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What is NYC BC § 2113.20?

Quick Answer

This section mandates that all spaces between chimneys and floors or ceilings must be fireblocked using noncombustible materials. The fireblocking must be securely fastened and, in cases involving wood joists or beams, must be self-supporting or supported by metal strips. Applies to building owners with chimneys in their properties.

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

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2113.20 Chimney fireblocking.

BC § 2113.20

All spaces between chimneys and floors and ceilings through which chimneys pass shall be fireblocked with noncombustible material securely fastened in place. The fireblocking of spaces between wood joists, beams or headers shall be self-supporting or be placed on strips of metal or metal lath laid across the spaces between combustible material and the chimney.

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