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2015 IBC Fire and Life Safety Principles

Copyright 2016 International Code Council 1

2015 IBC Fire and Life Safety Principles 2015 IBC Fire and Life Safety Principles Based on the 2015 International Building Code® (IBC®)

GoalGoal The goal of this seminar is to provide

participants with an understanding fire and life safety principles in the IBC.

2015 IBC Fire and Life Safety Principles 2

ObjectivesObjectivesUpon completion, participants will be better able to:

1. Classify uses into occupancy groups.2. Determine the type of construction of a proposed

building.3. Calculate actual and allowable building height and

floor area.4. Identify required fire-resistance-rated assemblies.5. Determine interior finish requirements.6. Identify any fire protection systems required.7. Determine means of egress design and component

requirements


OverviewOverview Introduction Use and Occupancy Classification Types of construction Special Detailed Requirements Based on Use and

Occupancy General Building Heights and Area Fire and Smoke Protection Features Interior Finishes Fire Protection Systems Means of Egress




Chapter 1 - IntroductionChapter 1 - Introduction

Module 1

5

General Scope/Applicability ProvisionsGeneral Scope/Applicability Provisions 101.2 – Scope 101.3 – Intent 101.4 – Referenced codes 102.4 – Referenced codes and

standards 104.1 – General duties and powers

of building official 104.8 – Liability


Effective Use of the IBCEffective Use of the IBC The following procedure is suggested: Building Classification Fire Protection Systems Means of Egress Fire and Smoke Protection Features Interior Finishes Special Detailed Requirements Based on Use and

Occupancy


Chapter 3 – Use and occupancy classification Chapter 3 – Use and occupancy classification

Module 2

8



Occupancy ClassificationOccupancy Classification Uses are grouped by occupancy based on

similar: Life safety characteristics Combustible content Fire hazards


Occupancy ClassificationOccupancy ClassificationTo achieve equivalent safety in building design, each occupancy group and division varies by: Type of construction restrictions. Fire protection requirements. Location, area and height limitations. Means of egress elements.


Occupancy ClassificationOccupancy ClassificationOccupant-related Hazards Number of occupants. Density of the occupants. Age of the occupants. Mobility of the occupants. Awareness of the occupants.


Occupancy ClassificationOccupancy ClassificationContent-related Hazards Density of contents. Quantity of contents. Type of contents. Environment of contents. Flammability of contents.




Use and Occupancy Classification SectionsUse and Occupancy Classification Sections302.1 – General A — Assembly. B — Business. E — Educational. F — Factory and

Industrial. H — Hazardous.

I — Institutional. M — Mercantile. R — Residential. S — Storage. U — Utility and

Miscellaneous.


Use and Occupancy Classification SectionsUse and Occupancy Classification Sections 303.1 – Assembly Group A A-1, A-2, A-3, A-4, A-5

304.1 – Business Group B 305.1 – Educational Group E 306.1 – Factory Group F F-1, F-2

307.1 – High Hazard Group H


Use and Occupancy Classification SectionsUse and Occupancy Classification Sections 307.3 – Group H-1 structures 307.4 – Group H-2 structures 307.5 – Group H-3 structures 307.6 – Group H-4 structures 307.7 – Group H-5 structures 308.1 - Institutional Group I 308.3 – Institutional Group I-1


Use and Occupancy Classification SectionsUse and Occupancy Classification Sections 308.4 – Institutional Group I-2 308.5 – Institutional Group I-3 308.6 – Institutional Group I-4 308.6.1 - Classification as a Group E Sections 308.6.2 and 308.6.3 Part of the primary

occupancy Section 308.6.3 Care in a dwelling unit.

309.1 – Mercantile Group M




Use and Occupancy Classification SectionsUse and Occupancy Classification Sections 310.1 – Residential Group R R-1, R-2, R-3, R-4

311.1 – Storage Group S 311.2 – Group S-1: Moderate-hazard

storage 311.3 – Group S-2: Low hazard

storage 312.1 – Group U: Utility and Miscellaneous


Use and Occupancy Classification Use and Occupancy Classification

Directions:1. You will be divided into groups.2. Within your groups classify the following

occupants.3. Discussion.


1. Cell Phone Tower 1. Cell Phone Tower


2. Insurance Office 2. Insurance Office




3. Steel Fabrication Plant3. Steel Fabrication Plant


4. Local Grade School4. Local Grade School


5. Hospital 5. Hospital


6. Bank 6. Bank




7. Juvenile Detention Center7. Juvenile Detention Center


8. Oil and Lube Shop 8. Oil and Lube Shop


9. Convenience Store9. Convenience Store


10. Multiplex Theater10. Multiplex Theater




11. Canopy Over Pump Island

11. Canopy Over Pump Island


12. Bleachers at Football Field

12. Bleachers at Football Field


13. Auto Body Shop13. Auto Body Shop


14. Open Parking Garage14. Open Parking Garage




What information is required to properly classify the following?What information is required to properly classify the following?


15. Kitchen Serving a Restaurant



16. Boarding House



17. Facility Used to Care for Children



18. Dance Studio for Children





19. Private Garages for Condominiums



20. Self-storage Facility



21. Dental Office



22. Casino Gaming Area





23. Fast Food Carry-out



24. Assisted Living Facility

Chapter 6 – Types of Construction Chapter 6 – Types of Construction

Module 3

43

Types of ConstructionTypes of Construction 602.1 – Construction Classification 602.2 – Construction Types I and II 602.3 – Construction Type III 602.4 – Construction Type IV (Heavy Timber) 602.5 – Construction Type V




Types of ConstructionTypes of ConstructionMaterial Structural Elements Construction

TypesNoncombustible Exterior and interior (bearing or

nonbearing) walls, floors, roofs, and structural elements to be ofnoncombustible materials

IAIBIIAIIB

Combustible and/ornoncombustible

Exterior walls to be of noncombustible materials. Remainder of any approved material.

IIIAIIIBIV-H.T.VAVB

Noncombustible and/or combustible

Any approved material. VAVB


Table 601 Table 601


2015 IBC Table 601Page 113

Table 601 NotesTable 601 Notesa. Roof supports: Fire-resistance ratings of primary structural frame and

bearing walls are permitted to be reduced by 1 hour where supporting a roof only.

b. Except in Group F-1, H, M and S-1 occupancies, fire protection of structural members shall not be required, including protection of roof framing and decking where every part of the roof construction is 20 feet or more above any floor immediately below. Fire-retardant-treated wood members shall be allowed to be used for such unprotected members.

c. In all occupancies, heavy timber shall be allowed where a 1-hour or less fire-resistance rating is required.

d. Not less than the fire-resistance rating required by other sections of this code.

e. Not less than the fire-resistance rating based on fire separation distance (see Table 602).

f. Not less than the fire-resistance rating as referenced in Section 704.10.


Table 601 NotesTable 601 Notes




Types of Construction— Table 601, Notes a-cTypes of Construction— Table 601, Notes a-c


Type I ConstructionType I Construction


TYPE IA

Type I ConstructionType I Construction


TYPE IB

Type II ConstructionType II Construction


TYPE IIA



Type II ConstructionType II Construction


TYPE IIB

Types of ConstructionTypes of Construction


TYPE IIIA

Type III ConstructionType III Construction


TYPE IIIB

Type IV ConstructionType IV Construction


TYPE IV Heavy Timber



Type V ConstructionType V Construction


TYPE VA

Type V ConstructionType V Construction


TYPE VB

Table 602 Table 602



Section 603 – Combustible material in Type I and Type II construction Section 603 – Combustible material in Type I and Type II construction Fire-retardant-treated (FRT) wood in: Thermal and acoustical insulation with limited

flame spread. Foam plastics in accordance with Chapter 26. A, B or C roof coverings. Interior floor finish, trim, millwork, doors, frames,

etc.




Section 603 – Combustible material in Type I and Type II construction Section 603 – Combustible material in Type I and Type II construction Platforms in accordance with Section 410. Blocking for handrails, cabinets, fixtures, etc. Light-transmitting plastics in accordance with

Chapter 26. Nailing or furring strips in accordance with

Section 803.4. Heavy timber (HT) for specific components. Additional applications as specified.


Types of ConstructionTypes of Construction Directions:1. You will be divided into groups.2. Within your group identify the minimum

required fire-resistance ratings based upon the type of construction and specific building element.

3. Discussion.



Construction Type

Structural Frame

Exterior Bearing Walls

Interior Bearing Walls

Floor Construction

Roof Construction

IA 3 3

IB 21

IIA 1 1

IIB 0 0

IIIA 1 1

IIIB 00

IV HT HT

VA 1 1 1

VB

3 2 11/2

2 2 2

1 1 1

0 0 0

1 2 1

2 0 0

2 1/HT HT

1 1

0 00 0 0

63

Chapter 4 – Special Detailed Requirements Based On Use and Occupancy

Chapter 4 – Special Detailed Requirements Based On Use and Occupancy

Module 4

64



Special Detailed RequirementsSpecial Detailed Requirements

402 – Covered mall and open mall buildings 403 – High-rise buildings 404 – Atriums 405 – Underground buildings 406 – Motor-vehicle-related occupancies 407 – Group I-2 408 – Group I-3



409 – Motion picture projection rooms 410 – Stages, platforms and technical

production areas 411 – Special amusement buildings 412 – Aircraft-related occupancies 413 – Combustible storage 414 – Hazardous materials



415 – Groups H-1, H-2, H-3, H-4 and H-5 416 – Application of flammable finishes 417 – Drying rooms 418 – Organic coatings 419 – Live/work units 420 – Groups I-1, R-1, R-2, R-3 and R-4



421 – Hydrogen Fuel Gas rooms 422 – Ambulatory health care facilities 423 – Storm Shelters 424 – Children’s Play Structures 425 – Hyperbaric Facilities 426 – Combustible Dusts, Grain Processing and

Storage




Special Detailed Requirements Based on Use and Occupancy Special Detailed Requirements Based on Use and Occupancy

1. What is the key issue when determining whether a parking structure is a “private” parking garage or a “public” parking garage?

Sections 406.3 and 406.4. The determining factor is the size of the parking facility. Where it does not exceed 1,000 square feet in floor area, the garage

can typically be classified as a private garage. Where it exceeds this size, it would be a public

garage.2015 IBC Fire and Life Safety Principles 69


2. What is the purpose of a control area?

Sections 414.2 and 307.1. Control areas are used by the designer to permit additional quantities of hazardous materials in buildings not classified as Group H. Up to the maximum allowable quantities

of hazardous materials may be located in each control area as limited by Table 414.2.2.



3. How must individual dwelling units be separated from other areas of an apartment building?

Section 420. Dwelling units must be separated from each other and from other occupancies in the

building through the use of fire partitions and/or horizontal assemblies.


Chapter 5 General Building Heights and AreaChapter 5 General Building Heights and Area

Module 5

72



Allowable AreaAllowable Area Essential ingredients in the determination of

allowable areas include: Type and amount of combustibles due to the use of

the building. Amount of combustibles contained in the construction

of the building. Features, such as automatic sprinkler systems, open

yards and fire walls.


