2006 to 2009- california building code presentation

8/8/2019 2006 to 2009- California Building Code Presentation

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Understanding theINTERNATIONAL BUILDING CODE

2006 Edition


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Understanding the

INTERNATIONAL BUILDING CODE


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Understanding theCALIFORNIA BUILDING CODE

2007 Edition, Title 24

(IBC 06)


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Types of Construction(Chapter 6)

Level of Protection

Construction Type Most Elements

Protected

Most Elements

Unprotected

Non-Combustible

Exterior, interior (bearing or non-bearing) walls,floors, roofs and structural elements to be ofnon-combustible materials

I A B

II A B

CombustibleExterior walls to be of non-combustiblematerials

III A B

IV HTHeavy Timber

V A B


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4 4

UBCIBC

4

4

4


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Partition

nonrated

Structural frame or interiorbearing wall 3 hours

Floor/ceiling 2 hours

Roof 1 hours

Exteriorbearing

walls 3hours

Type I is that type of construction in which the building elements are of

noncombustible construction:

Type IA


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Partition

nonrated

Structural frame or interior

bearing wall 2 hours


Roof 1 hour

Exterior

bearingwalls 2

hours

Type IB


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Partition

nonrated


bearing wall 1 hour


Roof 1 hour

Exteriorbearingwalls 1 hour

Type IIA

Types II is that type of construction in which the building elements are of

noncombustible construction:


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Partitionnonrated


bearing wall nonrated

Floor/ceiling nonrated

Roof nonrated

Exterior bearingwalls nonrated

Type IIB


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Type IIIA

Partition

nonrated


bearing wall 1 hour

Floor/ceiling 1 hour

Roof 1 hour

Exterior bearingwalls 2 hours

Type III is that type of construction in which the exterior walls are of

noncombustible materials and the interior building elements are ofany material permitted by the code.


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Type IIIB

Partition

nonrated

Structural frame or interiorbearing wall nonrated


Roof nonrated

Exterior bearing

walls 2 hours


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Type IV HT(Heavy

Timber)

Partitionnonrated

Structural frame heavy timber & Interiorbearing wall 1 hour or heavy timber

Floor/ceiling heavy timber

Roof heavy timber

Exterior bearingwalls 2 hours

Type IV is that type of construction in which the exterior walls are of

noncombustible materials and the interior building elements are of solidor laminated wood without concealed spaces


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Type VA

Partition

nonrated


bearing wall 1 hour


Roof 1 hour

Exterior bearingwalls 1 hour

Type V is that type of construction in which the structural elements, exterior

walls and interior walls are of any materials permitted by this code.


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Type VB

Partitionnonrated

Structural frame or interiorbearing wall nonrated


Roof nonrated

Exterior bearing

walls nonrated


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A-3

Assembly uses intended forworship, recreation or amusementand other assembly uses notclassified elsewhere in Group A

including but not limited to:Amusement arcades

Art galleries

Bowling alleys

Churches

Community halls

CourtroomsDance halls (no food or drink consumption)

Exhibition halls

Funeral Parlors

Gymnasiums (w/o spectator seating)

Indoor swimming pools (w/o spectator seating)Indoor tennis courts (w/o spectator seating)

Lecture halls

Libraries

Museums

Waiting area in transportation terminals

Pool and billiard parlors

A-3

A building or portion of abuilding having an assemblyroom with an occupant load ofless than 300 without a

legitimate stage, includingsuch buildings used foreducational purposes and notclassified as Group B or EOccupancies.

IBC UBC


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2006

Section 304.1 Business Group B: Airport traffic control towersAnimal hospitals, kennels and pounds

Banks

Barber and beauty shops

Car wash

Civic administration

Clinicoutpatient

Etc.

2009

Section 304.1 Business Group B:Airport traffic control towers Ambulatory health care facilities

Animal hospitals, kennels and pounds

Banks

Barber and beauty shops

Car wash

Civic administration

Clinicoutpatient

Etc.

New Language:

304.1.1 Definitions. The following words and termsshall, for the purposes of this section and as usedelsewhere in this code, have the meanings shownherein.

CLINIC, OUTPATIENT. Buildings or portionsthereof used to provide medical care on less than a24-hour basis to individuals who are not renderedincapable of self-preservation by the servicesprovided.


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Section 422 (New Section)

AMBULATORY HEALTH CARE FACILITIES

422.1 General. Occupancies classified as Group B ambulatory heath carefacilities shall comply with the provisions of Sections 422.1 through 422.6

and other applicable provisions of this code.

