Building / Fire Overview Florida Building Code 2004 Edition With 2005 Supplements Course No. 0004827 Chapters 1- 10

Building / Fire OverviewBuilding / Fire OverviewFlorida Building CodeFlorida Building Code

2004 Edition2004 EditionWith 2005 SupplementsWith 2005 Supplements

Course No. 0004827Course No. 0004827

Chapters 1- 10Chapters 1- 10

OverviewOverview

Chapter 1 Administration Chapter 2 Definitions Chapter 3 Occupancy

Classification Chapter 4 Special Requirements

Based on Occupancy

Chapter 5 Heights and Areas

OverviewOverview

Chapter 6 Type Construction Chapter 7 Fire Resistance Rated

Construction Chapter 8 Interior Finish Chapter 9 Fire Protection

Systems Chapter 10 Means of Egress

Intent of CodesIntent of Codes

Reasonable degree of safety to public in the built environment• Minimum requirements

Fire resistant construction provides: • Life safety to public• Life safety to firefighters• Property protection for building and

exposures

Base Codes for FBC 2004Base Codes for FBC 2004

International Building Code, 2003 edition International Plumbing Code, 2003 edition International Mechanical Code, 2003

edition International Fuel Gas Code, 2003 edition


International Residential Code, 2003 edition International Existing Building Code, 2003

edition National Electrical Code, 2002 edition U. S. Department of Housing and Urban

Development, Fair Housing Guidelines


Substantive criteria from the ASHRAE Standard 90.1-1999

Accessibility provisions of FBC Chapter 11 substituted for IBC Chapter 11

Energy provisions of FBC Chapter 13 substituted for IBC Chapter 13

High Velocity Hurricane Zone provisions retained in FBC 2004

Florida Building Code 2004Florida Building Code 2004

Florida-specific modifications retained

Chapter 1Chapter 1

AdministrationAdministration

AdministrativeAdministrative

Scope. The provisions of the Florida Building Code shall apply to the construction, alteration, movementmovement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal…

…continued

FBC §101.2


…continued

…and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures.

FBC §101.2


Chapter 1 is limited to the administration of the code• Permitting• Plan review• Inspection• Incorporation of former or current

statutory requirements related to construction


Two Exceptions:1. Detached one- and two-family

dwellings and multiple single-family dwellings (town houses) not more than three stories high with separate means of egress and their accessory structures shall comply with the Florida Building Code, Residential.

…continued


Two Exceptions …continued

2. Existing buildings undergoing repair, alterations or additions and a change of occupancy shall be permitted to comply with the Florida Existing Building Code.


Where conflicts exist within code, most restrictive provisions shall govern

Where a conflict exists between a general requirement and a specific requirement, the specific requirement prevails

FBC §102.1


Codes and standards referenced in code shall be considered part of the code to the prescribed extent of each such reference

Where differences occur between provisions of code and referenced codes and standards, the provisions of code shall apply.

FBC §102.4

ApplicabilityApplicability

Manufactured buildings• Relocation of existing manufactured

building does not constitute an alteration

• A relocated building shall comply with wind speed requirements of the new location, using the appropriate wind speed map

…continued

FBC §102.7

ApplicabilityApplicability Manufactured buildings …continued

• If the existing building was manufactured in compliance with the Standard Building Code (prior to March 1, 2002), wind speed map of the Standard Building Code shall be applicable

• If the existing building was manufactured in compliance with the Florida Building Code (after March 1, 2002), the wind speed map of the Florida Building Code shall be applicable

FBC §102.7

PermitsPermits Annual Facility Permit

• Expanded to cover all occupancy classes

• Record keeping and inspection provisions retained

• Removes provisions requiring approval for forms used to keep list/identify all work

• Removes specific authority to revoke or deny future AFPs for pattern of code violations

• (FBC-04 §104.1.2; FBC-01 §104.1.7.1)FBC §105.1.1

PermitsPermits

Emergency Repairs• Allows equipment replacement and

repairs under emergency conditions to be made without permit

• Requires permit application to be submitted next business day

FBC §105.2.1

PermitsPermits

Minor Repairs. Ordinary minor repairs may be made without permit with with approvalapproval of building official

Minor repairs must meet technical codes and may not include:• Cutting away of walls, partitions, or portions

thereof• Removal or cutting of any structural beam or

load bearing support• Changes affecting means of egress

FBC §105.2.2

PermitsPermits

• Standpipe• Water supply• Sewer• Drainage• Drain leader• Gas, soil, waste,

vent or similar piping

• Electric wiring systems

• Mechanical equipment

• Other work affecting public health or general safety

Minor repairs must meet technical codes and may notnot include addition to, or alteration of:

Minor repairs must meet technical codes and may notnot include addition to, or alteration of:

FBC §105.2.2

PermitsPermits

Permit Intent.• Section modified by 2005 Supplement• 105.4.1 Permit intent. A permit

issued shall be construed constructed to be a license to proceed with the work… [Remaining text unchanged]

FBC §105.4.1

PermitsPermits

Work starting before permit issuance • Provides authority to building official to

allow work to start before permit issuance• Limited to work described in permit

application and plan• Provides any work is entirely at risk of

permit applicant• Prohibits work beyond the first required

inspection

FBC §105.12

PermitsPermits

Phased permit approval• Provides authority to issue permit for

foundation or any other part of building before the construction documents for the whole building or structure have been submitted

• Requires submittal of the appropriate construction documents for elements to be built

…continued

FBC §105.13

PermitsPermits

Phased permit approval…continued

• Places holder of permit at holder’s own risk with the building operation and without assurance that a permit for the entire structure will be granted

• Corrections may be required to meet the requirements of the technical codes

FBC §105.13

PermitsPermits

Supervision of work by architect or engineer required

Building official shall require:• Supervision by architect or engineer

signing affidavit for permits issued under affidavit

• Supervision by architect or engineer preparing drawings or computations for work determined by building official to be hazardous or complex

FBC §105.14

Construction DrawingsConstruction Drawings

Fire Protection System Shop Drawings• Submittal and approval required prior to

the start of system installation • Shop drawings shall contain all

information as required by the referenced installation standards in Chapter 9

FBC §106.1.1.1


Requires building official to verify review for code compliance via stamp or in writing

Requires one set reviewed documents to be retained by building official and one set on site

FBC §106.3.1


Adds language requiring construction in accordance with approved construction documents

Requires changes made during construction not in accordance with approved construction documents be resubmitted for approval as an amended set of construction documents

FBC §106.4


Adds language requiring the retention of one set of approved construction documents for at least 180 days after completion of work, or as required by Florida statutes

FBC §106.5


Section of FBC 2001 requiring detailing of how structural and fire resistance integrity to be maintained at penetrations eliminated

FBC §104.2.3

InspectionsInspections

Modifies required building inspections to require inspection of foundations and connection thereto for manufactured buildings

2005 Supplement modifies No. 7 Demolition Inspections to change word exit to exist

FBC §109.3

Certificate of OccupancyCertificate of Occupancy Provides for contents of certificate

of occupancy• Permit number• Address• Name and address of owner• Description of portion of structure for

which certificate is issued• Statement that described portion of

structure has been inspected for compliance with code

…continued

FBC §110.2

Certificate of OccupancyCertificate of Occupancy

Information on certificate of occupancy…continued• Name of building official• Edition of code under which permit issued• Use and occupancy in accordance with Chapter

3• Type construction in accordance with Chapter 6• Design occupant load• Where sprinkler system provided, if the system

was required• Any special conditions of the permit

FBC §110.2

Certificate of OccupancyCertificate of Occupancy

Provides for suspension or revocation of certificate of occupancy or completion• By building official in writing• When certificate issued in error• When certificate issued on basis of

incorrect information• Where building is in violation of any

ordinance, regulation, or the code

FBC §110.4

Stop Work OrdersStop Work Orders

Adds section providing authority to issue stop work orders

May be for work in violation of code or performed in a dangerous or unsafe manner

Required to state reason for order and conditions under which cited work will be permitted to resume

FBC §114.1

Chapter 2Chapter 2

DefinitionsDefinitions

DefinitionsDefinitions

General definitions found in Chapter 2

In addition, other definitions found in various chapters of code

DefinitionsDefinitions 2005 Supplement Section 202 Change to add a

new definition of “Means of Escape” to read as shown:

MEANS OF ESCAPE. A way out of a building or structure that does not conform to the strict definition of means of egress but does provide an alternate way out. A means of escape consists of a door, stairway, passage or hall providing a way of unobstructed travel to the outside at street or ground level that is independent of and remotely located from the means of egress. It may also consist of a passage through an adjacent nonlockable space, independent of and remotely located from the means of egress, to any approved exit.

Chapter 3Chapter 3

Occupancy Occupancy ClassificationClassification

Classification of OccupancyClassification of Occupancy

Establishes separation/protection requirements for incidental use areas

Establishes accessory use requirements

Establishes mixed use criteria• Non-separated uses• Separated uses

New section for different uses of same space

Incidental Use AreasIncidental Use Areas

Spaces incidental to main occupancy • Separated or protected or both as

required by Table 302.1.1, oror the building is classified a mixed occupancy and required to comply with §302.3, Mixed Occupancies

Exception: Incidental use areas within and serving a dwelling unit not subject to these provisions.

FBC §302.1.1

TABLE 302.1.1: INCIDENTAL USE AREASTABLE 302.1.1: INCIDENTAL USE AREASROOM OR AREAROOM OR AREA SEPARATIONSEPARATIONaa

Furnace room where any piece of equipment is over 400,000 Btu per hour input

1 hour or provide automatic fire-extinguishing system

Rooms with any boiler over 15 psi and 10 horsepower 1 hour or provide automatic fire-extinguishing system

Refrigerant machinery rooms 1 hour or provide automatic sprinkler system

Parking garage (Section 406.2) 2 hours; or 1 hour and provide automatic fire-extinguishing system

Hydrogen cut-off rooms 1-hour fire barriers and floor/ceiling assemblies in Group B, F, H, M, S and U occupancies. 2-hour fire barriers and floor/ceiling assemblies in Group A, E, I and R occupancies.

Incinerator rooms 2 hours and automatic sprinkler system

Paint shops, not classified as Group H, located in occupancies other than Group F

2 hours; or 1 hour and provide automatic fire-extinguishing system

Laboratories and vocational shops, not classified as Group H, located in Group E or I-2 occupancies


Laundry rooms over 100 square feet 1 hour or provide automatic fire-extinguishing system

Storage rooms over 100 square feet 1 hour or provide automatic fire-extinguishing system

Group I-3 cells equipped with padded surfaces 1 hour

Group I-2 waste and linen collection rooms 1 hour

Waste and linen collection rooms over 100 square feet 1 hour or provide automatic fire-extinguishing system

Stationary lead-acid battery systems having a liquid capacity of more than 100 gallons used for facility standby power, emergency power or uninterrupted power supplies

1-hour fire barriers and floor/ceiling assemblies in Group B, F, H, M, S and U occupancies. 2-hour fire barriers and floor/ceiling assemblies in Group A, E, I and R occupancies

For SI: 1 sq ft = 0.0929 m2, 1 lb per sq in = 6.9 kPa, 1 British thermal unit = 0.293 watts, 1 horsepower = 746 watts, 1 gallon = 3.785 L.

a. Where an automatic fire-extinguishing system is provided, it need only be provided in the incidental use room or area.


