Can automatic sprinklers be used to reduce required exits under the CHBC?

Grounded in the retrieved California Historical Building Code — click a citation to read the verbatim passage:

• CHBC § 8-302.3 High relevance — show source text

  8-302.3 Occupancy separations. Required occupancy separations of more than one hour may be reduced to one-hour fire-resistive construction with all openings protected by not less than three-fourths-hour fire-resistive assemblies of the self-closing or automatic-closing type when the building is provided with an automatic sprinkler system throughout the entire building in accordance with Section 8-410.2. Doors equipped with automatic-closing devices shall be of a type which will function upon activation of a device which responds to products of combustion other than heat.

  Required occupancy separations of one hour may be omitted when the building is provided with an automatic sprinkler system throughout.

  8-302.4 Maximum floor area. Regardless of the use or character of occupancy, the area of a one-story qualified historical building or property may have, but shall not exceed, a floor area of 15,000 square feet (1393.5 m [2] ) unless such an increase is otherwise permitted in regular code. Multistory qualified historical buildings (including basements and cellars) shall be in accordance with regular code requirements.

  Exception: Historical buildings may be unlimited in floor area without fire-resistive area separation walls:

  1. When provided with an automatic sprinkler, or
  2. Residential occupancies of two stories or less when provided with a complete fire alarm and annunciation system and where the exiting system conforms to regular code.

  8-302.5 Maximum height. The maximum height and number of stories of a qualified historical building or property shall not be limited because of construction type, provided such height or number of stories does not exceed that of its historical design.

  8-302.5.1 High-rise buildings. Occupancies B, F-1, F-2 or S in high-rise buildings with floors located more than 75 feet above the lowest floor level having building access may be permitted with only the stories over 75 feet provided with an automatic fire sprinkler system if:

  1. The building construction type and the exits conform to regular code, and
  2. A complete building fire alarm and annunciation system is installed, and
  3. A fire barrier is provided between the sprinklered and nonsprinklered floors.

  8-302.6 Fire-resistive construction. See Chapter 8-4.

  8-302.7 Light and ventilation. Existing provisions for light and ventilation which do not, in the opinion of the enforcing agency, constitute a safety hazard may remain. See Section 8-303.6 for residential requirements. See Section 8-503 for Escape or Rescue Windows and Doors.

  SECTION 8-303 — RESIDENTIAL OCCUPANCIES

  8-303.1 Purpose. The purpose of this section is to provide regulations for those buildings designated as qualified historical buildings or properties and classified as residential occupancies. The CHBC requires enforcing agencies to accept any reasonably equivalent alternative to the regular code when dealing with qualified historical buildings and properties.

  8-303.2 Intent. The intent of the CHBC is to preserve the integrity of qualified historical buildings and properties while maintaining a reasonable degree of protection of life, health and safety for the occupants.

  8-303.3 Application and scope. The provisions of this section shall apply to all qualified historical buildings used for human habitation. Those dwelling units intended only for display, or public use with no residential use involved, need not comply with the requirements of this section.

  8-303.4 Fire escapes. See Chapter 8-5.

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• CHBC § 8-409 High relevance — show source text

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  FIRE PROTECTION

  2. Wooden roof materials may be utilized where fire resistance is required, provided they are treated with fire-retardant treatments to achieve a Class “B” roof covering rating. Wood roofing in state designated Urban Wildland and High Fire Zones shall be permitted when installed in Class “A” assemblies.
  3. Jurisdictions that prohibit wood roofing materials for application as roof coverings and roof assemblies shall submit documentation for the adoption. Express Terms, statement of reasons and minutes of the action by the adopting authority Health and Safety Code, Section 18959(f).

  SECTION 8-409 — FIRE ALARM SYSTEMS

  Every qualified historical building or property shall be provided with fire alarm systems as required for the use or occupancy by the regular code or other approved alternative.

