13 & 14 Building Code Updates (2)

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1. The attic sprinklers are supplied by a separate floor control valve assembly to allow ease of draining the attic system without impairing sprinklers throughout the rest of the building, and 2. Adequate heat shall be provided for freeze protection as per the applicable referenced NFPA standard. and 3. The attic space is a part of the building's thermal, or heat, envelope, such that insulation is provided at the roof deck, rather than at the ceiling level. Add Section 903.3.1.4.2, Heat trace/insulation, to read as follows: 903.3.1.4.2 Heat trace/insulation. Heat trace /insulation shall only be allowed where approved by the fire code official for small sections of large diameter water -filled pipe. Amend Section 903.3.5, Water supplies, by adding a second paragraph to read as follows: 903.3.5. Water supplies. [Existing text unchanged.] Water supply as required for such systems shall be provided in conformance with the supply requirements of the respective standards: however, every water-based fire protection system shall be designed with a 10 -psi safety factor. Reference Section 507.4 for additional design requirements. Amend Section 903.4, Sprinkler system supervision and alarms, by adding a second paragraph after the Exceptions to read as follows: 903.4 Sprinkler system supervision and alarms. [Existing text unchanged.] Exceptions: [Existing Exceptions unchanged.] Sprinkler and standpipe system water -flow detectors shall be provided for each floor tap to the sprinkler system and shall cause an alarm upon detection of water flow for more than 45 seconds. All control valves in the sprinkler and standpipe systems except for fire department hose connection valves shall be electrically supervised to initiate a supervisory signal at the central station upon tampering, Amend Section 903.4.2, Alarms, b ay dding second paragraph to read as follows: 903.4.2 Alarms. [Existing text unchanged.] 14