HomeMy WebLinkAboutFIRE FLOW REPORT 0-3 -oc G�4-
a4 -
P Pledger Kalkomey, Inc. Bryan Texas 7808
979- 731 -8000, 979 - 731 -1500 (Fax)
K Consulting Engineers www.pkengineering.com
March 8, 2004
Ms. Carol Cotter
City of College Station
P.O. Box 9960
College Station, Texas 77842
Re: Patel Comfort Inn
PK Job No. 47504 -251
Dear Mrs. Cotter,
Enclosed please find the following Fire Flow Requirement and
Calculation for flow hydrant number E -087.
Very Truly Yours,
„10S0eL--
Steve E. Duncan, P.E.
sed @pkengineeing.com 0* %.*ri
of SIEVE E. DUNCAN
SED /bap .
83252 �
Enclosures cl; . CENS
4 , bN A ` ,
S:\2004 \47504 -251 PATEL - Comfort Inn \CS -05 -fire flow calculation.doc
Brenham • Bryan • Rosenberg
COMFORT INN
CITY OF COLLEGE STATION
PK JOB #47504 -251
FIRE FLOW CALCULATION
CALCULATED FLOW
Fire Flow required at 20 psi:
Q,. = 29.83c
Q = (29.83)(0.9)(2.5) 80 = 1,500.8 gpm
7 P S —20 \0
Q f - Qr\P S -Pr
(95 -21
.
Q = 1,500.8 = 4,455 gpm
95 —85
Where:
Q = residual flow at the pitot pressure (gpm)
Q = Fire Flow (gpm)
c = friction loss (usually 0.9 for smooth 2.5 -in opening)
D = diameter of opening in inches (2.5 in most cases)
P, = pitot pressure (psig)
P = residual pressure (psig)
P = static pressure (psig)
REQUIRED FLOW
Building Type = VA (Section 602.5 and 1505 of 2000 International Building Code)
Fire Area = 32,285 square feet (Section B104.1 of 2000 International Fire Code)
Required Fire Flow = 3,250 gpm (Table B105.1 of 2000 International Fire Code)
RESULTS
4,455 gpm > 3,200 gpm = OK
1601 GRAHAM ROAD
COLLEGE STATION TEXAS 77845
Date: 4 MARCH 2004
Attention: CAROL COTTER
From: Butch Willis Water Wastewater Division
Phone: 979 - 764 -3435 Fax: 979 - 764 -3452
FLOW TEST REPORT
Location: 2307 TEXAS AVE
Flow hydrant number: E -087
Pitot reading: 80
(GPM): 1140
Static hydrant number: E -007
Static PSI: 95
Residual PSI: 85
THIS TEST WAS RUN ON 16 DEC 03
�
CHAPTER 6
TYPES OF CONSTRUCTION
SECTION 601 602.4.2 Floor framing. Wood beams and girders shall be of
GENERAL sawn or glued laminated timber and shall be not Tess than 6
inches (152 mm) nominal in width and not less than I()
601.1 Scope. The provisions of this chapter shall control the inches (254 mm) nominal in depth. Framed sawn or glued
classification of buildings as to type of construction. laminated timber arches, which spring from the floor line
and support floor loads, shall be not Tess than 8 inches (203
SECTION 602 mm) nominal in any dimension. Framed timber trusses sup -
CONSTRUCTION CLASSIFICATION porting floor loads shall have members of not less than 8
602.1 General. Buildings and structures erected or to he inches (203 mm) nominal in any dimension.
erected, altered or extended in heir *ht or area shall be classi-
fied in one of the five construction types defused in Sections 602.43 Roof framing. Wood - framed or glued laminated -
602.2 through 602.5. The buildin�e elements shall have a fire
arches for roof construction. which spring from the floor
resistance rating not less than that specified in Table 601 and line or from grade and do not support floor loads shall
exterior walls shall have a fire resistance rating not less than have members not less than 6 inches (152 mm) nominal in
that specified in Tahle 602.
