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NYC Building Code

§ 402.6.4.5 — § 402.6.4.5

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What is NYC BC § 402.6.4.5?

Quick Answer

This section outlines the requirements for foam plastics used in signs, specifying that they must have flame-retardant characteristics with a maximum heat-release rate of 150 kilowatts when tested according to UL 1975 or NFPA 289. Applies to building owners utilizing foam plastics in signage.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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402.6.4.5 Foam plastics.

BC § 402.6.4.5

Foam plastics used in signs shall have flame-retardant characteristics such that the sign has a maximum heat-release rate of 150 kilowatts when tested in accordance with UL 1975 or when tested in accordance with NFPA 289 using the 20 kW ignition source, and the foam plastics shall have the physical characteristics specified in this section. Foam plastics used in signs installed in accordance with Section 402.6.4 shall not be required to comply with the flame spread and smoke-developed indices specified in Section 2603.3.

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