422.2 Smoke Barriers. Greater than 10,000 SF - Minimum of two smoke compartments Travel distance from any point 200 feet

Smoke barrier wall shall be in accordance w/Section 710

422.3 Refuge area. Minimum of 30 net SF per patient on each side of the smoke barrier

422.4 Independent egress. A means of egress shall be provided from each smoke compartment

created by smoke barriers without having to return through thesmoke compartment from which means of egress originated

422.5 Automatic sprinkler systems.

422.6 Fire alarm systems.


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Covered Mall Buildings

Section 402.6.1 (New Subsection)

Reduced Open Space

Covered mall buildingincluding associatedparking garages and

anchor stores

Minimum 3 hours with 3-houropening protectives

40

60

Reduced open space permitted: Up to 75% of building perimeter Where exterior wall facing reduced rating has minimum 3-hour fire-resistance rating Openings in such walls are protected for minimum 3 hours Not applicable for Group E, H, I, and R occupancies


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Larger Area and Greater Heights

- Tradeoff

Greater Use of Sprinklers

Fire Resistance


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_______Aa At

If Is100

= +At

+_______At

100

Area Modifications - General

where:

Aa=Allowable area per floor (square feet)

=AtTabular area per floor in accordance with Table503 (square feet)

=IfArea increase due to frontage (percent) as

calculated n accordance with Section 506.2

=IsArea increase due to sprinkler protection (percent)as calculated in accordance with Section 506.3

Additional Area Increases of:

300 % (single story)

200 % (multi-story)

Additional Height & Story Increases of:

20 Feet

1 Additional Story

Automatic Sprinkler System Increases are allowed forHeight & Area - both can be attributed to the same

structure:


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2009 Changes

Group B Occupancy Type IIB & IIIB Construction

Height Reduction from 4 stories to 3

Group M Occupancy Type IIB & IIIB Construction


Group S-1 Occupancy Type IIB & IIIB Construction


Group S-2 Occupancy Type IIB & IIIB Construction



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Incinerator room(Incidental accessory occupancy classified as

a portion of the Group F-1 occupancy)

Protected by

automatic sprinklersystem (Table

508.2.5)

Minimum 2-hour fire barrier

(Table 508.2.5)

Group F-1 factory

Incidental Accessory Occupancies(formerly incidental use areas)


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Additional Stairway

Minimum Required Width52.5 inches

Additional Exit Stairway

403.5.2Other than R-2 and Heights greater than 420 feet

Exception: An additional exit stairway shall not be requiredto be installed in buildings having elevators used for

occupant self-evacuation in accordance with Section 3008.


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403.6.2 Occupant Evacuation Elevators. Where installedin accordance with Section 3008, passenger elevators forgeneral public use shall be permitted to used for occupantself-evacuation.

403.6.1 Fire service access elevator. In buildings with anoccupied floor more than 120 feet above the lowest level offire department access, a minimum of one fire service access

elevator shall be provided in accordance with Section 1007.


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_______Aa At

If Is100

= +At

+_______At

100

Area Modifications - General

where:

Aa=Allowable area per floor (square feet)

=AtTabular area per floor in accordance with Table503 (square feet)

=IfArea increase due to frontage (percent) as

calculated n accordance with Section 506.2

=IsArea increase due to sprinkler protection (percent)as calculated in accordance with Section 506.3

Additional Area Increases of:

300 % (single story)

200 % (multi-story)

Additional Height & Story Increases of:

20 Feet

1 Additional Story

Automatic Sprinkler System Increases are allowed forHeight & Area - both can be attributed to the same

structure:

CANNOT combine both Height & Area SprinklerIncreases in the Following:

High-Rise Buildings

Group A, E, H, I, L & R Occupancies


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__F W

P 30

0.25If =100_ __

If = Area increase due to frontage

F =Building perimeter which fronts on a publicway or open space having 20 (6096 mm) feet

open minimum width

=P Perimeter of entire building (feet)

=WWidth of public way or open space(feet) in accordance with Section

506.2.1

where:

Frontage Increase


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. . .A room or space used forassembly purposes by lessthan 50 persons and

accessory to anotheroccupancy shall be includedas part of that occupancy. . .Assembly areas with less

than 750 square feetandwhich are accessory toanother according to Section302.1 are not assembly

occupancies. Assemblyoccupancies which areaccessory to Group E. . .arenot considered assemblyoccupancies.

