8th Edition Base Code What's New?

Board of Building Regulations and Standards

The New 8th Edition of the Massachusetts State Building Code

Tom Riley – Department of Public SafetyRob Anderson – Department of Public Safety

A. Vernon Woodworth, AIA, LEED AP – R.W. Sullivan Engineering


780 CMR 8th Edition Base Code

Disclaimer• This 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.

The 7th 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 www.iccsafe.org

+ EmbeddedMA

amendments = (Sold at State bookstore)

http://www.iccsafe.org/

http://www.iccsafe.org/Store/Pages/Product.aspx?category=0&cat=ICCSafe&id=3000X03

http://www.iccsafe.org/Store/Pages/Product.aspx?category=0&cat=ICCSafe&id=3800X06


The 8th Edition uses I-codes

MA Amendments+

Note: The code also references other MA codes (plumbing, electrical, etc.)

4


MSBC• Front-end Amendments

5


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 502.4.3 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 502.4.3 has been amended!

6

7

DPS Website: www.mass.gov/dps

7

http://www.mass.gov/dps

DPS Website: Building Code

8


DPS Website: Building Code

9


Chapter 1 AdministrationOrganization• How 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.

10


Chapter 1: AdministrationIBC sections flow with project:

101 General102 Applicability103 Dept. of Building Safety (Building Official)104 Duties of Building Official105 Permits106 Construction Documents107 Submittal Documents108 Temporary Structures and Uses109 Fees110 Inspections111 Certificate of Occupancy112 Service Utilities -reserved113 Board of Appeals114 Violations115 Stop work order116 Unsafe Structures and Equipment

scope

permitting

construction

problems

administration

11


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 110.3.1 through 110.3.10– 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


•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: AdministrationReferenced Codes (101.4)

13

Specialized Codes(MGL 143 § 96)

Plumbing 248 CMRElectrical 527CMR12Access 521 CMRFire Safety Code ?Fire Prevention 527 CMRElevator 524 CMRSheet Metal 271 CMR

•Fire Prevention (101.4.5): 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.


Chapter 1: AdministrationOther items of note:• DDS Facilities (102.2.1): 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 (107.1.1): Allowed, see DPL website: www.mass.gov/dpl• Inspection intervals (110.3) : The building official shall conduct inspections…which

may include inspections set forth in Sections 110.3.1 through 110.3.10.• Lowest floor in flood zones (110.3): Certification must be submitted to BO that

elevation is in compliance with section 1612.5 before work above that elevation proceeds

• Temporary 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.

14

http://www.mass.gov/dpl


Chapter 2: DefinitionsIBC definitions, some of which don’t exist in the 7th,

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 PE’s and registered architects.◦ Specialized Codes: Just those listed in MGL 143 § 96◦ Story Above Grade Plane: ◦ Temporary Emergency Uses:◦ Temporary Overnight Shelter:

15


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.

7th Chapter 4

•Group Residences•Day Care centers•Limited Group Residence•Detox. Facilities•Group Dwelling units

Moved to 8th Chapter 3

16


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 (308.5.2): 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.

17


Use Group ASection 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-2 Banquet 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-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-5 Outdoor assembly Outdoor assembly (no change)** Assembly areas that are accessory to Use Group E are not considered separate occupancies (i.e. gymnasium, cafeteria, auditorium) per Section 303.1 Exception 4.

18


Use Group BSection 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


Use Group ESection 305

• Educational– 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 Care– Buildings or portions thereof used for

educational, supervision, or personal care services for more than 5 children older than 2½ years old

20


Use Group ISection 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 6th edition.

21


Use Group RSection 310

22

Use Group 6th Edition 8th 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-5 Limited group residences No 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


Chapter 4: Special Use and Occupancy

7th Edition 8th Edition

19 Mobile Units (Formerly referred to 110 R3, 8th 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 Bulk Merchandising

25 Limited Group Residence Motion Picture/Television Facilities

26 Detoxification Facilities Summer 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 8th

Blue titles new with 8th edition.

23


Chapter 4: Special Use and OccupancyChanges 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 101.4.5).• Fire department review; fire department must review/approve permit submittals (see

107.1.2).• Mall Buildings (402); now also applies to Open Mall Buildings (402.2).

