Bldg/Fire - Florida Building
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Transcript Bldg/Fire - Florida Building
Building / Fire Overview
Florida Building Code
2004 Edition
With 2005 Supplements
Course No. 0004827
Chapters 1- 10
Overview
Chapter
Chapter
Chapter
Chapter
Chapter 5
1
2
3
4
Administration
Definitions
Occupancy Classification
Special Requirements
Based on Occupancy
Heights and Areas
Overview
Chapter 6
Chapter 7
Type Construction
Fire Resistance Rated
Construction
Chapter 8 Interior Finish
Chapter 9 Fire Protection Systems
Chapter 10 Means of Egress
Intent 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 2004
International Building Code, 2003 edition
International Plumbing Code, 2003 edition
International Mechanical Code, 2003 edition
International Fuel Gas Code, 2003 edition
Base Codes for FBC 2004
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
Base Codes for FBC 2004
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 2004
Florida-specific modifications
retained
Chapter 1
Administration
Administrative
Scope. The provisions of the Florida
Building Code shall apply to the
construction, alteration, movement,
enlargement, replacement, repair,
equipment, use and occupancy,
location, maintenance, removal…
…continued
FBC §101.2
Administrative
…continued
…and demolition of every building or
structure or any appurtenances
connected or attached to such
buildings or structures.
FBC §101.2
Administrative
Chapter 1 is limited to the administration
of the code
• Permitting
• Plan review
• Inspection
• Incorporation of former or current statutory
requirements related to construction
Administrative
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
Administrative
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.
Administrative
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
Administrative
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
Applicability
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
Applicability
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
Permits
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
Permits
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
Permits
Minor Repairs. Ordinary minor repairs may
be made without permit with approval 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
Permits
Minor repairs must meet technical codes and
may not include addition to, or alteration of:
• 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
FBC §105.2.2
Permits
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
Permits
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
Permits
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
Permits
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
Permits
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 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
Construction Drawings
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
Construction Drawings
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
Construction Drawings
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
Construction Drawings
Section of FBC 2001 requiring
detailing of how structural and fire
resistance integrity to be maintained
at penetrations eliminated
FBC §104.2.3
Inspections
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 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 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 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 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 2
Definitions
Definitions
General definitions found in Chapter
2
In addition, other definitions found in
various chapters of code
Definitions
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 3
Occupancy
Classification
Classification 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 Areas
Spaces incidental to main occupancy
• Separated or protected or both as
required by Table 302.1.1, or 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 AREAS
ROOM OR AREA
SEPARATIONa
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 fireextinguishing 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 fireextinguishing system
Laboratories and vocational shops, not classified as
Group H, located in Group E or I-2 occupancies
1 hour or provide automatic fire-extinguishing system
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.
Incidental Use Areas
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 AREAS
ROOM OR AREA
SEPARATIONa
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 fireextinguishing 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 fireextinguishing system
Laboratories and vocational shops, not classified as
Group H, located in Group E or I-2 occupancies
1 hour or provide automatic fire-extinguishing system
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.