  SECTION 8-410 — AUTOMATIC SPRINKLER SYSTEMS

  8-410.1 Every qualified historical building or property which cannot be made to conform to the construction requirements specified in the regular code for the occupancy or use, and which constitutes a distinct fire hazard (for definition of “Distinct Hazard,” see Chapter 8-2), shall be deemed to be in compliance if provided with an automatic sprinkler system or a life safety system or other technologies as approved by the enforcing agency. (“Automatic” is defined in the regular code. “Sprinkler System” is defined in this section.)

  8-410.2 When required by the CHBC, an automatic sprinkler system is defined by the following standards as adopted by the State Fire Marshal (for nonhazardous occupancies).

  1. Buildings of four stories or less: NFPA 13R.

  2. For floors above the fourth, NFPA 13.

  3. Buildings with floors above 75 feet, NFPA 13.

  4. When the building is free standing or with property line separation, two floors and 1500 square feet per floor or less, NFPA 13D.

  5. For exterior wall and opening protection. As required by this chapter.

  Exception: When the automatic sprinkler systems are used to reach compliance using this code, in three or more occasions, NFPA 13D standard shall be increased to NFPA 13R standard, or NFPA 13R standard shall be increased to a NFPA 13 standard.

  8-410.3 Automatic sprinkler systems shall not be used to substitute for or act as an alternate to the required number of exits from any facility. (See Chapter 8-5 for exiting requirements.)

  8-410.4 An automatic sprinkler system shall be provided in all detention facilities.

  SECTION 8-411 — OTHER TECHNOLOGIES

  Fire alarm systems, smoke and heat detection systems, occupant notification and annunciation systems, smoke control systems and fire modeling, timed egress analysis and modeling, as well as other engineering methods and technologies may be accepted by the enforcing agency to address areas of nonconformance.

  SECTION 8-412 — HIGH-RISE BUILDINGS

  Qualified historical buildings having floors for human occupancy located more than 75 feet above the lowest floor level having building access shall conform to the provisions of the regular code for existing high-rise buildings as amended by the CHBC.

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  8-5 MEANS OF EGRESS

• CHBC § 505.2.2 High relevance — show source text

  505.2.2 Means of egress. The means of egress for mezzanines shall comply with the applicable provisions of Chapter 10.

  505.2.3 Openness. A mezzanine shall be open and unobstructed to the room in which such mezzanine is located except for walls not more than 42 inches (1067 mm) in height, columns and posts.

  Exceptions:

  1. Mezzanines or portions thereof are not required to be open to the room in which the mezzanines are located, provided that the occupant load of the aggregate area of the enclosed space is not greater than 10.

  2. A mezzanine having two or more exits or access to exits is not required to be open to the room in which the mezzanine is located.

  3. Mezzanines or portions thereof are not required to be open to the room in which the mezzanines are located, provided that the aggregate floor area of the enclosed space is not greater than 10 percent of the mezzanine area.

  4. In industrial facilities, mezzanines used for control equipment are permitted to be glazed on all sides.

  5. In occupancies other than Groups H and I, which are no more than two stories above grade plane and equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1, a mezzanine having two or more exits or access to exits shall not be required to be open to the room in which the mezzanine is located.

  505.3 Equipment platforms. Equipment platforms in buildings shall not be considered as a portion of the floor below. Such equipment platforms shall not contribute to either the building area or the number of stories as regulated by Section 503.1. The area of the equipment platform shall not be included in determining the fire area in accordance with Section 903. Equipment platforms shall not be a part of any mezzanine and such platforms and the walkways, stairways, alternating tread devices and ladders providing access to an equipment platform shall not serve as a part of the means of egress from the building.

  505.3.1 Area limitation. The aggregate area of all equipment platforms within a room shall be not greater than two-thirds of the area of the room in which they are located. Where an equipment platform is located in the same room as a mezzanine, the area of the mezzanine shall be determined by Section 505.2.1 and the combined aggregate area of the equipment platforms and mezzanines shall be not greater than two-thirds of the room in which they are located. The area of the mezzanine shall not exceed the area determined in accordance with Section 505.2.1.

