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Board of Building Regulations and Standards The New 8 th Edition of the Massachusetts State Building Code Tom Riley – Department of Public Safety Rob Anderson.

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Presentation on theme: "Board of Building Regulations and Standards The New 8 th Edition of the Massachusetts State Building Code Tom Riley – Department of Public Safety Rob Anderson."— Presentation transcript:

1 Board of Building Regulations and Standards The New 8 th Edition of the Massachusetts State Building Code Tom Riley – Department of Public Safety Rob Anderson – Department of Public Safety A. Vernon Woodworth, AIA, LEED AP – R.W. Sullivan Engineering

2 Board of Building Regulations and Standards 780 CMR 8 th Edition Base Code Disclaimer This presentation attempts to familiarize users with the new 8 th edition and specifically with whats changed from the 7 th 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 7 th Edition Base Code Note: The code also references other MA codes (plumbing, electrical, etc.) and I-codes* which cover mechanical and energy requirements. *Can be purchased at + Embedded MA amendments = (Sold at State bookstore)

4 Board of Building Regulations and Standards The 8 th Edition uses I-codes MA Amendments + Note: The code also references other MA codes (plumbing, electrical, etc.) 4

5 Board of Building Regulations and Standards MSBC Front-end Amendments 5

6 Board of Building Regulations and Standards Using the 8 th 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! 6

7 7 DPS Website: 7

8 DPS Website: Building Code 8

9 Board of Building Regulations and Standards DPS Website: Building Code 9

10 Board of Building Regulations and Standards Chapter 1 Administration Organization How did we get 25-sections of the 7 th chapter 1 to fit into the 16-sections of the IBC chapter 1 and keep amendments to a minimum? – Reviewed every section of the 7 th ; found its corresponding location in 8 th 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 MGLs instead. – Deleted Special Regulations language (CSL, Native Lumber, etc.); referenced chapter 110 instead. 10

11 Board of Building Regulations and Standards Chapter 1: Administration IBC sections flow with project: 101General 102Applicability 103 Dept. of Building Safety (Building Official) 104 Duties of Building Official 105Permits 106Construction Documents 107Submittal Documents 108Temporary Structures and Uses 109Fees 110Inspections 111Certificate of Occupancy 112Service Utilities -reserved 113Board of Appeals 114Violations 115Stop work order 116Unsafe Structures and Equipment scope permitting construction problems administration 11

12 Board of Building Regulations and Standards Chapter 1: Administration Key items – Townhouse 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 structures – Construction 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 through – Periodic 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. 12

13 Board of Building Regulations and Standards 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. Chapter 1: Administration Referenced Codes (101.4) 13 Specialized Codes (MGL 143 § 96 ) Plumbing 248 CMR Electrical 527CMR12 Access 521 CMR Fire Safety Code ? Fire Prevention 527 CMR Elevator 524 CMR Sheet Metal 271 CMR Fire 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 Board of Building Regulations and Standards 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 through Lowest floor in flood zones (110.3): Certification must be submitted to BO that elevation is in compliance with section before work above that elevation proceeds Temporary Occupancy (111.3): Key change is that this IBC section is not amended. Like the 7 th edition the building official has the sole authority to issue a temporary certificate. The 8 th does not require consultation with the fire official (7 th edition language). Unsafe structures (116.1) : Resurrected 6 th edition language per DFS request. 14

15 Board of Building Regulations and Standards Chapter 2: Definitions IBC definitions, some of which dont exist in the 7 th, were reviewed and retained. MA unique definitions added: Agriculture: as per MGL Agricultural, Building: Building Official: as per MGL Design Flood: as per DEP/Appendix G Design Flood Elevation: High-Rise Building: 70 for MA vs 75 feet in IBC. Jurisdiction: BBRS Night Club: Ordinance: means same as bylaw Registered Design Professional, RDP: applies to MA PEs and registered architects. Specialized Codes: Just those listed in MGL 143 § 96 Story Above Grade Plane: Temporary Emergency Uses: Temporary Overnight Shelter: 15

16 Board of Building Regulations and Standards 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. 7 th Chapter 4 Group Residences Day Care centers Limited Group Residence Detox. Facilities Group Dwelling units Moved to 8 th Chapter 3 16