Areas classified same as main occupancy • Where Table 302.1.1 requires

separation, a fire barrier in accordance with FBC §706 required

• Where Table 302.1.1 permits suppression with no separation, incidental use area is separated by construction capable of resisting the passage of smoke

FBC §302.1.1

TABLE 302.1.1: INCIDENTAL USE AREASTABLE 302.1.1: INCIDENTAL USE AREASROOM OR AREAROOM OR AREA SEPARATIONSEPARATIONaa

Furnace room where any piece of equipment is over 400,000 Btu per hour input


Rooms with any boiler over 15 psi and 10 horsepower 1 hour or provide automatic fire-extinguishing system

Refrigerant machinery rooms 1 hour or provide automatic sprinkler system

Parking garage (Section 406.2) 2 hours; or 1 hour and provide automatic fire-extinguishing system

Hydrogen cut-off rooms 1-hour fire barriers and floor/ceiling assemblies in Group B, F, H, M, S and U occupancies. 2-hour fire barriers and floor/ceiling assemblies in Group A, E, I and R occupancies.

Incinerator rooms 2 hours and automatic sprinkler system

Paint shops, not classified as Group H, located in occupancies other than Group F

2 hours; or 1 hour and provide automatic fire-extinguishing system

Laboratories and vocational shops, not classified as Group H, located in Group E or I-2 occupancies


Laundry rooms over 100 square feet 1 hour or provide automatic fire-extinguishing system

Storage rooms over 100 square feet 1 hour or provide automatic fire-extinguishing system

Group I-3 cells equipped with padded surfaces 1 hour

Group I-2 waste and linen collection rooms 1 hour

Waste and linen collection rooms over 100 square feet 1 hour or provide automatic fire-extinguishing system

Stationary lead-acid battery systems having a liquid capacity of more than 100 gallons used for facility standby power, emergency power or uninterrupted power supplies

1-hour fire barriers and floor/ceiling assemblies in Group B, F, H, M, S and U occupancies. 2-hour fire barriers and floor/ceiling assemblies in Group A, E, I and R occupancies

For SI: 1 sq ft = 0.0929 m2, 1 lb per sq in = 6.9 kPa, 1 British thermal unit = 0.293 watts, 1 horsepower = 746 watts, 1 gallon = 3.785 L.

a. Where an automatic fire-extinguishing system is provided, it need only be provided in the incidental use room or area.


Partitions shall extend from the floor to the underside of the fire rated floor/ceiling assembly or fire rated roof/ceiling assembly or to the underside of the floor or roof deck above

Doors shall be self-closing or automatic-closing upon detection of smoke• Doors shall not have air transfer openings • Doors shall not be undercut in excess of the

clearance permitted by NFPA 80

FBC §302.1.1

Floor or roof deck

Walls to extend tight to deck or rated assembly

Floor

Fire-resistance-rated floor/ceiling or roof/ceiling assembly

Walls to be constructed to resist passage of smoke

Note: Doors shall • be self-closing or automatic closing upon detection of smoke

• have no air transfer openings• have no excessive undercuts

Accessory Use AreasAccessory Use Areas

Fire barrier required to separate all accessory use areas classified as Group H• Treated as mixed occupancy required to be

separated by a fire barrier in accordance with §302.3.2 and Table 302.3.2

Incidental use areas required to be separated by Table 302.1.1, shall be separated in accordance with §302.1.1.1• Fire barrier or partitions capable of resisting

passage of smoke

Accessory Use AreasAccessory Use Areas

Any other accessory use area shall not be required to be separated by a fire barrier provided: • The accessory use area occupies an

area not more than 10 percent of the area of the story in which it is located, and

• Does not exceed the tabular values in Table 503 for the allowable height or area for such use.

FBC §302.2

Accessory Assembly AreasAccessory Assembly Areas

Accessory assembly use areas not considered separate occupancies if the floor area is equal to or less than 750 square feet

Assembly use areas that are accessory to Group E are not considered separate occupancies

Accessory religious educational rooms and religious auditoriums with occupant loads of less than 100 are not considered separate occupancies

FBC §302.2.1

Accessory use area

No fire barrier required

Group F-1

Incinerator room or other incidental use area

Accessory use ≤10,000 sq ft (Non-Group H or Incidental use)

Group H of any permitted size

Fire barrier required as per Table 302.1.1

Separation and/or protection required

Building of 100,000 sq ft

Mixed Occupancy ClassMixed Occupancy Class

Where a building is occupied by two or more uses not included in the same occupancy classification, the building or portion thereof shall comply with Section 302.3.1, Non-separated Uses, or 302.3.2, Separated Uses, or a combination of these sections

Exceptions:

FBC §302.3

Mixed Occupancy ClassMixed Occupancy Class Exceptions:

1. Occupancies separated in accordance with Section 508

2. Areas of Group H-2, H-3, H-4 or H-5 occupancies shall be separated from any other occupancy in accordance with Section 302.3.2, Separated Uses

3. Where required by Table 415.3.2, areas of Group H-1, H-2 or H-3 occupancy shall be located in a separate and detached building or structure

…continued

FBC §302.3


Exceptions:…continued

4. Accessory use areas in accordance with Section 302.2

5. Incidental use areas in accordance with Section 302.1.1

FBC §302.3


Two options available for designing mixed occupancy buildings• Option 1—Non-Separated• Option 2—Separated

Options 1 or 2, or any combination thereof, may be used in a building

FBC §302.3.2


Option 1—Non-separated uses:• Each portion of the building shall be

individually classified as to use• The required type of construction for the

building shall be determined by applying the height and area limitations for each of the applicable occupancies to the entire building

• The most restrictive type of construction, so determined, shall apply to the entire building

…continued

FBC §302.3.1


Option 1—Non-separated uses…continued• All other code requirements shall apply to

each portion of the building based on the use of that space except that the most restrictive applicable provisions of Section 403 (High Rise) and Chapter 9 shall apply to these non-separated uses

• Fire separations are not required between uses, except as required by other provisions

FBC §302.3.1

•Type of construction limited by: Lesser height limit of Occupancy 1 or 2 Lesser floor area limit of Occupancy 1 or 2

•Most restrictive fire-protection system requirements of Occupancy 1 and 2 (also high-rise provisions

Occupancy 1 Occupancy 2

No fire separation required


Option 2—Separated uses:• Each portion of the building shall be

individually classified as to use and shall be completely separated from adjacent areas by fire barrier walls or horizontal assemblies or both having a fire-resistance rating determined in accordance with Table 302.3.2

• Each fire area shall comply with this code based on the use of that space

…continued

FBC §302.3.2


Option 2—Separated uses…continued• Each fire area shall comply with the height

limitations based on the use of that space and the type of construction classification

• In each story, the building area shall be such that the sum of the ratios of the floor area of each use divided by the allowable area for each use shall not exceed one

…continued

FBC §302.3.2


Option 2 Exception:…continued

• Except for Group H and I-2 areas, where the building is equipped throughout with an automatic sprinkler system, installed in accordance with section 903.3.1.1, the fire-resistance ratings in Table 302.3.2 shall be reduced by 1 hour but to not less than 1 hour and to not less than that required for floor construction according to the type of construction.

FBC §302.3.2

1-hour fire-resistance-rated physical separation required. See Table 302.3.3

Group S-1storage

Group Boffices

Group F-1manufacturing

Group H-3hazardousmaterial storage

* Minimum fire-resistance rating based on Section 302.3.3 and Table 302.3.3

Fire-resistance-rated fire barrier*

Occupancy 1

Occupancy 3Occupancy 2

Fire-resistance-rated horizontal assembly*


Options 1 or 2, or any combination thereof, may be used in a building

FBC §302.3.2

Group A - AssemblyGroup A - Assembly Group A includes, among others, the use of

a building or structure, or a portion thereof, for the gathering together of persons for purposes such as civic, social or religious functions, recreation, food or drink consumption or awaiting transportation• A room or space used for assembly purposes by

less than 50 persons and accessory to another occupancy shall be included as a part of that occupancy

• Assembly areas with less than 750 square feet and which are accessory to another occupancy according to Section 302.2.1 are not assembly occupancies (Continued … )

FBC §303.1

Group A - AssemblyGroup A - Assembly

(Continued … )• Assembly occupancies which are

accessory to Group E in accordance with Section 302.2 are not considered assembly occupancies

• Religious educational rooms and religious auditoriums which are accessory to churches in accordance with Section 302.2 and which have occupant loads of less than 100 shall be classified as A-3.

FBC §303.1

Group A-2Group A-2•Banquet halls•Night clubs•Restaurants•Taverns

Group A-3Group A-3•Art galleries •Gymnasiums•Churches • Lecture halls•Community halls • Libraries•Conference rooms • Museums•Exhibition halls • Passenger stations

Group A-4Group A-4•Arenas•Skating rinks•Swimming pools

Group A-5Group A-5•Bleachers•Grandstands•Stadiums

Group A-1Group A-1•Motion picture theatres•Theaters

Group A - AssemblyGroup A - Assembly

Restaurants and drinking establishments with an occupant load of less than 50 persons classified as Group M, Mercantile.