. . .for the gatheringtogether of 50 or morepersons. . .A room or

space used for assemblypurposes by less than 50persons and accessory to

another occupancy shallbe included as part ofthat major occupancy.

IBC UBC

General Requirements for Group A Occupancies

Not Classified as Group A (goes to B) when:

Buildings with < 50 people

Room, Space, Accessory < 50 people

Room, Space, Accessory < 750 S.F.


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Fire-Resistance Ratings & FunctionalUse of Walls & Partitions

FIRE WALLS 706

FIRE BARRIERS 707

FIRE PARTITIONS 709

SMOKE BARRIERS 710

SMOKE PARTITIONS 711

FIRE WALLS 706

FIRE BARRIERS 707

FIRE PARTITIONS 709

SMOKE BARRIERS 710

SMOKE PARTITIONS 711


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Fire Door & Fire Shutter Fire ProtectionRatings and Smoke & Draft Requirements are

Detailed in Section 715 of the IBC

E ti l R i t f O i


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Essential Requirements for OpeningProtectives:

Labeled Fire Resistance Ratings Certified NationallyRecognized Test Standards (Section 715.4)

Labeled Smoke & Draft Control Compliance CertifiedNationally Recognized Test Standards (Section 715.4.6.3)

Oversized Certification by an Approved Agency (Section 715.4.6.2)

Automatic Closing Compliance with NFPA 80 (Section 715.4.8.2)

Smoke Activated Shall be automatic closing by actuationof a smoke detector in specific applications (Section 715.4.8.3)

Opening Protectives must conform to Egress

Requirements when placed in the means of egress system


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Fire Walls Section 706

Definition:A fire-resistance-rated wall having protected openings, whichrestricts the spread of fire and extends continuously from the

foundation to or through the roof, with sufficient structuralstability under fire conditions to allow collapse of construction

on either side without collapse of the wall. (Section 702)

Opening Protective Ratings: (Table 715.3)

1 Hour3 Hour

3 Hour

Fire Ratings: (Table 706.3.9)

2 Hour3 Hour4 Hour

Design note:

Each portion of a building separated by one or more fire wallsshall be considered a separate building. (706.1)


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Fire Walls Section 706

Protecting Openings: (706.8)

Non-sprinklered buildings Openings shall notexceed 156 square feet and the aggregate width of

openings shall not exceed 25 percent of the lengthof the wall.

Sprinklered buildings Openings may exceed 156

square feet but the aggregate width of all openingsshall not exceed 25 percent of the length of the wall.


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Occupancy A-1 (Multi-plex theater facility)

Building Type IIIA (Rated, Single story)

Area Allowance 14,000 Sq. Ft. (Table 503, 09 IBC)

Actual Building Area 22,000+ Sq. Ft. (Exceeds allowable area)


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Partitionnonrated


bearing wall1 hour


Roof 1 hour

Exteriorbearing

walls2 hours

IIIA

Partition

nonrated

Structural frame orinterior bearing walls

3 hours


Roof 1 hours

Exterior

bearingwalls

3 hours

IA

LIMITEDTO1

4,000S.F

.

UNLIM

ITED


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2-hr Fire Wall

3 Separate Buildings

Each portion of a building separated by one or more firewalls shall be considered a separate building. (706.1)

IIIA

IA

IIIAIIIA


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1 hr. OpeningProtectives


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OpeningProtection OpeningProtection


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Fire Barriers Section 707(Fire Barriers vs Fire Walls)

Definition:

A fire-resistance-rated wall assembly designed to restrict thespread of fire in which continuity is maintained. (Section 702)

Fire Ratings: (Table 706.3.9) Opening Protective Ratings: (Table 715.3)1 4 Hours 1 3 Hours

25% rule applies (707.7) 06

Limited to 156 Sq. Ft. (707.7)

25% rule DOES NOT apply if labeled under ASTM E-119 (707.7)

NOT limited to 156 Sq. Ft. (707.7)

Opening Protective Guidelines

(FW / 2-4 hrs)

(FW / Structurally Independent)

(FW / NOT ALLOWED)


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Fire Barriers are used in the following:

Shaft Enclosures (Section 708.1)

Exit Enclosures (Section 1022.1)

Exit Passageways (Section 1023.3)

Horizontal Exits (1025.2)

Atriums (Section 404.6)

Incidental Accessory Occupancies (Section 508.2.5.1)

Control Areas (Section 414.2.1)

Separated Occupancies (Section 508.4.4.1)

Single-Occupancy Fire Areas (707.3.9)

Sh f E l


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Shaft Enclosures

Shall be constructed as fire barriers(Section 707.1)

Escalators must be enclosed unless the design meets the followingrequirements: (707.2 Exceptions 2.2.1 & 2.2.2)

Automatic Sprinkler System

NOT a portion of the means of egress

Floor opening between stories does not exceed twice thehorizontal projected area of the of the escalator or stairway

Opening is protected by a draft curtain and closely spaced

sprinklers in accordance with NFPA 13

In other than Groups B and M, this application is limited to

openings that do not connect more than four stories.

