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20.24.140 CFC Section 903.3.1.2 added -NFPA 13R sprinkler systems. <br />CFC Section 903.3.1.2 is added. <br />Section 903.3.1.2 <br />Requirements for 4 to 15 dwelling units up to 12,000 square feet. <br />1. The hydraulically most remote six (6) sprinklers shall be calculated for each area. <br />When a common sprinkler and domestic water supply is provided, the fire sprinkler <br />demand shall include the simultaneous domestic flow of 5 gallons per minute per unit. <br />The domestic flow shall be added at the base of the riser. <br />2. Sprinklers shall be located in residential areas per NFPA 13D. The flow rate, k <br />factor, and temperature rating for each sprinkler shall be per the sprinklers <br />manufacturers listing for the area covered. <br />3. Sprinklers shall be provided in the attic. Fire sprinklers shall be spaced a maximum <br />130 square feet per sprinkler and over all furnaces, water heaters, etc. All attic areas <br />shall be covered (some buildings have several attic areas). Attic sprinklers shall be <br />200° - 212° (degree) F, quick response or standard response, 7/16" orifice (K=4.0 to <br />4.5). Sprinkler density to be .10 gallons per minute per square foot. <br />4. Sprinklers shall be provided between floors where floor ceiling assemblies consist of <br />open web joists or trusses. Sprinklers shall be spaced a maximum of 168 square feet <br />per sprinkler. Sprinklers shall be 200° - 212° (degree) F, quick response or standard <br />response, 7/16" orifice (K=4.0 to 4.5). Fire sprinkler density shall be .10 gallons per <br />minute per square foot. <br />5. Sprinklers shall be provided in the garage. Sprinklers in garages shall be 200° <br />degree F, quick response type, 7/16" orifice (K = 4.0 to 4.5) with a maximum spacing of <br />130 square feet per sprinkler. Fire sprinkler density to be .15 gallons per minute per <br />square foot. <br />6. Pipe type. UL approved plastic pipe shall be protected per the listing except that <br />pipe in the concealed spaces between floors may be exposed within the space. Attic <br />pipe shall be steel. <br />7. This guideline does not apply to motels, hotels, or day care centers with more than <br />12 occupants or other multi-family residential occupancies that have more than 15 units <br />and/or exceed 12,000 sq. feet. These types of buildings shall be designed per NFPA <br />13. <br />20.24.150 CFC Section 903.3.1.2A added -NFPA 13R sprinkler systems. <br />CFC Section 903.3.1.2A is added. <br />Section 903.3.1.2A <br />Requirements for a single family dwelling (Group R -Division 3) more than 12,000 <br />square feet. <br />1. The hydraulically most remote 12 sprinklers shall be calculated for each area. When <br />a common sprinkler and domestic water supply is provided, the fire sprinkler demand <br />86 <br />