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NYC Building Code

§ 705.5 — § 705.5

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What is NYC BC § 705.5?

Quick Answer

This section establishes the fire-resistance ratings for exterior walls based on their fire separation distance. Walls with a distance greater than 10 feet require ratings for fire exposure from the inside, while those with a distance of 10 feet or less must be rated for exposure from both sides. Applies to building owners responsible for exterior wall compliance.

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

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705.5 Fire-resistance ratings.

BC § 705.5

Exterior walls shall be fire-resistance-rated in accordance with Tables 601 and 602 and Appendix D where applicable. The required fire-resistance rating of exterior walls with a fire separation distance of greater than 10 feet (3048 mm) shall be rated for exposure to fire from the inside. The required fire-resistance rating of exterior walls with a fire separation distance of less than or equal to 10 feet (3048 mm) shall be rated for exposure to fire from both sides.

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