width and have less than 8 inches (203 mm) nominal in
depth for the lower halt of the height and not less than 6
602.1.1 Minimum requirements. A building or portion inches (152 mm) nominal in depth for the upper half.
thereof shall not he required to conform to the details of a Framed or glued laminated arches for roof construction
type of construction higher than that type. which meets the that spring from the top of walls or wall abutments,
minimum requirements based on occupancy even though framed timber trusses, and other roof framing, which do
certain features of such a building actually conform to a not support floor Toads, shall have members not less than
higher type of construction. 4 inches (102 mm) nominal in width and not less than 6
inches (152 mm) nominal in depth. Spaced members may
602.2 Types I and II. Types 1 and 11 construction are those he composed of two or more pieces not less than 3 inches
types of construction in which the building elements listed in (76 mm) nominal in thickness where blocked solidly
Tahle 601 are of noncombustihle materials. throughout their intervening spaces or where spaces are
tightly closed by a continuous wood cover plate of not less
6023 Type III. Type III construction is that hype of con than 2 inches (51 mm) nominal in thickness secured to the
struction in which the exterior walls are of noncombustible underside of the members. Splice plates shall be not less
materials and the interior building elements are of any mate than 3 inches (76 mm) nominal in thickness. Where pro-
rial permitted by this code. Fire - retardant- treated wood tram tested by approved automatic sprinklers under the roof
ing complying with Section 2303.2 shall be permitted within deck. framing members shall be not less than 3 inches (76
exterior wall assemblies of a 2 -hour rating or less. rpm) nominal in width.
602.4 Type IV. Type IV construction (Heavy Timber, HT) is
that type of construction in which the exterior walls are of 602.4.4 Floors. Floors shall be without concealed spaces.
noncombustible materials and the interior building elements Wood floors shall be of sawn or glued laminated planks,
are of solid or laminated wood without concealed spaces. The splined, or tongue-and-groove. of not less than 3 inches (76
details of Type IV construction shall comply with the provi- mm) nominal in thickness covered with 1 -inch (25.4 mm)
sions of this section. Fire - retardant- treated wood framing nominal dimension tongue-and-groove flooring, laid
complying with Section 2303.2 shall be permitted within crosswise or diagonally. or 0.5 inch (12.7 mm) particle
exterior wall assemblies with a 2-hour rating or less. board or planks not less than 4 inches (102 mm) nominal
in width set on edge close together and well spiked and
602.4.1 Columns. Wood columns shall be sawn or glued covered with 1 inch (25.4 mm). nominal, dimension floor -
laminated and shall not be less than 8 inches (203 mm), ing or I/2-inch (12.7 mm) wood structural panel or 0.5 -inch
nominal, in any dimension where supporting floor Toads (12.7 mm) particle board. The lumber shall be laid so that
and not less than 6 inches (152 mm) nominal in width and no continuous line of joints will occur except at points of
not less than 8 inches (203 mm) nominal in depth where support. Floors shall not extend closer than 0.5 inch (12.7
supporting roof and ceiling loads only. Columns shall be mm) to walls. Such 0.5 -inch (12.7 mm) space shall be cov-
continuous or superimposed and connected in an ered by a molding fastened to the wall and so arranged that
approved manner. it will not obstruct the swelling PP or shrinkage move
2000 INTERNATIONAL BUILDING CODE A7
,
602.4.5 - 603.1 TYPES OF CONSTRUCTION
44, ments of the floor. Corbeling_ of masonry w alls under the 4. Roof coverings that have an A. B or C classification.
Moor may be used in place of molding. 5. Interior floor finish and interior finish, trine and mill - •
6(12.45 Roofs. Roofs shall be without concealed spaces and work such as doors, door frames, window sashes and
wood roof decks shall he sawn or glued laminated. splined or frames.
tongue - and - groove plank. not Tess than 2 inches (51 mm) 6. Where not installed over 15 feet (4572 mm) above
thick, 1 1 /8 (32 mm) -inch -thick wood structural panel (exteri- grade. show windows, nailing or furring strips, wood -
or glue). or of planks not less than 3 inches (76 mm) nominal en bulkheads below show windows, their frames,
wide, set on edge close together and laid as required for
aprons and show cases.
floors. Other types of decking may he used if providing
equivalent tire resistance and structural properties. 7. Finish flooring applied directly to the floor slab or to
wood sleepers that are firestopped in accordance with
602.4.6 Partitions. Partitions shall he of solid wood con- Section 716.2.7.
struction funned by not less than two layers of 1 -inch (25
8. Partitions dividing portions of stores, offices or similar
mm) matched hoards or laminated construction 4 inches (100
nun) thick. or of 1-hour fire-resistance-rated construction. places occupied by one tenant only and which do not
establish a corridor serving an occupant Toad of 30 or
602.4.7 Exterior structural members. Where a horizon- more may he constructed of fire- retardant - treated
tal separation of 20 feet (6096 mm) or more is provided. wood. 1 -hour fire - resistive construction or of wood
wood columns and arches conforming to heavy timber panels or similar light construction up to 6 feet (1829
sizes nia be used externall■.
min) in height.
