14 - Laserfiche WebLink

4. If any portion of a basement is located more than 75 feet (22 860 mm) from an approved exit doorway required by code, the basement shall be provided with an approved automatic sprinkler system. 5. All buildings with an occupant load of 30 or more on any level and/or more than 55 feet (16 764 mm) or more above or below the lowest level of fire department vehicle access. 6. When a change in occupancy classification results in an increased fire hazard or risk due to business operations and/or number of occupants permitted in the building. Exception: Utility and miscellaneous buildings, Group U occupancies, that do not exceed 144 square feet fences over 6 feet, water tanks, and retaining walls. 20.08.049 Section 903.3.1.2.2 Added- NFPA 13R sprinkler systems Section 903.1 Amended-NFPA 13R sprinkler systems of the California Building Standards Code 2007 Edition, (24 C.C.R.), and including by reference the International Building Code, 2006 Edition, Volumes 1 and 2 is added to read as follows: Section 903.3.1.2.2 Requirements for a single family dwelling (Group R -Division 3) more than 12,000 square feet. 1. The hydraulically most remote 12 sprinklers shall be calculated for each area. When a common sprinkler and domestic water supply is provided, the fire sprinkler demand shall include the simultaneous domestic flow of 5 gallons per minute per unit. The domestic flow shall be added at the base of the riser. 2. Sprinklers shall be located in residential areas per NFPA 13D. The flow rate, k factor, and temperature rating for each sprinkler shall be per the sprinklers manufacturers listing for the area covered. 3. Sprinklers shall be provided in the attic. Sprinklers shall be spaced a maximum 130 square feet per sprinkler and over all furnaces, water heaters, etc. All attic areas shall be covered (some buildings have several attic areas). Attic sprinklers shall be 200° - 212° degree F, quick response or standard response, 7/16" orifice (K=4.0 to 4.5). Sprinkler density to be .10 gallons per minute per square foot. 4. Sprinklers shall be provided between floors where floor ceiling assemblies consist of open web joists or trusses. Sprinklers shall be spaced a maximum of 168 square feet per sprinkler. Sprinklers shall be 200° - 212° degree F, quick response or standard response, 7/16" orifice (K=4.0 to 4.5). Fire sprinkler density shall be .10 gallons per minute per square foot. 5. Sprinklers shall be provided in the garage. Sprinklers in garages shall be 200° degree F, quick response type, 7/16" orifice (K = 4.0 to 4.5) with a maximum spacing of 130 square feet per sprinkler. Fire sprinkler density to be .15 gallons per minute per square foot. 49