  505.3.2 Automatic sprinkler system. Where located in a building that is required to be protected by an automatic sprinkler system, equipment platforms shall be fully protected by sprinklers above and below the platform, where required by the standards referenced in Section 903.3.

  505.3.3 Guards. Equipment platforms shall have guards where required by Section 1015.2.

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  GENERAL BUILDING HEIGHTS AND AREAS

  SECTION 506—BUILDING AREA

  506.1 General. The floor area of a building shall be determined based on the type of construction, occupancy classification, whether there is an automatic sprinkler system installed throughout the building and the amount of building frontage on public way or open

  space.

• CHBC § 8-303.6 High relevance — show source text

  8-303.6 Light and ventilation. Windows in habitable rooms shall have an area of 6 percent of the floor area, or 6 square feet (0.56 m [2] ), whichever is greater. Windows in sleeping rooms shall be openable (see Section 8-503). Residential occupancies need not be provided with electrical lighting.

  8-303.7 Alteration and repair. The alteration and repair of qualified historical buildings or properties may permit the replacement, retention and extension of original materials and the continued use of original methods of construction, provided a life safety hazard is not created or continued. Alterations and repairs shall be consistent with the CHBC.

  The amount of alterations and repairs is not limited, provided there is no nonhistorical increase in floor area, volume or size of the building or property.

  8-303.8 Exiting. See Chapter 8-5.

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  8-4 FIRE PROTECTION

  SECTION 8-401 — PURPOSE, INTENT AND SCOPE

  8-401.1 Purpose. The purpose of this chapter is to provide regulations for fire protection of qualified historical buildings or properties. The CHBC requires enforcing agencies to accept any reasonably equivalent alternatives to the regular code when dealing with qualified historical buildings or properties.

  8-401.2 Intent. The intent of the CHBC is to preserve the integrity of qualified historical buildings or properties while maintaining a reasonable degree of fire protection based primarily on the life safety of the occupants and firefighting personnel.

  8-401.3 Scope. This chapter shall apply when required by the provisions of Section 8-102.

  SECTION 8-402 — FIRE-RESISTIVE CONSTRUCTION

  8-402.1 Exterior wall construction. The fire-resistance requirement for existing exterior walls and existing opening protection may be satisfied when an automatic sprinkler system designed for exposure protection is installed per the CHBC. The automatic sprinklers may be installed on the exterior with at least one sprinkler located over each opening required to be protected. Additional sprinklers shall also be distributed along combustible walls under the roof lines that do not meet the fire-resistive requirement due to relationship to property lines as required by regular code. Such sprinkler systems may be connected to the domestic water supply on the supply-main side of the building shut-off valve. A shut-off valve may be installed for the sprinkler system, provided it is locked in an open position.

  8-402.2 One-hour construction. Upgrading an existing qualified historical building or property to one-hour fire-resistive construction and one-hour fire-resistive corridors shall not be required regardless of construction or occupancy when one of the following is provided:

  1. An automatic sprinkler system throughout. See Section 8-410 for automatic sprinkler systems.
  2. An approved life safety evaluation.
  3. Other alternative measures as approved by the enforcing agency.

  8-402.3 Openings in fire-rated systems. Historical glazing materials and solid wood unrated doors in interior walls required to have one-hour fire rating may be approved when operable windows and doors are provided with appropriate smoke seals and when the area affected is provided with an automatic sprinkler system. See Section 8-410 for automatic sprinkler systems.

  SECTION 8-403 — INTERIOR FINISH MATERIALS

• CHBC § 8-410.3 High relevance — show source text

  3. Buildings with floors above 75 feet, NFPA 13.

  4. When the building is free standing or with property line separation, two floors and 1500 square feet per floor or less, NFPA 13D.

  5. For exterior wall and opening protection. As required by this chapter.

  Exception: When the automatic sprinkler systems are used to reach compliance using this code, in three or more occasions, NFPA 13D standard shall be increased to NFPA 13R standard, or NFPA 13R standard shall be increased to a NFPA 13 standard.