6 02.5 Type V. Type V construction is that type of construe- 9. Platforms as permitted in Section 410.
tion in which the structural elements, exterior walls and inte- 10. Materials complying with Section 602 of the
rior walls are of any materials permitted by this code. /rrteritcrlinnal llec /ranicu! Code.
SECTION 603 11. Combustible exterior wall coverings, balconies, bay or
COMBUSTIBLE MATERIAL IN TYPES I oriel windows, or similar appendages in accordance
AND II CONSTRUCTION with Chapter 14.
603.1 Allowable uses. Combustible materials are permitted 12. Bl °ckin�- such as for handrails. millwork, cabinets, and
in buildings of Type I and Type II construction in the follow- window and door frames.
ing applications: 13. Light- transmitting plastics as permitted by Chapter 26.
14. Mastics and caulking materials applied to provide flex
1. Fire - retardant - treated wood shall be permitted in:
1.1. Nonbearing partitions where the required fire- ible seals between components of exterior wall con -
resistance rating is 2 hours or less. struction.
15. Exterior plastic veneer installed in accordance with
1.2. Nonbearing exterior walls where no fire rating
is required. Section 2605.2.
1.3. Roof construction as permitted in Table 601. 16. Nailing or furring strips as permitted by Section 803.3.
Note c. Item 3. 17. Heavy timber as permitted by Note C. Item 2, to Table
2. Thermal and acoustical insulation, other than foam 601 and Sections 602.4.7 and 1406.3.
plastics, having a flame spread index of not more than
25 18. Aggregates, component materials and admixtures as
permitted by Section 703.2.2.
Exceptions: 19. Sprayed cementitious and mineral fiber fire - resistive
1. Insulation placed between two layers of noncom- materials installed to comply with Section 1704.11.
bustible materials without an intervening air I
20. Materials used to protect penetrations in tire- resistance -rated
space shall be allowed to have a flame spread
index of not more than 100. assemblies in accordance with Section 711.
21 • Materials used to protect joints in fire-resistance-rated
2. Insulation installed between a finished floor and
solid decking without intervening air space shall assemblies in accordance with Section 712.
be allowed to have a flame spread index of not
22. Materials allowed in the concealed spaces of buildings
more than 200.
of Types 1 and II construction in accordance with
3. Foam plastics in accordance with Chapter 26.
Section 716.5.
88
2000 INTERNATIONAL BUILDING CODE®
•
TYPES OF CONSTRUCTION TABLE 601 — TABLE 602
TABLE 601
FIRE - RESISTANCE RATING REQUIREMENTS FOR BUILDING ELEMENTS (hours)
TYPE I TYPE II TYPE III TYPE IV TYPE V
BUILDING ELEMENT A B Ad B Ad B HT Ad B
Structural tranua
Including columns, girders, trusses 3n 'h 1 0 1 0 HT 1 0
Bearing walls
Exterior 3 2 1 0 2 2 2 1 0
Interior 3h _t I 0 I 0 I /HT I 0
Nonhcaring walls and partitions
Exterior See Table 602
Interior See Section 602
Floor construction
Including supporting beans 2 2 I 0 1 0 HT 1 0
and joists
Root construction
Including supporting beams 11/2'' lc Ic 0- I 0 HT lc 0
and joists
For SI: I [Out = 3114.8 i
a. The structural Irame shall he considered to he the columns and the girders. heamts. trusses and spandrels having direct connections to the columns and
bracing members designed to carry gravity loads. The members of floor or root' panels which has c no connection to the columns shall he considered
secondary members and not it part 01 the structural frame.
h. Roof supports: F ire - resistance ratings of structural frame and hearing walls are permitted to he reduced by I hour where s upporting a roof only.
e. I. Except in Factory-Industrial ( - I). Hwardous i11s. Mercantile (NI) and Moderate Haiard Storage (5 -1) occupancies, fire protection of s tructur-
al members shall not he required. including protection of roof fr and decking where every part of the roof construction is 211 feet or more
above any floor immediately below. Fire - retardant - orated wood members shall he allowed to he used for such unprotected memhers.