Area LimitationsArea Limitations The restrictions for maximum building area are

intended to limit the size of the fire that potentially may develop.

Primary concern is that of property damage and spread of fire to adjacent buildings.


Area LimitationsArea Limitations Life safety is considered because of the number

of occupants.

Fire fighting accessibility and protection of fire department personnel is a factor.


Area LimitationsArea Limitations To determine allowable building area

of the structure: Determine the allowable area factor based on the

occupancy classification and type of construction as set forth in Table 506.2.

Determine any allowable increase based on the buildings location on the lot (Section 506.3).




503 – General height and area limitations 503 – General height and area limitations


503.1.2 – Buildings on the same lot503.1.2 – Buildings on the same lot

May be considered a singlebuilding if the aggregate areais within limits specified inSection 503.1.

Provisions of the code applicable toaggregate building to be applicableto each building.

May also be regulated as separate buildings per Section 705.3when imaginary line is assumed between buildings.


504 – Building Height and Number of Stories504 – Building Height and Number of Stories

Allowable Height Increase Type IIB building, Group B occupancy Table 504.3: Four stories; 55 feet (16 764 mm)

maximum height NOT equipped with NFPA 13 sprinkler system: Allowable one story increase to five stories. Allowable 20 foot (6096 mm) height increase to 75 feet

(22 860 mm) maximum height. Area increase is also permitted.


Table 504.3 – Building Height in Feet Above Grade PlaneTable 504.3 – Building Height in Feet Above Grade Plane




Table 504.3 – zoom to BTable 504.3 – zoom to B


Table 504.4 – Building Height in Stories Above Grade PlaneTable 504.4 – Building Height in Stories Above Grade Plane


Table 504.4 – zoom into BTable 504.4 – zoom into B


Table 506.2Table 506.2

2018 IBC Significant Changes 84



Table 506.2 zoom to BTable 506.2 zoom to B


Maximum Height in Stories/Feet Above Grade PlaneMaximum Height in Stories/Feet Above Grade Plane

Types of Construction

Occupancy Group

Sprinkler Protection

Maximum Height in Stories Above Grade Plane

Maximum Height in Feet Above Grade

Plane

IIB R-1 NFPA 13

VB B NONE

VA R-2 NFPA 13R

IA B NFPA 13

IIB H-3 NFPA 13

IIA I-2 NFPA 13


Maximum Height in Stories/Feet Above Grade PlaneMaximum Height in Stories/Feet Above Grade Plane

5 75 (22 860 mm)2 40 (12 192 mm)4 60 (18 288 mm)

UL UL

2 55 (16 764 mm)

3 85 (25 980 mm)

75 (22 860 mm)

Types of Construction

Occupancy Group

Sprinkler Protection

Maximum Height in Stories Above Grade Plane

Maximum Height in Feet Above Grade

Plane

IIB R-1 NFPA 13

VB B NONE

VA R-2 NFPA 13R

IA B NFPA 13

IIB H-3 NFPA 13

IIA I-2 NFPA 13


505 – Mezzanines505 – Mezzanines Not considered as an additional story. Not included in building area. Included in fire area. Regulated for means of egress under the

general provisions of Chapter 10. The clear height above and below the

mezzanine floor must not be less than 7 feet (2134 mm).




505.2.3 – Mezzanine Openness505.2.3 – Mezzanine Openness


506 – Building Area506 – Building Area A building’s maximum allowable floor area is

determined based on a variety of factors: The building’s type of construction. The occupancy classification(s) housed in the building. Whether or not there is a sprinkler system in the building. If sprinklered, the type of sprinkler system installed

(Group R.) Amount of open space (frontage) at the building’s

perimeter. The number of stories in the building.


506.2 – Allowable Area Determination506.2 – Allowable Area Determination For all of the following conditions, Table 506.2

establishes the allowable area factor that is the basis for determining the building’s total allowable area: Single-occupancy, one-story buildings. Mixed-occupancy, one-story buildings. Single-occupancy, multistory buildings. Mixed-occupancy, multistory buildings.


506.3 Frontage increase506.3 Frontage increaseThe following apply to an area increase for frontage: It is based on the percentage of open perimeter. There is no increase where the perimeter is no more

than 25-percent open. There is typically a maximum increase of 75 percent

where the entire perimeter is open. The open space must be at least 20 feet (6096 mm)

wide to be considered open, with 30 feet (9144 mm) typically required to obtain the maximum increase.

The open spaces are to be accessed from a street or a fire lane.




506.3 Frontage increase506.3 Frontage increase The following formula is to be used in

determining the area increase due to frontage.


506.3 Frontage increase506.3 Frontage increase Example 1 of Area Increase for Frontage Given: Yards as shown, 40-foot (12 192 mm) street Determine: Percent increase for area purpose (If)


506.3 Frontage increase506.3 Frontage increase


506.3 Frontage increase506.3 Frontage increase Example 2 of Area Increase for Frontage (weighted

average). Given: Yards as shown, two 60-foot (18 288 mm) streets






Frontage ActivityFrontage Activity Purpose: To apply the knowledge regarding frontage area. Given: Building “A” fronting on a 40-foot-wide (12 192 mm) street

with open yards as shown. Determine: The frontage increase, If , to be used in calculating

allowable area. If = [F/P - 0.25] W/30.


Frontage ActivityFrontage Activity Given: Building “B” fronting on a 60-foot-wide (18 288 mm) street,

with open yards as shown. Determine: The frontage increase, If , to be used in calculating

allowable area. If = [F/P - 0.25] W/30


Allowable Area CalculationAllowable Area Calculation Given: Four-story office building, Type IIB construction Fully sprinklered, Yards and streets as shown






Allowable Area ActivityAllowable Area Activity Given: A fully sprinklered Group B office building of Type VA

construction located on the site as shown. It is four stories and 54 feet (16 459 mm) in height above grade plane with a floor area of 57,700 square feet (5361 m2) on each of the four stories.

Determine: If in compliance with the IBC, based on the allowable building height and area permitted.


507 – Unlimited area buildings507 – Unlimited area buildings


The allowance of unlimited area permitted by Section 507 are commonly applied to the following buildings: One-story nonsprinklered Group F-2 or S-2, surrounded by

a minimum of 60- foot (18 288 mm) open space. One-story sprinklered Groups A-4 (other than Type V

construction), B, F, M or S surrounded by a minimum 60-foot (18 288 mm) open space (sprinklers may be omitted from participant areas of Group A-4 under specific conditions).

Two-story sprinklered Group B, F, M or S occupancies surrounded by a minimum 60-foot (18 288 mm) open space.

Reduced Open SpaceReduced Open Space




509 – Incidental uses509 – Incidental uses



509 – Incidental uses509 – Incidental uses



508 Mixed Occupancies508 Mixed Occupancies The designer must select one of the following

methods to address each occupancy pairing that occurs: Accessory occupancies. Nonseparated occupancies. Separated occupancies.


508.2– Accessory occupancies508.2– Accessory occupancies Compliance as accessory occupancy and

separation of occupancies by fire barriers are not required where four conditions exist: Occupancy under consideration is accessory to major

occupancy. Occupancy is not a Group H occupancy. Occupancy does not exceed 10 percent of the area of

the story where it is located. Occupancy does not exceed the tabular allowable

area values for nonsprinklered buildings found in Table 506.2.




508.2 Accessory Occupancies 508.2 Accessory Occupancies


508.3 Nonseparated occupancies508.3 Nonseparated occupancies


Nonseparated occupancies Nonseparated occupancies


Solution: Nonseparated occupanciesSolution: Nonseparated occupancies


The building does not exceed three stories in height, does not exceed 28,500 square feet per story, and is fully sprinklered. If it is provided with a manual fire alarm system throughout, it would comply as a nonseparatedoccupancy building.



508.4 – Separated Occupancies 508.4 – Separated Occupancies


Separated OccupanciesSeparated Occupancies


SolutionSolution


Occupancy Tabular Area (square feet)

Frontage Increase(square feet)

Allowable Area(square feet)

Group A-2 38,000 2,375 40,375

Group B 92,000 5,750 97,750

Group M 50,000 3,125 53,125

Solution: Apply the unity formula of Section 508.4.2 to determine compliance with allowable area.

510 Special Provisions510 Special Provisions A minimum 3-hour horizontal assembly must be

provided to ‘separate’ the buildings. Other conditions addressed in Section 510 include: Section 510.3 for a Group S-2 enclosed parking

garage with a Group S-2 open parking garage above. Section 510.4 applicable to parking beneath a Group

R occupancy. Section 510.7 for an open parking garage beneath a

Group A, I, B, M or R occupancy. Section 510.8 where a Group B or M occupancy is

located below a Group S-2 open parking garage.




510 Special Provisions510 Special Provisions Group R-1 and R-2 occupancies of Type IIA

construction may be nine stories and 100 feet (30 480 mm) in height where: There is a minimum 50 foot (15 240 mm) separation

to lot lines and other buildings. A 2-hour fire wall segregates the exits. The first floor construction is to be a minimum 11/2-

hour rated.


Chapter 7 – Fire and Smoke Protection Features Chapter 7 – Fire and Smoke Protection Features

Module 6

118

Chapter 7Chapter 7

Structural members. Exterior walls. Fire walls. Fire barriers. Fire partitions. Smoke barriers. Smoke partitions. Horizontal assemblies. Vertical openings. Shaft enclosures.

Penetrations. Fire-resistant joints. Opening protectives. Ducts and air transfer

openings. Concealed spaces. Fireblocking/draftstopping. Prescriptive and calculation

methods for determining fire-resistance rating.


This chapter contains provisions for building elements and protection features such as:

Elements of Fire SafetyElements of Fire SafetyFire safety is achieved in a building by providing one or more of the following: Fire-resistance-rated and/or smoke-resistant

construction (Chapter 7). Interior finishes (Chapter 8). Fire suppression (Chapter 9). Fire detection and notification (Chapter 9).




Elements of Fire Safety Elements of Fire Safety


Fire-Resistance Ratings and Fire TestsFire-Resistance Ratings and Fire TestsThe code distinguishes between two fundamental types of ratings for these assemblies: Fire resistance. Fire protection.

Collectively, they provide fire-resistant construction.


Fire-Resistance Ratings and Fire TestsFire-Resistance Ratings and Fire TestsFor the specified hourly rating, the conditions of acceptance for walls ensure that the assemblies will at least: Withstand fire exposure based on a standard time-

temperature curve without passage of flames or gases hot enough to ignite cotton waste on the unexposed side.

Withstand thermal shock of a fire hose stream test on the exposed side after the fire test.

Limit transmission of heat during the fire test to a maximum average of 250°F (121°C) above the initial temperature on the unexposed side.

Sustain applied loads during the fire test at load-bearing assemblies, where applicable.