  8-410.3 Automatic sprinkler systems shall not be used to substitute for or act as an alternate to the required number of exits from any facility. (See Chapter 8-5 for exiting requirements.)

  8-410.4 An automatic sprinkler system shall be provided in all detention facilities.

  SECTION 8-411 — OTHER TECHNOLOGIES

  Fire alarm systems, smoke and heat detection systems, occupant notification and annunciation systems, smoke control systems and fire modeling, timed egress analysis and modeling, as well as other engineering methods and technologies may be accepted by the enforcing agency to address areas of nonconformance.

  SECTION 8-412 — HIGH-RISE BUILDINGS

  Qualified historical buildings having floors for human occupancy located more than 75 feet above the lowest floor level having building access shall conform to the provisions of the regular code for existing high-rise buildings as amended by the CHBC.

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  8-5 MEANS OF EGRESS

  SECTION 8-501 — PURPOSE, INTENT AND SCOPE

  8-501.1 Purpose. The purpose of this chapter is to establish minimum means of egress regulations for qualified historical buildings or properties. The CHBC requires enforcing agencies to accept reasonably equivalent alternatives to the means of egress requirements in the regular code.

  8-501.2 Intent. The intent of these regulations is to provide an adequate means of egress.

  8-501.3 Scope. Every qualified historical building or portion thereof shall be provided with exits as required by the CHBC when required by the provisions of Section 8-102.

  SECTION 8-502 — GENERAL

  8-502.1 General. The enforcing agency shall grant reasonable exceptions to the specific provisions of applicable egress regulations where such exceptions will not adversely affect life safety.

  8-502.2. Existing door openings and corridor widths of less than dimensions required by regular code shall be permitted where there is sufficient width and height for the occupants to pass through the opening or traverse the exit.

  8-502.3 Stairs. Existing stairs having risers and treads or width at variance with the regular code are allowed if determined by the enforcing agency to not constitute a distinct hazard. Handrails with nonconforming grip size or extensions are allowed if determined by the enforcing agency to not constitute a distinct hazard.

  8-502.4 Main entry doors. The front or main entry doors need not be rehung to swing in the direction of exit travel, provided other means or conditions of exiting, as necessary to serve the total occupant load, are provided.

• CHBC § 314.6 High relevance — show source text

  All other vertical openings shall be enclosed in accordance with the provisions of Section 314.6 and_ 314.13.

  315.4 Exit access. Each floor or portion thereof of buildings used for the housing of existing protective social-care homes or facilities shall have access to not less than two exits in such a manner as to furnish egress from the building or structure in the event of an emergency substantially equivalent to the provisions of Chapter 10 of the California Building Code. 315.5 Corridor openings. Openings from rooms to interior corridors shall be protected by not less than 1 [3] / 4 -inch (44.5 mm) solid- bonded wood-core doors. Transoms and other similar openings shall be sealed with materials equivalent to existing corridor wall construction.

  315.6 Interior finishes. Interior wall and ceiling finishes shall conform to the requirements for a Group R-1 Occupancy as specified in Chapter 8 of the California Building Code.

  315.7 Automatic fire sprinklers. Automatic sprinkler systems shall be installed in existing protective social-care occupancies in accordance with the provisions of Section 903.2.6 of the California Building Code.

  315.8 Fire alarm systems. Automatic fire alarm systems shall be installed in existing protective social-care homes or facilities in accordance with the provisions of Section 907.2.6 of the California Building Code.

  Exception: When an approved automatic sprinkler system conforming to Section 903.2.6 of the California Building Code is installed, a separate fire alarm system as specified in this section need not be provided.

  SECTION 316 [SFM]—EXISTING GROUP L OCCUPANCIES

  316.1 Repairs general. Additions, alterations or repairs may be made to any building or structure without requiring the existing building or structure to comply with all the requirements of this code section, provided the addition, alteration or repair conforms to the requirements of this section.