2. In all occupancies, heavy timber shall he allowed ,,here a I -hour or less lire - resistance rating is required.
. In 'hype 1 and "type it consuvction, D ire- retardant - treated 510051 shall he allowed in buildings not os MO stories including girders and trusses
as part of the rood construction.
d. An approved automatic sprinkler system in accordance with Section 903.3.1.1 shall he allnvved to he substituted for I -hour fire - resistance -rated crnr
struction, provided such system is not otherwise required he other provisions of the code or used for an allowable area increase in aecordanee with
Section 506? or an allowable height increase in accordance with Section 5(14.2. The I -hour substitution for the lire resistance 01 exterior walls shall
not he permitted.
e. For interior nonhcaring partitions in "hype IV construction. also see Section 61)2.4.6.
I. Not Is than the fire-resistance rating haled on fire separation distance (see Kahle 602.)
TABLE 602
FIRE- RESISTANCE RATING REQUIREMENTS FOR EXTERIOR WALLS BASED ON FIRE SEPARATION DISTANCEa
FIRE
SEPARATION
DISTANCE TYPE OF GROUP GROUP F -1, GROUP A,B,E,
(feet) CONSTRUCTION H M, S -1 F -2, 1, Rb, S -2, U
< Sc All 3 2 I
• 5 I -A 3 2 I
< 10 Others 2 I I
• 10 1 -A, 1 -B 2 I I
< 30 II -B. V -B I 0 0
Others 1 1 1
>_ 30 All 0 0 0
For SI: I foot = 304.8 inn.
a. Load - hearing exterior walls shall also comply with the fire - resistance rating requirements of Table 601.
b. Group R - and Group U when used as accessory' to Group R -3, as applicable in Section 101.2 shall not he required to have a fire - resistance rating. syhere
fire separation distance is 3 feet or more.
c. See Section 5032 for party walls.
2000 INTERNATIONAL BUILDING CODE® 89
1503 — 1505.1 ROOF ASSEMBLIES AND ROOFTOP STRUCTURES
SECTION 1503 1504.3 Wind resistance of nonballasted roofs. Roof cover-
- WEATHER PROTECTION ings installed on roofs in accordance with Section 1507 that
are mechanically attached or adhered to the roof deck shall
1503.1 General. Roof decks shall be covered with approved be designed to resist the design wind load pressures for
roof coverings secured to the building or structure in actor- cladding
in Chapter 16.
dance with the provisions of this chapter. Roof coverings
shall be designed. installed and maintained in accordance
with this code and the approved manufacturer's installation 15043.1 Other roof systems. Roof systems with built -
instructions such that the roof covering shall serve to protect uP• modified bitumen, fully adhered or mechanically
the building_ or structure. attached single -ply through fastened metal panel roof sys-
tems. and other types of membrane roof coverings shall
1503.2 Flashing. Flashing .hall he installed in such a man also he tested in accordance with FM 4450, FM 4470, UL
ner as to prevent moisture entering the wall through the joints 580 or UL 1897.
in the coping, through moisture - permeable material. at inter-
sections with the roof plane or at parapet wall penetrations. 15043.2 Metal panel roof systems. Metal panel roof sys-
tems through fastened or standing seam shall be tested in
1503?.1 Locations. Flashing shall he installed at wall and accordance with UL 580 or ASTM E 1592.
roof intersections: at gutters: wherever there is a change in
roof slope or direction: and around roof openings. Where 1504.4 Ballasted low -slope roof systems. Ballasted low -
flashing is of metal. the metal shall be corrosion resistant
slope (roof slope < 2:12) single-ply roof sv stem coverings
with a thickness of not less than 0.019 inch (No. 26 gal- 1 I I -
vanized sheet).
installed in accordance with Section 1507 shall he designed
in accordance with ANSI /RMA /SPR1 RP -4.
15033 Coping. Parapet walls shall he properly coped with
noncombustible, weatherproof materials of a width no less 1504.5 Physical properties. Roof coverings installed on low
than the thickness of the parapet wall. slope roofs (roof slope < 2:12) in accordance with Section
1507 shall demonstrate physical integrity over the working
[P] 1503.4 Roof drainage. Design and installation of roof life of the roof based upon 2.000 hours of exposure to accel-
drainage systems shall comply with the International crated weathering tests conducted in accordance with ASTM
Plumbing Code. G23. ASTM G26 or ASTM G53. Those roof coverings that
are subject to cyclical flexural response due to wind loads
1503.4.1 Gutters. Gutters and leaders placed on the out shall not demonstrate any significant loss of tensile strength
side of buildings. other than Group R -3 as applicable in
for unreinforced membranes or breaking strength for rein -
Section 101.2. private garages, and•buildings of Type V
construction. shall he of noncombustible material or a forced membranes when tested as herein required.
minimum of Schedule 40 plastic pipe.
