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NYC Building Code

§ 718.3.3 — § 718.3.3

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What is NYC BC § 718.3.3?

Quick Answer

This section outlines requirements for draftstopping in non-Group R occupancies, specifying that horizontal floor areas should not exceed 3,000 square feet unless exceptions apply. The statute provides conditions under which draftstopping is not necessary, such as in buildings with automatic sprinkler systems or where structural members are fully protected. Applies to building owners managing non-residential properties.

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

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718.3.3 Other groups.

BC § 718.3.3

In occupancies other than Group R, draftstopping shall be installed so that horizontal floor areas do not exceed 3,000 square feet (278.7 m 2 ). Exceptions: 1. Draftstopping is not required in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.

2.Draftstopping shall not be required where the structural members within the concealed ceiling space are individually protected on all sides for their full length with materials having the required fire-resistance rating.

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