  316.2 Unsafe condition. Additions, repairs or alterations shall not be made to an existing building or structure that will cause the existing building or structure to be in violation of any of the provisions of this code, nor shall such additions or alterations cause the existing building or structure to become unsafe, or to be in violation of any of the provisions of this code. An unsafe condition shall be deemed to have been created if an addition or alteration will cause the existing building or structure to become structurally unsafe or overloaded; will not provide adequate egress in compliance with the provisions of this code or will obstruct existing exits; will create a fire hazard; will reduce required fire resistance or will otherwise create conditions dangerous to human life.

  316.3 Changes in use or occupancy. Any buildings that have alternations or additions, which involves a change in use or occupancy, shall not exceed the height, number of stories and area permitted for new buildings.

  316.4 Buildings not in compliance with code. Additions or alterations shall not be made to an existing building or structure when such existing building or structure is not in full compliance with the provisions of this code except when such addition or alteration will result in the existing building or structure being no more hazardous, based on life safety, fire safety and sanitation, than before such additions or alterations are undertaken.

• CHBC § 8-3 High relevance — show source text

  TREATMENT. An act of work to carry out preservation, restoration, stabilization, rehabilitation or reconstruction.

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  8-3 USE AND OCCUPANCY

  SECTION 8-301 — PURPOSE AND SCOPE

  8-301.1 Purpose. The purpose of the CHBC is to provide regulations for the determination of occupancy classifications and conditions of use for qualified historical buildings or properties.

  8-301.2 Scope. Every qualified historical building or property for which a permit or approval has been requested shall be classified prior to permit issuance according to its use or the character of its occupancy in accordance with the regular code and applicable provisions of this chapter.

  SECTION 8-302 — GENERAL

  8-302.1 Existing use. The use or character of occupancy of a qualified historical building or property, or portion thereof, shall be permitted to continue in use regardless of any period of time in which it may have remained unoccupied or in other uses, provided such building or property otherwise conforms to all applicable requirements of the CHBC.

  8-302.2 Change in occupancy. The use or character of the occupancy of a qualified historical building or property may be changed from or returned to its historical use or character, provided the qualified historical building or property conforms to the requirements applicable to the new use or character of occupancy as set forth in the CHBC. Such change in occupancy shall not mandate conformance with new construction requirements as set forth in regular code.

  8-302.3 Occupancy separations. Required occupancy separations of more than one hour may be reduced to one-hour fire-resistive construction with all openings protected by not less than three-fourths-hour fire-resistive assemblies of the self-closing or automatic-closing type when the building is provided with an automatic sprinkler system throughout the entire building in accordance with Section 8-410.2. Doors equipped with automatic-closing devices shall be of a type which will function upon activation of a device which responds to products of combustion other than heat.

  Required occupancy separations of one hour may be omitted when the building is provided with an automatic sprinkler system throughout.

  8-302.4 Maximum floor area. Regardless of the use or character of occupancy, the area of a one-story qualified historical building or property may have, but shall not exceed, a floor area of 15,000 square feet (1393.5 m [2] ) unless such an increase is otherwise permitted in regular code. Multistory qualified historical buildings (including basements and cellars) shall be in accordance with regular code requirements.

  Exception: Historical buildings may be unlimited in floor area without fire-resistive area separation walls:

  1. When provided with an automatic sprinkler, or
  2. Residential occupancies of two stories or less when provided with a complete fire alarm and annunciation system and where the exiting system conforms to regular code.

  8-302.5 Maximum height. The maximum height and number of stories of a qualified historical building or property shall not be limited because of construction type, provided such height or number of stories does not exceed that of its historical design.