1504.6 Impact resistance. Roof coverings installed on low -
1503.5 Roof ventilation. Intake and exhaust vents shall he slope roofs (roof slope < 2:12) in accordance with Section
provided in accordance with Section 1202.2 and the manu- 1507 shall resist impact damage based on the results of tests
facturer's installation instructions. conducted in accordance with ASTM D 3746. AST \1 D
4272, CGSB 37- GP -52M or FM 4470.
SECTION 1504
PERFORMANCE REQUIREMENTS SECTION 1505
FIRE CLASSIFICATION
•
1504.1 Wind resistance of roofs. Roof decks and roof cov-
erings shall be designed for wind loads in accordance with
1505.1 General. Roof assemblies shall be divided into the
Chapter 16 and Sections 15042. 1504.3 and 1504.4.
classes defined below. Class A. B and C root assemblies and
Exception: Asphalt shingles shall be connected to the roof coverings required to he listed by this section shall be
roof deck in accordance with Section 1507.2. tested in accordance with ASTM E 108 or UL 790. 111 addi-
lion, fire- retardant - treated wood roof coverings shall he test -
1504.2 Wind resistance of clay and concrete tile. Clay and ed in accordance with ASTM D 2898. The minimum roof
concrete tile root coverings shall he connected to the roof coverings installed on buildings shall comply with Table
deck in accordance v■ ith Chapter 16. 1505.1 based on the type of construction of the building.
276 2000 INTERNATIONAL BUILDING CODER
•
ROOF ASSEMBLIES AND ROOFTOP STRUCTURES TABLE 1505.1 — 1507.1
TABLE 1505.1a 1505.6.1 Fire- retardant - treated shingles and shakes.
MINIMUM ROOF COVERING CLASSIFICATION Fire - retardant - treated wood shakes and shingles shall he
FOR TYPES OF CONSTRUCTION treated by impregnation with chemicals by the full -cell
IA IB IIA IIB ILIA IIIB IV VA VB vacuum - pressure process, in accordance with AWPA C 1 .
B B B Cc B Cc B B Cc Each bundle shall he marked to identify the manufactured
unit and the manufacturer. and shall also be labeled to
For SI: 1 foot = 3oa.2i nun, 1 square toot = 0.0929 m identify the classification of the material in accordance
a. Unless otherwise required in accordance with the Urban llih//und with the testing required in Section 1505.6 (Class B or C').
/ e Code or due to the location of the building within a fire district
n accordance with Appendix U. the treating company and the quality control agency.
h. Nonclassified root coverings shall he permitted on buildings of Group R-
3 as applicable in Section 101.2 and U occupancies. where there is a min- 1505.7 Special purpose roofs. Special purpose wood shingle
imam fire-separation distance of 6 feet measured from the leading edge
I or wood shake roofing shall conform with the grading and
of the roof.
c. Buildinfs that are not more than two stories in height and having not application requirements of Section 1507.8 or 1507.9. In
more than 6.001) square feet of projected roof area and sshere there is a addition. an underlayment of 0.625 inch (15.9 mm) Type X
minimum 10 -toot fire- separation distance from the leading edge of the
roof to a lot line on all sides of the building. except for street fronts or
water - resistant gypsum backing board or gypsum sheathing
public wags. shall he permitted to have rook of No. 1 cedar or redwood shall be placed under minimum nominal 0.5-inch -thick (12.7
shakes and No. 1 shingles constructed in accordance with Section mm) wood structural panel solid sheathing or I -inch (25 min)
1505.6.
nominal spaced sheathing.
1505.2 Class A roof assemblies. Class A roof assemblies are SECTION 1506
those that are effective against severe fire test exposure. MATERIALS
Class A roof assemblies and root coverings shall be listed and
identified as Class A by an approved testing agency. Class A 1506.1 Scope. The requirements set forth in this section shall
root assemblies shall be permitted for use in buildings or apply to the application of root covering materials specified
structures of all types of construction. herein. Roof coverings shall be applied in accordance with
Exception: Class A roof assemblies include those with cover- this chapter and the manufacturer's installation instructions.
ings of prick, masonry, slate, day or concrete root tile, exposed Installation of roof coverings shall comply with the appt ica
concrete roof deck, ferrous or copper shingles or sheets. ble provisions of Section 1507.
