Section BB105 — California Fire Code (Title 24, Part 9)

FIRE-FLOW REQUIREMENTS FOR BUILDINGS

BB105.1 The minimum fire flow and flow duration for school¶

buildings shall be as specified in Table BB105.1.

Exception: A reduction in required fire flow of up to 75 percent is allowed when the building is provided with an approved automatic sprinkler system. When a reduction in fire flow is used, fire flow shall not be less than 1500 GPM.

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APPENDIX BB—FIRE-FLOW REQUIREMENTS FOR BUILDINGS

TABLE BB105.1 MINIMUM REQUIRED FIRE-FLOW AND FLOW DURATION FOR BUILDINGS

FIRE AREA (square feet)					FIRE-FLOW (gallons per minute)b	FLOW DURATION (hours)
*Type IA and IB a*	*Type IIA and IIIA a*	*Type IV and V-A a*	*Type IIB and IIIB a*	*Type V-B a*	*Type V-B a*	*Type V-B a*
0-22,700	0-12,700	0-8,200	0-5,900	0-3,600	1,500	2
22,701-30,200	12,701-17,000	8,201-10,900	5,901-7,900	3,601-4,800	1,750	1,750
30,201-38,700	17,001-21,800	10,901-12,900	7,901-9,800	4,801-6,200	2,000	2,000
38,701-48,300	21,801-24,200	12,901-17,400	9,801-12,600	6,201-7,700	2,250	2,250
48,301-59,000	24,201-33,200	17,401-21,300	12,601-15,400	7,701-9,400	2,500	2,500
59,001-70,900	33,201-39,700	21,301-25,500	15,401-18,400	9,401-11,300	2,750	2,750
70,901-83,700	39,701-47,100	25,501-30,100	18,401-21,800	11,301-13,400	3,000	_3 _
83,701-97,700	47,101-54,900	30,101-35,200	21,801-25,900	13,401-15,600	3,250	3,250
97,701-112,700	54,901-63,400	35,201-40,600	25,901-29,300	15,601-18,000	3,500	3,500
112,701-128,700	63,401-72,400	40,601-46,400	29,301-33,500	18,001-20,600	3,750	3,750
128,701-145,900	72,401-82,100	46,401-52,500	33,501-37,900	20,601-23,300	4,000	_4 _
145,901-164,200	82,101-92,400	52,501-59,100	37,901-42,700	23,301-26,300	4,250	4,250
164,201-183,400	92,401-103,100	59,101-66,000	42,701-47,700	26,301-29,300	4,500	4,500
183,401-203,700	103,101-114,600	66,001-73,300	47,701-53,000	29,301-32,600	4,750	4,750
203,701-225,200	114,601-126,700	73,301-81,100	53,001-58,600	32,601-36,000	5,000	5,000
225,201-247,700	126,701-139,400	81,101-89,200	58,601-65,400	36,001-39,600	5,250	5,250
247,701-271,200	139,401-152,600	89,201-97,700	65,401-70,600	39,601-43,400	5,500	5,500
271,201-295,900	152,601-166,500	97,701-106,500	70,601-77,000	43,401-47,400	5,750	5,750
295,901-Greater	166,501-Greater	106,501-115,800	77,001-83,700	47,401-51,500	6,000	6,000
_— _	_— _	115,801-125,500	83,701-90,600	51,501-55,700	6,250	6,250
_— _	_— _	125,501-135,500	90,601-97,900	55,701-60,200	6,500	6,500
_— _	_— _	135,501-145,800	97,901-106,800	60,201-64,800	6,750	6,750
_— _	_— _	145,801-156,700	106,801-113,200	64,801-69,600	7,000	7,000
_— _	_— _	156,701-167,900	113,201-121,300	69,601-74,600	7,250	7,250
_— _	_— _	167,901-179,400	121,301-129,600	74,601-79,800	7,500	7,500
_— _	_— _	179,401-191,400	129,601-138,300	79,801-85,100	7,750	7,750
_— _	_— _	191,401-Greater	138,301-Greater	85,101-Greater	8,000	8,000

For SI: 1 square foot = 0.0929 m ², 1 gallon per minute = 3.785 L/m, 1 pound per square inch = 6.895kPa. a. Types of construction are based on the California Building Code. b. Measured at 20 psi.

APPENDIX BB-4 2022 CALIFORNIA FIRE CODE

CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE APPENDIX C – FIRE HYDRANT LOCATIONS AND DISTRIBUTION

(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user.

See Chapter 1 for state agency authority and building applications.)

Adopting Agency	BSC	BSC- CG	SFM		HCD			DSA		OSHPD						BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
Adopting Agency	BSC	BSC- CG	T-24	T-19*	1	2	1/AC	AC	SS	1	1R	2	3	4	5	5	5	5	5	5	5	5	5
Adopt Entire Chapter
Adopt Entire Chapter as amended (amended sections listed below)			X
Adopt only those sections that are listed below
[California Code of Regulations, Title 19, Division 1]
Chapter / Section
C101.1			X

The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title

19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same.

APPENDIX C-2 2022 CALIFORNIA FIRE CODE

APPENDIX C

FIRE HYDRANT LOCATIONS AND DISTRIBUTION

The provisions contained in this appendix are not mandatory unless specifically

referenced in the adopting ordinance or legislation of the jurisdiction.

User note:

About this appendix: Appendix C focuses on the location and spacing of fire hydrants, which is important to the success of fire-fighting oper- ations. The difficulty with determining the spacing of fire hydrants is that every situation is unique and has unique challenges. Finding one methodology for determining hydrant spacing is difficult. This particular appendix gives one methodology based on the required fire flow that fire departments can work with to set a policy for hydrant distribution around new buildings and facilities in conjunction with Section 507.5.

Exceptions & meaning →