– Open perimeter (402.6.1); Option to reduce from 60-foot minimum in certain cases. – Garages (402.7.1);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 (403.2.1); 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 (403.3.1); minimum of 2 fire sprinkler risers located remote from each other. Adjacent floors cannot be supplied by the same sprinkler riser.

– Redundant water supplies (403.3.2); required for fire pump installations.– 2-way radios (403.4.4) ; must have equipment so that fire department radios are functional.– Venting smoke (403.4.6); must have means of venting smoke from building after fire.– Stairs remoteness (403.5.1); increased for exit stairs, scissor stairs considered one exit.– Additional stairway (403.5.2); required for buildings greater than420 feet.– Luminous markings (403.5.5); required in the exit enclosures to highlight egress paths.– Fire Service Elevators (403.6.1); required in all high-rise buildings– Occupant Evacuation Elevators (403.6.2); IBC provisions for occupant evacuation elevators were not adopted by

780 CMR

24


Chapter 4: Special Use and Occupancy

• Parking garages (406)– Vehicle barrier height (406.2.4); requirement increased to 2-feet 9-

inches from 2-feet due to increase in average vehicle size.– Open wall space (406.3.3.1)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

25


High-Rise BuildingsSection 403.0

• 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:708.14.2.1)– dP = 0.10” H20 min. and 0.25”H20 max.

– 7th Edition and 2006 IBC required 0.04” H20 min. and 0.06”H20 max

• No longer required to have vestibules at smokeproof enclosure stairs that are pressurized (1022.9.2 Exception)

26


Luminous Egress Path MarkingsSection 1024.0

• 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


High-Rise BuildingsSection 403.0

Requirement > 70 ft > 120 ft FD Access > 420 ftSmoke Removal System Fire Command Center Separate Water Supply Connections for Fire Pumps

Hoistway Pressurization Option Luminous Egress Path Markings Fire service access elevator (403.6.1)–1 hour lobby w/ standpipe–Direct access to exit stair–Standby power

Additional exit stairway or occupant evacuation elevator with lobby (403.5.2)1

No Construction Type Modification (403.2.1) Impact resistant structural design (403.2.3) Sprinklers – min. two risers serving alternating floors (403.3.1)

1. Occupant Evacuation Elevator - Reserved by MA.

28


AtriumsSection 404.3

• 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 7th edition)

29


AtriumsSection 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.

30


AtriumsSection 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)

Criteria 6th Edition 7th Edition 8th EditionSmoke Layer 6 ft 10 ft 6 ft

Fire Size 2,000 Btu/s 5,000 Btu/s* Subject to designer and engineering analysis

Fire Scenarios

One Three Subject to designer and engineering analysis

Time 20 min 20 min 1.5 times egress

* Alternate Fire Protection design permitted by Chapter 9 can be used to account for sprinklers and geometry

31


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 air @ 200 ft/min

(ft2)6th Edition (2,000 Btu/s) 195,930 980

7th Edition (5,000 Btu/s) 664,430 3,320

8th Edition (2,000 Btu/s) 479,655 2,400

8th Edition w/modeling 207,830 600*

Example 5-story atrium

* Fire modeling may show make-up air > 200 ft/min is acceptable

32


HazMat Control AreasSection 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 (414.2.4 exception)

• 7th Edition and prior versions of IBC required 2-hour floors regardless of building height

33


Special UsesChapter 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


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 (503.1.1) are exempt from Chapter 5 requirements.

• Hospital construction (503.1.3.1)– 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


General Building Heights & AreasChapter 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 Group 7th Edition 8th Edition

Business (B) 4 Stories 3 Stories

Mercantile (M) 4 Stories 2 Stories

Moderate Hazard Storage (S-1) 3 Stories 2 Stories

Low Hazard Storage (S-2) 4 Stories 3 Stories

36


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 903.3.1.1.