• CHBC § 3206.10. High relevance — show source text

  Where automatic sprinklers are required for reasons other than those in Chapter 32, the portion of the sprinkler system protecting the high-piled storage
  area shall be designed and installed in accordance with Sections 3207 and 3208.
  b. For aisles, see Section 3206.10.
  c. Piles shall be separated by aisles complying with Section 3206.10.
  d. For storage in excess of the height indicated, special fire protection shall be provided in accordance with Note f where required by the fire code official.
  See Chapters 51 and 57 for special limitations for aerosols and flammable and combustible liquids, respectively.
  e. For storage exceeding 30 feet in height, Option 1 shall be used.
  f.
  Special fire protection provisions including, but not limited to, fire protection of exposed steel columns; increased sprinkler density; additional in-rack
  sprinklers, without associated reductions in ceiling sprinkler density; or fire department hose connections shall be provided where required by the fire code
  official.
  g. Not required where an automatic fire-extinguishing system is designed and installed to protect the high-piled storage area in accordance with Sections
  3207 and 3208.
  h. Not required where storage areas_with an exit access travel distance of 250 feet (76 200 mm) or less are protected by either early suppression fast response
  (ESFR) sprinkler systems or control mode special application sprinklers with a response time index of 50 (meters-seconds)1/2 or less that are listed to control
  a fire in the stored commodities with 12 or fewer sprinklers, installed in accordance with Section 903.3.1.1._
  i.
  Not required in frozen food warehouses used solely for storage of Class I and II commodities where protected by an approved automatic sprinkler system.|

  3206.2.1 Extent of protection. The fire safety features required in Table 3206.2 shall extend to the lesser of 15 feet (4572 mm) beyond the high-piled storage area or a full height wall. Where portions of high-piled storage areas have different fire protection requirements because of commodity, method of storage or storage height, the fire protection features required by Table 3206.2 within this area shall be based on the most restrictive design requirements.

  3206.3 High-piled storage areas. For the application of Table 3206.2, the size of the high-piled storage areas shall be determined in accordance with Sections 3206.3.1 through 3206.3.2.1.

  3206.3.1 Size of high-piled storage area. The size of each high-piled storage area shall include the footprint of the actual highpiled storage racks, shelves or piles and the following aisles:

  1. Interior aisles within the footprint of the storage area.
  2. An aisle around the perimeter of the footprint with a minimum width as required in Section 3206.10.1 or the dimension to a full height wall, whichever is less.
• CHBC § 406.9.3 High relevance — show source text

  Exception: Positive pressure ventilation systems shall only be allowed in buildings or areas that have been designed and approved for that application.

  406.9.3 Electrical interface. The electrical supply circuit to electrically powered mechanical ventilation equipment shall be inter- locked with the recharging equipment used to supply the vehicle(s) being charged, and shall remain energized during the entire charging cycle. Electric vehicle recharging equipment shall be marked or labeled in accordance with the California Electrical Code.

  Exceptions:

  1. Exhaust ventilation shall not be required in areas with an approved engineered ventilation system, which maintains a hydrogen gas concentration at less than 25 percent of the lower flammability limit. 2. Mechanical exhaust ventilation for hydrogen shall not be required where the charging equipment utilized is installed and listed for indoor charging of electric vehicles without ventilation.

  SECTION 407—GROUP I-2

  407.1 General. Occupancies in Group I-2 shall comply with the provisions of Sections 407.1 through 407.13 and other applicable provisions of this code.

  407.1.1 Construction. Group I-2 occupancies wherein mental health patients are restrained shall be housed in buildings of Type IA or Type IB construction.

  Exception: Occupancies in Group I-2 wherein mental health patients are restrained are permitted to be housed in one-story build- ings of Type IIA, Type IIIA or Type VA construction provided the floor area does not exceed 5,200 square feet (483 m [2] ) between fire walls of two-hour fire-resistive construction with openings protected by fire assemblies having a 1 [1] / 2 -hour fire protection rating.

  407.2 Corridors continuity and separation. Corridors in occupancies in Group I-2 shall be continuous to the exits and shall be separated from other areas in accordance with Section 407.3 except spaces conforming to Sections 407.2.1 through 407.2.6.

  407.2.1 Waiting and similar areas. Waiting areas and similar public-use areas or group meeting spaces constructed as required for corridors shall be permitted to be open to a corridor, only where all of the following criteria are met:

  1. The spaces are not occupied as care recipient’s sleeping rooms, treatment rooms, incidental uses listed in Table 509, in accordance with Section 509, or hazardous uses.

