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NYC Building Code

§ 403.3.1 — § 403.3.1

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What is NYC BC § 403.3.1?

Quick Answer

This section outlines the requirements for sprinkler system design in buildings exceeding 300 feet in height. It mandates that each sprinkler system zone be supplied by at least two risers, with specific guidelines on how sprinklers on different floors are to be supplied. Applies to building owners of high-rise structures.

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

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403.3.1 Number of sprinkler risers and system design.

BC § 403.3.1

Each sprinkler system zone in buildings that are more than 300 feet (91 440 mm) in building height shall be supplied by no fewer than two risers. Each riser shall supply sprinklers on alternate floors. If more than two risers are provided for a zone, sprinklers on adjacent floors shall not be supplied from the same riser.

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