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NYC Building Code

§ 2603.5.3 — § 2603.5.3

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What is NYC BC § 2603.5.3?

Quick Answer

This section establishes limits on the potential heat of foam plastic insulation in wall assemblies, requiring testing in accordance with NFPA 259. The results must be expressed in Btu per square foot. Applies to building owners utilizing foam plastic insulation in their structures.

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

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2603.5.3 Potential heat.

BC § 2603.5.3

The potential heat of foam plastic insulation in any portion of the wall or panel shall not exceed the potential heat expressed in Btu per square foot (mJ/m 2 ) of the foam plastic insulation contained in the wall assembly tested in accordance with Section 2603.5.5. The potential heat of the foam plastic insulation shall be determined by tests conducted in accordance with NFPA 259 and the results shall be expressed in Btu per square foot (mJ/m 2 ). Exception: One-story buildings complying with Section 2603.4.1.4.

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