  2. The open space is protected by an automatic fire detection system installed in accordance with Section 907.

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  SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY AND USE

  3. The corridors onto which the spaces open, in the same smoke compartment, are protected by an automatic smoke detection system installed in accordance with Section 907, and the smoke compartment in which the spaces are located is equipped throughout with quick-response sprinklers in accordance with Section 903.3.2.
  4. The space is arranged so as not to obstruct access to the required exits. 5. Each space is located to permit direct visual supervision by the facility staff.
• CHBC § 1020.2 High relevance — show source text

  [BE] TABLE 1020.2—CORRIDOR FIRE-RESISTANCE RATING	Col2	Col3	Col4
  OCCUPANCY	OCCUPANT LOAD SERVED BY CORRIDOR	REQUIRED FIRE-RESISTANCE RATING (hours)	REQUIRED FIRE-RESISTANCE RATING (hours)
  OCCUPANCY	OCCUPANT LOAD SERVED BY CORRIDOR	Without automatic sprinkler system	With automatic sprinkler system
  H-1, H-2, H-3	All	Not Permitted	1c
  H-4, H-5_, I_	Greater than 30	Not Permitted	1c
  A_e_, B, E, F, M, S, U	Greater than 30	1	0
  R_-1, R-2, R-2.2, R-3d, R-3.1, R-4d_	Greater than 10	Not Permitted	1
  I-2a	Greater than 6	1	1
  I-3,_ R-2.1_	Greater than 6	Not Permitted	1b, c
  I-4	All	1	1
  a. For requirements for occupancies in Group I-2, see Sections 407.2 and 407.3 of the_California Building Code_. b. For a reduction in the fire-resistance rating for occupancies in Group I-3, see Section 408.8 of the_California Building Code_. c. Buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 where allowed. d. Group R-3 and R-4 buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.3. See Section 903.2.8 for occupancies where auto- matic sprinkler systems are permitted in accordance with Section 903.3.1.3. e._ [SFM]_See Section 1030.	a. For requirements for occupancies in Group I-2, see Sections 407.2 and 407.3 of the_California Building Code_. b. For a reduction in the fire-resistance rating for occupancies in Group I-3, see Section 408.8 of the_California Building Code_. c. Buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 where allowed. d. Group R-3 and R-4 buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.3. See Section 903.2.8 for occupancies where auto- matic sprinkler systems are permitted in accordance with Section 903.3.1.3. e._ [SFM]_See Section 1030.	a. For requirements for occupancies in Group I-2, see Sections 407.2 and 407.3 of the_California Building Code_. b. For a reduction in the fire-resistance rating for occupancies in Group I-3, see Section 408.8 of the_California Building Code_. c.

• CHBC § 4005.2.1.1 High relevance — show source text

  4005.2.1.1 Elevated walkways. Where provided, elevated walkways between barrels shall be constructed in accordance with one of the following:

  1. Noncombustible materials that are 50 percent open.
  2. Noncombustible materials that are open less than 50 percent, provided that the walkway has a maximum width of 1 foot (305 mm) and a minimum gap of 3 inches (76 mm) is provided between the walkway and the barrel storage.
  3. Combustible materials that are provided with a row of automatic sprinklers directly beneath each walkway.

  4005.2.2 Flue spaces for on-end wooden barrels. Rack storage arrangements with on-end wooden barrels shall be provided with transverse and longitudinal flue spaces with a minimum width of 6 inches (152 mm).

  4005.2.3 Fire protection for rack storage. Rack storage arrangements of alcohol-water mixtures up to 75 percent alcohol in wooden barrels with sizes not exceeding 130 gallons (492 L) shall be protected in accordance with Sections 4005.2.3.1 through 4005.2.3.6.

  4005.2.3.1 Hose stream allowance. The automatic sprinkler system design shall include a 500-gallon-per-minute (1900 L/min) hose stream allowance.

  4005.2.3.2 Water supply duration. The automatic sprinkler system water supply duration, including hose stream demand, shall be a minimum of 1 hour.