Fire-Resistance Ratings and Fire TestsFire-Resistance Ratings and Fire Tests Fire-protection rating applies to opening

protective assemblies (i.e., doors and windows). Fire tests are conducted in accordance with NFPA 252, UL 10B or UL 10C for doors, and NFPA 257 or UL 9 for windows, as applicable (Section 716.5 and 716.6).

For the specified hourly rating, their conditions of acceptance all ensure that the assembly will at least withstand fire exposure and, typically, thermal shock, the same as specified for walls.




Section 703.2 – Fire-resistance ratingsSection 703.3 – Methods for determining fire resistance

Section 703.2 – Fire-resistance ratingsSection 703.3 – Methods for determining fire resistance

Fire tests in accordance with ASTM E119 or UL 263. The use of prescriptive (i.e., generic) designs contained in Section 721. The use of proprietary designs [i.e., testing by a Nationally Recognized

Testing Laboratory (NRTL) per ASTM E119, UL 263, or equivalent]. Calculations in accordance with Section 722. Engineering analysis based on a comparison of designs having a fire-

resistance rating in accordance with ASTM E119 or UL 263. Fire-resistance designs certified by an approved agency. Alternative methods in accordance with Section 104.11 (alternative

materials, design and methods of construction and equipment).


703.4 Automatic Sprinklers703.4 Automatic Sprinklers The fire-resistance ratings mandated

prescriptively throughout the IBC have been established such that the tested element, component or assembly will pass the standardized tests without the assistance of water cooling during fire exposure.


703.5 – Noncombustibility tests703.5 – Noncombustibility tests


Fire and smoke protection featuresFire and smoke protection features 703.6 – Fire-

resistance-rated glazing

703.7 – Marking and identification

704 – Structured members




705 – Exterior walls705 – Exterior walls


705.2 – Projections705.2 – Projections


2015 IBCTable 705.2,

page 120

Fire and smoke protection featuresFire and smoke protection features 705.3 – Buildings

on the same lot 705.5 – Fire-

resistance ratings


Fire and smoke protection featuresFire and smoke protection features 705.8 – Allowable area of openings 705.8.4 – Mixed Openings




705.11 – Parapets705.11 – Parapets


706 – Fire walls706 – Fire walls


706 – Fire walls706 – Fire walls


707 – Fire barriers707 – Fire barriers




708 – Fire Partitions708 – Fire PartitionsIt is limited in scope to the following required locations: Walls separating dwelling units from each other (Section 420.2). Walls separating sleeping units from each other (Section 420.2). Walls separating dwelling units and sleeping units from other

occupancies in the same building (Section 420.2). Walls separating tenant spaces in covered and open mall buildings

(Section 402.4.2.1). Corridor walls required to be fire-resistance rated (Section 1020.1). Elevator lobby separations (Section 3006.2). Egress balconies (Section 1019.2)


709 – Smoke barriers709 – Smoke barriersSmoke barriers are required at, intended for, or are a design option for the following: Compartmentation of underground buildings (Section 405.4). Compartmentation of Group I-2 (Section 407.5). Compartmentation of Group I-3 (Section 408.6). Smoke control systems (Section 909.5). Areas of refuge (Section 1009.6.4). Fire service access elevator lobbies (Section 3007.6.2). Occupant evacuation elevator lobbies (Section 3008.6.2).


710 – Smoke partitions710 – Smoke partitions The provisions of Section 710 are only applicable

where other sections of the IBC specifically mandate the use of smoke partitions, Such as in Section 407.3 addressing corridor walls in

Group I-2 occupancies, and Section 3006.3, Exception 2 dealing with elevator

lobbies. Smoke partitions are not required to have a fire-

resistance rating unless required by some other provision of the code. Smoke partitions must be capable of resisting the passage of smoke.


711 – Horizontal assemblies711 – Horizontal assemblies




712 – Vertical openings 712 – Vertical openings A summary of the acceptable applications listed in Section 712 are: Openings contained entirely within a shaft enclosure complying with

Section 713. Openings totally within an individual residential dwelling unit where

connecting four stories or less. Escalator openings if protected appropriately and the building is

provided with an automatic sprinkler system. Penetrations by pipes, tubes, conduits, etc., protected in accordance

with Section 714. Joints protected in accordance with Section 715. Openings for ramps, elevators and mechanical exhaust or supply

ducts, in parking garages. Penetrations by ducts protected in accordance with Section 717.6.


712 – Vertical openings 712 – Vertical openings A summary of the acceptable applications listed in Section 712 are: Penetrations by grease ducts protected in accordance with the IMC. Atriums complying with Section 404 (other than Group H). Masonry chimneys with annular space protection at each floor (Section

718.2.5). Floor openings connecting only two stories (with limitations). Automobile ramps in parking garages constructed in accordance with

Section 406.5 or 406.6. Floor openings between a mezzanine and the floor below. Openings at unenclosed stairways and ramps in accordance with Section

1009.3. In Group I-3 occupancies (as permitted by Section 408.5). Horizontal fire door assemblies and access doors where tested and labeled. Skylights and other penetrations where multiple conditions are met. Where permitted by other sections of the code.


713 – Shaft enclosure 713 – Shaft enclosure Shaft enclosures are one of the multiple

applications set forth in Section 712.1 to address openings and penetrations that occur in floor/ceiling and roof/ceiling assemblies of multistory buildings.

Such enclosures are to be constructed through the use of fire barriers, or horizontal assemblies, or both.


714 – Penetrations714 – Penetrations


Membrane penetration firestop systems are generally not tested, instead they consist of the portions of through-penetration firestop systems required to protect a penetration on only one side of an assembly.







715 – Joint Systems715 – Joint Systems


716 – Opening protectives716 – Opening protectives Where opening protectives (fire doors, fire shutters

and fire windows) are mandated by other provisions of the IBC, the provisions of Section 716 are applicable.

As an option, fire-resistance-rated glazing tested as part of a wall assembly in accordance with ASTM E 119 or UL 263 is permitted in fire windows and fire doors in accordance with their listings and not required to meet the provisions of Section 716.5.




Table 716.5 – Fire door and shutter assembliesTable 716.5 – Fire door and shutter assemblies


2015 IBCTable 716.5,

pages 140-141

716.6 - Fire-protection-rated glazing716.6 - Fire-protection-rated glazing


2015 IBC Table 716.6Page 143

717 – Ducts and air transfer openings717 – Ducts and air transfer openings


2015 IBC Table717.3.2.1

Page 144

Fire-resistance-rated construction Fire-resistance-rated construction

Wall assembly Fire door assembly_____ 1-hour interior exit A. No rating required

stairway _____ 3-hour fire wall B. 20 minutes_____ 1-hour occupancy

separation C. 45 minutes_____ 2-hour fire area

separation D. 1 hour_____ Smoke partition E. 1 1/2 hours_____ Smoke barrier F. 3 hours


A

E

CF

D

B



Chapter 8 – Interior Finishes Chapter 8 – Interior Finishes

Module 7

153

Wall and ceiling finishes with limits on flame spread and smoke development, except for: Materials less than 0.036-inches thick (0.914 mm)

applied directly to the surface of walls or ceilings, (Section 803.2) and

Exposed portions of building elements complying with Type IV requirements (Section 803.3).

Floor finishes having a limited critical radiant flux (Section 804).

Trim and decorative materials that are regulated for flame resistance (Section 806).

803 – Wall and Ceiling Finishes803 – Wall and Ceiling Finishes


Section 803.11 – Interior finish requirements based on groupsSection 803.11 – Interior finish requirements based on groups

Table 803.11 specifies the minimum required classification for wall and ceiling finishes based on occupancy classification and automatic sprinkler protection for the following locations: Interior exit stairways, interior exit ramps and exit

passageways, Corridors and enclosure for exit access stairways, or Rooms and enclosed spaces (i.e., not included in the

first two items).


Section 803.11 – Interior finish requirements based on groupsSection 803.11 – Interior finish requirements based on groups




804 – Interior Floor Finish Requirements804 – Interior Floor Finish Requirements Fibrous interior floor finishes in enclosures for

stairways, exit passageways, corridors and rooms not separated from corridors by full-height partitions must also meet the following minimum classifications: Class I for Groups I-1, I-2 and I-3 in a nonsprinklered

building. Class II for Groups I-1, I-2 and I-3 in a fully

sprinklered building. Class II for Groups A, B, E, H, I-4, M, R-1, R-2 and S

in a nonsprinklered building.


Interior finishesInterior finishesOccupancy group

Sprinkler protection

Location within building Special Condition

Maximum Speed

B NO Nonrated corridor None

A-2 YES Dining room None

I-2 YES Office space Administrative

F NO Warehouse space None

R-1 YES Vertical exit enclosure 2 stories

M NO Sales room None

U NO Private garage None

R-2 YES Rated corridor Wanscotting

H-2 YES Laboratory 3 stories

I-3 YES Vertical exit enclosure 2 stories

B

CC, note h

C

C, note bC

No restrictionsC

B, Note g

A

Chapter 9 – Fire Protection SystemsChapter 9 – Fire Protection Systems

Module 8

159

General Requirements for Fire Protection SystemsGeneral Requirements for Fire Protection Systems

Are to be installed, repaired, operated and maintained in accordance with the IBC and the IFC.

Systems not required by the IBC are permitted to be installed for partial or complete protection, provided such systems meet the requirements of the IBC.

Any system for which an exception to, or reduction in, the provisions of the IBC has been granted must be considered a required system.

No person is permitted to remove or modify any system without the approval of the building official.

All systems must be tested in accordance with the requirements of the IBC and IFC in the presence of the building official and at the expense of the owner or owner’s representative.

It is unlawful to occupy portions of a structure until the required fire protection systems within that portion have been tested and approved.

160



Group A OccupanciesGroup A Occupancies Buildings with an occupant

load of 50 or more used for worship, drinking, dining, dancing or entertainment or awaiting transportation.

Requirements based on occupant load, fire area or the building’s particular use.

2015 IFC and IBC Fire Protection Systems 161Page 30

Group A OccupanciesGroup A Occupancies

When sprinklers are required, provided for the entire floor.

All floors between the Group A 1- A 4 occupancy and the level of exit discharge require automatic sprinkler protection.


Group A-1 (Theaters/Symphonies)Group A-1 (Theaters/Symphonies)

§903.2.1.1: Fire area:

is > 12,000 square feet.

has an occupant load ≥ 300.

is located on a level other than a level of exit discharge.

contains a multitheater complex.


Group A-1Group A-1




Group A-2 (Food/Drink)Group A-2 (Food/Drink)

§903.2.1.2: Fire area: exceeds 5,000 square feet.

has an occupant load 100 or more.

is located on a floor other than a level of exit discharge.


70

Group A-2 OccupanciesGroup A-2 Occupancies


Group A-3/A-4 (Small Assemblies)Group A-3/A-4 (Small Assemblies)

§903.2.1.3 and 903.2.1.4:

Fire area is > 12,000 square feet.

Occupant load is 300 or more.

Fire area is located on a floor other than a level of exit discharge.