Incidental Use Areas
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 automaticclosing 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
Fireresistancerated
floor/ceiling or
roof/ceiling
assembly
Walls to be
constructed
to resist
passage of
smoke
Floor
Note: Doors shall • be self-closing or automatic closing
upon detection of smoke
• have no air transfer openings
• have no excessive undercuts
Accessory 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 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 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
Accessory use
≤10,000 sq ft
(Non-Group H or
Incidental use)
Incinerator
room or
other
incidental
use area
No fire barrier required
Group F-1
Fire barrier required
as per Table 302.1.1
Separation and/or
protection required
Group H of any
permitted size
Building of 100,000 sq ft
Mixed 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, Nonseparated Uses, or 302.3.2,
Separated Uses, or a combination of
these sections
Exceptions:
FBC §302.3
Mixed 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
Mixed Occupancy Class
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
Mixed Occupancy Class
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
Mixed Occupancy Class
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
Mixed Occupancy Class
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 nonseparated uses
• Fire separations are not required between uses,
except as required by other provisions
FBC §302.3.1
No fire separation
required
Occupancy 1
Occupancy 2
•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
Mixed Occupancy Class
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
Mixed Occupancy Class
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
Mixed Occupancy Class
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 H-3
hazardous
material
storage
Group S-1
storage
Group F-1
manufacturing
Group B
offices
Occupancy 1
Fire-resistance-rated
horizontal assembly*
Occupancy 2
Occupancy 3
Fire-resistance-rated
fire barrier*
* Minimum fire-resistance rating based on Section 302.3.3 and Table 302.3.3
Mixed Occupancy Class
Options 1 or 2, or any combination
thereof, may be used in a building
FBC §302.3.2
Group 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 - 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-1
Group A-4
•Motion picture theatres
•Theaters
•Arenas
•Skating rinks
•Swimming pools
Group A-2
•Banquet halls
•Night clubs
•Restaurants
•Taverns
Group A-5
•Bleachers
•Grandstands
•Stadiums
Group A-3
•Art galleries
•Churches
•Community halls
•Conference rooms
•Exhibition halls
•Gymnasiums
• Lecture halls
• Libraries
• Museums
• Passenger stations
Group 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 - 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 - 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 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-1
•Group I-3
•Residential board & care facilities
•Assisted living facilities
•Half-way houses
•Group homes
•Congregate care facilities
•Social rehabilitation facilities
•Alcohol and drug centers
•Convalescent facilities
•Prisons
•Jails
•Reformatories
•Detention centers
•Correction centers
•Prerelease centers
Group I-2
•Hospitals
•Nursing homes
•Mental hospitals
•Detoxification facilities
•Infant care (24-hr basis)
IBC Group I-4
• Adult custodial
care facilities
• Child custodial
care facilities
Group I-4 in IBC
eliminated in favor of FBC
§313 Group D–Day Care
Group R - Residential
Limits Group R-4 Assisted Care
Facilities to 16 occupants, excluding
staff
FBC §310
Group U – Utility
and 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 4
Special Detailed
Requirements Based
on Use and
Occupancy
Special Design Criteria
Code carries forward special design
criteria from rules previously
promulgated by state agencies that
addressed construction
Special 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 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 for
Lease to Government
Entities - Prohibition
433: Adult Day Care
434: Assisted Living
Facilities
435: Control of
Radiation Hazards
Covered 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
Covered Malls
Requires submittal of lease plan to
building and fire departments after
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
Covered Malls
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
Covered Malls
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
Covered Malls
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
Covered Malls
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
Covered Malls
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
Covered Malls
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 omission
of sprinklers permitted
FBC §402.4.6
High 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 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 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 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 Facilities
2005 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]
Public Educational Facilities
2005 Supplement
Section 423.14.1 Change to read as
shown:
423.14.1 Master control switch. In
addition to the regular main supply cutoff, 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)]
Public Educational Facilities
2005 Supplement
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 Pools
2005 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 5
General Building
Heights and Areas
Table 503
Allowable heights and areas based on
type construction and building use
Table provides base height and areas
Chapter provides increases thereof
TABLE 601:
FIRE-RESISTANCE RATING REQUIREMENTS
FOR BUILDING ELEMENTS (hrs)
BUILDING ELEMENT
Structural frame a
Including columns, girders, trusses
Bearing walls
Exterior f
Interior
TYPE
IV
TYPE I
TYPE II
TYPE III
A
B
A
B
A
B
HT
A
B
3b, g
2b
1
0
1
0
HT
1
0
4
4b
3
3b
1
1
0
0
2
1
2
0
2
2b/ HT
1
1
0
0
Nonbearing walls and partitions
Exterior
Interior e
TYPE V
See Table 602
See Section 602
Floor construction
Including supporting beams and joists
3g
2
1d
0d
1d
0d
HT
1
0
1c
1c
0
1c
0
HT
1c
0
Roof construction
Including supporting beams and joists
For SI: 1 foot = 304.8 mm.