• 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


Accessory AreasSection 508.2

• 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 508.2.5)

• Assembly areas that are not considered separate occupancies/ exceptions to general accessory area rules– Rooms less than 750 SF (Section 303.1 Ex.3)– Accessory to Group E (Section 303.1 Ex. 4)

38


Accessory AreasSection 508.2

• 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 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 OK

10% of Total Fire Area = 3,750 SFStorage Area is > 3,750 SF NOT OK

Accessory Area Does NOT Comply

39


Incidental Accessory OccupanciesSection 508.2

• Require separation/ protection per Table 508.2.5– 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 ft2 are no longer required to be separated by 1 hour.

40


Incidental Accessory Occupancies

Section 508.2.5

41


Non-separated Use GroupsSection 508.3

• 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


Separated Use GroupsSection 508.4

• Fire separation assembly required between uses when required by Table 508.4

• 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 mostrestrictive use of a fire area as required by Chapter 9



44



• 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


Separated BuildingsSection 503.1.2

• Separated by fire wall per Section 706.1• Code requirements based on use group(s) and

construction type of each building individually• Height and area limitations apply to each building

individually

46


Special ProvisionsSection 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


Markings and IdentificationSection 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 stenciling– Required at 30’ intervals horizontally

• “FIRE AND / OR SMOKE BARRIER – PROTECT ALL OPENINGS”

48


Sprayed Fire-Resistance MaterialsSection 704.13

• 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


Exterior WallsSections 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

50


Fire Protection SystemsChapter 9

51

Background:• BBRS voted to carry forward 7th edition Chapter 9 requirements and not lower level of safety from that required by 7th edition

• IBC has ‘enforcement authority’ language that needed to be addressed.



•

52

•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

• 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 8th edition.



•

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

Changes and noted issues:Submittals (107.1.2): 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 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 (903.3.1.2.1)

A-2 Nightclub fire alarm activation(907.2.1.2) : illuminate egress; bring house lights to full; stop audible/visible distractionsUse Group E fire alarm system(907.2.3): requires voice capabilitiesSmoke alarms(907.2.11): must be photoelectric typeSleeping areas in non-R Use (907.2.24): 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


Fire Command CenterSection 911.0

• 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


Smoke Control System• Smoke control design based on an engineering analysis using

NFPA 92B (909.8)• Smoke layer height reduced to 6’ (909.8.1)• Computer Fire Modeling

Code Exhaust Requirement (cfm)6th Edition: Axisymmetric * 195,930

CodeExhaust Requirement (cfm)2,000 Btu/s 5,000 Btu/s

8th Edition: Axisymmetric 207,830* 299,850**

8th Edition: 20' Wide Balcony Spill 479,655 664,430

8th Edition: Window Spill Plume 187,695 203,185

8th Edition 479,655 664,430

57


Means of EgressChapter 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.

58


Means of EgressChapter 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 (1011.1.1) : 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, (1028.2 EXCEPTION): For nightclubs w/50 or more occupants, this Exception allowing distributed exits is overridden by the primary main exit requirements for nightclubs .

59


Occupant LoadTable 1004.1.1

• Occupant Load Table has additional uses and some factors have changed

– 780 CMR Table 1008.1.2 (6th Edition)

Occupancy 6th Edition 7th/8th EditionDormitory 200 gross 50 gross

Assembly Standing 3 net 5 net

Assembly Gaming ? 11 gross

Day Care ? 35 net

Exercise Rooms ? 50 gross

Kitchens ? 200 gross

Stages & Platforms ? 15 net

60


Egress CapacitySection 1005.1

• Egress capacity factors are as follows (other than H and I-2):

Building Component

6th and 7th Editions (Inches /

occupant)

8th Edition(Inches / occupant)

Not SprinkleredStairways 0.3 0.3

Other Components

0.2 0.2

SprinkleredStairways 0.2 0.3

Other Components

0.15 0.2

Sprinklered and Voice Alarm Communication

System - Except H & I-2 (MA Amend.)

Stairways 0.2 0.2

Other Components

0.15 0.15

61


Panic HardwareSection 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 hardware

– Required in 7th edition for Group H or 100 occupants in Groups A or E

62


GatesSection 1008.2

• 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


Required Locations for GuardsSection 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 surface

Source: ICC 2009

64


Minimum Guard Height at Fixed SeatingSection 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

65


Single Means of EgressSection 1014.3 &1015.1

• 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. ft. @ 35 sq. ft. per occupant)

– 7th Edition limit was 50 people (1,000 sq. ft.)