Group A-3 and A-4Group A-3 and A-4




Group A-5 (Amusement/Stadiums)Group A-5 (Amusement/Stadiums)

§ 903.2.1.5: an area of 1,000 square feet or more that are

enclosed within stadiums or arenas: Concession areas. Retail areas. Press boxes.

2015 IFC and IBC Fire Protection Systems 169

OUTDOORSTADIUM STANDS

INTERIORSPACE THAT

INCLUDES OTHEROCCUPANCIES

Page 35

Ambulatory Health CareAmbulatory Health Care §903.2.2 Group B Four or more incapable of

self-preservation, or,

One or more incapable of self-preservation and located on level other than exit discharge

All floors including AHC, between and exit discharge

2015 IFC and IBC Fire Protection Systems 170Page 35-36

Group E (Educational)Group E (Educational)

§903.2.3: Fire area > 12,000 square feet.

Throughout every portion of the building below a level of exit discharge.

Sprinklers not required :

each classroom has at least one exterior exit door at ground level, or,

fire area is < 12,000 square feet.


Group F-1 (Factory/Industrial)Group F-1 (Factory/Industrial)§903.2.4: Fire area is > 12,000

square feet.

Group F-1 fire area located more than three stories above grade plane.




Group F-1 (cont’d)Group F-1 (cont’d) Combined area of all Group F-

1 fire areas on all floors (including mezzanines) exceeds 24,000 square feet.

F-1 occupancy used for the manufacture of upholstered furniture or mattresses exceeds 2,500 square feet.


Woodworking OperationsWoodworking Operations§ 903.2.4.1: Fire area is > 2,500

square feet; and, Process generates finely

divided waste or uses finely divided material.


Group H (Hazardous)Group H (Hazardous)

§903.2.5 requires all Group H occupancies.

§5004 sprinkler systems must be designed using a minimum Ordinary Hazard Group 2 density based on a 3,000- square-foot design area.

0.17 gpm/ft² in a 3,000-square-foot design area.


Group H-5 (Semi-conductor Fab)Group H-5 (Semi-conductor Fab)

§903.2.5.2: throughout the building.

Table 903.2.5.2: Ordinary or Extra Hazard

Design category varies




Group I (Institutional)Group I (Institutional)

Throughout building, regardless of the area or location of the I occupancy.

Group I-1, Condition 1 (assisted living, self-care), §903.2.6 NFPA 13R or 13D systems.

In I-2 occupancies, §903.3.2 requires the installation of QR or residential sprinklers throughout smoke compartments housing patient sleeping rooms.


Group M (Mercantile)Group M (Mercantile)§903.2.7:


Group M fire area is more than 3 stories above the grade plane.

Combined area of all Group M fire areas on all floors (including mezzanines) exceeds 24,000 square feet.

Group M Occupancy used for the display and sale of upholstered furniture or mattresses exceeds 5,000 ft2


Page 40

Group M (Mercantile)Group M (Mercantile)

In Group M occupancies containing high piled-storage, §903.2.7.1 requires the building and the automatic sprinkler system to also comply with Chapter 32.


Group R (Residential)Group R (Residential)

§903.2.8 requires automatic sprinkler protection throughout buildings housing a Group R fire area. One- and two-family dwellings

and townhomes require automatic sprinkler protection in accordance with the 2015 International Residential Code.




Pedestal/Podium ConstructionPedestal/Podium Construction

IBC § 510 addresses Group R occupancies mixed with Group A, B, M or S occupancies.

Depending on construction type, height and area, sprinkler design may be: NFPA 13, or, combination of NFPA 13 and NFPA 13R.


Pedestal/Podium ConstructionPedestal/Podium Construction


Type IA Construction with a 3- hour horizontal assembly

Not more than 4 stories; but > 60 ft height < 70 ft.

NFPA 13 Design

Page 43

Pedestal/Podium (con’t)Pedestal/Podium (con’t)


Type IA Construction with a 3- hour horizontal assembly

If 4 stories or less and the height is 60 feet or less

NFPA 13 Design

NFPA 13R Design

Page 42

Group S-1 (Storage)Group S-1 (Storage) §903.2.9 :


Group S-1 fire area is located more than three stories above the grade plane.

Combined area of all Group S-1 fire areas on all floors (including mezzanines) exceeds 24,000 square feet.

Storage of commercial trucks or buses when the fire area is > 5,000 square feet.

Storage of upholstered furniture or mattresses exceeds 2,500 ft2.




Group S-1 (Repair Garages)Group S-1 (Repair Garages)

§903.2.9.1: One-story repair garage fire area

is > 12,000 square feet.

Building height is two or more stories and the repair garage fire area > 10,000 square feet.

Repair garage is located in a basement.

Storage of commercial trucks or buses when the fire area is > 5,000 square feet.


Group S-2 (Enclosed Parking Garages)Group S-2 (Enclosed Parking Garages)

§903.2.10: Fire area exceeds 12,000

square feet. Enclosed parking garage

beneath other occupancy groups.

Commercial vehicles or buses when the fire area > 5,000 square feet.


Application Matrix of the NFPA Sprinkler Standards Application Matrix of the NFPA Sprinkler Standards

NFPA StandardDesign

Consideration

NFPA Sprinkler Standard

NFPA 13 NFPA 13R NFPA 13D(IRC P2904)

Extent ofProtection

Throughout the building (IFC Section 903.3.1.1)

Occupied spaces (IFC Section 903.3.1.2)

Occupied spaces (IFC Section 903.3.1.3)

Design Intent Life safety andproperty protection Life safety Life safety

Applicability All IBC and NFPAoccupancies

Group R occupancies to 4 stories

One- and two- familyDwellings and townhomes

Design Methods

Pipe schedule; control mode— discharge density/

design area; control mode—specific application; suppression mode

4-sprinklers/compartments

2-sprinklers/ compartment(Designs using IRC P2904

are prescriptive)

Sprinklers All listed andapproved types Listed residential Listed residential

Minimum H2OSupply Duration

30 to 120 minutes, depending on the design 30 minutes 10 minutes


901.7 – Fire Areas 901.7 – Fire Areas




903 – Automatic sprinkler systems903 – Automatic sprinkler systems


1. Fire Area Activity1. Fire Area Activity


2. Fire Area Activity2. Fire Area Activity


2.

Fire Area Fire Area


3.



Fire Area Fire Area


4.

Fire Area Fire Area

5.


904 – Alternative automatic fire-extinguishing systems904 – Alternative automatic fire-extinguishing systems

2015 IBC Fire and Life Safety Principles 195 2015 IBC Fire and Life Safety Principles 196



905 – Standpipe Systems905 – Standpipe Systems


906 – Fire extinguishers906 – Fire extinguishersCLASSIFICATION TYPE OF FIRE

Class A Fires involving ordinary combustibles such as paper, cloth, etc.

Class B Fires involving combustible or flammable liquids and gases.

Class C Fires involving energized electrical equipment—the extinguishing agent must be nonconductive.

Class D Fires involving combustible metals such as titanium, magnesium.

Class K Fires involving deep fat fryers.


907 – Fire alarm and detection systems907 – Fire alarm and detection systems







2015 IBC Fire and Life Safety Principles 201 2015 IBC Fire and Life Safety Principles 202



910 – Smoke and Heat Removal910 – Smoke and Heat Removal Approved smoke and heat vents must be

installed in roofs of one-story buildings, or portions thereof, occupied for the following uses: Group F-1 or S-1 having more than 50,000 square

feet (4645 m2) in undivided area (exceptions for aircraft repair hangars, sprinklered frozen-food warehouses and areas of buildings equipped with early suppression, fast response (ESFR) sprinklers).

Any occupancy containing high-piled combustible stock or rack storage in accordance with Section 413 and the IFC.




911 – Fire command center911 – Fire command center Fire department communications unit. Fire detection and alarm system annunciator

unit. Status indicators and controls for air-handling

systems. Controls for unlocking stairway doors

simultaneously. Emergency and standby power status indicators.


911 – Fire command center911 – Fire command center Fire pump status indicators. Schematic building plans. Manual start and transfer features. Elevator fire recall switch. Approved “Building Card Information “


Chapter 10 – Means of EgressChapter 10 – Means of Egress

Module 9

207

Means of EgressMeans of Egress




Exit AccessExit Access


ExitExit

2015 IBC Fire and Life Safety Principles 2102015 IBC Fire and Life Safety Principles

Exit DischargeExit Discharge


Three-part means of egress systems Three-part means of egress systems

1. Interior exit stairway ____2. Aisle accessway ________3. Egress court ___________4. Fire-resistance-rated corridor _________________5. Aisle _________________6. Exit passageway ________7. Exterior exit stairway _____


8. Intervening room ______9. Egress balcony ______10. Nonrated corridor ____11. Interior unenclosed stairway ______________12. Exterior exit door at grade ________________13. Horizontal exit _______

1. Interior exit stairway _____E____2. Aisle accessway _________EA___3. Egress court ____________ED__4. Fire-resistance-rated corridor

____________________EA___5. Aisle ________________EA_____6. Exit passageway ________E_____7. Exterior exit stairway _____E_____

8. Intervening room _EA_______9. Egress balcony _____EA____10. Nonrated corridor _EA_____11. Interior unenclosed stairway

________________E_______12. Exterior exit door at grade

_________________E______13. Horizontal exit ____E______




1003 - General means of egress1003 - General means of egress


1004.1.1 - Cumulative occupant loads1004.1.1 - Cumulative occupant loads


1004.2 –Increased occupant load

1004.2 –Increased occupant load


Exiting from multiple levelsExiting from multiple levels




1005 – Means of egress sizing1005 – Means of egress sizing The total width of the means of egress in inches

(mm) must not be less than the total occupant load served by the means of egress multiplied by: 0.3 inches (7.62 mm) per occupant for stairways, and 0.2 inches (5.08 mm) per occupant for other egress

components.


Occupant LoadServed

Factor from Section 1005.1

Minimum AvailableWidthx =


Occupant Load Occupant Load 1. What is the occupant load for a place of

worship seating area having 40 pews, each pew being 18 feet (5486 mm) in length?

18'/1.5' = 12 x 40 = 480 occupants (Section 1004.4)


Occupant Load Occupant Load 2. What is the minimum required egress width for

a one-story sprinklered Group M occupancy having an occupant load of 878?

Without EV/AC system; Group M; 878 (0.2) = 175.6 inches (4460 mm)

With EV/AC system: Group M: 878 (0.15) = 131.7 inches (3345 mm)


Occupant Load Occupant Load 3. What is the total required exit stairway width for

a second floor office space having an occupant load of 330 in a nonsprinklered building?