OR

Where the opening is protected by approved power-operatedautomatic shutters at every floor. . .and completely shut off the

well opening.

V ti l E it E l


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Vertical Exit Enclosures

Shall be enclosed with fire barriers(Section 1020.1)

Fire resistance rating of firebarrier walls @ stair

enclosures:

2 hrs connecting 4 stories

or more. . . (Section 1020.1)

1 hr connecting less than 4

stories (Section 1021.1)

Fire Door Fire Protection Ratings(Table 715.4)

1 3 Hours


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Wide-Span Openings Wide-Span Designs

Classroom

s

Classrooms

Classrooms

Classroom

s

Convenience

Stair-OPEN

3Floors

1hr.

Corrid

or

OPEN4 Floors

OPEN4 Floors

Shaft Enclosures Section 708

Openings through a floor/ceiling

assembly shall be protected by ashaft enclosure complying withthis Section. (Section 708.2)


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Wid S O i Wid S D i


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Classroom

s

Classrooms

Classrooms

Classroom

s

Convenience

Stair

1hr.

Corrid

or

OPEN4 Floors

OPEN4 Floors

AtriumsSection 404

The optimum protection of vertical opening spaces is tocreate a shaft enclosure. Since this is difficult to do with

conventional construction the code provides stringentrequirements and renames the space an atrium. The

following is a list of these requirements:

The entire building must be sprinklered Adjacent spaces must be separated by 1-hour fire

barrier constructionor

Excessive water deluge and glass to ensure protection Engineered smoke control system

Interior finishes on all walls and ceilings must be aminimum of Class B

Reduced travel distances

All of the above requirements can beeliminated or minimized by creating a shaft

enclosure or separating floors with wide-span opening protective technology


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Wide Span Openings Wide Span


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Wide-Span Openings Wide-Span

Designs

Classroom

s

Classrooms

Classrooms

Classroom

s

Convenience

Stair

1hr.

Corrid

or

OPEN4 Floors

OPEN4 Floors

Corridors

Section 1018.1 Construction. Corridorsshall be fire-resistance rated in

accordance with Table 1018.1. The

corridor walls required to be fire-resistance rated shall comply with Section

709 for fire partitions.

Wide Span Openings Wide Span


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Designs

Classroom

s

Classrooms

Classrooms

Classroom

s

Convenience

Stair

1hr.

Corrid

or

OPEN4 Floors

OPEN4 Floors



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Designs

Classroom

s

Classrooms

Classrooms

Classroom

s

Convenience

Stair

1hr.

Corrid

or

OPEN4 Floors

OPEN4 Floors


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EXIT

DISCHARGE

EXIT

ACCESS

EXIT

Means of Egress SystemMeans of Egress System

10051005

1004100410061006

Chapter 10 Means ofChapter 10 Means of


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p

EgressEgress1001 Administrative

1002 Definitions

1003 General Means of Egress

1004 Exit Access

1005 Exits

1006 Exit Discharge

1007 Misc. Means of Egress Requirements

1008 Assembly

1009 Emergency Escape & Rescue


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EXIT

DISCHARGE

EXIT

ACCESS

EXIT

Means of Egress SystemMeans of Egress System

10181018

1014101410241024

Chapter 10 Means ofChapter 10 Means ofEgress


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EgressEgress

1004 Occupant Load1005 Egress Width

1006 Means of Egress Illumination1007 Accessible Means of Egress

1008 Doors, Gates and Turnstiles

1009 Stairways and Handrails1010 Ramps1011 Exit Signs

1012 Handrails1013 Guards

1014 Exit Access

1015 Exit & Exit Access Doorways1016 Exit Access Travel Distance1017 Corridors

1018 Exits1019 Number of Exits & Continuity

1020 Vertical Exit Enclosures

1021 Exit Passageways1022 Horizontal Exits1023 Exterior Exit Ramps & Stairways

1024 Exit Discharge1025 Assembly

1026 Emergency Escape & Rescue

Common Components in theCommon Components in the


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Common Components in theMeans of Egress

