Occupancy Chapter 9
112 Change of Occupancy Chapter 9 Definition - A change in the purpose or level of activity within a building that involves a change in application of the requirements of this codeAppliesWhen the building has a change in occupancy, even if the occupancy classification is not changedWhere there is a change in the occupancy classification or the occupancy group designation changes
113 Change of Occupancy Chapter 9 Where the change in use is to a special use category, the building must comply with the code for new construction (902.1)Covered mall buildingsAtriumsMotor vehicle-related occupanciesAircraft-related occupanciesMotion picture-projection roomsStages and platformsSpecial amusement buildingsIncidental use areasHazardous materialsLight and ventilation requirements must comply with the requirements of 780 CMR for the new occupancy.
114 Change of Occupancy Chapter 9 Partial Change in UseWhere not separated from the remainder of the building, the entire building must comply with Level 3 requirementsFire sprinkler, alarm & detection systems are required based on the new occupancyInterior finishes of areas that changed occupancies must meet the requirements of new construction (912.3)Hazard Categories determine what needs to be updated to new construction standards when changing occupancies.
115 Chapter 4: ‘the test’ Please put on your thinking caps… For review of 14 proposed projectsMake clarifying assumptions if you need toConfer with your neighbor if you so chooseAssign, with your best educated guess, a ‘class’ to each project; Alt 1, Alt 2, Rep, C of O, etc.You have 5 minutes!!Please keep in mind;There are no ‘wrong’ answers
116 Chapter 4 Classification Examples Project DescriptionCh 4Class?1) Removal of asphalt roof down to the sheathing & reroof w/asphalt8) Installation of exterior millwork on an historic building.2) Tenant fit-out of 6 stories of the Prudential Tower in Boston9) Restoration, replacement, & patching of clapboard siding.3) Addition of two stories to the top of a 10-story building10) Removal of a oil furnace and replacement with gas furnace4) Addition of solar panels to a 2-story steel frame building11) Condo conversion. Includes new window for each garden unit.5) 3 Unit R-2: Remove/replace plaster and lathe, electrical and insulation. Same number & location of doors and windows, but most replaced.12) Strip mall. Building A/C unit replacement with new duct work to service new tenant on end unit.6) Mill Building Conversion: F-Use to R-Use13) 6 unit R-2: Blown in cellulose insulation7) Removal of asphalt roof & reroof w/copper.14) A structurally independent horizontal addition to the BPL
117 Hazard Categories Example Means of Egress (912.4) When changing to a higher hazard category occupancy, means of egress must comply with new construction.When changing to equal or lesser occupancy hazard category:Existing egress elements must comply with Level 3 Alteration criteriaNew egress elements must meet criteria of new construction.Either way, the egress capacity must meet or exceed the requirements for new construction for the occupancy.
118 OCCUPANCY CLASSIFICATIONS OCCUPANCY CLASSIFICATION Hazard Categories Example Heights and Areas and Exposure of Exterior Walls (912.5 & 912.6)Table 912.5: When changing to a higher Hazard Category heights and areas of buildings and structures shall comply with the requirements of Chapter 5RELATIVE HAZARDOCCUPANCY CLASSIFICATIONS1 (Highest Hazard)H2A-1, A-2, A-3, A-4, I, R-1, R-2, R-43E, F-1, S-1, M4 (Lowest Hazard)B, F-2, S-2, A-5, R-3, UTable 912.6: When changing to a higher Hazard Category exterior walls shall have fire resistance and exterior opening protectives as required by the International Building Code.RELATIVE HAZARDOCCUPANCY CLASSIFICATION1 (Highest Hazard)H2F-1, M, S-13A, B, E, I, R4 (Lowest Hazard)F-2, S-2, U
120 Performance Compliance Methods Chapter 13 The design evaluation is comprised of three main categories:Fire SafetyStructural Fire ResistanceAutomatic Fire DetectionFire AlarmFire-Suppression SystemMeans of EgressConfigurationCharacteristicsSupport FeaturesGeneral SafetyFire Safety ParametersMeans of Egress Parameters
121 Example Evaluation Table Section 1301.6.17 Automatic SprinklersPoints are awarded based on the ability to suppress a fire based on the installation of automatic sprinklers per IBC Note: Sprinklers required by M.G.L. c. 148 §26G are not considered required for this section.Sprinklers are required throughout; however, not provided or not adequate for the hazard protected per IBC 903Required in a portion of the building; however, not provided or not adequate for the hazard protected per IBC 903Not required and none are providedRequired in a portion of the building, provided in compliance with code at time of construction, and maintained/supervised per IBC 903Required throughout and are provided per Chapter 9 of IBCNot required throughout but are provided per Chapter 9 of IBC
123 Evaluation – Building Safety Section 1301.9 If the building score is higher than the required score the building is compliantMixed Occupancies:If not separated per the categories in , the mandatory safety scores for the occupancy with the lowest general safety score shall be utilizedIf separated per a category in then each occupancy should be scored separately based on the appropriate occupancy
124 Thank you. QUESTIONS? DPS WEB SITE is: www.mass.gov/dps REQUIRED. This should be the last slide of your program. You can add your logo if desired.Board of Building Regulations and Standards