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Occupancy Definit ions Chapter 3
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Work exempt from permit
One-story detached accessory buildings limited to 120 square
feet in area
Fences limited to 6 feet in height
Oil derricks
Movable cases and partitions limited to 5 feet1 9 inches in
height
Retaining walls limited to 4 feet in height
Water tanks supported directly on grade, limited to 5000
gallons, and ratio of height to diamet - r does not exceed 2 to
1
Platforms, walks and driveways limited to 30 inches above
grade
Painting, papering and sim ilar finish work
Temporary motion picture, television and theater stage sets and
scenery
Window awnings for Group R-3 and U Occupancies when projecting
not more than 54 inches
Prefabricated swimming pools accessory to Group R-3 Occupancies
when capacity is limited to 5000 gallons
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TYPE
CIMSI
Cl s ii
C lass Ill
SUMMARY OF UNIFORM BUILDING CODE STANDPIPE STANDARDS
INTENDED SIZE HOSE AND MINIMUM USE LOCATION WATf:R SUPPLY
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Heavy streams 2-1/2-inch connections. 500 gpm first standpipe
Fire Department
Within each requir - e1 Trained p r onn I 250 gpm each
additional Advanced stages of fire stairw y enclosur at every (2500
gpm maximum) floor above the first story. Each side of horizontal
exit 30-minute duratloh wall, adjacent to exit opening. 100 psi at
top outlet with
500 gpm flow
Small streams 1-112-inch connections. 100 gpm per building,
Building occiJpants 30-minute duration Incipient fire All portion
of ach tory or
ction within so feet of GS psi with i 00 gpm nozzle with 100
feet of flowing from topmost outlet hose.
Both of abov Same as class I with aaded Same as Class I
1-1/2-inoh outlets or 1-1 /2-inch adapters and 1-1/2-inch hose.
Distribution same as class II
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Fire-Resistive Floor/Ceiling Assembly
Floor
\ Protective Ceiling Membrane with Protected Openings per
Section 710.3
1. Individual protection not r quir d for be m which support
only one floor or roof.
2. Individual protection required for beams which support loads
from a floor and roof, or more than one floor.
3. All columns requiring fire protection must be protected for
their full height.
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Table 7-A Item No. 2-1.2
Steel Beams and Girders Anchor mesh to top plate
Concrete made with sandstone, granite or siliceous gravel
Edges of lugs brackets, rivets and bolt heads attach -d to
structural members may extend to within 1 " of the surface of the
fire protection
3-inch or finer mesh at 1 inch from finished m.trface min, .025
sq. in. of steel per foot each direction
Minimum thickness
Minimum Thickness (in inches) 4 Hr. 3 Hr. 2 Hr. 1 Hr. 2-1 /2 2
1-1/2 1
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*36 11 Minimum
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_____ Openings located so that
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4 sphere cannot pass through
Greater than 30" above grade
*Exception for R-3 and U-1 Occupancies and within dwelling units
or guests rooms of R-1 occupancies
4211 Minimum
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ROOF
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30 inches minimum
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FOUNDATION
SEPARATION WALL
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TYPE OF MINIMUM MINIMUM AMOUNT OF OCCUPANCY FIRE-RESISTIVE
OPENING OPENING SEPARATION CONSTRUCTION . PROTECTION .
PROTECTION
FOUR-HOUR FOUR~HOUR . NO OPENINGS NO OPENINGS FIRE-RESISTIVE
PERMllTED PERMITTED
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MAXIMUM
THREE-HOUR 1 25'% OF WALL LENGTH
THREE-HOUR THREE-HOUR AND MAXIMUM FIRE-RESISTIVE 120 SQ.
FT./OPENING1
TWOHOUR 1WO-HOUR ONE AND UNLIMITED FIRE-RESISTIVE
ONE-HALF-HOUR
ONE-HOUR ONE-HOUR ONE-HOUR UNLIMITED FIRE-RESISTIVE
1 Applies only to openings in walls. All openings in floors
shall be protected by vertical enclosures extending above and below
such openings. The walls of such vertical enclosures shall be of
not less than mo-hour fire-resistive construction and all openings
therein shall be protected by a fire assembly having a one and
one-half-hour fire-protection rating. See exception for use of a
three-hour enclosure below the occypancy separation and a one~hour
enclosure above the separation.
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2011 CLEAR
r MINIMUM -~ ,,.".!
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OPE NAB LE / AREA ,, ~ 5,J SO. FT. MfNtMUM .
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MINIMUM SIZE WINDOW FOR
20 11 CLEAR WIDTH
411.1 CLEAR
SILL HEIGHT 44" MAXIMUM
34" CLEAR . I
r' . ,..--;;-i '-.. OPENABLE .... -"'
AREA
5.7 SQ. Fr. /'"' MINIMUM ,
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MINIMUM SIZ~ WINDOW FOR 24" CLEAR HEIGHT
FLOOR
2411 CLeAR MINIMUM
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Sleeping Room @
Smoke detectors In each sleeping room
Bleeping Room
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Living Room
Smoke detector centrally located in corridor
Dining Room
Kitchen
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Fl replace Opening 2 6 Sq . Ft.
Fireplac Opening < 6 Sq. Ft.
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FRO NT VIEW
WOOD STUD
MINIMUM
WOOD FRAMING MEMBERS (OR ANY
COMBUSTIBLE MATERIAL)
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PLAN FIREPLACE, SMOKE CHAMBER VI EW
OR CHIMNEY WALLS
~ 6"min . -=-- Combustible
Trim, etc.
- --- 2" MINIMUM
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10" min.
an min. if firebrick
2011 min., depth
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1/4ii max. joints
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Fa$tener sJacing Nails - 7" max~
) Ceiling Joists, ~- ~-Typical
Fastener Spacing l at Sidewalls: Nails - 8" max. Screws - 12"
max. for
framing 24" o/c - 16" max. for
framing 16" o/c
Gypsum Board Parallel to Studs - --1-H--+---H-
Ceiling:
Gypsum Board Perpendicular to Studs
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FINISHED GRADE
NATURAL GRADE
1111 1111 1111 11111111
FOOTING
---WOOD SUBFLOOR
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WOOD JOLSTS, TYPICAL
WOOD GIRDER
* ACCESSIBLE UNDER FLOOR AREA SHALL BE PROVIDED WITH A
MINIMUM18" X 24" OPENING UNOBSTRUCTED WITH PIPES, DUCTS OR SIMILAR
CONSTRUCTION OPENING SHALL BE SCREENED OR COVERED
UNDER-FLOOR CLEARANCE
* WHERE FLOOR ASSEMBLIES ARE LESS THAN THE MINIMUM DIMENSIONS
NOTED FOR WOOD FLOOR JOISTS AND GIRDERS, THE ENTIRE FLOOR ASSEMBLY
SHALL BE APPROVED WOOD OF NATURAL RESISTANCE TO DECAY AS LISTED IN
SECTION 2306.4, OR TREATED WOOD.
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12" Min.
34" to 38"
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Handrail
1211 Min.
I 3411 to 38 11
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11" min. 9" min. for
private stairways serving
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Handrails (Permitted Projection into Required Width)
4411 Minimum ... Occupant Load of 50 or More
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3611 Minimum _,,. Occupant Load of 49 or Less "
.. Width Determined Par 1003.2