17 Board of Building Regulations and Standards 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 agencys 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 MGLs cited. Summer Camps- definition added. 17

18 Board of Building Regulations and Standards Use Group A Section 303 Use Group A 6 th Edition8 th Edition A-1 Fixed seating, concert halls, theaters (with stage) Fixed seating, concert halls, theaters (no change) A-2 Banquet halls, night clubs, etc. Food and/or drink consumption: A-2nc (7 th Edition, now A-2 - night clubs) A-2r (7 th Edition, now A-2 uses other than night clubs i.e. restaurants, banquet halls, etc.) A-3 Recreation 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-4 Worship or religious assembly Indoor 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. 18

19 Board of Building Regulations and Standards Use Group B Section 304 New ambulatory health care provisions in 780 CMR 422 – Buildings 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-preservation Outpatient clinic – Buildings 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 19

20 Board of Building Regulations and Standards Use Group E Section 305 Educational – Buildings or portions thereof used by 6 or more people for educational purposes through the 12 th 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 Care – Buildings or portions thereof used for educational, supervision, or personal care services for more than 5 children older than 2½ years old 20

21 Board of Building Regulations and Standards 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 adults – Previously classified as Use Group I-2 (hospitals) in 6 th edition. 21

22 Board of Building Regulations and Standards Use Group R Section Use Group 6 th Edition8 th Edition R-1 Transient (hotel, motel, boarding house) Same R-2 Permanent with more than 2 dwelling units (apt houses, dorms) Same + Townhouses (3+ units) ** R-3 1 or 2 family dwellings, multiple single family Buildings with 2 or fewer dwelling units, or adult/child care facilities serving 5 or fewer people for less than 24hrs. * R-4 1 and 2 family detached, not more than 3 stories Residential 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 people = R-4 5 or less people = R-3 * Assisted living/ residential care occupancy thresholds: > 16 people = I people = R-4 5 or less people = R-3

23 Board of Building Regulations and Standards Chapter 4: Special Use and Occupancy 7 th Edition8 th Edition 19 Mobile Units (Formerly referred to 110 R3, 8 th in 110R3) Live/Work Units R-2, 50% non-residential,,max 5- employees. 20 Swimming Pools (Formerly in Appendix M, 8th in 3109) Groups I-1, R-1, R-2, R-3 Fire separation requirements., not special use. 21 Group Residence Hydrogen Cutoff Rooms Fuel cell related. 22 Day Care Centers Ambulatory Health Care Facilities Incapable 23 Summer Camps for Children Storm Shelters Designed to ICC – 500 criteria. 24 Bulk Merchandising 25 Limited Group ResidenceMotion Picture/Television Facilities 26 Detoxification FacilitiesSummer Camps for Children 27 Group Dwelling Units 28 Motion Picture/Television Facilities Section number changes start with section 19: Key: Red sections covered elsewhere in the 8 th Blue titles new with 8 th edition. 23

24 Board of Building Regulations and Standards 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 building High Rise (403); still Massachusetts specific: 70 feet vs 75 feet – Less 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 buildings – Occupant Evacuation Elevators ( ); IBC provisions for occupant evacuation elevators were not adopted by 780 CMR 24

25 Board of Building Regulations and Standards 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 MGLs. Hazardous materials (414 & 415); Detailed changes, including new control area approach, that are too detailed for this presentation 25

26 Board of Building Regulations and Standards High-Rise Buildings Section Fire pumps – two separate water supply connections from different streets or provide isolation valve arrangement from one street Elevator hoistway pressurization requirements have been relaxed: ) – dP = 0.10 H 2 0 min. and 0.25H 2 0 max. – 7 th Edition and 2006 IBC required 0.04 H 2 0 min. and 0.06H 2 0 max No longer required to have vestibules at smokeproof enclosure stairs that are pressurized ( Exception) 26

27 Board of Building Regulations and Standards Luminous Egress Path Markings Section High-rise buildings with Use Groups A, B, E, I, M, and R -1 Markings within exit enclosures – Steps – Landings – Handrails – Doors 27 SOURCE: American PERMALIGHT