Nonsprinklered; Group B; 330 (0.3) = 99.0 inches (2515 mm)




Occupant Load Occupant Load 4. Determine the design occupant load:

a. 32,000-square-foot (2973 m2) factory ______________________________b. 2,400-square-foot (112 m2) sales room (grade floor) __________________c. 1,200-square-foot (112 m2) apartment unit _____________________________


32,000/100 = 320 occupants

2,400/60 = 40 occupants

1,200/200 = 6 occupants


1005.5 - Distribution of egress capacity1005.5 - Distribution of egress capacity








1005.7.1 – Door encroachment1005.7.1 – Door encroachment


Application ExampleApplication Example


1008 – Means of egress illumination1008 – Means of egress illumination


1009 – Accessible means of egress1009 – Accessible means of egress




1010 – Doors, gates and turnstiles1010 – Doors, gates and turnstiles


1010.1.1 – Size of doors1010.1.1 – Size of doors


1010.1.1 – Size of doors1010.1.1 – Size of doors


1010.1.2 – Door swing1010.1.2 – Door swing




1010.1.4 – Special doors 1010.1.4 – Special doors Revolving doors Power-operated doors Horizontal sliding doors Access-controlled Security grilles


1010.1.5 –Floor elevations

1010.1.5 –Floor elevations


1010.1.5 – Floor elevations1010.1.5 – Floor elevations


1010.1.9 – Door Operations1010.1.9 – Door Operations




1010.1.10 –Panic and fire exit hardware

1010.1.10 –Panic and fire exit hardware


1011.2 – Width and capacity1011.2 – Width and capacity


1011.5 – Stair treads and risers1011.5 – Stair treads and risers


1011.6 – Stairway landings1011.6 – Stairway landings




1011.9 through 1011.15–Alternate stairways

1011.9 through 1011.15–Alternate stairways


1011.11 – Handrails1011.11 – Handrails


1014.9– Intermediate handrails1014.9– Intermediate handrails


1014.3 – Handrail graspability1014.3 – Handrail graspability




1014.3 – Handrail graspability1014.3 – Handrail graspability


1014.6 – Handrail extensions1014.6 – Handrail extensions

34″ - 38″

34″ - 38″12″Minimum

Handrail

* Extension “X” continues to slope for the depth of one tread beyond bottom riserFor SI: 1 inch = 25.4 mm.

“X”*


1012 – Ramps 1012 – Ramps


1013 – Exit signs1013 – Exit signs




1013.6.3 – Power source1013.6.3 – Power source


EXIT

1015 – Required guards1015 – Required guards


1015.3 –Height 1015.3 –Height


1015.4 – Opening limitations1015.4 – Opening limitations




1016.2 – Egress through intervening spaces1016.2 – Egress through intervening spaces


1016.2 – Exit through intervening spaces1016.2 – Exit through intervening spaces


*Exception: Kitchen within same dwelling unit or guestroom.

Kitchens, storerooms, closets or spaces used for similar purposes

Egress not permitted Kitchen*, store room,

closet or similar use



Dwelling units or sleeping area

Sleeping area, toilet room

Egress from dwelling units or sleeping areas shall not lead through other sleeping areas or toilet areas.



*Exception When space to be entered is the same occupancy group.

Egress not permitted High-hazard occupancy*

A High-hazard occupancy



1006.2.1 – Spaces with one exit or exit access doorway1006.2.1 – Spaces with one exit or exit access doorway


2015 IBC Table

1006.1Page 254

1014.3 – Common path of egress1014.3 – Common path of egress


1007 – Exit and Exit Access Configuration1007 – Exit and Exit Access Configuration


1017 – Exit access travel distance 1017 – Exit access travel distance




1017 – Exit access travel distance1017 – Exit access travel distance


X

Distance of travel measurement continues for unenclosed stairway or ramp.



2015 IBC Table

1017.2Page 277

1017.2.1 – Exterior egress balcony increase1017.2.1 – Exterior egress balcony increase




2015 IBC Table

1020.1Page 279





2015 IBC Table

1020.2Page 279

1020.4 Dead ends 1020.4 Dead ends


1020.6 – Corridor continuity1020.6 – Corridor continuity


1021 Egress Balconies1021 Egress BalconiesBalconies considered as a portion of the means of egress must comply with the same requirements as corridors for: Width. Headroom. Dead ends. Projections.




1023 Interior Exit Stairways and Ramps1023 Interior Exit Stairways and Ramps Interior exit stairways and ramps must be

enclosed as specified in Section 1023.2. They shall lead directly to the exterior of the

building or be extended to the building’s exterior with an exit passageway.

An interior exit stairway or ramp shall not be used for any purpose that interferes with its role as a means of egress.


1023.2 – Construction1023.2 – Construction


Elevation

1023.7– Interior exit stairway and ramp exterior walls1023.7– Interior exit stairway and ramp exterior walls


1023.11 – Smokeproof enclosures and pressurized stairways 1023.11 – Smokeproof enclosures and pressurized stairways




1024 – Exit passageway1024 – Exit passageway


1024 – Exit passageway1024 – Exit passageway


1026 – Horizontal exits1026 – Horizontal exits


1026.4 – Refuge area1026.4 – Refuge area




1027 – Exterior exit ramps and stairways1027 – Exterior exit ramps and stairways


1027 – Exterior exit ramps and stairways1027 – Exterior exit ramps and stairways


1027.6 – Exterior ramps and stairway protection1027.6 – Exterior ramps and stairway protection


1028 – Exit discharge1028 – Exit discharge




1028.4 –Egress courts1028.4 –Egress courts


1028.4.2 –Egress court construction

1028.4.2 –Egress court construction



1029 – Assembly1029 – Assembly1029.6 – Capacity of aisle for assembly1029.6 – Capacity of aisle for assemblyThe minimum required capacity is determined from:

Buildings without smoke-protected seating (Section 1029.6.1).

Buildings with smoke-protected seating (Section 1029.6.2 or 1029.6.3).

In no case must minimum clear widths of aisles be less than those stated in Section 1029.9.1.




1029.6 – Capacity of aisle for assembly1029.6 – Capacity of aisle for assemblyThe following requirements apply to aisles in assembly seating areas without smoke protection: A minimum of 0.3 inch (76 mm) in width per

occupant for stepped aisles with a maximum riser height of 7 inches (1.78 mm) (no decrease for sprinklered building).

If risers exceed 7 inches in height, aisle capacity increases by 0.005 inch (0.127 mm) per occupant per 0.10 inch (2.5 mm) increase in riser height.


Table 1029.6.2Table 1029.6.2


2015 IBC Table

1029.6.2Page 288

1029.6.3 – Width of means of egress for outdoor smoke protected assembly1029.6.3 – Width of means of egress for outdoor smoke protected assembly


1029.10.1 –Means of egress for seating at tables

1029.10.1 –Means of egress for seating at tables




1030 Emergency Escape and Rescue1030 Emergency Escape and RescueExterior emergency escape and rescue openings must be provided in Group R-3 occupancies and in Group R-2 occupancies in accordance with Tables 1006.3.2(1) and 1006.3.2(2) in the following areas: Basements. Sleeping rooms below the fourth story.


1030.2 – Minimum size1030.2 – Minimum size


Means of Egress ActivityMeans of Egress Activity1. Access to at least three exits or exit access

doorways is required from a room where the occupant load exceeds _______________.


500, Section 1006.2.1.1

Means of Egress ActivityMeans of Egress Activity2. What is the minimum required corridor width:a. For access to mechanical equipment ________b. Within a dwelling unit ____________________c. Serving 100 or more occupants in a Group E

occupancy _______________________d. For Group I-2 bed movement areas

_______________________e. Serving an occupant load less than 50 _______________________


24 inches

36 inches

72 inches

96 inches

36 inches



Means of Egress ActivityMeans of Egress Activity3. What is the maximum permitted travel distance,

including exterior egress balcony travel, for a sprinklered Group R-1 occupancy?

4. How many intermediate rails are required for a 30-foot (9144 mm) wide stair that has a required width of 18 feet 9 inches (5738 mm)?


350 feet (106 680 mm), based on 250' + 100' (76 200 mm + 30 480 mm)maximum balcony travel (Table 1017.2 and Section 1017.2.1)

18' 9" = 225"/60 — four paths - three intermediate rails (Section 1014.9)

Means of Egress ActivityMeans of Egress Activity5. How many means of egress are required from the following spaces, assuming the common path of travel is within the allowable limits?a. 4,000-square-foot office b. 450-square-foot conference room c. 6,000-square-foot warehouse d. 2,400-square-foot apartment e. 1,800-square-foot sales room f. 900-square-foot café

_____________________2015 IBC Fire and Life Safety Principles 294

4,000/100 = 40 = 1

450/15 = 30 = 16,000/500 = 12 = 1

2,400/200 = 12 = 1

1,800/60 = 30 = 1900/15 = 60 = 2

Means of Egress ActivityMeans of Egress Activity6. What is the minimum required width of an

egress court serving a Group M occupancy?

44 inches (1118 mm) (Section 1028.4.1)


ConclusionConclusion Review Surveys Questions




Final ReflectionFinal Reflection

This slide will help the learner to reflect on the day and what they will take back to the job and apply. What? What happened and what was observed

in the training? So what? What did you learn? What difference

did this training make? Now what? How will you do things differently

back on the job as a result of this training?

2015 IBC Fire and Life Safety Principles 297 298

International Code Council is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. Certificates of Completion for non-AIA members are available on request.

This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

299

Copyright Materials

This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the presentation without written permission of the speaker is

prohibited.

© International Code Council 2016

Thank you for participating!Thank you for participating!

To schedule a seminar, contact:The Learning Center™

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E‐mail: [email protected]


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a. T

he c

lear

hei

ght

abov

e an

d be

low

the

mez

zani

ne f

loor

con

stru

ctio

n sh

all

be n

ot l

ess

than

7 f

eet

(213

4 m

m).

TA

BL

E 5

04.3

a

ALL

OW

AB

LE B

UIL

DIN

G H

EIG

HT

IN F

EET

AB

OVE

GR

AD

E PL

AN

E

For

SI:

1 fo

ot =

304

.8 m

m.

Not

e: U

L =

Unl

imit

ed; N

S =

Bui

ldin

gs n

ot e

quip

ped

thro

ugho

ut w

ith

an a

utom

atic

spr

inkl

er s

yste

m; S

= B

uild

ings

equ

ippe

d th

roug

hout

wit

h an

aut

omat

ic

spri

nkle

r sy

stem

inst

alle

d in

acc

orda

nce

wit

h S

ecti

on 9

03.3

.1.1

; S13

R =

Bui

ldin

gs e

quip

ped

thro

ugho

ut w

ith

an a

utom

atic

spr

inkl

er s

yste

m in

stal

led

in

acco

rdan

ce w

ith

Sec

tion

903

.3.1

.2.

a.Se

e C

hapt

ers

4 an

d 5

for

spec

ific

exc

epti

ons

to th

e al

low

able

hei

ght i

n th

is c

hapt

er.

b.Se

e Se

ctio

n 90

3.2

for

the

min

imum

thre

shol

ds f

or p

rote

ctio

n by

an

auto

mat

ic s

prin

kler

sys

tem

for

spe

cifi

c oc

cupa

ncie

s.c.