FBC §303.1.1

Group F - FactoryGroup F - Factory Creates three subcategories:

• Factory Industrial F-1 Moderate-Hazard Occupancy

Factory industrial uses which are not classified as Factory Industrial F-2 Low Hazard shall be classified Factory Industrial F-1 Moderate Hazard

• Factory Industrial F-2 Low-Hazard Occupancy

Factory industrial uses that involve the fabrication or manufacturing of noncombustible materials which during finishing, packing or processing do not involve a significant fire hazard shall be classified as F-2 occupancies

…continued

FBC §306

Group F - FactoryGroup F - Factory

Creates three subcategories:…continued

• Special purpose F-3 Factory-industrial occupancy includes

industrial operations in buildings designed for and suitable only for particular types of operations, characterized by a relatively low density of employee population, with much of the area occupied by machinery or equipment

FBC §306

Group IGroup I

Expanded to three categories Increases threshold from 4 to 5 for

former Group I – Unrestrained Eliminates subcategories of

Residential Care/Assisted Living Facilities• More than 16 occupants Group I-1• 5 to 16 occupants classified Group R-4

FBC §308.2; §310.1

Group I-4 in IBC eliminated in favor of FBC §313 Group D–Day Care

Group I-1Group I-1•Residential board & care facilities•Assisted living facilities•Half-way houses•Group homes•Congregate care facilities•Social rehabilitation facilities•Alcohol and drug centers•Convalescent facilities

•Group I-3Group I-3•Prisons•Jails•Reformatories•Detention centers•Correction centers•Prerelease centers

Group I-2Group I-2•Hospitals•Nursing homes•Mental hospitals•Detoxification facilities•Infant care (24-hr basis)

IBC Group I-4IBC Group I-4• Adult custodial

care facilities• Child custodial

care facilities

Group R - ResidentialGroup R - Residential

Limits Group R-4 Assisted Care Facilities to 16 occupants, excluding staff

FBC §310

Group U – UtilityGroup U – Utilityand Miscellaneousand Miscellaneous

• Aircraft hangars, accessory to a one- or two-family residence

• Barns• Carports• Fences more than 6

feet high• Grain silos, accessory

to a residential occupancy

• Greenhouses• Livestock shelters• Private garages• Retaining walls• Sheds• Stables• Tanks• Towers

FBC §312

Chapter 4Chapter 4

Special Detailed Special Detailed Requirements BasedRequirements Based

on Use and on Use and OccupancyOccupancy

Special Design CriteriaSpecial Design Criteria

Code carries forward special design criteria from rules previously promulgated by state agencies that addressed construction

Special Design CriteriaSpecial Design Criteria 419: Hospitals

420: Nursing Homes

421: Ambulatory Surgical

Centers

422: Birthing Centers

423: Public Education Occupancy

424: Swimming Pools and Bathing

Places

425: Public Lodging Establishments

426: Public Food Service Establishments

427: Mental Health Programs

Special Design CriteriaSpecial Design Criteria

428: Manufactured Buildings

429: Boot Camps for Children

430: Mausoleums and Columbariums

431: Transient Public Lodging Establishments

432: Use of Asbestos in New Public

Buildings or Buildings Newly Constructed forLease to Government Entities - Prohibition

433: Adult Day Care

434: Assisted Living Facilities

435: Control of Radiation Hazards

Covered MallsCovered Malls

Adds limit for covered mall buildings to three floor levels at any point to existing limit of not more than three stories above grade

Except as specifically required by Section 402, covered mall buildings shall meet applicable provisions of this code

Provides exception from Section 402 for buildings totally complying with other applicable provisions of code

FBC §402.1


Requires submittal of lease plan to building and fire departments afterafter issuance of certificate of occupancy• Must show location of each occupancy

and its exits• No modifications or changes in

occupancy or use from that shown on the lease plan permitted without prior approval of the building official.

FBC §402.3


Means of Egress• Specifies where conflicts between Section

402.4 and code exist, Section 402.4 prevails• Changes method for determining required

means of egress from mall• Number of occupants for whom means of

egress are to be provided based on gross leasable area of the covered mall building (excluding anchor buildings) and the occupant load factor as determined by provided Equation 4-1

FBC §402.4.1.1


Equation 4-1

OLF = (0.00007) (GLA) + 25

where: OLF = The occupant load factor (square

feet/person) GLA = The gross leasable area (square feet)

The occupant load factor (OLF) is not required to be less than 30 and shall not exceed 50

FBC §402.4.1.1


Stipulates occupant load of food courts to be determined in accordance with Section 1004

Occupant load of food court added to occupant load of mall as determined with Equation 4-1

FBC §402.4.1.4


Tenant Spaces – Number of Means of Egress• Threshold requiring two means of

egress decrease from 75 to 50 persons• Specifies 75 ft. travel distance limit

applies to persons other than employees

FBC §402.4.2


Reduces threshold at which entrances for Group A occupancies within mall are required to be immediately adjacent to a principal entrance to the mall• Threshold decreased to 500 occupant

load• Formerly, 1000 or 750

FBC §402.4.3


Permits service rooms such as mechanical rooms, electrical rooms, service areas, and service elevators to open directly onto exit passageways provided:• Passageway is separated from room with

one-hour fire rated walls and opening protectives; and,

• Room is fully sprinklered with no omissionno omission of sprinklers permitted

FBC §402.4.6

High RiseHigh Rise

Permits fire rating of vertical shafts other than exit enclosures and elevator hoist ways to be reduced to one hour when automatic sprinklers are installed within the shafts at the top on alternate floor levels

FBC §403.2

High RiseHigh Rise

Elevator lobby provisions moved to Chapter 7• Lobbies not required for Group B where

fire rated corridors are not required• Lobbies required for Group R where

rated corridors are required

FBC §707.14.1

Atrium Smoke ControlAtrium Smoke Control

404.4 Smoke control. A smoke control system shall be installed in accordance with Section 909.

Exceptions: Smoke control is not required for floor

openings meeting the requirements of Section 707.2, Exception 2, 7, 8 or 9.

Smoke control is not required for floor openings meeting the requirements of Section 1019.1, Exception 8 or 9.

Open Parking GaragesOpen Parking Garages

2005 Supplement Section 406.3.9 Change to read as shown:

406.3.9 Standpipes Sandpipers. Standpipes Sandpipers shall be installed where required by the provisions of Chapter 9.

Public Educational FacilitiesPublic Educational Facilities2005 Supplement2005 Supplement

Section 423.8.2 Change to read as shown: Space standards. School board and community

college board facility sizes shall use standards in the “Size of Space and Occupant Design Criteria Table” table found …. [Remaining text unchanged]

Section 423.11 Change to read as shown: 423.11 Wood: fire-retardant treated wood

(FRTW). FRTW shall not be used in permanent educational facilities. Only FRTW which does not contain ammonium phosphates, sulfates, or halides, may be used in roof structures of noncombustible Type II III ancillary facilities as allowed…[Remaining text unchanged]


Section 423.14.1 Change to read as shown:

423.14.1 Master control switch. In addition to the regular main supply cut-off, each laboratory type space (such as biology, industrial, chemistry, physics, home …[Remaining text unchanged]

Section 423.19. Change to read as shown:

423.19.1 General. Shade/green houses shall be of Type I, or II or IV construction (metal frame) capable of …[Remaining text unchanged)]


Section 423.26.3.2 Change to read as shown:

423.26.3.2 A vision panel shall be provided in the door, and it shall be no larger than 144 square inches (.1 m2). The view panel shall consist of a clear ¼-inch-thick (6 mm m2)… [Remaining text unchanged]

Swimming PoolsSwimming Pools2005 Supplement2005 Supplement

Section 424.2.17.1.9 Change to read as shown:

424.2.17.1.9 Where a wall of a dwelling serves as part of the barrier, one of the following shall apply:1. All doors and windows providing direct access from the home to the pool shall be equipped with an exit alarm complying with UL 2017 that has a minimum sound pressure rating of 85 dBA at 10 feet (3048 mm) and is either hardwired or of the plug-in type. The exit alarm shall produce a continuous audible warning when the door and its screen are opened …

Chapter 5Chapter 5

General Building General Building Heights and Heights and

AreasAreas

Table 503Table 503

Allowable heights and areas based on type construction and building use

Table provides base height and areas

Chapter provides increases thereof

TABLE 601:TABLE 601:FIRE-RESISTANCE RATING REQUIREMENTSFIRE-RESISTANCE RATING REQUIREMENTS

FOR BUILDING ELEMENTS (hrs)FOR BUILDING ELEMENTS (hrs)

BUILDING ELEMENTBUILDING ELEMENTTYPE ITYPE I TYPE IITYPE II TYPE TYPE

IIIIIITYPE TYPE

IVIVTYPE TYPE

VV

A B A B A B HT A B

Structural frame a

Including columns, girders, trusses 3b, g 2b 1 0 1 0 HT 1 0

Bearing wallsExterior f

Interior44b

33b

11

00

21

20

22b/ HT

11

00

Nonbearing walls and partitionsExteriorInterior e

See Table 602See Section 602

Floor constructionIncluding supporting beams and joists 3g 2 1d 0d 1d 0d HT 1 0

Roof constructionIncluding supporting beams and joists 1½ c, g 1c 1c 0 1c 0 HT 1c 0

For SI: 1 foot = 304.8 mm. Footnotes found on next slide.

TABLE 601: FootnotesTABLE 601: Footnotesa The structural frame shall be considered to be the columns and the girders, beams, trusses and

spandrels having direct connections to the columns and bracing members designed to carry gravity loads. The members of floor or roof panels which have no connection to the columns shall be considered secondary members and not a part of the structural frame.

b Fire-resistance ratings of the structural frame and bearing walls are permitted to be reduced by 1 hour where supporting one floor or one roof only.

c 1. Except in Factory-Industrial (F-1), Hazardous (H), Institutional (I), Mercantile (M) and Moderate-Hazard Storage (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.

2. In Type I and II construction, fire-retardant-treated wood shall be allowed in buildings including girders and trusses as part of the roof construction when the building is:

Two stories or less in height;Type II construction over two stories; orType I construction over two stories and the vertical distance from the upper floor to the roof

is 20 feet or more.

d Group B and M occupancies of Type II or III construction five or more stories in height shall be required to have a minimum 2-hour fire resistance rating for the floor construction located over the basement.

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

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

g For Group A, B, E, F and R occupancies and parking garages, the required fire-resistance ratings for the structural frame, floor and roof construction, including supporting beams and joists, shall be permitted to be reduced by 1-hour where the building is protected throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1, but the fire resistance rating shall not be less than 1-hour.

h For unsprinklered Group E occupancies of Type, II-B, III-B, IV orV-B construction, the floor construction located immediately above useable space in basements shall have a fire-resistance rating of not less than 1-hour.