28 Board of Building Regulations and Standards High-Rise Buildings Section Requirement> 70 ft> 120 ft FD Access> 420 ft Smoke Removal System Fire Command Center Separate Water Supply Connections for Fire Pumps Hoistway Pressurization Option Luminous Egress Path Markings Fire service access elevator ( ) –1 hour lobby w/ standpipe –Direct access to exit stair –Standby power Additional exit stairway or occupant evacuation elevator with lobby ( ) 1 No Construction Type Modification ( ) Impact resistant structural design ( ) Sprinklers – min. two risers serving alternating floors ( ) 1. Occupant Evacuation Elevator - Reserved by MA. 28

29 Board of Building Regulations and Standards Atriums Section Requires 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 atriums – Generally 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 7 th edition) 29

30 Board of Building Regulations and Standards Atriums Section 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. 30

31 Board of Building Regulations and Standards Atriums Section 404 All 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) Criteria6 th Edition7 th Edition8 th Edition Smoke Layer6 ft10 ft6 ft Fire Size2,000 Btu/s5,000 Btu/s*Subject to designer and engineering analysis Fire Scenarios OneThreeSubject to designer and engineering analysis Time20 min 1.5 times egress * Alternate Fire Protection design permitted by Chapter 9 can be used to account for sprinklers and geometry 31

32 Board of Building Regulations and Standards Example Exhaust Rates Fire modeling permitted with a third party review Variances for fire modeling are no longer required Code Exhaust Requirement (cfm) Free Area for make-up 200 ft/min (ft 2 ) 6 th Edition (2,000 Btu/s)195, th Edition (5,000 Btu/s)664,4303,320 8 th Edition (2,000 Btu/s)479,6552,400 8 th Edition w/modeling207,830600* Example 5-story atrium * Fire modeling may show make-up air > 200 ft/min is acceptable 32

33 Board of Building Regulations and Standards 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) 7 th Edition and prior versions of IBC required 2-hour floors regardless of building height 33

34 Board of Building Regulations and Standards Special Uses Chapter 4 Live/Work Units (Section 419) – Use Group R-2 – Max of 3,000 sq ft, max of 50% can be nonresidential – Non-residential area must be on first or main floor of the unit Ambulatory Health Care (Section 422) – Use Group B – 1 or more patients incapable of self preservation – Smoke compartments (if > 10,000 sq ft) – Max distance to smoke barrier door must be < 200 feet Motion Picture and Television Production Facilities (Section 425) – Standard on Motion Picture and Television Studios (NFPA 140) 34

35 Board of Building Regulations and Standards Chapter 5 General Building Heights and Areas Chapter 5 – Independent of other chapters – Controls 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. 35

36 Board of Building Regulations and Standards 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 Group7 th Edition8 th Edition Business (B)4 Stories3 Stories Mercantile (M)4 Stories2 Stories Moderate Hazard Storage (S-1)3 Stories2 Stories Low Hazard Storage (S-2)4 Stories3 Stories 36

37 Board of Building Regulations and Standards 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. per Unlimited 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. 37

38 Board of Building Regulations and Standards Accessory Areas Section Fire separation assembly not required – Not more than 10% of any fire area – Does not exceed tabular values in Table 503 Construction type and fire protection system requirements based on main use of building Areas that require a fire barrier – High Hazard (Use Group H) – Incidental Use Areas (Table ) Assembly areas that are not considered separate occupancies/ exceptions to general accessory area rules – Rooms less than 750 SF (Section Ex.3) – Accessory to Group E (Section Ex. 4) 38

39 Board of Building Regulations and Standards Accessory Areas Section Example: Office building – Type IIA Construction – Unsprinklered – No Perimeter Access Storage Use (S-1) 7,500 SF Business Use (B) 30,000 SF Total Fire Area = 37,500 SF Actual Floor Area (Main Use + Accessory) Allowable Area of Building (B) = 37,500 SF Allowable Area of Accessory Use (S-1) = 26,000 SF Storage Area is < 26,000 SF OK 10% of Total Fire Area = 3,750 SF Storage Area is > 3,750 SF NOT OK Accessory Area Does NOT Comply 39