New

Gro

up H

occ

upan

cies

are

req

uire

d to

be

prot

ecte

d by

an

auto

mat

ic s

prin

kler

sys

tem

in a

ccor

danc

e w

ith

Sect

ion

903.

2.5.

d.T

he N

S v

alue

is o

nly

for

use

in e

valu

atio

n of

exi

stin

g bu

ildi

ng h

eigh

t in

acco

rdan

ce w

ith

the

Inte

rnat

iona

l Exi

stin

g B

uild

ing

Cod

e.e.

New

Gro

up I

-1 a

nd I

-3 o

ccup

anci

es a

re r

equi

red

to b

e pr

otec

ted

by a

n au

tom

atic

spr

inkl

er s

yste

m i

n ac

cord

ance

wit

h Se

ctio

n 90

3.2.

6. F

or n

ew G

roup

I-1

occu

panc

ies

Con

diti

on 1

, see

Exc

epti

on 1

of

Sect

ion

903.

2.6.

f.N

ew a

nd e

xist

ing

Gro

up I

-2 o

ccup

anci

es a

re r

equi

red

to b

e pr

otec

ted

by a

n au

tom

atic

spr

inkl

er s

yste

m in

acc

orda

nce

wit

h Se

ctio

n 90

3.2.

6 an

d Se

ctio

n 11

03.5

of th

e In

tern

atio

nal F

ire

Cod

e.g.

For

new

Gro

up I

-4 o

ccup

anci

es, s

ee E

xcep

tion

s 2

and

3 of

Sec

tion

903

.2.6

.h.

New

Gro

up R

occ

upan

cies

are

req

uire

d to

be

prot

ecte

d by

an

auto

mat

ic s

prin

kler

sys

tem

in a

ccor

danc

e w

ith

Sect

ion

903.

2.8.

OC

CU

PA

NC

Y C

LA

SS

IFIC

AT

ION

TY

PE

OF

CO

NS

TR

UC

TIO

N

SE

E F

OO

TN

OT

ES

TY

PE

IT

YP

E II

TY

PE

III

TY

PE

IVT

YP

E V

AB

AB

AB

HT

AB

A, B

, E, F

, M, S

, UN

Sb

UL

160

6555

6555

6550

40

SU

L18

085

7585

7585

7060

H-1

, H-2

, H-3

, H-5

NS

c, d

UL

160

6555

6555

6550

40S

H-4

NS

c, d

UL

160

6555

6555

6550

40

SU

L18

085

7585

7585

7060

I-1

Con

diti

on 1

, I-3

NS

d, e

UL

160

6555

6555

6550

40

SU

L18

085

7585

7585

7060

I-1

Con

diti

on 2

, I-2

NS

d, f

, eU

L16

065

5565

5565

5040

SU

L18

085

I-4

NS

d, g

UL

160

6555

6555

6550

40

SU

L18

085

7585

7585

7060

R

NS

d, h

UL

160

6555

6555

6550

40

S13

R60

6060

6060

6060

6060

SU

L18

085

7585

7585

7060

GE

NE

RA

L B

UIL

DIN

G H

EIG

HT

S A

ND

AR

EA

S

2015

INT

ER

NA

TIO

NA

L B

UIL

DIN

G C

OD

E®

99

TA

BL

E 5

04.4

a, b

AL

LO

WA

BL

E N

UM

BE

R O

F S

TO

RIE

S A

BO

VE

GR

AD

E P

LA

NE

(con

tinu

ed)

OC

CU

PA

NC

Y C

LA

SS

IFIC

AT

ION

TY

PE

OF

CO

NS

TR

UC

TIO

N

SE

E F

OO

TN

OT

ES

TY

PE

IT

YP

E II

TY

PE

III

TY

PE

IVT

YP

E V

AB

AB

AB

HT

AB

A-1

NS

UL

53

23

23

21

SU

L6

43

43

43

2

A-2

NS

UL

113

23

23

21

SU

L12

43

43

43

2

A-3

NS

UL

113

23

23

21

SU

L12

43

43

43

2

A-4

NS

UL

113

23

23

21

SU

L12

43

43

43

2

A-5

NS

UL

UL

UL

UL

UL

UL

UL

UL

UL

SU

LU

LU

LU

LU

LU

LU

LU

LU

L

BN

SU

L11

53

53

53

2

SU

L12

64

64

64

3

EN

SU

L5

32

32

31

1

SU

L6

43

43

42

2

F-1

NS

UL

114

23

24

21

SU

L12

53

43

53

2

F-2

NS

UL

115

34

35

32

SU

L12

64

54

64

3

H-1

NS

c, d

11

11

11

11

NP

S

H-2

NS

c, d

UL

32

12

12

11

S

H-3

NS

c, d

UL

64

24

24

21

S

H-4

NS

c, d

UL

75

35

35

32

SU

L8

64

64

64

3

H-5

NS

c, d

44

33

33

33

2S

I-1

Con

diti

on 1

NS

d, e

UL

94

34

34

32

SU

L10

54

54

54

3

I-1

Con

diti

on 2

NS

d, e

UL

94

34

34

32

SU

L10

5

I-2

NS

d, f

UL

42

11

NP

11

NP

SU

L5

3

I-3

NS

d, e

UL

42

12

12

21

SU

L5

32

32

33

2

I-4

NSd,

gU

L5

32

32

31

1

SU

L6

43

43

42

2

MN

SU

L11

42

42

43

1

SU

L12

53

53

54

2

GE

NE

RA

L B

UIL

DIN

G H

EIG

HT

S A

ND

AR

EA

S

100

2015

INT

ER

NA

TIO

NA

L B

UIL

DIN

G C

OD

E®

505.

2.1

Are

a lim

itat

ion.

The

agg

rega

te a

rea

of a

mez

za-

nine

or

mez

zani

nes

wit

hin

a ro

om s

hall

be

not g

reat

er th

anon

e-th

ird

of t

he f

loor

are

a of

tha

t ro

om o

r sp

ace

in w

hich

they

are

loc

ated

. The

enc

lose

d po

rtio

n of

a r

oom

sha

ll n

otbe

inc

lude

d in

a d

eter

min

atio

n of

the

flo

or a

rea

of t

hero

om i

n w

hich

the

mez

zani

ne i

s lo

cate

d. I

n de

term

inin

gth

e al

low

able

mez

zani

ne a

rea,

the

are

a of

the

mez

zani

nesh

all n

ot b

e in

clud

ed in

the

floo

r ar

ea o

f th

e ro

om.

Whe

re a

roo

m c

onta

ins

both

a m

ezza

nine

and

an

equi

p-m

ent

plat

form

, th

e ag

greg

ate

area

of

the

two

rais

ed f

loor

leve

ls s

hall

be n

ot g

reat

er th

an tw

o-th

irds

of

the

floo

r ar

eaof

that

roo

m o

r sp

ace

in w

hich

they

are

loca

ted.

Exc

epti

ons:

1.T

he a

ggre

gate

are

a of

mez

zani

nes

in b

uild

ings

and

stru

ctur

es o

f T

ype

I or

II

cons

truc

tion

for

spec

ial i

ndus

tria

l occ

upan

cies

in a

ccor

danc

e w

ith

Sec

tion

503

.1.1

sha

ll b

e no

t gr

eate

r th

an t

wo-

thir

ds o

f th

e fl

oor

area

of

the

room

.

2.T

he a

ggre

gate

are

a of

mez

zani

nes

in b

uild

ings

and

stru

ctur

es o

f T

ype

I or

II

cons

truc

tion

shal

lbe

not

gre

ater

tha

n on

e-ha

lf o

f th

e fl

oor

area

of

the

room

in

build

ings

and

str

uctu

res

equi

pped

thro

ugho

ut w

ith a

n ap

prov

ed a

utom

atic

spr

inkl

ersy

stem

in

acco

rdan

ce w

ith

Sec

tion

903

.3.1

.1 a

ndan

app

rove

d em

erge

ncy

voic

e/al

arm

com

mun

ica-

tion

sys

tem

in a

ccor

danc

e w

ith

Sec

tion

907

.5.2

.2.

505.

2.2

Mea

ns o

f eg

ress

. The

mea

ns o

f eg

ress

for

mez

za-

nine

s sh

all c

ompl

y w

ith

the

appl

icab

le p

rovi

sion

s of

Cha

p-te

r 10

.

TA

BL

E 5

04.4

a, b—

con

tin

ued

AL

LO

WA

BL

E N

UM

BE

R O

F S

TO

RIE

S A

BO

VE

GR

AD

E P

LA

NE

Not

e: U

L =

Unl

imit

ed; N

P =

Not

Per

mit

ted;

NS

= B

uild

ings

not

equ

ippe

d th

roug

hout

wit

h an

aut

omat

ic s

prin

kler

sys

tem

; S =

Bui

ldin

gs e

quip

ped

thro

ugho

ut

wit

h an

aut

omat

ic s

prin

kler

sys

tem

inst

alle

d in

acc

orda

nce

wit

h Se

ctio

n 90

3.3.

1.1;

S13

R =

Bui

ldin

gs e

quip

ped

thro

ugho

ut w

ith

an a

utom

atic

spr

inkl

er s

yste

m

inst

alle

d in

acc

orda

nce

wit

h Se

ctio

n 90

3.3.

1.2.

a.Se

e C

hapt

ers

4 an

d 5

for

spec

ific

exc

epti

ons

to th

e al

low

able

hei

ght i

n th

is c

hapt

er.

b.Se

e Se

ctio

n 90

3.2

for

the

min

imum

thre

shol

ds f

or p

rote

ctio

n by

an

auto

mat

ic s

prin

kler

sys

tem

for

spe

cifi

c oc

cupa

ncie

s.c.

New

Gro

up H

occ

upan

cies

are

req

uire

d to

be

prot

ecte

d by

an

auto

mat

ic s

prin

kler

sys

tem

in a

ccor

danc

e w

ith

Sect

ion

903.

2.5.

d.T

he N

S v

alue

is o

nly

for

use

in e

valu

atio

n of

exi

stin

g bu

ildi

ng h

eigh

t in

acco

rdan

ce w

ith

the

Inte

rnat

iona

l Exi

stin

g B

uild

ing

Cod

e.e.

New

Gro

up I

-1 a

nd I

-3 o

ccup

anci

es a

re r

equi

red

to b

e pr

otec

ted

by a

n au

tom

atic

spr

inkl

er s

yste

m i

n ac

cord

ance

wit

h Se

ctio

n 90

3.2.

6. F

or n

ew G

roup

I-1

occu

panc

ies,

Con

diti

on 1

, see

Exc

epti

on 1

of

Sect

ion

903.

2.6.

f.N

ew a

nd e

xist

ing

Gro

up I

-2 o

ccup

anci

es a

re r

equi

red

to b

e pr

otec

ted

by a

n au

tom

atic

spr

inkl

er s

yste

m in

acc

orda

nce

wit

h Se

ctio

n 90

3.2.

6 an

d Se

ctio

n 11

03.5

of th

e In

tern

atio

nal F

ire

Cod

e.g.