Type of ConstructionType of Construction

Gro

up

Gro

up

Type IType I Type IIType II Type IIIType III Type Type IVIV Type VType V

A B A B A B HT A B

Hgt(ft)

Hgt(S)

UL 160 65 55 65 55 65 50 40

BBS UL 5 5 4 5 4 5 3 2

A UL UL 37,500 23,000 28,500 19,000 36,000 18,000 9,000

F-1F-1S UL 11 4 2 3 2 4 2 1

A UL UL 25,000 15,500 19,000 12,000 33,500 14,000 8,500

F-2F-2S UL 11 5 3 4 3 5 3 2

A UL UL 37,500 23,000 28,500 18,000 50,500 21,000 13,000


Gro

up

Gro

up

Type IType I Type IIType II Type IIIType III Type Type IVIV

Type VType V

A B A B A B HT A B

Hgt (ft)

Hgt(S)

UL160

65 55 65 55 65 50 40

A-1A-1

S UL 5 3 2 3 2 3 2 1

A UL UL 15,000 8,500 14,000 8,500 15,000 11,500 5,500

A-2A-2

S UL 11 3 2 3 2 3 2 1

A UL UL 15,000 9,500 14,000 9,500 15,000 11,500 6,000

A-3A-3

S UL 11 3 2 3 2 3 2 1

A UL UL 15,500 9,500 14,000 9,500 15,000 11,500 6,000

A-4A-4

S UL 11 3 2 3 2 3 2 1

A UL UL 15,500 9,500 14,000 9,500 15,000 11,500 6,000

A-5A-5

S UL UL UL UL UL UL UL UL UL

A UL UL UL UL UL UL UL UL UL


Gro

up

Gro

up

Type IType I Type IIType II Type IIIType III Type Type IVIV Type VType V

Hgt (ft)

Hgt (S)

A B A B A B HT A B

UL 160 65 55 65 55 65 50 40

R-1R-1S UL 11 4 4 4 4 4 3 2

A UL UL 24,000 16,000 24,000 16,000 20,500 12,000 7,000

R-2R-2aS UL 11 4 4 4 4 4 3 2

A UL UL 24,000 16,000 24,000 16,000 20,500 12,000 7,000

R-3R-3aS UL 11 4 4 4 4 4 3 2

A UL UL 24,000 16,000 24,000 16,000 20,500 12,000 7,000

R-4R-4S UL 5 3 2 3 2 3 1 1

A UL 60,500 26,500 13,000 23,500 13,000 25,500 18,500 9,000

Height and Area LimitationsHeight and Area Limitations

The height and area for buildings of different construction types shall be governed by the intended use of the building and shall not exceed the limits in Table 503 except as modified hereafter.

FBC §503.1

Height and Area LimitationsHeight and Area Limitations

Each part of a building included within the exterior walls or the exterior walls and fire walls where provided shall be permitted to be a separate building.

FBC §503.1

Basements as StoryBasements as Story

For purposes of determining allowable building height, basements do not count as story (FBC §503.1.1)

Group A and Group E basements used as classrooms or assembly rooms shall be counted as a story (FBC §503.1.2)

Buildings on Same LotBuildings on Same Lot Buildings on same lot are regulated as

separate buildings, oror Two or more buildingsTwo or more buildings on the same lot

may be considered one building• If the height of each building and the

aggregate area of buildings are within the limitations of Table 503 as modified by Sections 504 and 506

• The provisions of this code applicable to the aggregate building shall be applicable to each building (See §704.3)

FBC §503.1.3

May be considered a single building if the aggregate area is within limits specified in Sections 503, 504 and 505.

Provisions of code applicable to aggregate building to be applicable to each building.

Table 503Table 503R-2, TYPE V-A: Allows 12,000 sq ft per floorR-2, TYPE V-A: Allows 12,000 sq ft per floor

3,000 sq ft2'

7'

3,000 sq ft

3,000 sq ft

3,000 sq ft

Party WallsParty Walls

Any wall located on a property line between adjacent buildings which is used or adapted for joint service between the two buildings, shall be constructed as a fire wall in accordance with Section 705, without openings and shall create separate buildings.

FBC §503.2

Building A Building B

Party wall

Height and Area Height and Area Modifications for SprinklersModifications for Sprinklers

Increases of Table 503 limits permitted for:

Sprinklered buildings• Increases permitted for NFPA 13 systems

Frontage clearance

Height ModificationsHeight Modifications


Special unlimited height• The height of Group B, Group M and Group

R occupancies of Type I-B construction shall not be limited, provided the fire resistance of all columns shall be not less than 3 hours and the other structural members including floors shall be not less than that shown in Chapter 6, but in no case less than 2 hours except that roofs and their supporting beams, girders, trusses and arches shall be not less than 1½ hours. (Florida specific)

FBC §504.1


Exception: The height of one-story aircraft hangars, aircraft paint hangars and buildings used for the manufacturing of aircraft shall not be limited if the building is provided with an automatic fire extinguishing system in accordance with Chapter 9 and is entirely surrounded by public ways or yards not less in width than one and one-half times the height of the building

FBC §504.1


Buildings protected throughout with an approved automatic sprinkler system installed in accordance with Section 903.3.1.1 (NFPA 13)

Max height increased by 20 feet Max number of stories is increased

by one story

FBC §504.2

Increase does not apply when sprinkler installed under the following conditions:

1. Group I-2 of Type IIB, III, IV or V construction2. Group H-1, H-2, H-3 or H-5

Grade plane

Area increase for sprinklers also permitted

Maximum height and number of stories based upon occupancy and type of construction as set forth in Table 503.

Given: a type VA office building is permitted to be 3 stories and 50 feet in height per Table 503.

If sprinkler system installed per Section 504.2, the story limit may be increased by one story, and the height can exceed the limit in Table 503 by 20 feet.

4th storyHeight of building70' maximum(50' + 20' regardless of number of stories)


Group R buildings with approved sprinkler system complying with §903.3.1.2 (NFPA 13R)

Max height is increased by20 feet Max number of stories increased by

one story • Shall not exceed four stories or 60 feet

Increases in addition to area increase

FBC §504.2


Exceptions: 1. Group I-2 of Type IIB, III, IV or V

construction2. Group H-1, H-2, H-3 or H-5

3.3. Fire-resistance rating substitution in Fire-resistance rating substitution in accordance with Table 601accordance with Table 601

FBC §504.2

Increase does not apply when sprinkler installed under the following conditions:

1. Group I-2 of Type IIB, III, IV or V construction2. Group H-1, H-2, H-3 or H-5

Grade plane

Area increase for sprinklers also permitted

Maximum height and number of stories based upon occupancy and type of construction as set forth in Table 503.

Given: a type VA office building is permitted to be 3 stories and 50 feet in height per Table 503.

If sprinkler system installed per Section 504.2, the story limit may be increased by one story, and the height can exceed the limit in Table 503 by 20 feet.

Height of building70' maximum(50' + 20' regardless of number of stories)

4th story

MezzaninesMezzanines

Mezzanine Area LimitationsMezzanine Area Limitations2005 Supplement2005 Supplement

Exceptions: The aggregate area of mezzanines in buildings

and structures of Type I or II construction for special industrial occupancies in accordance with Section 306.4 503.1.2 shall not exceed two-thirds of the area of the room.

In sprinklered S2 occupancies of Type III construction, the enclosed and unenclosed areas under mezzanines shall be allowed to be included when calculating the permissible size of mezzanines.

Area ModificationsArea Modifications

Area ModificationsArea Modifications Table 503 limits increased for frontage (If )

on public way or open space Installation of sprinklers (Is ) Increases are additive

FBC §506.1

(Equation 5-1)

Area ModificationsArea Modifications

100100Stft

ta

IAIAAA

Equation 5-1

FBC §506.1

Where: Aa = Allowable area per floor (square feet)At = Tabular area per floor according to Table 503

(square feet)If = Area increase due to frontage (percent)Is = Area increase due to sprinkler protection (percent)

Area Increase for FrontageArea Increase for Frontage

Where >25% of building perimeter is on public way or open space

Minimum width of public way or open space 20 feet

3025.0100

WPF

If

FBC §506.2

Equation 5-2

Area Increase for FrontageArea Increase for Frontage

3025.0100

WPF

If

Where: If = Area increase due to frontage (percent)F = Building perimeter which fronts on a public

way or open space having 20 feet open minimum width

P = Perimeter of entire buildingW = Minimum width of public way or open space

15' 20'

P =Perimeter of entire building

30'

155'

130'

150'

F = Building perimeter which fronts on a public way or open space having 20 feet open minimum width 15' 20'

30'

155'

130'

150'

WidthWidth (W) (W) Limits Limits

Width of public way or open space (W) shall be at least 20 feet and

W divided by 30 shall not exceed 1.0 Where I varies along perimeter of

building, calculation of Equation 5-2 based on weighted average of each portion of exterior wall and open space where the value of W is between 20 and 30 feet.

FBC §506.2.1

Width Width (W)(W) Limits Limits

Exception: Quantity W divided by 30 shall not exceed 2.0 when all following conditions exist• Building is permitted to be unlimited in

area by Section 507; and• The only provision preventing unlimited

area is compliance with the 60-foot public way or yard requirement

FBC §506.2.1

Kendall St.

FBC1 Story, Business, TYPE III B

Table 503 allowable 19,000 sq ft

155' × 130' = 20,150 sq ft

If = Area increase due to frontage (percent)

F = Building perimeter which fronts on a public way or accessible open space having 20 feet open minimum width

P = Perimeter of entire buildingW = Minimum width of public

way or accessible open space

If = 100 [ F/P – 0.25 ] W/30

If = 100 [ 440/570 – 0.25 ] W/30If = 100 [ 0.77 – 0.25 ] W/30If = 100 [ 0.52 ] W/30If = [ 52 ] W/30If = [ 52 ] 20/30If = [ 52 ] 0.67If = 34.84 or 35%

19,000 × 0.35 = 6,650 sq ft.

15'

130'

Fire

lane

155'

200'

19,000 + 6,650 = 25,650 sq ft/floor

20'

Fire lane

30'

Open Space LimitsOpen Space Limits

Open space • On same lot oror• Dedicated for public use

Open space shall be accessed from a street or approved fire lane

FBC §506.2.2

Frontage Access Example 1Frontage Access Example 1

In Example 1, the south (street) side can be considered open perimeter (frontage). The north side cannot be considered open perimeter for the purpose of the section because it is not accessible to the street.

Frontage Access Example 2Frontage Access Example 2

In Example 2, all sides of the building are considered open. All sides of the building are accessible by means of a fire department access road or street.

Fire lane

Area Increase for SprinklersArea Increase for SprinklersNFPA13 §903.3.1.1 NFPA13 §903.3.1.1

Allowable area Table 503 increased • 200 percent for multi-story buildings

(IS = 200 percent)

• 300 percent for single-story buildings (IS = 300 percent)

Increases in addition to height and story increases of §504.2

FBC §506.3

Area Increase for SprinklersArea Increase for Sprinklers

Exceptions: 1. Group H-1, H-2 or H-32. Fire-resistance rating substitution in

accordance with Table 601

Fir

e lan

e

FBC2 Story, Business, TYPE III B, Spr

Aa = 19,000 + 6650 + 38,000 = 63,650

Aa = 63,650 sq ft total allowable per floor

Kendall St.

15'

30'

130'

155'

200'

20'

100100Stft

ta

IAIAAA

100

200000,19100

35000,19ta AA

100000,800,3

100000,665

ta AA

Aa = Allowable area per floor (square feet)

At = Tabular area per floor according to Table 503 (square feet)

If = Area increase due to frontage (percent)

Is = Area increase due to sprinkler protection (percent)

Fire lane

Area DeterminationArea Determination

The maximum area of a building shall be determined by multiplying the allowable area per floor (Aa), as determined in Section 506.1 by the number of stories up to a maximum of three stories

FBC §503.3

Area DeterminationArea Determination

Determine max area of multi-story buildings by multiplying the allowable area of the first floor as determined in Section 506.1, by the number of stories as listed below.• For two-story buildings, multiply by 2;• For three-story or higher buildings,

multiply by 3;

FBC §506.4

Area DeterminationArea Determination No story shall exceed the allowable area

per floor as determined in Section 506.1 for the occupancies on the floor

Exceptions:1. Unlimited area buildings in accordance with

Section 5072. Determine max area of a building equipped

with a sprinkler system in accordance with FBC §903.3.1.2 (NFPA 13R) by multiplying the allowable area per floor as determined in Section 506.1 by the number of stories

FBC §506.4

Fire laneAa = 63,650 sq ft

total allowable

Business, TYPE III B, Spr

Example:Example:

Table 503 allowsa 4-story building

Using Section 504.2, we can have a 5-story

63,650 sq ft × 3 =

190,950 sq ft maximum area of building Kendall St.