1½
c, g
Footnotes found on next slide.
TABLE 601: Footnotes
a 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 ModerateHazard 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; or
Type 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 1hour.
Type of Construction
Type I
Group
F-1
F-2
Type III
Type IV
Type V
A
B
A
B
A
B
HT
A
B
UL
160
65
55
65
55
65
50
40
S
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
S
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
S
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
Hgt
(ft)
Hgt
(S)
B
Type II
Type of Construction
Group
A-1
A-2
A-3
A-4
A-5
Type I
Type II
Type III
Type V
A
B
A
B
A
B
HT
A
B
Hgt
(ft)
Hgt
(S)
UL
16
0
65
55
65
55
65
50
40
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
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
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
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
S
UL
UL
UL
UL
UL
UL
UL
UL
UL
A
UL
UL
UL
UL
UL
UL
UL
UL
UL
Type IV
Type of Construction
Group
R-1
R-2a
R-3a
R-4
Type I
Hgt
(ft)
Hgt
(S)
Type II
Type III
Type IV
Type V
A
B
A
B
A
B
HT
A
B
UL
160
65
55
65
55
65
50
40
S
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
S
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
S
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
S
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 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 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 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 Lot
Buildings on same lot are regulated as
separate buildings, or
Two 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 503
R-2, TYPE V-A: Allows 12,000 sq ft per floor
3,000 sq ft
2'
3,000 sq ft
7'
3,000 sq ft
3,000 sq ft
Party 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
Modifications for Sprinklers
Increases of Table 503 limits permitted
for:
Sprinklered buildings
• Increases permitted for NFPA 13 systems
Frontage clearance
Height Modifications
Height 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
Height Modifications
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
Height Modifications
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
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 story
Area increase
for sprinklers
also permitted
Height of building
70' maximum
(50' + 20' regardless
of number of stories)
Grade plane
Increase does not apply when sprinkler installed under the following
conditions:
1. Group I-2 of Type IIB, III, IV or V construction
2. Group H-1, H-2, H-3 or H-5
Height Modifications
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
Height Modifications
Exceptions:
1. Group I-2 of Type IIB, III, IV or V
construction
2. Group H-1, H-2, H-3 or H-5
3. Fire-resistance rating substitution in
accordance with Table 601
FBC §504.2
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 story
Area increase
for sprinklers
also permitted
Height of building
70' maximum
(50' + 20' regardless
of number of stories)
Grade plane
Increase does not apply when sprinkler installed under the following
conditions:
1. Group I-2 of Type IIB, III, IV or V construction
2. Group H-1, H-2, H-3 or H-5
Mezzanines
Mezzanine Area Limitations
2005 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 Modifications
Area Modifications
Table 503 limits increased for frontage (If )
on public way or open space
Installation of sprinklers (Is )
Increases are additive
(Equation 5-1)
FBC §506.1
Area Modifications
Equation 5-1
At I f At I S
Aa At
100 100
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)
FBC §506.1
Area 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
Equation 5-2
F
W
I f 100 0.25
P
30
FBC §506.2
Area Increase for Frontage
F
W
I f 100 0.25
P
30
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 building
W = Minimum width of public way or open space
150'
P = Perimeter of
entire building
15'
20'
130'
155'
30'
F = Building
perimeter which
fronts on a
public way or
open space
having 20 feet
open minimum
width
150'
15'
20'
130'
155'
30'
Width (W) 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 (W) 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
FBC
1 Story, Business, TYPE III B
155' × 130' = 20,150 sq ft
Table 503 allowable 19,000 sq
I ft= 100 [ F/P – 0.25 ] W/30
200'
f
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 building
15'
W = Minimum width of public way or
accessible open space
=
=
=
=
=
=
=
100 [ 440/570 – 0.25 ] W/30
100 [ 0.77 – 0.25 ] W/30
100 [ 0.52 ] W/30
[ 52 ] W/30
[ 52 ] 20/30
[ 52 ] 0.67
34.84 or 35%
19,000 × 0.35 = 6,650 sq ft.
