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NYC Building Code

§ 720.3 — § 720.3

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What is NYC BC § 720.3?

Quick Answer

This section establishes requirements for insulation materials installed in buildings, specifying that they must have a flame spread index of no more than 25 and a smoke-development index of no more than 50. An exception is provided for certain cellulosic fiber loose-fill insulation. Applies to building owners involved in construction and renovation projects.

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

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720.3 Exposed installation.

BC § 720.3

Insulation materials, where exposed as installed in buildings of any type of construction, shall have a flame spread index of not more than 25 and a smoke-development index of not more than 50. Exception: Cellulosic fiber loose-fill insulation complying with the requirements of Section 720.6 shall not be required to meet a flame spread index requirement but shall be required to meet a smoke-development index of not more than 50 when tested in accordance with CAN/ULC S102.2.

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