For

new

Gro

up I

-4 o

ccup

anci

es, s

ee E

xcep

tion

s 2

and

3 of

Sec

tion

903

.2.6

.h.

New

Gro

up R

occ

upan

cies

are

req

uire

d to

be

prot

ecte

d by

an

auto

mat

ic s

prin

kler

sys

tem

in a

ccor

danc

e w

ith

Sect

ion

903.

2.8.

OC

CU

PA

NC

Y C

LA

SS

IFIC

AT

ION

TY

PE

OF

CO

NS

TR

UC

TIO

N

SE

E F

OO

TN

OT

ES

TY

PE

IT

YP

E II

TY

PE

III

TY

PE

IVT

YP

E V

AB

AB

AB

HT

AB

R-1

NSd,

hU

L11

44

44

43

2

S13R

44

43

SU

L12

55

55

54

3

R-2

NSd,

hU

L11

4 4

44

43

2

S13R

44

44

3

SU

L12

5 5

55

54

3

R-3

NSd,

hU

L11

44

44

43

3

S13R

44

44

SU

L12

55

55

54

4

R-4

NSd,

hU

L11

44

44

43

2

S13R

44

43

SU

L12

55

55

54

3

S-1

NS

UL

114

23

24

31

SU

L12

53

43

54

2

S-2

NS

UL

115

34

34

42

SU

L12

64

54

55

3

UN

SU

L5

42

32

42

1

SU

L6

53

43

53

2

GE

NE

RA

L B

UIL

DIN

G H

EIG

HT

S A

ND

AR

EA

S

102

2015

INT

ER

NA

TIO

NA

L B

UIL

DIN

G C

OD

E®

TA

BL

E 5

06.2

a, b

AL

LO

WA

BL

E A

RE

A F

AC

TO

R (

At =

NS

, S1,

S13

R, o

r S

M, a

s ap

plic

able

) IN

SQ

UA

RE

FE

ET

(con

tinue

d)

OC

CU

PA

NC

Y

CL

AS

SIF

ICA

TIO

NS

EE

FO

OT

NO

TE

S

TY

PE

OF

CO

NS

TR

UC

TIO

N

TY

PE

IT

YP

E II

TY

PE

III

TY

PE

IVT

YP

E V

AB

AB

AB

HT

AB

A-1

NS

UL

UL

15,5

008,

500

14,0

008,

500

15,0

0011

,500

5,50

0

S1

UL

UL

62,0

0034

,000

56,0

0034

,000

60,0

0046

,000

22,0

00

SMU

LU

L46

,500

25,5

0042

,000

25,5

0045

,000

34,5

0016

,500

A-2

NS

UL

UL

15,5

009,

500

14,0

009,

500

15,0

0011

,500

6,00

0

S1

UL

UL

62,0

0038

,000

56,0

0038

,000

60,0

0046

,000

24,0

00

SMU

LU

L46

,500

28,5

0042

,000

28,5

0045

,000

34,5

0018

,000

A-3

NS

UL

UL

15,5

009,

500

14,0

009,

500

15,0

0011

,500

6,00

0

S1

UL

UL

62,0

0038

,000

56,0

0038

,000

60,0

0046

,000

24,0

00

SMU

LU

L46

,500

28,5

0042

,000

28,5

0045

,000

34,5

0018

,000

A-4

NS

UL

UL

15,5

009,

500

14,0

009,

500

15,0

0011

,500

6,00

0

S1

UL

UL

62,0

0038

,000

56,0

0038

,000

60,0

0046

,000

24,0

00

SMU

LU

L46

,500

28,5

0042

,000

28,5

0045

,000

34,5

0018

,000

A-5

NS

UL

UL

UL

UL

UL

UL

UL

UL

UL

S1

SM

B

NS

UL

UL

37,5

0023

,000

28,5

0019

,000

36,0

0018

,000

9,00

0

S1

UL

UL

150,

000

92,0

0011

4,00

076

,000

144,

000

72,0

0036

,000

SMU

LU

L11

2,50

069

,000

85,5

0057

,000

108,

000

54,0

0027

,000

E

NS

UL

UL

26,5

0014

,500

23,5

0014

,500

25,5

0018

,500

9,50

0

S1

UL

UL

106,

000

58,0

0094

,000

58,0

0010

2,00

074

,000

38,0

00

SMU

LU

L79

,500

43,5

0070

,500

43,5

0076

,500

55,5

0028

,500

F-1

NS

UL

UL

25,0

0015

,500

19,0

0012

,000

33,5

0014

,000

8,50

0

S1

UL

UL

100,

000

62,0

0076

,000

48,0

0013

4,00

056

,000

34,0

00

SMU

LU

L75

,000

46,5

0057

,000

36,0

0010

0,50

042

,000

25,5

00

F-2

NS

UL

UL

37,5

0023

,000

28,5

0018

,000

50,5

0021

,000

13,0

00

S1

UL

UL

150,

000

92,0

0011

4,00

072

,000

202,

000

84,0

0052

,000

SMU

LU

L11

2,50

069

,000

85,5

0054

,000

151,

500

63,0

0039

,000

H-1

NS

c

21,0

0016

,500

11,0

007,

000

9.50

07,

000

10,5

007,

500

NP

S1

H-2

NS

c

21,0

0016

,500

11,0

007,

000

9.50

07,

000

10,5

007,

500

3,00

0S

1

SM

H-3

NS

c

UL

60,0

0026

,500

14,0

0017

,500

13,0

0025

,500

10,0

005,

000

S1

SM

H-4

NSc,

dU

LU

L37

,500

17,5

0028

,500

17,5

0036

,000

18,0

006,

500

S1

UL

UL

150,

000

70,0

0011

4,00

070

,000

144,

000

72,0

0026

,000

SMU

LU

L11

2,50

052

,500

85,5

0052

,500

108,

000

54,0

0019

,500

H-5

NSc,

dU

LU

L37

,500

23,0

0028

,500

19,0

0036

,000

18,0

009,

000

S1

UL

UL

150,

000

92,0

0011

4,00

076

,000

144,

000

72,0

0036

,000

SMU

LU

L11

2,50

069

,000

85,5

0057

,000

1080

0054

,000

27,0

00

GE

NE

RA

L B

UIL

DIN

G H

EIG

HT

S A

ND

AR

EA

S

2015

INT

ER

NA

TIO

NA

L B

UIL

DIN

G C

OD

E®

103

TA

BL

E 5

06.2

a, b—

con

tin

ued

AL

LO

WA

BL

E A

RE

A F

AC

TO

R (

At =

NS

, S1,

S13

R, o

r S

M, a

s ap

plic

able

) IN

SQ

UA

RE

FE

ET

(con

tinue

d)

OC

CU

PA

NC

Y

CL

AS

SIF

ICA

TIO

NS

EE

FO

OT

NO

TE

S

TY

PE

OF

CO

NS

TR

UC

TIO

N

TY

PE

IT

YP

E II

TY

PE

III

TY

PE

IVT

YP

E V

AB

AB

AB

HT

AB

I-1

NSd,

eU

L55

,000

19,0

0010

,000

16,5

0010

,000

18,0

0010

,500

4,50

0

S1

UL

220,

000

76,0

0040

,000

66,0

0040

,000

72,0

0042

,000

18,0

00

SMU

L16

5,00

057

,000

30,0

0049

,500

30,0

0054

,000

31,5

0013

,500

I-2

NS

d, f

UL

UL

15,0

0011

,000

12,0

00N

P12

,000

9,50

0N

P

S1

UL

UL

60,0

0044

,000

48,0

00N

P48

,000

38,0

00N

P

SMU

LU

L45

,000

33,0

0036

,000

NP

36,0

0028

,500

NP

I-3

NSd,

eU

LU

L15

,000

10,0

0010

,500

7,50

012

,000

7,50

05,

000

S1

UL

UL

45,0

0040

,000

42,0

0030

,000

48,0

0030

,000

20,0

00

SMU

LU

L45

,000

30,0

0031

,500

22,5

0036

,000

22,5

0015

,000

I-4

NS

d, g

UL

60.5

0026

,500

13,0

0023

,500

13,0

0025

,500

18,5

009,

000

S1

UL

121,

000

106,

000

52,0

0094

,000

52,0

0010

2,00

074

,000

36,0

00

SMU

L18

1,50

079

,500

39,0

0070

,500

39,0

0076

,500

55,5

0027

,000

M

NS

UL

UL

21,5

0012

,500

18,5

0012

,500

20,5

0014

,000

9,00

0

S1

UL

UL

86,0

0050

,000

74,0

0050

,000

82,0

0056

,000

36,0

00

SMU

LU

L64

,500

37,5

0055

,500

37,5

0061

,500

42,0

0027

,000

R-1

NS

d, h

UL

UL

24,0

0016

,000

24,0

0016

,000

20,5

0012

,000

7,00

0S

13R

S1

UL

UL

96,0

0064

,000

96,0

0064

,000

82,0

0048

,000

28,0

00

SMU

LU

L72

,000

48,0

0072

,000

48,0

0061

,500

36,0

0021

,000

R-2

NS

d, h

UL

UL

24,0

0016

,000

24,0

0016

,000

20,5

0012

,000

7,00

0S

13R

S1

UL

UL

96,0

0064

,000

96,0

0064

,000

82,0

0048

,000

28,0

00

SMU

LU

L72

,000

48,0

0072

,000

48,0

0061

,500

36,0

0021

,000

R-3

NS

d, h

UL

UL

UL

UL

UL

UL

UL

UL

UL

S13

R

S1

SM

R-4

NS

d, h

UL

UL

24,0

0016

,000

24,0

0016

,000

20,5

0012

,000

7,00

0S

13R

S1

UL

UL

96,0

0064

,000

96,0

0064

,000

82,0

0048

,000

28,0

00

SMU

LU

L72

,000

48,0

0072

,000

48,0

0061

,500

36,0

0021

,000

S-1

NS

UL

48,0

0026

,000

17,5

0026

,000

17,5

0025

,500

14,0

009,

000

S1

UL

192,

000

104,

000

70,0

0010

4,00

070

,000

102,

000

56,0

0036

,000

SMU

L14

4,00

078

,000

52,5

0078

,000

52,5

0076

,500

42,0

0027

,000

S-2

NS

UL

79,0

0039

,000

26,0

0039

,000

26,0

0038

,500

21,0

0013

,500

S1

UL

316,

000

156,

000

104,

000

156,

000

104,

000

154,

000

84,0

0054

,000

SMU

L23

7,00

011

7,00

078

,000

117,

000

78,0

0011

5,50

063

,000

40,5

00

U

NS

UL

35,5

0019

,000

8,50

014

,000

8,50

018

,000

9,00

05,

500

S1

UL

142,

000

76,0

0034

,000

56,0

0034

,000

72,0

0036

,000

22,0

00

SMU

L10

6,50

057

,000

25,5

0042

,000

25,5

0054

,000

27,0

0016

,500

GE

NE

RA

L B

UIL

DIN

G H

EIG

HT

S A

ND

AR

EA

S

104

2015

INT

ER

NA

TIO

NA

L B

UIL

DIN

G C

OD

E®

506.