20'
130'
155'
Kendall St.
30'
Fire lane
If
If
If
If
If
If
If
Fire lane
19,000 + 6,650 = 25,650 sq ft/floor
Open Space Limits
Open space
• On same lot or
• Dedicated for public use
Open space shall be accessed from a
street or approved fire lane
FBC §506.2.2
Frontage 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 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 Sprinklers
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 Sprinklers
Exceptions:
1. Group H-1, H-2 or H-3
2. Fire-resistance rating substitution in
accordance with Table 601
FBC
2 Story, Business, TYPE III B, Spr
At I f At I S
Aa At
100
100
200'
Aa = Allowable area per floor
Fire lane
20'
15'
130'
19,000 35 19,000 200
100
100
155'
665,000 3,800,000
100
30'
Aa At
Aa At
100
Aa = 19,000 + 6650 + 38,000 = 63,650
Kendall St.
Aa = 63,650 sq ft total allowable per floor
Fire lane
(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 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 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 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 507
2. 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
Example:
Business, TYPE III B, Spr
200'
Aa = 63,650 sq ft total
allowable
Using Section 504.2,
we can have a 5-story
20'
15'
130'
155'
30'
Kendall St.
63,650 sq ft × 3 =
190,950 sq ft maximum area of building
Fire lane
Table 503 allows
a 4-story building
Fire lane
Unlimited 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-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-Story
1.
Exceptions…continued
Sprinkler system not required in Group A4 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 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-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 Space
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 Space
…continued
1.
2.
3.
The reduced open space shall not be
allowed for more than 75 percent of the
perimeter of the building
The exterior wall facing the reduced open
space shall have a minimum fireresistance rating of 3 hours
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 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 E
…continued
1.
2.
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
The building is equipped with a sprinkler
system in accordance with Section 903.3.1.1
…continued
FBC §507.8
Unlimited 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
Unlimited area*
Minimum 60-ft yard
Minimum
60-ft yard
Groups A-4, B, F, M, or S
occupancies
One- or two- story building**
Fully sprinklered
Minimum 60-ft public way
* Any type of construction permitted
** Limited to one story for Group A-4
Minimum
60-ft yard
Special 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 6
Types of Construction
Construction 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 §602.1
Construction Classification
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
Construction Classification
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
Construction Classification
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
Type III-A
Exterior bearing walls
2 hours
Floor/ceiling
1 hour
Roof
1 hour
Partition
nonrated
Structural frame or
interior bearing wall
1 hour
Type III-B
Exterior bearing walls
2 hours
* See Notes to
Tables 601 and 602
Floor/ceiling
nonrated
Roof
nonrated
Partition
nonrated
Structural frame or
interior bearing wall
nonrated
Construction Classification
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
Construction Classification
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
Type IV Heavy Timber
Exterior
bearing
walls
2 hours
Floor/ceiling
Heavy timber
Interior
bearing wall
1 hour or
Heavy timber
Partition
nonrated
Structural frame
Heavy timber
* See notes to Tables 601 and 602
Roof
Heavy timber
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.
Construction Classification
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
Type V-A
Exterior bearing walls
1 hour
Floor/ceiling
1 hour
Roof
1 hour
Partition
nonrated
Structural frame or
interior bearing wall
1 hour
Type V-B
Exterior bearing walls
nonrated
* See Notes to
Tables 601 and 602
Floor/ceiling
nonrated
Roof
nonrated
Partition
nonrated
Structural frame or
interior bearing wall
nonrated
Exterior and interior
(bearing or nonbearing)
walls, floors, roofs and
Noncombustible
structural elements to be
of noncombustible
materials
Exterior walls to be of
noncombustible materials
Combustible
I
A
B
II
A
B
III
A
B
IV
HT
V
A
B
Construction Classification
Comparison 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:
FIRE-RESISTANCE RATING REQUIREMENTS
FOR BUILDING ELEMENTS (hrs)
BUILDING ELEMENT
Structural frame a
Including columns, girders, trusses
Bearing walls
Exterior f
Interior
TYPE
IV
TYPE I
TYPE II
TYPE III
A
B
A
B
A
B
HT
A
B
3b, g
2b
1
0
1
0
HT
1
0
4
4b
3
3b
1
1
0
0
2
1
2
0
2
2b/ HT
1
1
0
0
Nonbearing walls and partitions
Exterior
Interior e
TYPE V
See Table 602
See Section 602
Floor construction
Including supporting beams and joists
Roof construction
Including supporting beams and joists
For SI: 1 foot = 304.8 mm.