66


Dead EndsSection 1018.4

• 50 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


Open Egress StairsSection 1022.1 & 1016.1

• 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.

68


Energy EfficiencyChapter 13

Overview• What is the Same?

• Technical and administrative MA Amendments. • ASHRAE 90.1-2007 remains the default design option.

• What is different?• Format and Section numbering • No new major requirements; The devil is in the details…

69



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 90.1-2007(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 (T402.1.1 and T402.1.3); several numerical changes to R or U

Factors.• Optional air leak testing (402.4.1); 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 (T502.1.2 & 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.

70



• HVAC equipment performance requirements ( 503.2.3); the EXCEPTION, now in more detail, addresses water-cooled centrifugal water chilling packages not designed for operation at ARHI Standard conditions.

• Chiller efficiency (T503.2.3(7)); updated efficiency requirements.• Snow melt systems (503.2.4.5); requires auto shutoff controls for heated pavements.• Pipe insulation (T503.2.8); has slightly more conservative pipe insulation thicknesses than

earlier table versions.• Air systems (503.2.10): inclusive, addresses air system design and control.• Hydronic pump system (503.4.3.3); “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 (505.5.1); EXCEPTIONS have been expanded.• Exterior light zones (T505.6.2(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


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


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


Structural DesignChapter 16

• What is the same in the 7th and 8th? – Unique Snow and Wind loads– Seismic coefficients same as IBC but values in Table

12.2-1 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-7 2005 edition still in play• Town Houses (3 or less stories) Structural will be

in the 8th 1&2.

74


Structural Tests and Special InspectionsChapter 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 IBC• Submit a Test and Inspection Plan• Submit a Final Test and Inspection Report, prior to C of O.

75


• 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

76

Structural Tests and Special InspectionsChapter 17


Chapter 18 Soils and Foundations

• This chapter is heavy with MA amendments– Essentially functions like 7th – 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


Special ConstructionChapter 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.

78


Special ConstructionChapter 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.

79


Pedestrian WalkwaysSection 3104.0

• 7th & 8th Editions clarifies that pedestrian walkways can be at grade – 6th 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


Introduction to the International Existing

Building CodeTom Riley – Department of Public Safety

Rob Anderson – Department of Public SafetyA. Vernon Woodworth, AIA, LEED AP


Existing BuildingsChapter 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 orb. Change of occupancy, Additions, Historic Buildings, or

Relocated Buildings

3. Performance method (Chapter 13) but with peer review option for Building Official

82


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, 704.1.2, 804.1): Automatic sprinkler systems may be required

in building undergoing major alterations per section 102.2.1.1. • 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 (704.1.1): 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 704.2.1 through 704.2.5. Installation requirements shall be in accordance with the IBC.

– 704.2.1-High Rises, – 704.2.2-A, B, E, F, etc. and mixed uses, (MA amendment exception pertains to R-2 of three units)– 704.2.3- Windowless stories,– 704.2.4- Other suppression systems,– 704.2.5- Supervision

83

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



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 704.4.1 through 704.4.3. Where automatic sprinkler protection is provided in accordance with Section 704.2 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.

– 704.4.1- Occupancy requirements – 704.4.2- Supplemental fire alarm system requirements.– 704.4.3- Smoke alarms

85



Section References:• Automatic sprinkler systems (804.1): Automatic sprinkler systems shall be provided in all

work areas when required by Section 704.2 or this section.– 804.1.1- High-rise buildings– 804.1.2- Rubbish and linen chutes

• - Fire alarm and detection systems (804.2): Fire alarm and detection systems complying with Sections 704.4.1 and 704.4.3 shall be provided throughout the building in accordance with the IBC.