15'

30'

130'

Fir

e lan

e

155'

200'

20'

Unlimited Area One-StoryUnlimited Area One-Story

Area of a one-story Group A-4, B, F, M, or S building of other than Type V Construction is unlimited when the building is fully sprinklered in accordance with FBC §903.3.1.1 (NFPA 13) and surrounded and adjoined by public ways or yards not less than 60 feet in width

FBC §507.2

Unlimited Area One-StoryUnlimited Area One-Story

Exceptions:1. Buildings and structures of Types I and

II construction for rack storage facilities, which do not have access by the public shall not be limited in height provided that such buildings conform to the requirements of Section 507.1 and NFPA 231C

…continued

FBC §507.2

Unlimited Area One-StoryUnlimited Area One-Story Exceptions…continued

1. Sprinkler system not required in Group A-4 areas occupied for indoor participant sports such as tennis, skating, swimming equestrian activities provided: • 2.1. Exit doors directly to the outside are

provided for occupants of the participant sports areas, and

• 2.2. The building is equipped with a fire alarm system with manual fire alarm boxes installed in accordance with Section 907

FBC §507.2

Unlimited Group AUnlimited Group A

One-story Group A buildings without a stage requiring proscenium opening protection shall not be limited in area provided they are • Type II, III-A or IV construction, and• Surrounded on all sides by a permanent open

space of not less than 60 ft, and• Provided with an automatic sprinkler system, and • The assembly floor is located at, or within 21

inches of street or grade level, and • All exits meet the street or grade level by ramps

having a slope not exceeding a 1:12

FBC §507.9

Unlimited Area Two-storyUnlimited Area Two-story

The area of a two-story, Group B, F, M or S building shall not be limited when the building is provided with an automatic sprinkler system in accordance with Section 903.3.1.1 throughout, and is surrounded and adjoined by public ways or yards not less than 60 feet in width

FBC §507.3

Reduction of 60' Open Reduction of 60' Open SpaceSpace

The permanent open space of 60 feet required in Sections 507.2 shall be permitted to be reduced to not less than 40 feet provided the following requirements are met:

…continued

FBC §507.4

Reduction of 60' Open Reduction of 60' Open SpaceSpace

…continued

1. The reduced open space shall not be allowed for more than 75 percent of the perimeter of the building

2. The exterior wall facing the reduced open space shall have a minimum fire-resistance rating of 3 hours

3. Openings in the exterior wall, facing the reduced open space, shall have opening protectives with a fire-resistance rating of 3 hours

FBC §507.4

Unlimited Area Group EUnlimited Area Group E

The area of a one-story Group E building of Type II, IIIA or IV construction shall not be limited when the following criteria are met:

…continued

FBC §507.8

Unlimited Area Group EUnlimited Area Group E…continued1. Each classroom shall have not less than two

means of egress, with one of the means of egress being a direct exit to the outside of the building complying with Section 1017 or the building is provided with smoke barriers having a minimum 1-hour fire-resistance rating dividing the building into areas not to exceed 30,000 square feet in floor area

2. The building is equipped with a sprinkler system in accordance with Section 903.3.1.1

…continued

FBC §507.8

Unlimited Area Group EUnlimited Area Group E

…continued

3. The building is surrounded and adjoined by public ways or yards not less than 60 feet in width

FBC §507.8

Minimum 60-ft yard

Minimum 60-ft yard

Minimum 60-ft yard

Unlimited area*

Groups A-4, B, F, M, or S occupanciesOne- or two- story building**Fully sprinklered

Minimum 60-ft public way

* Any type of construction permitted** Limited to one story for Group A-4

Special ProvisionsSpecial Provisions

Section provides for the use of special conditions to exempt or modify the requirements related to height and area.

Majority of the provisions relate to attached parking structures

Special provisions allow unlimited height for Groups B, M, and R of Type IB Construction

FBC §508

Chapter 6Chapter 6

Types of ConstructionTypes of Construction

Construction ClassificationConstruction Classification

Code requires all buildings and structures to be classified in one of five construction types.

Building elements shall have a fire resistance rating not less than that specified in FBC Table 601

Exterior walls shall have a fire resistance rating not less than that specified in Table 602

FBC §602.1FBC §602.1


A building or portion thereof shall not be required to conform to the details of a type of construction higher than that type which meets the minimum requirements based on occupancy even though certain features of such building actually conform to a higher type of construction

FBC §602.1.1


Type I and II construction are those types of construction in which the building elements listed in Table 601 are of noncombustible materials.

FBC §602.2


Type III construction is that type in which the exterior walls are of non-combustible materials and the interior building elements are of any material permitted by this code.

FBC §602.3

* See Notes toTables 601 and 602

Exterior bearing walls 2 hours

Exterior bearing walls 2 hours

Floor/ceiling1 hour

Floor/ceilingnonrated

Partition nonrated

Partition nonrated

Structural frame or interior bearing wall1 hour

Structural frame or interior bearing wallnonrated

Type III-A Roof 1 hour

Roof nonrated

Type III-B


Fire-retardant-treated wood framing complying with FBC §2303.2 shall be permitted within exterior wall assemblies of 2 hour fire rating or less in Type III Construction

FBC §602.3


Type IV construction (Heavy Timber, HT) is that type of construction in which the exterior walls are of noncombustible materials and the interior building elements are of solid or laminated wood without concealed spaces.

FBC §602.4

Exterior bearing walls2 hours

Floor/ceilingHeavy timber

Partition nonrated

Structural frameHeavy timber

Type IV Heavy TimberRoof Heavy timber

Interior bearing wall1 hour orHeavy timber

* See notes to Tables 601 and 602

Type IV Construction (HT)Type IV Construction (HT)

The code provides very detailed requirements on the sizes of structural members for Type IV Construction

Fire retardant treated wood framing complying with Section 2303.2 shall be permitted within exterior wall assemblies of 2 hour rating or less.


Type V construction is that type of construction in which the structural elements, exterior walls and interior walls are of any materials permitted by this code.

FBC §602.5

* See Notes toTables 601 and 602

Exterior bearing walls nonrated

Exterior bearing walls 1 hour

Floor/ceiling1 hour

Floor/ceilingnonrated

Partition nonrated

Partition nonrated

Structural frame or interior bearing wall1 hour

Structural frame or interior bearing wallnonrated

Type V-A Roof 1 hour

Roof nonrated

Type V-B

Noncombustible

Exterior and interior (bearing or nonbearing) walls, floors, roofs and structural elements to be of noncombustible materials

I A B

II A B

Combustible

Exterior walls to be of noncombustible materials

III A B

IV HT

V A B

Construction ClassificationConstruction ClassificationComparison of Construction TypesComparison of Construction Types

FBC Type I IBC Type IA

FBC Type II IBC Type IB

FBC Type III IBC Type IV

FBC Type IV (Protected)

IBC Type IIA

FBC Type IV IBC Type IIB

FBC Type V (Protected) IBC Type IIIA

FBC Type V IBC Type IIIB

FBC Type VI (Protected)

IBC Type VA

FBC Type VI IBC Type VB

TABLE 601:TABLE 601:FIRE-RESISTANCE RATING REQUIREMENTSFIRE-RESISTANCE RATING REQUIREMENTS

FOR BUILDING ELEMENTS (hrs)FOR BUILDING ELEMENTS (hrs)

BUILDING ELEMENTBUILDING ELEMENTTYPE ITYPE I TYPE IITYPE II TYPE TYPE

IIIIIITYPE TYPE

IVIVTYPE TYPE

VV

A B A B A B HT A B

Structural frame a

Including columns, girders, trusses 3b, g 2b 1 0 1 0 HT 1 0

Bearing wallsExterior f

Interior

44b

33b

11

00

21

20

22b/ HT

11

00

Nonbearing walls and partitionsExteriorInterior e

See Table 602See Section 602

Floor constructionIncluding supporting beams and joists 3g 2 1d 0d 1d 0d HT 1 0

Roof constructionIncluding supporting beams and joists

1½ c, g 1c 1c 0 1c 0 HT 1c 0

For SI: 1 foot = 304.8 mm. Footnotes found on next slide.

TABLE 601: FootnotesTABLE 601: Footnotesa The structural frame shall be considered to be the columns and the girders, beams, trusses and

spandrels having direct connections to the columns and bracing members designed to carry gravity loads. The members of floor or roof panels which have no connection to the columns shall be considered secondary members and not a part of the structural frame.

b Fire-resistance ratings of the structural frame and bearing walls are permitted to be reduced by 1 hour where supporting one floor or one roof only.

c 1. Except in Factory-Industrial (F-1), Hazardous (H), Institutional (I), Mercantile (M) and Moderate-Hazard Storage (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.

2. In Type I and II construction, fire-retardant-treated wood shall be allowed in buildings including girders and trusses as part of the roof construction when the building is:

Two stories or less in height;Type II construction over two stories; orType I construction over two stories and the vertical distance from the upper floor to the roof

is 20 feet or more.

d Group B and M occupancies of Type II or III construction five or more stories in height shall be required to have a minimum 2-hour fire resistance rating for the floor construction located over the basement.

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

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

g For Group A, B, E, F and R occupancies and parking garages, the required fire-resistance ratings for the structural frame, floor and roof construction, including supporting beams and joists, shall be permitted to be reduced by 1-hour where the building is protected throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1, but the fire resistance rating shall not be less than 1-hour.

h For unsprinklered Group E occupancies of Type, II-B, III-B, IV orV-B construction, the floor construction located immediately above useable space in basements shall have a fire-resistance rating of not less than 1-hour.

a. Load-bearing exterior walls shall also comply with the fire-resistance rating requirements of Table 601.b. Group R-3 and Group U when used as accessory to Group R-3, as applicable in Section 101.2 shall not be required

to have a fire-resistance rating where the fire separation distance is 3 feet or more.c. See Section 503.2 for party walls.

