P2904.3 Sprinkler Piping System
Sprinkler piping shall be supported in accordance with requirements for cold water distribution piping. Sprinkler piping shall comply with the requirements for cold water distribution piping. For multipurpose piping systems, the sprinkler piping shall connect to and be a part of the cold water distribution piping system.
Exception: For plastic piping, it shall be permissible to follow the manufacturer's installation instructions.
Nonmetallic pipe and tubing systems shall be protected from exposure to the living space by a layer of not less than 3/8-inch-thick (9.5 mm) gypsum wallboard, 1/2-inch-thick (13 mm) plywood, or other material having a 15-minute fire rating.
- Pipe protection shall not be required in areas that do not require protection with sprinklers as specified in Section P2904.1.1.
- Pipe protection shall not be required where exposed piping is permitted by the pipe listing.