Common Components in the

Means of Egress

Exit Access

RoomsCorridorsAisles

Doors

Exit

Horizontal ExitExit PassagewayExit EnclosureExterior Exit DoorExit Enclosures(Including elevators)

Exterior Exit Stairs

Exterior Exit Ramp

Exit DischargeExterior Exit BalconyExit CourtYard

TABLE 1015.1


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OCCUPANCYMAXIMUM OCCUPANT

LOAD

A, B, E, F, M, U 49

H-1, H-2, H-3 3

H-4, H-5, I-1, I-3, I-4, R 10

S 29

TABLE 1015.1

SPACES WITH ONE MEANS OF EGRESS

1014.2.1 Exit or exit access doorway arrangement.


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(when more than one exit is required)

EXIT

EXIT

1/2 The

Distance

1/3 The

Distance

W/O-Sprinklers

W/Sprinklers

EXIT

TABLE 1017.1

CORRIDOR FIRE RESISTANCE RATINGIB

C


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OCCUPANCY

OCCUPANT

LOAD

SERVED BY

CORRIDOR

REQUIRED FIRERESISTANCE

RATING (hours)

WITHOUT

SPRINKLERSYSTEM


RATING (hours)

WITH SPRINKLER

SYSTEM

H-1, H-2, H-3 All Not Permitted 1

H-4, H-5 Greater than 30 Not Permitted 1

A, B, E, F, M, S,U

Greater than 30 1 0

R Greater than 10 Not Permitted .5

I-2, I-4 All Not Permitted 0


CORRIDOR FIRE RESISTANCE RATING

REQUIRED FIRE REQUIRED FIRE

TABLE 1017.1 - CORRIDOR FIRE RESISTANCE RATINGCBC


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OCCUPANCY

OCCUPANT

LOAD

SERVED BY

CORRIDOR

REQUIRED FIRE

RESISTANCERATING (hours)

WITHOUTSPRINKLER

SYSTEM

REQUIRED FIRE

RESISTANCERATING (hours)

WITH SPRINKLERSYSTEM

H-1, H-2, H-3, L All Not Permitted 1


A, B, F, M, S, U Greater than 30 1 0

R Greater than 10 Not Permitted 1

I-2, I-2.1, I-4 Greater than 6 Not Permitted 1

I-1, I-3 Greater than 6 Not Permitted 1

E Greater than 10 1 1

TABLE 1017.1

CORRIDOR FIRE RESISTANCE RATINGIB

C


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OCCUPANCY

OCCUPANT

LOAD

SERVED BY

CORRIDOR


RATING (hours)

WITHOUT

SPRINKLERSYSTEM


RATING (hours)

WITH SPRINKLER

SYSTEM

H-1, H-2, H-3 All Not Permitted 1


A, B, E, F, M, S,U

Greater than 30 1 1

R Greater than 10 Not Permitted 1



CORRIDOR FIRE RESISTANCE RATING


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STREET

ALLEY

EXITEXIT

EXTERIOR DOORS

EXIT ENCLOSURE(Stair)

HORIZONTAL EXIT

EXIT PASSAGEWAY

EXIT ENCLOSURE(Elevator)

Horizontal Exit


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Terminal C

Terminal D

Horizontal Exit

Section 1016.1 Travel Distance

Limitations. In an A-3 Occupancy (airport

terminals) the travel distance, whensprinklered is limited to 250 feet.

Section 1022.1 Horizontal Exits.3 Fundamental Rules:

Separation must be minimum 2-hr. FireBarrier Wall

Minimum 90 minute Opening Protective Allowed to exit 50% of occupant load to an

area of refuge


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Accessible Means of Egress


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Additionally, specifically addressing Accessible Meansof Egress issues are two definitions in Section 1002.1:

The IBC concludes three general requirements:

1.Accessible egress is required in all buildings

2.Two accessible means of egress are requiredfor buildings with two or more floors (or singlefloor buildings with an occupant load greater

than 50)

3. In buildings more than four stories, one of thetwo required accessible means of egress mustbe an elevator

Section 1002.1


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AREA OF REFUGE. An area where personsunable to use stairways can remain temporarilyto await instructions or assistance during

emergency evacuation.

EXIT, HORIZONTAL. A path of egress travel from

one building to an area in another building onapproximately the same level, or a path of egresstravel through or around a wall or partition to an

area on approximately the same level in the samebuilding, which affords safety from fire and smokefrom the area of incidence and areascommunicating therewith.