40 Board of Building Regulations and Standards Incidental Accessory Occupancies Section Require separation/ protection per Table – Rated construction – Automatic fire-extinguishing system Only incidental accessory space must be protected Smoke resistant walls Automatic or self-closing doors – Incidental storage rooms over 100 ft 2 are no longer required to be separated by 1 hour. 40

41 Board of Building Regulations and Standards Incidental Accessory Occupancies Section

42 Board of Building Regulations and Standards Non-separated Use Groups Section No fire separation required between uses, unless required by other provisions Height and area limited by most restrictive use Fire protection systems provided throughout in accordance with most restrictive use All other requirements apply to each portion of the building based on use group 42

43 Board of Building Regulations and Standards Separated Use Groups Section Fire separation assembly required between uses when required by Table Height and area limited based on a pro-rated calculation 43 All other requirements apply to each portion of the building based on use group Sprinkler protection required based on most restrictive use of a fire area as required by Chapter 9

44 Board of Building Regulations and Standards Separated Use Groups Section

45 Board of Building Regulations and Standards Separated Use Groups Section Height and area limitations for each fire area are based on use group In each story, the sum of the ratios of the actual floor area to allowable area for each use group must not exceed one. 45

46 Board of Building Regulations and Standards Separated Buildings Section Separated by fire wall per Section Code requirements based on use group(s) and construction type of each building individually Height and area limitations apply to each building individually 46

47 Board of Building Regulations and Standards Special Provisions Section 509 Special conditions that are exempt from, or modify, the height and area requirements of Chapter 5 Horizontal building separation allowance Enclosed parking garage with open parking garage above Group R-1 & R-2 of Types IIA & IIIA Group B & M with open parking garages Multiple Buildings above parking garages 47

48 Board of Building Regulations and Standards Markings and Identification Section 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 stenciling – Required at 30 intervals horizontally FIRE AND / OR SMOKE BARRIER – PROTECT ALL OPENINGS 48

49 Board of Building Regulations and Standards Sprayed Fire-Resistance Materials Section Specifically regulates the application of SFRMs to minimize the potential for the materials to be dislodged; including: – Surface conditions – Substrate conditions – Conditions for applying to primers, paints and encapsulates Flange depth Web depth – Temperature at time of installation – Finished condition 49

50 Board of Building Regulations and Standards Exterior Walls Sections & 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

51 Board of Building Regulations and Standards Fire Protection Systems Chapter 9 51 Background: BBRS voted to carry forward 7 th edition Chapter 9 requirements and not lower level of safety from that required by 7 th edition IBC has enforcement authority language that needed to be addressed.

52 Board of Building Regulations and Standards Fire Protection Systems Chapter 9 52 Few Technical changes…If you know the 7 th then youll have a good start on the 8 th. 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 Board of Building Regulations and Standards Fire Protection Systems Chapter 9 53 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 buildings Required 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 8 th edition.

54 Board of Building Regulations and Standards Fire Protection Systems Chapter 9 54 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: 2009 (not 2005) NFPA 130, …Transit and Passenger Rail Systems: 2010 (not found in IBC) also NFPA 140, 15, and 750.

55 Board of Building Regulations and Standards Fire Protection Systems Chapter 9 55 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 tests Sprinkler 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 sprinklered Mercantile Use with upholstered furniture: sprinklered Sprinkler Standards Clarified NFPA 13R use – cannot be used in a Mixed Use building Clarified that townhouses require fire sprinkler protection 13R 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 distractions Use Group E fire alarm system( ): requires voice capabilities Smoke alarms( ): must be photoelectric type Sleeping 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 8 th edition (like the 7 th edition) for the most part requires manual pull stations. Independent third party review (909.2): required for performance-based smoke control systems

56 Board of Building Regulations and Standards Fire Command Center Section Min area of fire command center is 200 SF Min dimension in any direction is 10 ft. 1 hour rated room Location subject to the approval of the Fire Department 56

57 Board of Building Regulations and Standards Smoke Control System Smoke control design based on an engineering analysis using NFPA 92B (909.8) Smoke layer height reduced to 6 ( ) Computer Fire Modeling CodeExhaust Requirement (cfm) 6 th Edition: Axisymmetric *195,930 Code Exhaust Requirement (cfm) 2,000 Btu/s5,000 Btu/s 8th Edition: Axisymmetric207,830*299,850** 8th Edition: 20' Wide Balcony Spill479,655664,430 8th Edition: Window Spill Plume187,695203,185 8th Edition479,655664,430 57

