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NYC Building Code

§ 909.7.1 — § 909.7.1

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What is NYC BC § 909.7.1?

Quick Answer

This section outlines conditions under which certain airflow methods in smoke control systems are prohibited. It specifies that airflow toward a fire must not exceed 200 feet per minute. Violations of this statute can impact fire safety and evacuation procedures. Applies to building owners implementing smoke control systems.

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

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909.7.1 Prohibited conditions.

BC § 909.7.1

This method shall not be employed where either the quantity of air or the velocity of the airflow will adversely affect other portions of the smoke control system, unduly intensify the fire, disrupt plume dynamics or interfere with exiting. In no case shall airflow toward the fire exceed 200 feet per minute (1.02 m/s). Where the calculated airflow exceeds this limit, the airflow method shall not be used.

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