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NYC Building Code

§ 1507.2.8.1 — § 1507.2.8.1

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What is NYC BC § 1507.2.8.1?

Quick Answer

This section mandates the use of an ice barrier made of two layers of underlayment or a self-adhering polymer modified bitumen sheet on roofs. The barrier must extend from the lowest edges of the roof to at least 24 inches inside the exterior wall line, with an exception for detached accessory structures without conditioned floor area. Applies to building owners and property operators involved in roofing work.

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

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1507.2.8.1 Ice barrier.

BC § 1507.2.8.1

An ice barrier that consists of at least two layers of underlayment cemented together or of a self-adhering polymer modified bitumen sheet shall be used in lieu of normal underlayment and extend from the lowest edges of all roof surfaces to a point at least 24 inches (609.6 mm) inside the exterior wall line of the building. Exception: Detached accessory structures that contain no conditioned floor area.

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