58 Board of Building Regulations and Standards Means of Egress Chapter 10 MA-unique requirements of 7 th & 8 th 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. 58

59 Board of Building Regulations and Standards Means of Egress Chapter 10 Differences between the 7 th and 8 th : Minimum egress dimensions (1005.1): 7 th 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. 59

60 Board of Building Regulations and Standards Occupant Load Table Occupant Load Table has additional uses and some factors have changed – 780 CMR Table (6 th Edition) Occupancy6 th Edition7 th /8 th Edition Dormitory200 gross50 gross Assembly Standing3 net5 net Assembly Gaming?11 gross Day Care?35 net Exercise Rooms?50 gross Kitchens?200 gross Stages & Platforms?15 net 60

61 Board of Building Regulations and Standards Egress Capacity Section Egress capacity factors are as follows (other than H and I-2): BuildingComponent 6 th and 7 th Editions (Inches / occupant) 8 th Edition (Inches / occupant) Not Sprinklered Stairways0.3 Other Components 0.2 Sprinklered Stairways Other Components Sprinklered and Voice Alarm Communication System - Except H & I-2 (MA Amend.) Stairways0.2 Other Components

62 Board of Building Regulations and Standards Panic Hardware Section 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 hardware – Required in 7 th edition for Group H or 100 occupants in Groups A or E 62

63 Board of Building Regulations and Standards Gates Section If used as a component in a means of egress, must comply with door requirements – Door clearance requirements – Landing on both sides of gate 63

64 Board of Building Regulations and Standards Required Locations for Guards Section Requirements for guards are now determined based on the lowest grade point measured vertically from within a horizontal 36-inch radius from the walking surface Source: ICC

65 Board of Building Regulations and Standards Minimum Guard Height at Fixed Seating Section 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

66 Board of Building Regulations and Standards Single Means of Egress Section & Use Group R-2 – Occupant 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) – 7 th Edition limit was 50 people (1,000 sq. ft.) 66

67 Board of Building Regulations and Standards Dead Ends Section 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 67

68 Board of Building Regulations and Standards Open Egress Stairs Section & 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. 68

69 Board of Building Regulations and Standards Energy Efficiency Chapter 13 Overview What is the Same? Technical and administrative MA Amendments. ASHRAE remains the default design option. What is different? Format and Section numbering No new major requirements; The devil is in the details… 69

70 Board of Building Regulations and Standards Energy Efficiency Chapter 13 Changes and noted issues : MA Amendments; No technical/administrative differences between 7 th & 8 th Edition. Technical differences ; are between IECC-2006 w/2007 Supplement and IECC Format/Section numbering changes; exist between IECC-2009 and earlier variant. ASHRAE (C1); remains the default design option. Administrative criteria (C1); C1 of the 8 th overrides the admin. criteria of C1 of IECC 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

71 Board of Building Regulations and Standards 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. 71

72 Board of Building Regulations and Standards Energy Code – Additions, renovations, and repairs to an existing building must conform to the code for new construction, without requiring the unaltered portion of the building to comply – If the energy use of the building is not increased the following need not comply: Storm windows Glass only replacements in existing sash and frame (unless required elsewhere in IEBC) Existing ceiling, wall, and floor cavities exposed during construction – if filled with insulation Construction where existing roof, wall or floor cavity is not exposed 72

73 Board of Building Regulations and Standards CHAPTER 115 AA Stretch Energy Code Overview The 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. 73

74 Board of Building Regulations and Standards Structural Design Chapter 16 What is the same in the 7 th and 8 th ? – Unique Snow and Wind loads – Seismic coefficients same as IBC but values in Table of ASCE 7 have been amended by MA. – Unreinforced Masonry (URM) not allowed – Snow Drift Geometries go beyond ASCE-7 – Some analysis methods not permitted SAC* feels these will disappear from the national code soon. *Structural Advisory Committee – ASCE edition still in play Town Houses (3 or less stories) Structural will be in the 8 th 1&2. 74