TABLE 602TABLE 602FIRE RESISTANCE RATING REQUIREMENTS FORFIRE RESISTANCE RATING REQUIREMENTS FOREXTERIOR WALLS BASED ON FIRE SEPARATION EXTERIOR WALLS BASED ON FIRE SEPARATION

DISTANCEDISTANCEaa

FIRE SEPARATION FIRE SEPARATION DISTANCE (feet)DISTANCE (feet)

TYPE OF TYPE OF CONSTRUCTIONCONSTRUCTION

GROUPGROUP

HHF-1, M,F-1, M,S-1S-1

A, B, E, F-A, B, E, F-2,2,

I, RI, Rbb, S-2, U, S-2, U

< 5cI-A, I-B, III-A, III-B, IVOthers

33

32

31

> 5< 10

I-A, I-B, III-A, III-B, IV Others

32

21

21

> 10< 20

I-A, I-B, III-A, III-B, IVII-B, V-BOthers

211

201

201

> 20< 30

I-A, I-B, III-A, III-B, IVOthers

11

10

10

> 30 All 0 0 0

Openings in Exterior WallsOpenings in Exterior Walls

The allowable area of openings in exterior walls are found in Chapter 7, Section 704.8 and Table 704.8

Openings in Exterior WallsOpenings in Exterior Walls

The maximum area of unprotected or protected openings permitted in an exterior wall in any story shall not exceed the values set forth in Table 704.8.

FBC §704.8

Combustible Materials in Combustible Materials in Types I and II ConstructionTypes I and II Construction

A detailed listing of the permissible uses of combustible materials in Types I and II Construction is provided.

FBC §603

Chapter 7Chapter 7

Fire-Resistance-Rated Fire-Resistance-RatedConstructionConstruction

Fire AreaFire Area

FIRE AREA. The aggregate floor area enclosed and bounded by fire walls, fire barriers, exterior walls or fire-resistance-rated horizontal assemblies of a building.

May consist of a portion of a floor area within a single story, one entire story or the combined floor area of several stories depending on enclosure and separation.

FBC §702.1

Fire area "B"Fire area "A"

Fire area "1"

Fire area "2"

Fire barrier or fire wall

Fire-resistance-rated horizontal assembly

Fire AreaFire Area

DN

DN

Fire WallFire Wall

A fire-resistance rated wall having protected openings, which restricts the spread of fire and extends continuously from the foundation to or through the roof, with sufficient structural stability under fire conditions to allow collapse of construction on either side without collapse of the wall

FBC §702.1

Fire WallsFire Walls

Each portion of a building separated by fire walls rated in accordance with Table 705.4 is considered a separate building

For the purpose of determining the allowable height and area of Table 503, fire walls dividing buildings into separate buildings are required to provide a four-hour fire resistance rating

FBC §705.1

Fire WallsFire Walls

Where a fire wall also separates Groups that are required to be separated by a fire barrier wall, the most restrictive requirements of each separation shall apply.

Fire walls (party walls) located on property lines shall comply with Section 503.2.

FBC §705.1

Fire Walls - OpeningsFire Walls - Openings

Openings protected in accordance with FBC §715.3

Limited to a max aggregate width at any floor level of 25% of the length of the wall

Max area of any single opening 120 ft2

FBC §705.8

Fire Walls - OpeningsFire Walls - Openings

Exceptions:• Prohibited in party walls in accordance

with §503.2• Openings not limited to 120 ft2 where

adjoining buildings are protected by sprinkler system

FBC §705.8

TABLE 705.4:TABLE 705.4:FIRE WALL FIRE-RESISTANCE FIRE WALL FIRE-RESISTANCE

RATINGSRATINGScc

GROUPGROUP FIRE-RESISTANCEFIRE-RESISTANCERATING (hours)RATING (hours)

A, B, D, E, H-4, I, R-1, R-2, U 3a

F-1, H-3b, H-5, M, S-1 3

H-1, H-2 4b

F-2, S-2, R-3, R-4 2a Walls shall be not less than 2-hour fire-resistance rated where separating

buildings of Type II or V construction.b For Group H-1, H-2 or H-3 buildings, also see Sections 415.4 and 415.5.c For the purposes of determining height and area in accordance with Table 503, fire

walls dividing buildings into separate building shall provide a 4-hour fire resistance rating.

Fire BarrierFire Barrier

FIRE BARRIER. A fire-resistance-rated vertical or horizontal assembly of materials designed to restrict the spread of fire in which openings are protected

FBC §702.1

Fire BarrierFire Barrier

The fire resistance rating of a fire barriers is dependent upon the occupancy class or classes and the type of separation • e.g. mixed occupancies, incidental use

areas, exit enclosures, shaft enclosures, etc.

FBC §706.3

TABLE 706.3.7TABLE 706.3.7FIRE-RESISTANCE RATING REQUIREMENTS FIRE-RESISTANCE RATING REQUIREMENTS

FORFORFIRE BARRIER ASSEMBLIES BETWEEN FIRE FIRE BARRIER ASSEMBLIES BETWEEN FIRE

AREASAREAS

OCCUPANCY GROUPOCCUPANCY GROUP FIRE-RESISTANCE FIRE-RESISTANCE RATING (hours)RATING (hours)

H-1, H-2 4

F-1, H-3, S-1 3

A, B, E, F-2, H-4,H-5, I, M, R, S-2, F-3

2

U 1

Fire Barriers - OpeningsFire Barriers - Openings

Openings protected in accordance with FBC §715

Limited to a max aggregate width of 25% of the length of the wall

Max area of any single opening 120 ft2

FBC §706.7

Fire Barriers - OpeningsFire Barriers - Openings

Exceptions:• Openings not limited to 120 ft2 where

adjoining fire areas are protected by sprinkler system

• Fire doors serving exit enclosures• Openings are unlimited where opening

protective tested in accordance with ATSM E119 and has same rating as wall

FBC §706.7

Exterior Wall OpeningsExterior Wall Openings

FIRE SEPARATION DISTANCE. The distance measured • From the building face to the closest

interior lot line, • To the centerline of a street, alley or public

way, or • To an imaginary line between two

buildings on the lot. The distance shall be measured at right

angles from the face of the wall.

FBC §702.1

TABLE 704.8TABLE 704.8MAXIMUM AREA OF EXTERIOR WALL MAXIMUM AREA OF EXTERIOR WALL

OPENINGSOPENINGSaa

CLA

SS

IFICA

TIO

NC

LAS

SIFIC

ATIO

NO

F OPE

NIN

GO

F OPE

NIN

G

FIRE SEPARATION DISTANCE (feet)FIRE SEPARATION DISTANCE (feet)

0 to 3e,h

Greaterthan

3 to 5b

Greater

than5 to 10d,f

Greaterthan10 to 15c,d,f

Greater

than15 to 20c,f

Greater

than 20 to 25c,f

Greater

than25 to 30c,f

Greater

than30

Un- protecte

d

Not permitte

d g

Not permitted

b,g

10% g 15% g 25% g 45% g 70% g No limit

Protected

Not permitted 15% 25% 45% 75%

Nolimit

Nolimit

No limit

Mixed OpeningsMixed Openings

Where both unprotected and protected openings are located in the exterior wall in any story, the total area of the openings shall comply with Equation 7.2

FBC §704.8

Equation 7-2Equation 7-2

where:

A = Actual area of protected openings, or the equivalent area of protected openings, Ae (see Section 704.7)

a = Allowable area of protected openingsAu = Actual area of unprotected openings

au = Allowable area of unprotected openings

30 ft2 30 ft2 30 ft2 95 ft2 45 ft2 30 ft2

100'

10'

0.1≤+u

u

aA

aA

A = Actual area of protected openings = 165 sq fta = Allowable area of protected openings = 450 sq ftAu = Actual area of unprotected openings = 95 sq ft

au = Allowable area of unprotected openings = 150 sq ft

15095

+450165

633.0+366.0= 0.1≤999.0=

Protected opening total = 165 sq ft = A

Unprotected opening total = 95 sq ft = Au

Wall elevation of building with 12-ft fire separation and 1-hr roofWall elevation of building with 12-ft fire separation and 1-hr roof

Sprinklers and OpeningsSprinklers and Openings

In buildings equipped with a sprinkler system in accordance with Section 903.3.1.1 (NFPA 13), the maximum allowable area of unprotected openings in occupancies other than Groups H-1, H-2, and H-3 shall be the same as for protected openings from Table 704.8

FBC §704.8.1

TABLE 704.8TABLE 704.8MAXIMUM AREA OF EXTERIOR WALL MAXIMUM AREA OF EXTERIOR WALL

OPENINGSOPENINGSaa

CLA

SS

IFICA

TIO

NC

LAS

SIFIC

ATIO

NO

F OPE

NIN

GO

F OPE

NIN

G

FIRE SEPARATION DISTANCE (feet)FIRE SEPARATION DISTANCE (feet)

0 to 3e,h

Greaterthan

3 to 5b

Greater

than5 to 10d,f

Greaterthan10 to 15c,d,f

Greater

than15 to 20c,f

Greater

than 20 to 25c,f

Greater

than25 to 30c,f

Greater

than30

ProtectedNot

permitted

15% 25% 45% 75%No

limitNo

limitNo

limit

~ ~ ~ ~ ~ ~ ~ ~

Allowable area unprotected openings with sprinklers except H-1, H-2 and H-3

Exterior WallsExterior Walls

First story• In occupancies other than Group H,

unlimited unprotected openings are permitted in the first story of exterior walls facing a street that have a fire separation distance of greater than 15 feet, or facing or facing an unoccupied space. The unoccupied space an unoccupied space. The unoccupied space shall be on the same lot or dedicated for shall be on the same lot or dedicated for public use, shall not be less than 30 feet in public use, shall not be less than 30 feet in width, and shall have access from a street width, and shall have access from a street by a posted fire lane in accordance with the by a posted fire lane in accordance with the Florida Fire Prevention Code.Florida Fire Prevention Code.

FBC §704.8.2

Chapter 8Chapter 8

Interior FinishesInterior Finishes


Adopts NFPA 286 as additional testing standard for wall or ceiling finishes, other than textiles

Adds DOC FF-1 Pill Test for interior floor finishes

Adds requirements for curtains, draperies, and other decorative materials suspended from walls or ceilings


Eliminates provisions plastic signs Changes temperature and time

criteria for detachment of finish material• FBC 2001 = 3000º for 25 minutes• FBC 2004 = 2000º not less 30 minutes

Chapter 9Chapter 9

Fire Protection Fire Protection SystemsSystems

Fire Protection SystemsFire Protection Systems

Provides for partial protection by sprinklers where system is not required by code (FBC §901.2)

Stipulates acceptance testing in accordance with Florida Building and Fire Prevention Codes and standards adopted therein. (FBC §901.5)• Provides building official authority to

require testing in his or her presence

Fire Protection SystemsFire Protection Systems Exempts one and two family

dwellings and systems of fewer than 20 heads from supervision requirements (FBC §901.6)

Many occupancy fire protection requirements based on the fire area

Fire resistance rating of fire area separation in accordance with Table 302.3.3 (FBC §901.7)

Fire Protection Systems Fire Protection Systems Group AGroup A

Group A• An automatic sprinkler system shall be

provided throughout buildings and portions thereof used as Group A occupancies as provided in this section.