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1007.1 Accessible means of egress required.

. . .Where more than one means of egress is

required . . . from any accessible space, eachaccessible portion of the space shall be served bynot less than two accessible means of egress.

Mobile or Immobile, the requirements are thesame for individuals exiting a building:

1007.2.1 Elevators Required.


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In buildings where a required accessible floor is fouror more stories above or below a level of exitdischarge, at least one required accessible means

of egress shall be an elevator complying withSection 1007.4

1007.4 Elevators. An elevator to be consideredpart of an accessible means of egress. . . Theelevator shall be accessed from either an area of

refuge. . .or a horizontal exit.

707.14.1 Elevator lobby. An enclosed


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elevator lobby shall be provided at each floorwhere an elevator shaft enclosure connectsmore than three stories. The lobby shallseparate the elevator shaft enclosure doorsfrom each floor by fire partitions equal to the

fire-resistance rating of the corridor and therequired opening protection. Elevator lobbiesshall have at least one means of egress

complying with Chapter 10 and otherprovisions within this code.

Exceptions:

707.14.1 (Continued)


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3. Where additional doors are provided at the hoistwayopening in accordance with Section 3002.6. Such doors shall betested in accordance with UL 1784 without an artificial seal.

4. In other than Group I-3, and buildings having occupiedfloors located more than 75 feet above the lowest level of firedepartment vehicle access, enclosed elevator lobbies are notrequired where the building is protected by an automatic sprinklersystem. . .

5. Smoke partitions shall be permitted in lieu of firepartitions to separate the elevator lobby at each floor where thebuilding is equipped throughout with an automatic sprinkler system.

. .6. Enclosed elevator lobbies are not required where the

elevator hoistway is pressurized in accordance with Section 707.14.2.


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Fire Partitions Section 708

Definition:


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Definition:A vertical assembly of materials designed to restrict the spread of fire in whichopenings are protected. (Section 702)

Fire Ratings: (708.3)

1 hour

Protecting Openings:

Opening protectives in fire partitions shall have a minimum fire rating of 20minutes and a maximum of 45 minutes. (Table 715.4) Also, these shall be

smoke tested under UL 1784.

Design Notes:

Most corridor walls fall into this category. (708.1.4 and Table 1017.1)Corridor walls in an I-2 Occupancy (Hospital) shall be constructed as Smoke

Partitions. (407.3 & 710)

Applications:

Dwelling Units, Guestrooms in R-1, Tenant spaces in covered mall buildings,Corridors from adjacent spaces. (708)

Smoke Barriers Section 709

Definition:A continuous membrane either vertical or horizontal such as a wall floor


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A continuous membrane, either vertical or horizontal, such as a wall, floor,

or ceiling assembly, that is designed and constructed to restrict themovement of smoke. (Section 702)

Fire Ratings: (709.3)

1 hour

Protecting Openings:Opening protectives in smoke barriers shall have a minimum 20 minute fire

rating and be UL 1784 smoke tested. (Table 715.4)

Design Notes:Door assemblies in smoke barriers of I-2 Occupancies (Hospitals) shallhave vision panels. (709.5)

Smoke barriers constructed of minimum 0,10-inch-thick steel in I-3

Occupancies (Jails & Prisons) are not required to be 1 hour rated. (709.3)

Applications:


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pp

In I-2 Occupancies(Hospitals) smoke barriers are required to subdivide every story

used by patients for sleeping or treatment. (407.4)

50 or more persons / minimum 2 smoke compartmentsEach compartment cannot exceed 22,500 square feetTravel distance shall not exceed 200 feet to a smoke barrier door

In I-3 Occupancies(Jails & Prisons) smoke barriers are required to divide every storyoccupied by residents for sleeping. (408.6)

50 or more persons / minimum 2 smoke compartments

Maximum number of residents in any smoke compartment is 200

Travel distance to any exit access component shall not exceed 150 feetTravel distance to any smoke barrier door shall not exceed 200 feet

Smoke Partitions 710

Definition:


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A partition constructed to limit the transfer or passage of smoke. (710.4)

Fire Ratings: (710.3)Non-rated

Protecting Openings:Door assemblies shall be UL 1784 tested and self closing by smoke detection.(710.5)

Design Notes:Smoke partitions and their use are very limited in the building code.

Applications:

Corridor walls of I-2 Occupancies (Hospitals). (407.3)

Elevator Lobbies (707.14.1 Exception #5)

2006 to 2009- california building code presentation

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