15053 Class B roof assemblies. Class B root assemblies are 1506.2 Compatibility of materials. Rook and roof coverings
those that are effective against moderate fire -test exposure. shall he of materials that are compatible with each other and
Class B roof assemblies and roof coverings shall be listed with the building or stricture to which the materials are applied.
and identified as Class B by an approved testing agency.
1506.3 Material specifications and physical characteris-
Exception: Class B roof assemblies include those with tics. Roof covering materials shall conform to the applicable
coverings of metal sheets and shingles. standards listed in this chapter. In the absence of applicable
standards or where materials are of questionable suitahility.
1505.4 Class C roof assemblies. Class C roof assemblies are testing by an approved testing agency shall he required by the
those that are effective against light fire -test exposure. Class building official to determine the character. quality and limi-
C roof assemblies and roof coverings shall be listed and iden Cations of application of the materials.
tified as Class C by an approved testing agency.
1506.4 Product identification. Root' covering materials
1505.5 Nonclassified roofing. Nonclassified roofing is shall be delivered in packages bearing the manufacturer's
approved material that is not listed as a Class A, Class B or identifying marks and approved testing agency labels
Class C roof covering. required in accordance with Section 1505. Bulk shipments of
materials shall he accompanied xvith the same information
1505.6 Wood shingles and shakes. When testing wood shin- issued in the form of a certificate or on a bill of lading by the
gles and shakes in accordance with ASTM E 108 and ASTM
manufacturer.
D 2898 (including Method A and B of the rain test), the tire
tests shall include the intermittent Flame test, spread of flame SECTION 1507
test, burning brand test and flying brand test. Additionally. at REQUIREMENTS FOR ROOF COVERINGS
the conclusion of the ram test, test panels shall be subjected
to the intermittent flame test, burning brand test and flying 1507.1 Scope. Roof coverings shall he applied jn accord;uxe
brand test. Shakes and shingles shall also be subjected to the with the applicable provisions of this section and the m;uu1-
. " weathering test as specified in UL 790. facturer's installation instruction;.
2000 INTERNATIONAL BUILDING CODE® 277
Appendix B
FIRE -FLOW REQUIREMENTS FOR BUILDINGS
SECTION B101 B104.3 Type IA and Type IB construction. The fire area of
GENERAL buildings constructed of Type IA and Type IB construction
B101.1 Scope. The procedure for determining fire -flow re- be the area of the three largest successive floors.
quirements for buildings or portions of buildings hereafter con- Exception: Fire area for open parking garages shall be de-
structed shall be in accordance with this appendix. This termined by the area of the largest floor.
appendix does not apply to structures other than buildings.
SECTION B105
FIRE -FLOW REQUIREMENTS FOR BUILDINGS
SECTION B102 B105.1 One- and two - family dwellings. The minimum fire
DEFINITIONS flow requirements for one- and two - family dwellings having a
B102.1 Definitions. For the purpose of this appendix, certain tire area which does not exceed 3,600 square feet (344 m shall
terms are defined as follows: be 1,000 gallons per minute (3785 1_/min). Fire flow and flow
FIRE AREA. The floor area, in square feet, used to determine duration for dwellings having a fire area in excess of 3,600
the required fire flow. square feet (344 m -) shall not be less than that specified in Table
B105.1.
FIRE FLOW. The Clow rate of a water supply, measured at 20 Exception: A reduction in required fire Clow of 50 percent,
pounds per square inch (psi) (138 kPa) residual pressure, that is as approved, is allowed where the building
available for fire fighting. PP is equipped
throughout with an approved automatic sprinkler system in
accordance with Chapter 9 of the International Fire Code.
• B105.2 Buildings other than one- and two- family dwellings.