FBC §903.2.1

Fire Protection Systems Fire Protection Systems Group AGroup A

Groups A-1, A-2, A-3, and A-4 • Automatic sprinkler system shall be provided

throughout the floor area where the Group A occupancy is located, and in all floors between the Group A occupancy and the level of exit discharge.

For Group A-5 • An automatic sprinkler system shall be

provided in concession stands, retail areas, press boxes and other accessory use areas in excess of 1,000 square feet.

FBC §903.2.1

Group ARequired to be sprinklered

Group B

Group B

Group M

All floors to be sprinklered

Discharge level

Fire Protection Systems Fire Protection Systems Group A-1Group A-1

Sprinkler system required throughout a fire areafire area containing a Group A-1 where oneone of the following conditions exists:• Fire area is located on a floor other than

LED • The fire area contains a multi-theatre

complex• The fire area exceeds 12,000 square feet• The fire area has an occupant load of

≥300

FBC §903.2.1.1


Sprinkler system required throughout a fire areafire area containing a Group A-2 occupancy where oneone of the following conditions exists:• The fire area exceeds 5,000 square feet• The fire area is located on a floor other

than the level of exit discharge

FBC §903.2.1.2


Sprinkler system required throughout a fire areafire area containing a Group A-2 occupancy where oneone of the following conditions exists:• The fire area has an occupant load of

300 or more • Exception: Nightclubs or similar usage

when occupant load is 100 or more.

FBC §903.2.1.2

Fire Protection SystemsFire Protection SystemsGroup A-3 and A-4Group A-3 and A-4

Sprinkler system required throughout a fire areafire area containing a Group A-3 and A-4 occupancy where oneone of the following conditions exists:

…continued

FBC §903.2.1.3 and 903.2.1.4

Fire Protection Systems Fire Protection Systems Groups A-3 and A-4Groups A-3 and A-4

…continued

The fire area exceeds 12,000 square feet

The fire area has an occupant load of 300 or more

The fire area is located on a floor other than the level of exit discharge

FBC §903.2.1.3 and 903.2.1.4

Fire Protection Systems Fire Protection Systems Groups A-3 and A-4Groups A-3 and A-4

Exceptions:1. Areas used exclusively as participant

sports areas where the main floor area is located at the same level as the level of exit discharge of the main entrance and exit

2. Assembly occupancies used primarily for worship with fixed seating and not part of a mixed occupancy

FBC §903.2.1.3 and 903.2.1.4


An automatic sprinkler system shall be provided in concession stands, retail areas, press boxes, and other accessory use areas in excess of 1000 sq. ft.

An automatic sprinkler system shall be provided in concession stands, retail areas, press boxes, and other accessory use areas in excess of 1000 sq. ft.

FBC §903.2.1.5

Fire Protection Systems Fire Protection Systems Group EGroup E

An automatic sprinkler system shall be provided throughout all Group E fire areasfire areas greater than 20,000 square feet in area

An automatic sprinkler system shall also be provided for every portion of educational buildings below the level of exit discharge.

FBC §903.2.2

Fire Protection Systems Fire Protection Systems Group EGroup E

Exception: An automatic fire sprinkler system is not required in existing educational buildings unless 50% of the aggregate area of the building is being remodeled.

FBC §903.2.2

Fire Protection Systems Fire Protection Systems Group F-1Group F-1

Sprinklers required throughout all buildings containing Group F-1 where oneone of following conditions exist:• F-1 fire areafire area exceeds 12,000 ft2 • F-1 fire areafire area more than 3 stories above

grade• Combined area of all F-1 fire areasfire areas on all

floors, including mezzanines, exceeds 24,000 ft2

FBC §903.2.3

Fire Protection Systems Fire Protection Systems Group F-1Group F-1

An automatic sprinkler system shall be provided throughout F-1 fire fire areasareas with woodworking areas:• Exceeding 2,500 ft2

• Generates finely divided combustible waste or

• Uses finely divided combustible material

FBC §903.2.3.1

Fire Protection Systems Fire Protection Systems Group HGroup H

An automatic fire-extinguishing system shall be installed in Group H occupancies

FBC §903.2.4.1

Fire Protection Systems Fire Protection Systems Group H-5Group H-5

An automatic sprinkler system shall be installed throughout buildings containing Group H-5 occupancies

The design of the sprinkler system shall not be less than that required by this code for the occupancy hazard classifications in accordance with Table 903.2.4.2

FBC §903.2.4.2

TABLE 903.2.4.2TABLE 903.2.4.2GROUP H-5 SPRINKLER DESIGN GROUP H-5 SPRINKLER DESIGN

CRITERIACRITERIA

LocationLocation Occupancy Hazard Occupancy Hazard ClassificationClassification

Fabrication areasOrdinary Hazard Group 2

Service corridorsOrdinary Hazard Group 2

Storage rooms without dispensing

Ordinary Hazard Group 2

Storage rooms with dispensing

Extra Hazard Group 2

CorridorsOrdinary Hazard Group 2

Fire Protection Systems Fire Protection Systems Group IGroup I

An automatic sprinkler system shall be provided throughout all buildings with a Group I fire area.

FBC §903.2.5

Fire Protection Systems Fire Protection Systems Group IGroup I

Exception: An automatic sprinkler system installed in accordance with 903.3.1.2 or 903.3.1.3 shall be allowed in Group I-1 facilities

FBC §903.2.5

Fire Protection Systems Fire Protection Systems Group MGroup M

Sprinklers shall be provided throughout buildings containing Group M where one of the following exists:• Group M fire areafire area exceeds 12,000 ft2 • Group M fire areafire area is located more than

3 stories above grade• Combined area of all Group M fire areas

on all floors, including mezzanines, exceeds 24,000 ft2

FBC §903.2.6

Fire Protection Systems Fire Protection Systems Group MGroup M

An automatic sprinkler system shall be provided in accordance with the Florida Fire Prevention Code in all buildings of Group M where storage of merchandise is in high-piled or rack storage arrays

FBC §903.2.6.1

Fire Protection Systems Fire Protection Systems Group RGroup R

An automatic sprinkler system shall be provided throughout buildings with a Group R fire area

FBC §903.2.7

Fire Protection Systems Fire Protection Systems Group S-1Group S-1

Sprinklers shall be provided throughout buildings containing Group S-1 where one of the following exists:• Group S-1 fire areafire area exceeds 12,000 ft2 • Group S-1 fire areafire area is located more than

3 stories above grade• Combined area of all Group S-1 fire fire

areasareas on all floors, including mezzanines, exceeds 24,000 ft2

FBC 903.2.8

Fire Protection Systems Fire Protection Systems Repair GaragesRepair Garages

Sprinklers required throughout buildings used as repair garages in accordance with §406.6 as follows:• Buildings two or more stories in height,

including basements, with a fire area containing a repair garage exceeding 10,000 square feet

• One story buildings with a fire area containing a repair garage exceeding 12,000 square feet

• Buildings with a repair garage in the basement

FBC §903.2.8.1

Fire Protection Systems Fire Protection Systems Tire Bulk StorageTire Bulk Storage

Buildings and structures where the area for the storage of tires exceeds 20,000 cubic feet shall be equipped throughout with an automatic fire sprinkler system in accordance with 903.3.1.1

FBC §903.2.8.2

Fire Protection Systems Fire Protection Systems Enclosed Parking GaragesEnclosed Parking Garages

All enclosed parking garages per FBC §406.4 or located beneath another occupancy group shall be protected throughout with an automatic sprinkler system• Exception: Enclosed garages beneath

Group R-3

FBC §903.2.9

Fire Protection Systems Fire Protection Systems Commercial Parking Commercial Parking

GaragesGarages An automatic sprinkler system shall

be provided throughout buildings used for storage of commercial trucks or buses where the fire area exceeds 5,000 square feet (464 m2).

FBC §903.2.9.1

Fire Protection Systems Fire Protection Systems All Occupancies Except R-3 and All Occupancies Except R-3 and

UU Sprinklers shall be provided in all

occupancies in accordance with the following:

Stories and Basements without Openings• Sprinklers shall be provided in every story

or basement of all buildings when the floor area exceeds 1,500 sq. ft. and there is not provided at least one of the following types of exterior wall openings:

…continued

FBC §903.2.10.1


UU…continued

1. Openings below grade that lead directly to ground level by an exterior stairway complying with Section 1009 or an outside ramp complying with Section 1010. Openings shall be located in each 50 linear feet, or

fraction thereof, of exterior wall in the story on at least one side.

2. Openings entirely above the adjoining ground level totaling at least 20 square feet in each 50 linear feet or fraction thereof, of exterior wall in the story on at least one side.

FBC §903.2.10.1


UU Openings shall have a minimum

dimension of not less than 30 inches.

Openings shall be accessible to the fire department from the exterior.

FBC §903.2.10.1.1


UU Openings shall not be obstructed in

a manner that fire-fighting or rescue cannot be accomplished from the exterior.

FBC §903.2.10.1.1


UU Openings on One Side Only

• Where openings in a story are provided on only one side and the opposite wall of such story is more than 75 feet from such openings,

• The story shall be equipped throughout with an approved automatic sprinkler system, or

• Openings as specified above shall be provided on at least two sides of the story.

FBC §903.2.10.1.2

100'


UU Basements

• Where any portion of a basement is located more than 75 feet from openings required by 903.2.10.1, the basement shall be equipped throughout with an approved automatic sprinkler system.

FBC §903.2.10.1.3


UU Rubbish and Linen Chutes

• An automatic sprinkler system shall be installed at the top of rubbish and linen chutes and in their terminal rooms.

FBC §903.2.10.2


UU Rubbish and Linen Chutes

• Chutes extending through three or more floors shall have additional sprinkler heads installed within such chutes at alternate floors.

• Chute sprinklers shall be accessible for servicing.

FBC §903.2.10.2


UU Buildings Over 55 Feet in Height

• An automatic sprinkler system shall be installed throughout buildings with a floor level having an occupant load of 30 or more that is located 55 feet or more above the lowest level of fire department vehicle access.

FBC §903.2.10.3


UU Exceptions:

1. Airport control towers

2. Open parking structures

3. Occupancies in Group F-2

Chapter 10Chapter 10

Means of EgressMeans of Egress


Maintenance• Means of egress shall be maintained in

accordance with the Florida Fire Prevention Code.

FBC §1001.3


Alterations• A building shall not hereafter be altered to

reduce the capacity of the means of egress to less than required by this chapter nor shall any change of occupancy be made in any building unless such building conforms with the requirements of this chapter.

Exception: Existing stairs shall be permitted to remain in use provided they comply with the requirements of the building code in effect at the time of original construction.

