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NYC Building Code

§ 1409.9 — § 1409.9

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What is NYC BC § 1409.9?

Quick Answer

This section establishes the surface-burning characteristics for HPL, requiring a flame spread index of no more than 25 and a smoke-developed index of no more than 450 when tested according to ASTM E 84 or UL 723. Applies to building materials used in construction.

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

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1409.9 Surface-burning characteristics.

BC § 1409.9

HPL shall have a flame spread index of not more than 25 and a smoke-developed index of not more than 450 when tested in the minimum and maximum thicknesses intended for use in accordance with ASTM E 84 or UL 723.

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