SECTION B103 The minimum tire flow and flow duration for buildings other
MODIFICATIONS than one- and two - famil• ellings shall be as specified in Ta-
B103.1 Decreases. The fire chief is authorized to reduce the ble B105.1.
fire -flow requirements for isolated buildings or a group of Exception: A reduction in required tire flow of up to 75 per-
buildings in rural areas or small communities where the devel- cent, as approved, is allow when the building is provided
opment of full lire -flow requirements is impractical. with an approved automatic sprinkler system installed in ac-
B103.2 Increases. The fire chief is authorized to increase the tional with Section 903.3.1.1 or 903.3.1.2 of the lntcrnu-
fire -flow requirements where conditions indicate an unusual tnal Fire Code. The resulting fire flow shall not he less
susceptibility to group fires or conflagrations. An increase shall than 1,500 gallons per minute (5678 L /min.).
not be more than twice that required for the building under con-
sideration.
B103.3 Areas without water supply systems. For informa-
tion regarding water supplies for fire - fighting purposes in rural
I and suburban areas in which adequate and reliable water supply
systems do not exist, the code official is authorized to utilize
NFPA 1231 or the IFCI Urban Wildland Interface Code.
SECTION 8104
FIRE AREA
104,1 General. The fire area shall be the total floor area of all
floor levels within the exterior walls, and under the horizontal
• Projections of the roof of a building used to protect storage or
I us areas, except as modified in Sections B104.2 and B104.3.
• K `' 8104.2 Area separation. Portions of buildings which are sepa-
„rated by fire walls without openings constructed in accordance
With the International Building Code are allowed to be consid-
t ed as separate lire areas.
„" IN TERNATIONAL FIRE CODE® 357
APPENDIX B FIRE -FLOW REQUIREMENTS FOR B t `
UILDIN .4 ,
a -
Fs ':
`i4 ,
Amt a,
]ti
TABLE B105.1 ;.t 7y
MINIMUM REQUIRED FIRE FLOW AND FLOW DURATION FOR BUILDINGS
FIRE AREA (square feet)
— FIRE FLOW FLOW -
Type IA and IB' Type HA and 111A' Type IV and V -A' Type IIB and 111B Type V -B' (gallons per minute) DURATION (hours)
0- 22,700 0- 12,700 0 -8.200 0 -5,900 0 -3,600 1,500
22,701 -30.200 12,701- 17,000 8,201 - 10,900 5,901 - 7,900 3,601 -4,800 1,750
30,201-38,700 17,001 - 21.800 10.901 - 12.900 7,901 -9,800 4,801 -6.200 2,000
38,701 - 48,300 21,801- 24,200 12,901- 17,400 9,801- 12,600 6.201 -7,700 2,250 2 C
H itl
48.301- 59,000 24,201- 33.200 17,401 - 21,300 12,601 - 15,400 7.701 -9,400 2,500 bull
59,001- 70,900 33.201- 39.700 21,301- 25,500 15,401 - 18.400 9,401 - 11,300 2,750
70,901- 83,700 39,701- 47,100 a 25,501- 30,100 18,401 - 21.800 11.301- 13,400 3,000
emu* 83,701- 97,700 47.101- 54.900 30,1 - 35,200 21,801- 25.900 13.401- 15,600 111 3,250 4116.....
3 5
97,701- 112,700 54.901 - 63.400 35,201- 40,600 25.901- 29.300 15.601- 18,000 3,500 1 Cl
112,701 - 128,700 63.401- 72.400 40,601- 46,400 29,301- 33.500 18.001 - 20,600 3,750 1 N1`
128.701- 145,900 72,401- 82.100 46,401- 52,500 33,501- 37,900 20.601- 23,300 4,000 Pt
145,901- 164,200 82,101- 92.400 52.501- 59,100 37,901 - 42,700 23.301- 26.300 4,250
164.201-183,400 92,401 - 103.100 59,101- 66,000 42,701 - 47,700 26.301 - 29,300 4.500
183.401- 203,700 103,101- 114,600 66,001- 73.300 47,701- 53,000 29.301- 32,600 4,750 (
203,701 - 225.200 114,601- 126,700 73.301- 81,100 53,001 - 58.600 32,601- 36.000 5,000 1
225.201 - 247,700 126,701 - 139.400 81,101- 89,200 58,601- 65,400 36.001 - 39.600 5.250
247,701- 271.200 139,401 - 152.600 89.201- 97,700 65.401- 70.600 39.601- 43,400 5.500
271 ,201- 295900 152,601 - 166.500 97,701 - 106,500 70.601 - 77.000 43.401 - 47,400 5.750
295,901 - Greater 166,501- Greater 106,501 - 115,800 77,001 - 83.700 47.401- 51.500 6,000 4
— — 115.801- 125,500 83.701 - 90.600 51,501- 55,700 6,250
— — 125.501- 135,500 90.601- 97.900 55.701- 60.200 6,500
— — 135,501 - 145.800 97,901 - 106.800 60.201 - 64.800 6,750
— — 145.801- 156,700 106,801 - 113,200 64.801- 69,600 7,000
— — 156,701- 167,900 113,201- 121,300 69.601 - 74,600 7,250
— — 167.901- 179,400 121,301 - 129,600 74.601- 79.800 7,500
— — 179,401 - 191,400 129.601 - 138.300 79.801- 85.100 7,750
— — 191.401 - Greater 138.301- Greater 85.101 - Greater 8,000
For SI: 1 square foot = 0.0929 rn 1 gallon per minute = 3.785 L /m, 1 pound per square inch = 6.895 kPa.