  4005.2.3.3 Dry-pipe automatic sprinkler system. Where dry-pipe automatic sprinkler systems are installed, the automatic sprinkler system shall be designed to deliver water to the most remote four sprinklers within 40 seconds.

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  STORAGE OF DISTILLED SPIRITS AND WINES

  4005.2.3.4 Ceiling automatic sprinkler systems. The automatic sprinkler systems installed at the ceiling shall be designed with a minimum density of 0.2 gallon per minute (0.8 L/min) per square foot with an operating area of 2,000 square feet (186 m [2] ).

  4005.2.3.5 Automatic sprinkler system balancing. The automatic sprinkler system installed at the ceiling and the in-rack sprinkler system shall be balanced at the point of connection.

  4005.2.3.6 Automatic sprinkler system design. The design of the automatic sprinkler system at the ceiling and the in-rack sprinkler system shall be in accordance with Table 4005.2.3.6.

  |TABLE 4005.2.3.6—RACK STORAGE OF DISTILLED SPIRITS IN WOODEN

• CHBC § 903.3.2 High relevance — show source text

  [F] 903.3.2 Quick-response and residential sprinklers. Where automatic sprinkler systems are required by this code, quickresponse or residential automatic sprinklers shall be installed in all of the following areas in accordance with Section 903.3.1 and their listings:

  1. Throughout all spaces within a smoke compartment containing care recipient sleeping units in Group I-2 in accordance with this code.

  2. Reserved.

  3. Throughout all spaces within a smoke compartment containing treatment rooms in ambulatory care facilities.

  4. Dwelling units and sleeping units in Group R occupancies.

  5. Light-hazard occupancies as defined in NFPA 13.

  [F] 903.3.3 Obstructed locations. Automatic sprinklers shall be installed with regard to obstructions that will delay activation or obstruct the water distribution pattern and shall be in accordance with the applicable automatic sprinkler system standard that is being used. Automatic sprinklers shall be installed in or under covered kiosks, displays, booths, concession stands, or equipment that exceeds 4 feet (1219 mm) in width. Not less than a 3-foot (914 mm) clearance shall be maintained between automatic sprinklers and the top of piles of combustible fibers.

  Exception: Kitchen equipment under exhaust hoods protected with a fire-extinguishing system in accordance with Section 904.

  [F] 903.3.4 Actuation. Automatic sprinkler systems shall be automatically actuated unless specifically provided for in this code.

  [F] 903.3.5 Water supplies. Water supplies for automatic sprinkler systems shall comply with this section and the standards referenced in Section 903.3.1. The potable water supply shall be protected against backflow in accordance with the Health and Safety Code Section 13114.7 . For connections to public waterworks systems, the water supply test used for design of fire protection systems shall be adjusted to account for seasonal and daily pressure fluctuations based on information from the water supply authority and as approved by the fire code official.

  [F] 903.3.5.1 Domestic services. Where the domestic service provides the water supply for the automatic sprinkler system, the supply shall be in accordance with this section.

  [F] 903.3.5.2 Residential combination services. A single combination water supply shall be allowed provided that the domestic demand is added to the sprinkler demand as required by NFPA 13R.

  [F] 903.3.6 Hose threads. Fire hose threads and fittings used in connection with automatic sprinkler systems shall be as prescribed by the fire code official.

  [F] 903.3.7 Fire department connections. Fire department connections for automatic sprinkler systems shall be installed in accordance with Section 912.

  [F] 903.3.8 Limited area sprinkler systems. Limited area sprinkler systems shall be in accordance with the standards listed in Section 903.3.1 except as provided in Sections 903.3.8.1 through 903.3.8.5.

  [F] 903.3.8.1 Number of sprinklers. Limited area sprinkler systems shall not exceed six sprinklers in any single fire area.

  [F] 903.3.8.2 Occupancy hazard classification. Only areas classified by NFPA 13 as Light Hazard or Ordinary Hazard Group 1 shall be permitted to be protected by limited area sprinkler systems.