75 Board of Building Regulations and Standards Structural Tests and Special Inspections Chapter 17 7 th Edition Unique Chapter 17 Key Points: – Required a Quality Assurance Plan that was the responsibility of the Registered Design Professional 8 th 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 IBC Submit a Test and Inspection Plan Submit a Final Test and Inspection Report, prior to C of O. 75

76 Board of Building Regulations and Standards 8 th 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 76 Structural Tests and Special Inspections Chapter 17

77 Board of Building Regulations and Standards Chapter 18 Soils and Foundations This chapter is heavy with MA amendments – Essentially functions like 7 th – Broad coverage of various soil types and conditions MA 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; or – For structures used for agricultural purposes. 77

78 Board of Building Regulations and Standards 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 – 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. 78

79 Board of Building Regulations and Standards Special Construction Chapter 31 7 th Edition amendments are carried into the 8 th Edition. MA amendments now also include: – Temporary Overnight shelters for the homeless. – Temporary Emergency Use of buildings in times of public emergencies. 79

80 Board of Building Regulations and Standards Pedestrian Walkways Section th & 8 th Editions clarifies that pedestrian walkways can be at grade – 6 th edition only mentioned elevated walkways 2-hr separation at connections extending 10 ft in all directions – Exception – Both buildings and the walkway are fully sprinklered and the building are more than 10 ft apart Limited to 30 ft in width Only materials approved by the building official inside 80

81 Board of Building Regulations and Standards Introduction to the International Existing Building Code Tom Riley – Department of Public Safety Rob Anderson – Department of Public Safety A. Vernon Woodworth, AIA, LEED AP

82 Board of Building Regulations and Standards Existing Buildings Chapter 34 Use IEBC 2009, w/MA amendments. IEBC approaches include: 1.Prescriptive method (Chapter 3) 2.Work area method (Chapters 4 to 12): a.Repairs, Alterations: Levels 1, 2, and 3 or b.Change of occupancy, Additions, Historic Buildings, or Relocated Buildings 3.Performance method (Chapter 13) but with peer review option for Building Official 82

83 Board of Building Regulations and Standards 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 section Scope (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 83 IEBC Fire Protection Requirements

84 Board of Building Regulations and Standards 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) 84

85 Board of Building Regulations and Standards 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 requirements – Supplemental fire alarm system requirements. – Smoke alarms 85

86 Board of Building Regulations and Standards 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 buildings – Rubbish 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 86

87 Board of Building Regulations and Standards MA Egress Amendment IEBC MA Amendment Section 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: 1)The minimum number of exits 2)Required egress capacity 87

88 Board of Building Regulations and Standards Sprinklers in Existing Buildings IEBC MA Amendment Section Reference to the amended MGL c.148 Section 26G – All buildings over 7,500 gsf undergoing addition or major renovation Building size determined irrespective of the existence of interior fire resistive walls Exceptions: open parking structures, residential buildings & state owned facilities – Applies throughout the state – Enforced by fire official independent of building code 88

89 Board of Building Regulations and Standards IEBC Key Structural Amendments 6 th and 7 th edition Essential Elements brought forward – Investigation and Evaluation ( ) Required for Construction Control projects – Table 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 6 th edition. (IEBC is a fixed 75%) 89

90 Board of Building Regulations and Standards 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) 90

91 Board of Building Regulations and Standards 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 ratios Relief provided on structural triggers on reroofing ( ) – Raised trigger to >105 mph (was > 90 mph) Note this will include much of greater Boston – Only in cases of complete reroofing (was >50%) 91 IEBC Key Structural Amendments (cont.)

92 Board of Building Regulations and Standards Relief provided on vertical additions. IEBC requires compliance to full seismic. ( ) – Amendment allows for reduced seismic – However, no relief on horizontal additions Modified Appendix A1 to assign prescribed values of certain masonry properties without testing. ( appendix A1) IEBC wind loads requirements not changed. 92 IEBC Key Structural Amendments (cont.)