3g
2
1d
0d
1d
0d
HT
1
0
1½
1c
1c
0
1c
0
HT
1c
0
c, g
Footnotes found on next slide.
TABLE 601: Footnotes
a 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 ModerateHazard 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; or
Type 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 1hour.
TABLE 602
FIRE RESISTANCE RATING REQUIREMENTS FOR
EXTERIOR WALLS BASED ON FIRE SEPARATION DISTANCEa
GROUP
FIRE SEPARATION
DISTANCE (feet)
TYPE OF
CONSTRUCTION
H
F-1, M,
S-1
A, B, E, F-2,
I, Rb, S-2, U
< 5c
I-A, I-B, III-A, III-B, IV
Others
3
3
3
2
3
1
>5
< 10
I-A, I-B, III-A, III-B, IV
Others
3
2
2
1
2
1
> 10
< 20
I-A, I-B, III-A, III-B, IV
II-B, V-B
Others
2
1
1
2
0
1
2
0
1
> 20
< 30
I-A, I-B, III-A, III-B, IV
Others
1
1
1
0
1
0
> 30
All
0
0
0
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.
Openings 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 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
Types 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 7
Fire-Resistance-Rated
Construction
Fire Area
FIRE AREA. The aggregate floor area
enclosed and bounded by fire walls, fire
barriers, exterior walls or fire-resistancerated 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 "A"
Fire area "B"
Fire barrier
or fire wall
Fire-resistancerated horizontal
assembly
Fire area "1"
Fire area "2"
Fire Area
DN
DN
Fire 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 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 fourhour fire resistance rating
FBC §705.1
Fire 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 - 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 - 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:
FIRE WALL FIRE-RESISTANCE RATINGSc
a
b
c
GROUP
FIRE-RESISTANCE
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
2
Walls shall be not less than 2-hour fire-resistance rated where separating buildings
of Type II or V construction.
For Group H-1, H-2 or H-3 buildings, also see Sections 415.4 and 415.5.
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 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 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 706.3.7
FIRE-RESISTANCE RATING REQUIREMENTS FOR
FIRE BARRIER ASSEMBLIES BETWEEN FIRE AREAS
OCCUPANCY GROUP
FIRE-RESISTANCE
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 - 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 - 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 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 704.8
MAXIMUM AREA OF EXTERIOR WALL OPENINGSa
CLASSIFICATION
OF OPENING
FIRE SEPARATION DISTANCE (feet)
0 to 3e,h
Greater
than
3 to 5b
Not
Not
Unpermitted
protected permitted
g
b,g
Protected
Not
permitted
15%
Greate
r
than
5 to
10d,f
10%
g
25%
Greater
than
10 to
15c,d,f
15%
g
45%
Greater
than
15 to
20c,f
25%
g
75%
Greater
than
20 to
25c,f
45%
g
No
limit
Greater
than
25 to
30c,f
70%
g
No
limit
Greater
than
30
No
limit
No
limit
Mixed 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 7-2
where:
A = Actual area of protected openings, or the
equivalent area of protected openings, Ae (see
Section 704.7)
a = Allowable area of protected openings
Au = Actual area of unprotected openings
au = Allowable area of unprotected openings
Wall elevation of building with 12-ft fire separation and 1-hr roof
100'
10'
30 ft2
30 ft2
A Au
+
≤ 1.0
a au
A =
a =
Au =
au =
30 ft2
95 ft2
45 ft2
30 ft2
Protected opening total = 165 sq ft = A
Unprotected opening total = 95 sq ft = Au
Actual area of protected openings
Allowable area of protected openings
Actual area of unprotected openings
Allowable area of unprotected openings
=
=
=
=
165 sq ft
450 sq ft
95 sq ft
150 sq ft
165 95
+
= 0.366 + 0.633 = 0.999 ≤ 1.0
