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NYC Building Code

§ 707.9 — § 707.9

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What is NYC BC § 707.9?

Quick Answer

This section mandates that voids at the intersection of a fire barrier and nonfire-resistance-rated assemblies must be filled using approved materials. The installation must ensure that the filling remains secure to accommodate building movements and to prevent the spread of fire and hot gases. Applies to building owners responsible for fire safety compliance.

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

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707.9 Voids at intersections.

BC § 707.9

The voids created at the intersection of a fire barrier and a nonfire-resistance-rated roof assembly or a nonfire-resistance-rated exterior wall assembly shall be filled. An approved material or system, or a material consistent with the construction requirements of the fire barrier, shall be used to fill the void, and shall be securely installed in or on the intersection for its entire length so as not to dislodge, loosen or otherwise impair its ability to accommodate expected building movements and to retard the passage of fire and hot gases.

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