93 Board of Building Regulations and Standards Risk Abatement Analyzed typical existing building projects / these sample projects will be placed on the DPS web site during February – Completed these (others pending): Solar Panel Installation (2 different projects) Mill Building B and S-Use Renovation Conversion of Warehouse of B-Use to Residential Elevator Installation Modernization of an Apartment Building Tenant Improvement Three Family Energy Upgrade Condo Complex Window Replacement Row Building In general, IEBC is consistent with past practice. 93

94 Board of Building Regulations and Standards Three Compliance Methods 94 The method is the choice of the owner. The three methods are independent. Work Area Method may have some dependency between chapters.

95 Board of Building Regulations and Standards 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 requirements – Intended for newer buildings – Requires full compliance with IBC Structural requirements Work 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 projects Regardless of which option is chosen, IEBC Chapter 1 always applies and contains many unique MA amendments (i.e. structural systems, egress, fire protection, etc). 95

96 Board of Building Regulations and Standards Existing Building Reports IEBC MA Amendment Section 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 loads Lateral load capacity Egress Capacity Fire protection systems Fire resistive construction Interior environment Hazardous materials Energy conservation A written report must be submitted to the building official as a condition of the issuance of a building permit. 96

97 Board of Building Regulations and Standards IEBC Prescriptive Compliance Method Chapter 3 97

98 Board of Building Regulations and Standards 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: – Additions – Alterations – Repairs – Fire escapes – Change of Occupancy – Historic Buildings – Moved Structures 98

99 Board of Building Regulations and Standards Prescriptive Compliance Method Section – 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. The capacity of the structural member is reduced. 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. 99

100 Board of Building Regulations and Standards IEBC Work Area Method Chapters 4 –

101 Board of Building Regulations and Standards Work Area Compliance Chapters Provisions are based on the type of work as defined in Chapter 4 – Repairs (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 spaces Addition or elimination of windows or doors Installation of any additional equipment Renovation 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) 101

102 Board of Building Regulations and Standards Work Area Defined 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. 102

103 Board of Building Regulations and Standards Repairs Chapter 5 Non-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 Repairs Egress capacity Exit signage and lighting Unsafe or dangerous conditions – Structural Repairs Extent of damage determines the loads to be used for design of repaired building In some cases, repairs can meet The code for construction that was in effect at the time the building was constructed The reduced loads table, Table (unique to MA) The code for new construction – Delete Electric and Plumbing Requirements 103

104 Board of Building Regulations and Standards 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 sprinklers Structural upgrades could include: – Gravity members if dead load increased by > 5% – Anchoring / bracing of masonry / concrete walls – Roof diaphragms and connections to resist wind loads 104

105 Board of Building Regulations and Standards 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 construction – The entire area is open and unobstructed (with limitations) – Use Group specific allowances for rating reductions or allowed floor openings – Existing vertical openings up to 3 stories are permitted in fully sprinklered buildings of Use Group B, E, F, M, R- 1, R-2, S 105 Level 2 Alteration Chapter 7

106 Board of Building Regulations and Standards 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 106 Level 2 Alteration Floor Openings (703.2)

107 Board of Building Regulations and Standards 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 finishes Automatic 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 occupants – The work area exceeds 50% of the floor area – The water supply is sufficient – 780 CMR requires it Fire 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 floor In 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 ( ) 107

108 Board of Building Regulations and Standards Structural: – New structural members, meet code for new construction – Alterations not resulting in supporting additional loads can use the loads applicable at the time the building was constructed as the minimum design loads – Gravity load requirements Exception: Since original construction, structural elements whose stress is not increased by more than 5 percent – Lateral load requirements apply when the alteration is considered more than 10 percent greater than its demand-capacity ratio with the alteration ignored – Voluntary lateral-force-resisting alterations Not required to comply with forces in IBC provided that an engineering analysis complies with 4 conditions 108 Level 2 Alteration Chapter 7

109 Board of Building Regulations and Standards 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). 109

110 Board of Building Regulations and Standards Structural: – New structural elements meet Level 2 requirements – Existing structural elements carrying gravity loads meet Level 2 requirements – Structural alterations Except Group R with no more than 5 units altered using light-frame construction methods of the IBC Except when alterations are only to the lowest story and theres no change of occupancy, only lateral-force-resisting components in and below that story need comply with the Level 3 requirements – Engineering evaluation required – Within 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 forces – Within 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 110 Level 3 Alteration Chapter 8