450 150
Sprinklers 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 704.8
MAXIMUM AREA OF EXTERIOR WALL OPENINGSa
CLASSIFICATION
OF OPENING
FIRE SEPARATION DISTANCE (feet)
Greater
than
3 to 5b
0 to 3e,h
~
Protected
~
Not
permitted
Greate
r
than
5 to
10d,f
~
15%
Greater
than
10 to
15c,d,f
~
25%
Greater
than
15 to
20c,f
~
45%
Greater
than
20 to
25c,f
~
75%
Greater
than
25 to
30c,f
~
No
limit
Greater
than
30
~
No
limit
Allowable area unprotected openings with
sprinklers except H-1, H-2 and H-3
No
limit
Exterior 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
an unoccupied space. The unoccupied space
shall be on the same lot or dedicated for
public use, shall not be less than 30 feet in
width, and shall have access from a street
by a posted fire lane in accordance with the
Florida Fire Prevention Code.
FBC §704.8.2
Chapter 8
Interior Finishes
Interior 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
Interior Finishes
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 9
Fire Protection
Systems
Fire 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 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
Group 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
Group 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 A
Required to be sprinklered
All floors
to be
sprinklered
Group B
Group B
Group M
Discharge
level
Fire Protection Systems
Group A-1
Sprinkler system required throughout a
fire area containing a Group A-1 where
one 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
Fire Protection Systems
Group A-2
Sprinkler system required throughout
a fire area containing a Group A-2
occupancy where one 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
Fire Protection Systems
Group A-2
Sprinkler system required throughout
a fire area containing a Group A-2
occupancy where one 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 Systems
Group A-3 and A-4
Sprinkler system required throughout
a fire area containing a Group A-3
and A-4 occupancy where one of the
following conditions exists:
…continued
FBC §903.2.1.3 and 903.2.1.4
Fire Protection Systems
Groups 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
Groups 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
Fire Protection Systems
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
1000 sq. ft.
FBC §903.2.1.5
Fire Protection Systems
Group E
An automatic sprinkler system shall
be provided throughout all Group E
fire 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
Group 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
Group F-1
Sprinklers required throughout all
buildings containing Group F-1
where one of following conditions
exist:
• F-1 fire area exceeds 12,000 ft2
• F-1 fire area more than 3 stories above
grade
• Combined area of all F-1 fire areas on all
floors, including mezzanines, exceeds
24,000 ft2
FBC §903.2.3
Fire Protection Systems
Group F-1
An automatic sprinkler system shall
be provided throughout F-1 fire areas
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
Group H
An automatic fireextinguishing
system shall be
installed in Group H
occupancies
FBC §903.2.4.1
Fire Protection Systems
Group 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 903.2.4.2
GROUP H-5 SPRINKLER DESIGN CRITERIA
Location
Occupancy Hazard
Classification
Fabrication areas
Ordinary Hazard Group 2
Service corridors
Ordinary Hazard Group 2
Storage rooms without
dispensing
Ordinary Hazard Group 2
Storage rooms with
dispensing
Extra Hazard Group 2
Corridors
Ordinary Hazard Group 2
Fire Protection Systems
Group I
An automatic sprinkler system shall
be provided throughout all buildings
with a Group I fire area.
