Protection of standpipe system.
NYC Admin. Code § 27-949
in effect§ 27-949 Protection of standpipe system.
(a) All parts of the standpipe systems that may be exposed to frost shall be protected from freezing by any one of the following methods:
(1) The piping shall be frostproofed with insulation having a thermal conductance of 0.1 Btu/hr. per square foot of surface per degree F at a mean temperature of seventy to seventy-five degrees F. Insulation shall be protected to prevent water infiltration, and when exposed to the weather the insulation shall be covered with a forty-five pound roofing felt jacket or equivalent.
(2) Steam or electric tracers may be used in conjunction with the insulation.
(b) Tanks subject to freezing temperatures shall be protected.
Source: City of New York, Charter, Administrative Code and Rules (American Legal Publishing XML export, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/newyorkcity/latest/NYCadmin/0-0-0-53240Fetched: 10/24/2026