FBC §1001.4


Where approved by the Building Official, existing stairs shall be permitted to be rebuilt in accordance with the dimensional criteria of the building code in effect at the time of original construction provided:

…continued

FBC §1001.5


…continued

1. Handrails shall comply with Section 1019.1.1, and

2. Guardrails shall comply with Section 1012, and

3. The elevation of the floor surfaces on both sides of the door shall comply with Section 1008.1.4

FBC §1001.3


Ceiling height of 7'6" carried forward from FBC 2001

Protruding objects required to provide 6'8" (80") clearance

FBC §1003.3.1


No more than 50% of ceiling area in a means of egress may be reduced in height by protruding objects

Door closers and stops permitted to reduce headroom to 78"

Barrier with leading edge a max of 27" above the floor required where vertical clearance less than 80"

FBC §1003.3.1


Walking surfaces are required to be uniformly slip resistant along natural path of travel (FBC §1003.4)

The code will contain a new provision addressing the continuity of the means of egress (FBC §1003.6)


The method for calculating occupant load is expanded to include the greatest of: • Actual number of occupants• Number of occupants calculated using

factors in Table 1004.1.2 (formerly Table 1003.1)

• Combining occupants from an accessory space that egress through a primary area

FBC §1004.1


The corridor fire resistance table has been relocated from Chapter 7 (Table 704.2.4) to Chapter 10 (Table 1016.1)• Required fire resistance ratings for exit

access corridors are carried forward from the FBC 2001


The Egress Width per Occupant Served factors of Table 1004 were replaced with Table 1005.1

Except for Group I-2, the FBC 2001 egress width per occupant served factors have been retained

The factors for Group I-2 will change from 0.2 level and 0.3 stairs to 0.2 level and 0.4 stairs


Provisions for the illumination of means of egress and exit signs carried forward from FBC 2001 §1016 to FBC 2004 §1006


Seven exceptions to the minimum clear width and height of doors are provided

…continued

FBC §1008.1.1


…continued

1. Min and max widths not applied to doors not part of the required MOE in Groups R-2 and R-3

2. Doors to resident sleeping units in Group I-3 may be clear width of not less than 28 inches

3. Door openings to storage closets less than 10 square feet not limited

4. Width of door leafs in revolving doors complying with Section 1008.1.3.1 not limited

…continued

FBC §1008.1.1


…continued

5. Door openings within a dwelling unit or sleeping unit may be 78 inches in height.

6. Exterior door openings in dwelling units and sleeping units, other than the required exit door, shall not be less than 76 inches in height.

7. Interior egress doors within a dwelling unit or sleeping unit which is not required to be adaptable or accessible.

8. Door openings required to be accessible within Type B dwelling units shall have a minimum clear width of 31¾ inches (806 mm).

FBC §1008.1.1


Six exceptions are provided to the requirement for egress doors to be side-hinged swinging doors

…continued

FBC §1008.1.2

Means of EgressMeans of Egress…continued

1. Private garages, office areas, factory and storage areas with an occupant load of 10 or less.

2. Group I-3 occupancies used as a place of detention.

3. Doors within or serving a single dwelling unit in Groups R-2 and R-3 as applicable in Section 101.2.

…continued

FBC §1008.1.2

Means of EgressMeans of Egress…continued

4. In other than Group H occupancies, revolving doors complying with Section 1008.1.3.1.

5. In other than Group H occupancies, horizontal sliding doors complying with Section 1008.1.3.3

6. Power-operated doors in accordance with Section 1008.1.3.1.

FBC §1008.1.2

Means of EgressMeans of Egress Section 1008.1.6 Change to read

as shown: 1008.1.6 Thresholds. Thresholds at doorways shall not

exceed 0.75 inch (19.1 mm) in height for sliding doors serving dwelling units or 0.5 inch (12.7 mm) for other doors. Raised thresholds and floor level changes greater than 0.25 inch (6.4 mm) at doorways shall be beveled with a slope not greater than one unit vertical in two units horizontal (50-percent slope).

FBC §1008.1.6

Means of EgressMeans of Egress Exceptions: 1. The threshold height shall be limited to

7¾ inches (197 mm) where the occupancy is Group R-2 or R-3 as applicable in Section 101.2, the door is an exterior door that is not a component of the required means of egress and the doorway is not on an accessible route. In one-and two-family dwellings where the door discharges to the outside or to an exterior balcony or exterior exit access, the floor level outside the door shall be permitted to be one step lower than the inside, but not more than 8 in. lower.

2. [Remaining text unchanged.]

FBC §1008.1.6


Adds provisions requiring a minimum space between doors in a series of 48 inches minimum plus the width of a door swinging into the space

FBC §1008.1.7

Means of EgressMeans of Egress Section 1009.3, Exception 5, change to read as

shown: In occupancies in Group R-3, as applicable in Section

101.2, within dwelling units in occupancies in Group R-2, as applicable in Section 101.2, and in occupancies in Group U, which are accessory to an occupancy in Group R-3, as applicable in Section 101.2, the maximum riser height shall be 7.75 inches (197 mm) and the minimum tread depth, exclusive of nosing, shall be not less than 10 9 inches (254 mm), the minimum winder tread depth at the walk line shall be 10 inches (254 mm), and the minimum winder tread depth shall be 6 inches (152 mm). (… continued … )

Means of EgressMeans of Egress 5. (… cont. …) A nosing not less than 0.75

inch (19.1 mm) but not more than 1.25 inches (32 mm) shall be provided on stairways with solid risers where the tread dept is less than 11 inches (279 mm). Treads and risers of stairs shall be permitted to be so proportioned that the sum of two risers and a tread, exclusive of projection of nosing, is not less than 24 inches nor more than 25 inches. Every tread less than 10 inches wide shall have a nosing , or effective projection, of approximately 1 inch over the level immediately below that tread.

Means of EgressMeans of Egress 1009.3.1 Dimensional uniformity. Stair treads and risers shall be of uniform size

and shape. The tolerance between the largest and smallest riser or between the largest and smallest tread shall not exceed 0.375 inch (9.5 mm) in any flight of stairs.

Exceptions: 1. Non-uniform riser dimensions of aisle stairs

complying with Section 1024.11.2. 2. Consistently shaped winders, complying

with Section 1009.8, differing from rectangular treads in the same stairway flight.

Means of EgressMeans of Egress Risers shall be a maximum height of 7 inches and a

minimum height of 4 inches (279 mm) (102 mm). Treads shall be a minimum of 11 inches (279 mm).

Exceptions: 1. Within dwelling units, treads and risers of stairs

shall be permitted to be so proportioned that the sum of two risers and a tread, exclusive of projection of nosing, is not less than 24 inches (610 mm) nor more than 25 inches (635 mm). The height of risers shall not exceed 73/4 inches (197 mm), and treads, exclusive of nosing, shall be not less than 9 inches (229 mm) wide. Every tread less than 10 inches (254 mm) wide shall have a nosing, or effective projection, of approximately 1 inch (25.4 mm) over the level immediately below that tread


1009.7 Circular stairways.• Exceptions:• (1) For occupancies in Group R-3, and within

individual dwelling units in occupancies in• Group R-2, both as applicable in Section

101.2.• (2) In Group R3 Occupancies, circular stairs

may have a minimum tread depth of 9 inches (229 mm) with 1 inch (25.4 mm) of nosing, and the smaller radius may be less than twice the width of the stairway.

Means of EgressMeans of Egress Modify Exception 5 to handrail

requirements:• 5. Changes in room elevations of only one

riser within dwelling units and sleeping units in Group R-2 and R-3 occupancies do not require handrails.

• In one- and two-family dwellings and within dwelling units in R2 occupancies, stairways having four or more risers above a floor or finished ground level shall be equipped with handrails located not less than 34 inches (864 mm) nor more than 38inches (965 mm) above the leading edge of a tread.

Means of EgressMeans of Egress Delete Exception 2 to handrail height

provisions:• Exceptions:• 1. Handrails for stairs not required to be

accessible that form part of a guardrail may be 42 inches (1067 mm) high.

• 2. In one- and two-family dwellings and within dwelling units in R2 occupancies, stairways having four or more risers above a floor or finished ground level shall be equipped with handrails located not less than 34 inches (864 mm) nor more than 38 inches (965 mm) above the leading edge of a tread.


Modify Table 1014:

Occupancy Minimum Occupant Load

A,B,D,E,F,M,U, R2, R3 50H-4, H-5, I-1, I-3, R-1, R-4 10


Add Exception 3 to Section 1014.2.1: 3. In R1 and R2 occupancies, the

distance between exits is not applicable to common nonlooped exit access corridors in a building that has corridor doors from the guest room or guest suite or dwelling unit which are arranged so that the exits are located in opposite directions from such doors.


Modify Table 1015.1:

OccupancyW/O Sprinkler

SystemWith Sprinkler

System

R 175 325 250b


1031.3 Add a new section to read as shown:

1031.3 Travel distance in group R1 and R2 occupancies. In group R1 and R2 occupancies travel distance within a guest room, guest suite or dwelling unit to a corridor door shall not exceed 75 feet (23 m) and allowed to be increased to125 feet when the building is protected throughout by an approved, supervised automatic sprinkler system in accordance with s. 903.3.1.1.


Exit access travel distances are carried forward as Florida specific changes

The provisions permitting a single exit have changed considerably

TABLE 1018.2TABLE 1018.2BUILDINGS WITH ONE EXITBUILDINGS WITH ONE EXIT

OCCUPANCYMAX HEIGHT OF BUILDING ABOVE

GRADE PLANE

MAX OCCUPANTS/DWELLING UNITS

PER FLOOR and TRAVEL DISTANCE

A, B d, D, E, F, M, U

1 story50 occupants and75 feet travel distance

H-2, H-3 1 story3 occupants and25 feet travel distance

H-4, H-5, I, R 1 story10 occupants and75 feet travel distance

S a 1 story30 occupants and100 feet travel distance

B d, F, M, S a 2 stories30 occupants and75 feet travel distance

R-2 2 stories c4 dwelling units and50 feet travel distance

Notes on next slides.


Notes for Table 1018.2, Buildings With One Exit:

a. For the required number of exits for open parking structures, see Section 1018.1.1.

b. For the required number of exits for air traffic control towers, see Section 412.1.

…continued


…continued Notes for Table 1018.2, Buildings With

One Exit:c. Buildings classified as Group R-2 equipped

throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 and provided with emergency escape and rescue openings in accordance with Section 1025 shall have a maximum height of three stories above grade.

…continued


…continued

Notes for Table 1018.2, Buildings With One Exit:

d. Buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 with an occupancy in Group B shall have a maximum travel distance of 100 feet.


A number of exceptions to the requirements for enclosed stairways are provided (FBC §1019)

Sections 1024 through 1033 provide special exit provisions by occupancy


The EndThe End

Documents

Building / Fire Overview Florida Building Code 2004 Edition With 2005 Supplements Course No. 0004827 Chapters 1- 10