– 804.2.1- Manual fire alarm systems (MA amendment deletes Exception 2)– 804.2.2- Automatic fire detection

86


MA Egress AmendmentIEBC 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:

1) The minimum number of exits 2) Required egress capacity

87


Sprinklers in Existing BuildingsIEBC MA Amendment Section 102.2.1.2

• 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


IEBC Key ‘Structural’ Amendments

• 6th and 7th edition ‘Essential Elements’ brought forward– Investigation and Evaluation (101.5.4.0)

• Required for ‘Construction Control’ projects

– Table of ‘Basic Seismic Force Resisting Systems’(101.5.4.1)

– Reduced level of seismic forces permitted for certain projects (101.5.4.2)

• Modified ‘reduced seismic level force’ requirement to be consistent with the 6th edition. (IEBC is a fixed 75%)

89


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


• Modified parapet bracing requirement to include Seismic zones B and C. (606.3.1)

– 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 (606.3.2)

– 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



• Relief provided on vertical additions. IEBC requires compliance to ‘full seismic’. (1003.3.1)

– 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



Risk Abatement• Analyzed 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 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


Three Compliance Methods

94

Chapters Subjects 1-2 Administrative Requirement and Definitions 3 Prescriptive Compliance Method

4-12 Work Area Compliance Method 4 Classification of Work 5 Repairs 6 Alterations: Level 1 7 Alterations: Level 2 8 Alterations: Level 3 9 Change of Occupancy

10 Additions 11 Historic Buildings 12 Moved or Relocated Buildings 13 Performance Compliance Method

The methodis the choice of the owner.

The three methods areindependent.

Work Area Method may have some

dependency between chapters.


Compliance MethodsThree 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


Existing Building ReportsIEBC MA Amendment Section 101.5.4.0

• 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


IEBCPrescriptive Compliance

MethodChapter 3

97


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


Prescriptive Compliance MethodSection 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.• 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


IEBCWork Area Method

Chapters 4 – 12

100


Work Area ComplianceChapters 4 - 12

• 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


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.

102


RepairsChapter 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 101.5.4.1.0 (unique to MA)• The code for new construction

– Delete Electric and Plumbing Requirements

103


Level 1 AlterationChapter 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


• 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



• Additional Requirements (703.2.2):• If work area exceeds 50% of the floor area, then

all vertical openings other than stairways must comply with 703.2.1 (applies outside work area)• Does not include vertical openings in tenant

spaces completely outside the scope of work.

• Stairway Enclosure Requirements (703.2.3):• 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 AlterationFloor Openings (703.2)



• 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 (705.4-6)• Egress lighting and exit signs are required in work areas (705.7-8)

107


• 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




• Compliance with Level 1 and 2 work required (801.2)

• Existing shafts and vertical openings must be protected in accordance with 703.2.1 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 704.4 (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


• 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 there’s 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



IEBCChange of Occupancy

Chapter 9

111


• 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 OccupancyChapter 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



• 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


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

Chapter 4 Classification Examples

Project Description

Ch 4Class?

Project Description

Ch 4Class?

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


Hazard Categories ExampleMeans 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


Hazard Categories ExampleHeights 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 5

118

RELATIVE HAZARD OCCUPANCY CLASSIFICATIONS1 (Highest Hazard) H

2 A-1, A-2, A-3, A-4, I, R-1, R-2, R-43 E, F-1, S-1, M

4 (Lowest Hazard) B, F-2, S-2, A-5, R-3, U

RELATIVE HAZARD OCCUPANCY CLASSIFICATION1 (Highest Hazard) H

2 F-1, M, S-13 A, 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.


IEBCPerformance Compliance

MethodsAdministration

119


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


Example Evaluation TableSection 1301.6.17

Automatic SprinklersPoints are awarded based on the ability to suppress a fire based on the installation of automatic sprinklers per IBC 903.3.1.1. 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 providedD. Required in a portion of the building, provided in compliance with code at

time of construction, and maintained/supervised per IBC 903E. Required throughout and are provided per Chapter 9 of IBCF. Not required throughout but are provided per Chapter 9 of IBC

121


Evaluation – Safety ScoresSection 1301.8

122


Evaluation – Building SafetySection 1301.9

• If the building score is higher than the required score the building is compliant

123

Mixed Occupancies:• If not separated per the categories in 1301.6.16, the

mandatory safety scores for the occupancy with the lowest general safety score shall be utilized

• If separated per a category in 1301.6.16 then each occupancy should be scored separately based on the appropriate occupancy

124

Thank you.QUESTIONS?

DPS WEB SITE is:www.mass.gov/dps

124


8th Edition Base Code What's New?

Documents

Transcript of 8th Edition Base Code What's New?