a Types of construction are based on the Internatianal Building Code.
b. Measured at 20 psi.
358 2000 INTERNATIONAL FIRE CODE®
Appendix C
FIRE HYDRANT LOCATIONS AND DISTRIBUTION
SECTION C101 SECTION C104
GENERAL CONSIDERATION OF EXISTING FIRE HYDRANTS
C101.1 Scope. Fire hydrants shall be provided in accordance
with this appendix for the protection of buildines, or portions of C104.1 Existing fire hydrants. Existing fire hydrants on pub -
buildings, hereafter constructed. lie streets are allowed to be considered as available. Existim
fire hydrants on adjacent properties shall not be considered
available unless fire apparatus access roads extend between
SECTION C102 properties and easements are established to prevent obstruction
LOCATION of such roads.
C102.1 Fire hydrant locations. Fire hydrants shall be pro-
vided along required fire apparatus access roads and adjacent
public streets.
SECTION C105
DISTRIBUTION OF FIRE HYDRANTS
SECTION C103 C105.1 Hydrant spacing. The average spacing between lire
NUMBER OF FIRE HYDRANTS hydrants shall not exceed that listed in Table C105.1.
C103.1 Fire hydrants available. The minimum number of fire
hydrants available to a building shall not be less than that listed Exception: The fire chief is authorized to accept a dcli-
ciency of up to 10 percent where existing fire hydrants pro -
in Table CI05.1. The number of fire hydrants available to a
complex or subdivision shall not be less than that determined vide all or a portion of the required fire hydrant service.
by spacing requirements listed in Table C105.1 when applied to Regardless of the average spacing, fire hydrants shall be lo-
fire apparatus access roads and perimeter public streets from cated such that all points on streets and access roads adjacent to
which fire operations could be conducted, a building are within the distances listed in Table C105.1.
TABLE C105.1
NUMBER AND DISTRIBUTION OF FIRE HYDRANTS
FIRE -FLOW REQUIREMENT AVERAGE SPACING MAXIMUM DISTANCE FROM
MINIMUM NUMBER BETWEEN HYDRANTS°' b ' c ANY POINT ON STREET OR ROAD
•
( gp m ) OF HYDRANTS (feet) FRONTAGE TO A HYDRANT
1,750 or less 1
500 _ 250
2,000- 2.250 2 450 225
2,500 3 450 225
3.000 3 400 225
3,500 -4,000 4 350 _ 210
4,500- 5,000 5 300
180
5,500 6 300
180
6,000 6 250
150
6,500 -7,000 7 250
150
7,500 or more 8 or more` 200
120
For SI: 1 foot = 304.8 mm, 1 gallon per minute = 3.785 Um.
a. Reduce by 100 feet for dead -end streets or roads.
It t b. Where streets are provided with median dividers which can be crossed by tire fighters pulling hose lines. or where arterial streets are provided with four or more
traffic lanes and have a traffic count of more than 30,000 vehicles per day, hydrant spacing shall average 500 feet on each side of the street and be arranged on an al-
ternating basis up to a fire -flow requirement of 7,000 gallons per minute and 400 feet for higher fire -Flow requirements.
c. Where new water mains are extended along streets where hydrants are not needed for protection of structures or similar fire problems, fire hydrants shall be pro-
:': 1-,t;::. vided at spacing not to exceed 1,000 feet to provide for transportation hazards.
a - t d. Reduce by 50 It for dead -end streets or roads.
e. One hydrant for each 1,000 gallons per minute or fraction thereof.
ti 20 00 I NTERNATIONAL FIRE CODED
359