2.3

Sing

le-o

ccup

ancy

, m

ulti

stor

y bu

ildin

gs.

The

allo

wab

le a

rea

of a

sin

gle-

occu

panc

y bu

ildin

g w

ith

mor

eth

an o

ne s

tory

abo

ve g

rade

pla

ne s

hall

be

dete

rmin

ed i

nac

cord

ance

wit

h E

quat

ion

5-2:

Aa =

[A

t + (

NS

× I

f)] ×

Sa

(Equ

atio

n 5-

2)

whe

re:

Aa

=A

llow

able

are

a (s

quar

e fe

et).

At

=T

abul

ar a

llow

able

are

a fa

ctor

(N

S,

S13

R o

r S

Mva

lue,

as

ap

plic

able

) in

ac

cord

ance

w

ith

Tab

le50

6.2.

NS

=T

abul

ar a

llow

able

are

a fa

ctor

in

acco

rdan

ce w

ith

Tab

le

506.

2 fo

r a

nons

prin

kler

ed

build

ing

(reg

ardl

ess

of w

heth

er th

e bu

ildin

g is

spr

inkl

ered

).

I f =

Are

a fa

ctor

inc

reas

e du

e to

fro

ntag

e (p

erce

nt)

asca

lcul

ated

in a

ccor

danc

e w

ith

Sec

tion

506

.3.

S a =

Act

ual

num

ber

of

build

ing

stor

ies

abov

e gr

ade

plan

e, n

ot t

o ex

ceed

thr

ee.

For

bui

ldin

gs e

quip

ped

thro

ugho

ut

wit

h an

au

tom

atic

sp

rink

ler

syst

emin

stal

led

in a

ccor

danc

e w

ith

Sec

tion

903

.3.1

.2,

use

the

actu

al n

umbe

r of

bui

ldin

g st

orie

s ab

ove

grad

epl

ane,

not

to e

xcee

d fo

ur.

No

indi

vidu

al s

tory

sha

ll e

xcee

d th

e al

low

able

are

a (A

a)as

det

erm

ined

by

Equ

atio

n 5-

2 us

ing

the

valu

e of

Sa =

1.

506.

2.4

Mix

ed-o

ccup

ancy

, m

ulti

stor

y bu

ildin

gs.

Eac

hst

ory

of a

mix

ed-o

ccup

ancy

bui

ldin

g w

ith

mor

e th

an o

nest

ory

abov

e gr

ade

plan

e sh

all i

ndiv

idua

lly c

ompl

y w

ith th

eap

plic

able

req

uire

men

ts o

f Se

ctio

n 50

8.1.

For

bui

ldin

gsw

ith m

ore

than

thr

ee s

tori

es a

bove

gra

de p

lane

, th

e to

tal

buil

ding

are

a sh

all

be s

uch

that

the

agg

rega

te s

um o

f th

era

tios

of

the

actu

al a

rea

of e

ach

stor

y di

vide

d by

the

allo

w-

able

are

a of

suc

h st

orie

s, d

eter

min

ed i

n ac

cord

ance

wit

hE

quat

ion

5-3

base

d on

the

appl

icab

le p

rovi

sion

s of

Sec

tion

508.

1, s

hall

not

exc

eed

thre

e.

Aa =

[A

t +(N

S ×

If)]

(E

quat

ion

5-3)

whe

re:

Aa

=A

llow

able

are

a (s

quar

e fe

et).

At

=T

abul

ar a

llow

able

are

a fa

ctor

(N

S,

S13

R o

r S

Mva

lue,

as

ap

plic

able

) in

ac

cord

ance

w

ith

Tab

le50

6.2.

NS

=T

abul

ar a

llow

able

are

a fa

ctor

in

acco

rdan

ce w

ith

Tab

le

506.

2 fo

r a

nons

prin

kler

ed

build

ing

(reg

ardl

ess

of w

heth

er th

e bu

ildin

g is

spr

inkl

ered

).

I f =

Are

a fa

ctor

inc

reas

e du

e to

fro

ntag

e (p

erce

nt)

asca

lcul

ated

in a

ccor

danc

e w

ith

Sec

tion

506

.3.

Exc

epti

on:

For

bui

ldin

gs d

esig

ned

as s

epar

ated

occ

u-pa

ncie

s un

der

Sec

tion

508.

4 an

d eq

uipp

ed t

hrou

ghou

tw

ith

an a

utom

atic

spr

inkl

er s

yste

m i

nsta

lled

in

acco

r-da

nce

wit

h S

ectio

n 90

3.3.

1.2,

the

tot

al b

uild

ing

area

shal

l be

such

that

the

aggr

egat

e su

m o

f th

e ra

tios

of

the

actu

al a

rea

of e

ach

stor

y di

vide

d by

the

all

owab

le a

rea

of s

uch

stor

ies

dete

rmin

ed in

acc

orda

nce

wit

h E

quat

ion

5-3

base

d on

th

e ap

plic

able

pr

ovis

ions

of

S

ectio

n50

8.1,

sha

ll n

ot e

xcee

d fo

ur.

506.

2.4.

1 G

roup

H-2

or

H-3

mix

ed o

ccup

anci

es. F

ora

build

ing

cont

aini

ng G

roup

H-2

or

H-3

occ

upan

cies

,th

e al

low

able

are

a sh

all

be d

eter

min

ed i

n ac

cord

ance

wit

h Se

ctio

n 50

8.4.

2,

with

th

e sp

rink

ler

syst

emin

crea

se a

pplic

able

onl

y to

the

por

tions

of

the

build

ing

not c

lass

ifie

d as

Gro

up H

-2 o

r H

-3.

506.

3 F

ront

age

incr

ease

. Eve

ry b

uild

ing

shal

l adj

oin

or h

ave

acce

ss to

a p

ubli

c w

ay to

rece

ive

an a

rea

fact

or in

crea

se b

ased

on f

ront

age.

Are

a fa

ctor

inc

reas

e sh

all

be d

eter

min

ed i

nac

cord

ance

wit

h S

ecti

ons

506.

3.1

thro

ugh

506.

3.3.

506.

3.1

Min

imum

per

cent

age

of p

erim

eter

. T

o qu

alif

yfo

r an

are

a fa

ctor

inc

reas

e ba

sed

on f

ront

age,

a b

uild

ing

shal

l ha

ve n

ot l

ess

than

25

perc

ent

of i

ts p

erim

eter

on

apu

blic

way

or

open

spa

ce. S

uch

open

spa

ce s

hall

be

eith

eron

the

sam

e lo

t or

ded

icat

ed f

or p

ubli

c us

e an

d sh

all

beac

cess

ed f

rom

a s

tree

t or

appr

oved

fir

e la

ne.

506.

3.2

Min

imum

fro

ntag

e di

stan

ce.

To

qual

ify

for

anar

ea f

acto

r in

crea

se b

ased

on

fron

tage

, th

e pu

blic

way

or

open

spa

ce a

djac

ent

to th

e bu

ildi

ng p

erim

eter

sha

ll h

ave

am

inim

um d

ista

nce

(W)

of 2

0 fe

et (

6096

mm

) m

easu

red

atri

ght a

ngle

s fr

om th

e bu

ildi

ng f

ace

to a

ny o

f th

e fo

llow

ing:

1.T

he c

lose

st in

teri

or lo

t lin

e.

TA

BL

E 5

06.2

a,b—

con

tin

ued

AL

LO

WA

BL

E A

RE

A F

AC

TO

R (

At =

NS

, S1,

S13

R, o

r S

M, a

s ap

plic

able

) IN

SQ

UA

RE

FE

ET

Not

e: U

L =

Unl

imit

ed; N

P =

Not

per

mit

ted;

For

SI:

1 sq

uare

foo

t = 0

.092

9 m

2 .N

S =

Bui

ldin

gs n

ot e

quip

ped

thro

ugho

ut w

ith

an a

utom

atic

spr

inkl

er s

yste

m; S

1 =

Bui

ldin

gs a

max

imum

of

one

stor

y ab

ove

grad

e pl

ane

equi

pped

thro

ugho

ut

wit

h an

aut

omat

ic s

prin

kler

sys

tem

inst

alle

d in

acc

orda

nce

wit

h Se

ctio

n 90

3.3.

1.1;

SM

= B

uild

ings

two

or m

ore

stor

ies

abov

e gr

ade

plan

e eq

uipp

ed th

roug

hout

w

ith

an a

utom

atic

spr

inkl

er s

yste

m in

stal

led

in a

ccor

danc

e w

ith

Sect

ion

903.

3.1.

1; S

13R

= B

uild

ings

equ

ippe

d th

roug

hout

wit

h an

aut

omat

ic s

prin

kler

sys

tem

in

stal

led

in a

ccor

danc

e w

ith

Sec

tion

903

.3.1

.2.

a.S

ee C

hapt

ers

4 an

d 5

for

spec

ific

exc

epti

ons

to th

e al

low

able

hei

ght i

n th

is c

hapt

er.

b.Se

e Se

ctio

n 90

3.2

for

the

min

imum

thre

shol

ds f

or p

rote

ctio

n by

an

auto

mat

ic s

prin

kler

sys

tem

for

spe

cifi

c oc

cupa

ncie

s.c.

New

Gro

up H

occ

upan

cies

are

req

uire

d to

be

prot

ecte

d by

an

auto

mat

ic s

prin

kler

sys

tem

in a

ccor

danc

e w

ith

Sect

ion

903.

2.5.

d.T

he N

S v

alue

is o

nly

for

use

in e

valu

atio

n of

exi

stin

g bu

ildi

ng a

rea

in a

ccor

danc

e w

ith

the

Inte

rnat

iona

l Exi

stin

g B

uild

ing

Cod

e.e.

New

Gro

up I

-1 a

nd I

-3 o

ccup

anci

es a

re r

equi

red

to b

e pr

otec

ted

by a

n au

tom

atic

spr

inkl

er s

yste

m i

n ac

cord

ance

wit

h Se

ctio

n 90

3.2.

6. F

or n

ew G

roup

I-1

occu

panc

ies,

Con

diti

on 1

, see

Exc

epti

on 1

of

Sect

ion

903.

2.6.

f.N

ew a

nd e

xist

ing

Gro

up I

-2 o

ccup

anci

es a

re r

equi

red

to b

e pr

otec

ted

by a

n au

tom

atic

spr

inkl

er s

yste

m in

acc

orda

nce

wit

h Se

ctio

n 90

3.2.

6 an

d Se

ctio

n 11

03.5

of th

e In

tern

atio

nal F

ire

Cod

e.g.

New

Gro

up I

-4 o

ccup

anci

es s

ee E

xcep

tion

s 2

and

3 of

Sec

tion

903

.2.6

.h.

New

Gro

up R

occ

upan

cies

are

req

uire

d to

be

prot

ecte

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