FBC §903.2.5
Fire Protection Systems
Group 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
Group M
Sprinklers shall be provided
throughout buildings containing
Group M where one of the following
exists:
• Group M fire area exceeds 12,000 ft2
• Group M fire 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
Group 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
Group R
An automatic sprinkler system shall
be provided throughout buildings
with a Group R fire area
FBC §903.2.7
Fire Protection Systems
Group S-1
Sprinklers shall be provided
throughout buildings containing
Group S-1 where one of the following
exists:
• Group S-1 fire area exceeds 12,000 ft2
• Group S-1 fire area is located more than
3 stories above grade
• Combined area of all Group S-1 fire areas
on all floors, including mezzanines,
exceeds 24,000 ft2
FBC 903.2.8
Fire Protection Systems
Repair 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
Tire 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
Enclosed 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
Commercial Parking Garages
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
All Occupancies Except R-3 and U
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
Fire Protection Systems
All Occupancies Except R-3 and U
…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
Fire Protection Systems
All Occupancies Except R-3 and U
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
Fire Protection Systems
All Occupancies Except R-3 and U
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
Fire Protection Systems
All Occupancies Except R-3 and U
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'
Fire Protection Systems
All Occupancies Except R-3 and U
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
Fire Protection Systems
All Occupancies Except R-3 and U
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
Fire Protection Systems
All Occupancies Except R-3 and U
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
Fire Protection Systems
All Occupancies Except R-3 and U
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
Fire Protection Systems
All Occupancies Except R-3 and U
Exceptions:
1. Airport control towers
2. Open parking structures
3. Occupancies in Group F-2
Chapter 10
Means of Egress
Means of Egress
Maintenance
• Means of egress shall be maintained in
accordance with the Florida Fire
Prevention Code.
FBC §1001.3
Means of Egress
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
Means of Egress
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
Means of Egress
…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
Means of Egress
Ceiling height of 7'6" carried forward
from FBC 2001
Protruding objects required to
provide 6'8" (80") clearance
FBC §1003.3.1
Means of Egress
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
Means of Egress
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)
Means of Egress
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
Means of Egress
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
Means of Egress
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
Means of Egress
Provisions for the illumination of
means of egress and exit signs
carried forward from FBC 2001 §1016
to FBC 2004 §1006
Means of Egress
Seven exceptions to the minimum
clear width and height of doors are
provided
…continued
FBC §1008.1.1
Means of Egress
…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
Means of Egress
…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
Means of Egress
Six exceptions are provided to the
requirement for egress doors to be
side-hinged swinging doors
…continued
FBC §1008.1.2
Means 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 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 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 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
Means of Egress
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 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 R2, 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 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 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 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
Means of Egress
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 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 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.
Means of Egress
Modify Table 1014:
Occupancy
A,B,D,E,F,M,U, R2, R3
H-4, H-5, I-1, I-3, R-1, R-4
Minimum Occupant Load
50
10
Means of Egress
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.
Means of Egress
Modify Table 1015.1:
Occupancy
W/O Sprinkler
System
With Sprinkler
System
R
175
325 250b
Means of Egress
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.
Means of Egress
Exit access travel distances are
carried forward as Florida specific
changes
The provisions permitting a single
exit have changed considerably
TABLE 1018.2
BUILDINGS WITH ONE EXIT
OCCUPANCY
MAX HEIGHT OF BUILDING
ABOVE GRADE PLANE
MAX OCCUPANTS/DWELLING UNITS
PER FLOOR and TRAVEL DISTANCE
A, B d, D, E, F, M, U 1 story
50 occupants and
75 feet travel distance
H-2, H-3
1 story
3 occupants and
25 feet travel distance
H-4, H-5, I, R
1 story
10 occupants and
75 feet travel distance
1 story
30 occupants and
100 feet travel distance
2 stories
30 occupants and
75 feet travel distance
S
a
B d, F, M, S
a
R-2
Notes on next slides.
2 stories
c
4 dwelling units and
50 feet travel distance
Means of Egress
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
Means of Egress
…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
Means of Egress
…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.
Means of Egress
A number of exceptions to the
requirements for enclosed stairways
are provided (FBC §1019)
Sections 1024 through 1033 provide
special exit provisions by occupancy
Means of Egress
The End