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The number of design sprinklers shall be the hydraulically most remote six (6) sprinklers above or below the ceiling. When a common fire sprinkler and domestic water supply is provided, the fire sprinkler calculation shall include the simultaneous domestic flow of five (5) gallons per minute per dwelling unit. This domestic flow shall be calculated at the base of the riser. Exception: This standard does not include hotels, motels, or day care centers with more than twelve (12) occupants. (c) Sprinklers shall be provided in attics and between floors where floor/ceiling assemblies consist of open web wood joists or trusses. Exception: Townhouses with approved one-hour separations at the property line shall have pilot sprinklers per (a) above. CHAPTER 4-System Design -amended Section 4-1.3- Water Demand is amended to read: (a.) One (1) to four (4) dwelling units. The water demand for the system shall be determined by multiplying the design area of the largest compartment by the specified application rate. Additional demand is required for domestic use as specified in Section 4-1.2.1 (above). CHAPTER 4-System Design -amended Section 4-2.6 is added to read: (a) Pilot fire sprinkler protection and fire detection shall be provided in all attic spaces. Pilot fire sprinkler locations shall be near heat or fire sources, i.e., HVAC equipment, water heaters, kitchen duct/exhaust penetrations, or other electrical or gas fired equipment, etc. (b) Pilot fire sprinkler sprig ups or risers shall be braced in accordance with pipe manufacturers' recommendations for vertical support and within 4 to 6 inches of the fire sprinkler when the vertical riser exceeds 30 inches vertically. Chapter 4-System Design -amended Section 4-6 Location of Sprinklers is amended to read: Sprinklers shall be installed in all areas. Exception #1: Sprinklers may be omitted from bathrooms not exceeding 55 square feet (5.1 m) with non-combustible fixtures. 45