111 Board of Building Regulations and Standards IEBC Change of Occupancy Chapter 9 111

112 Board of Building Regulations and Standards Definition - A change in the purpose or level of activity within a building that involves a change in application of the requirements of this code Applies When the building has a change in occupancy, even if the occupancy classification is not changed Where there is a change in the occupancy classification or the occupancy group designation changes 112 Change of Occupancy Chapter 9

113 Board of Building Regulations and Standards 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 buildings Atriums Motor vehicle-related occupancies Aircraft-related occupancies Motion picture-projection rooms Stages and platforms Special amusement buildings Incidental use areas Hazardous materials Light and ventilation requirements must comply with the requirements of 780 CMR for the new occupancy. 113

114 Board of Building Regulations and Standards Change of Occupancy Chapter 9 Partial Change in Use Where not separated from the remainder of the building, the entire building must comply with Level 3 requirements Fire sprinkler, alarm & detection systems are required based on the new occupancy Interior 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. 114

115 Board of Building Regulations and Standards Chapter 4: the test Please put on your thinking caps… For review of 14 proposed projects – Make clarifying assumptions if you need to – Confer with your neighbor if you so choose – Assign, 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 115

116 116 Chapter 4 Classification Examples Project Description Ch 4 Class? Project Description Ch 4 Class? 1) Removal of asphalt roof down to the sheathing & reroof w/asphalt 8) Installation of exterior millwork on an historic building. 2) Tenant fit-out of 6 stories of the Prudential Tower in Boston 9) Restoration, replacement, & patching of clapboard siding. 3) Addition of two stories to the top of a 10-story building 10) Removal of a oil furnace and replacement with gas furnace 4) Addition of solar panels to a 2-story steel frame building 11) 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-Use 13) 6 unit R-2: Blown in cellulose insulation 7) Removal of asphalt roof & reroof w/copper. 14) A structurally independent horizontal addition to the BPL 116

117 Board of Building Regulations and Standards 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 criteria – New 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. 117

118 Board of Building Regulations and Standards 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 RELATIVE HAZARDOCCUPANCY CLASSIFICATIONS 1 (Highest Hazard)H 2A-1, A-2, A-3, A-4, I, R-1, R-2, R-4 3E, F-1, S-1, M 4 (Lowest Hazard)B, F-2, S-2, A-5, R-3, U RELATIVE HAZARDOCCUPANCY CLASSIFICATION 1 (Highest Hazard)H 2F-1, M, S-1 3A, B, E, I, R 4 (Lowest Hazard)F-2, S-2, U Table 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.

119 Board of Building Regulations and Standards IEBC Performance Compliance Methods Administration 119

120 Board of Building Regulations and Standards Performance Compliance Methods Chapter 13 The design evaluation is comprised of three main categories: – Fire Safety Structural Fire Resistance Automatic Fire Detection Fire Alarm Fire-Suppression System – Means of Egress Configuration Characteristics Support Features – General Safety Fire Safety Parameters Means of Egress Parameters 120

121 Board of Building Regulations and Standards Example Evaluation Table Section Automatic Sprinklers Points 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. A.Sprinklers are required throughout; however, not provided or not adequate for the hazard protected per IBC 903 B.Required in a portion of the building; however, not provided or not adequate for the hazard protected per IBC 903 C.Not required and none are provided D.Required in a portion of the building, provided in compliance with code at time of construction, and maintained/supervised per IBC 903 E.Required throughout and are provided per Chapter 9 of IBC F.Not required throughout but are provided per Chapter 9 of IBC 121

122 Board of Building Regulations and Standards Evaluation – Safety Scores Section

123 Board of Building Regulations and Standards Evaluation – Building Safety Section If the building score is higher than the required score the building is compliant 123 Mixed Occupancies: If not separated per the categories in , the mandatory safety scores for the occupancy with the lowest general safety score shall be utilized If separated per a category in then each occupancy should be scored separately based on the appropriate occupancy

124 124 Thank you. QUESTIONS? DPS WEB SITE is: 124 Board of Building Regulations and Standards


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