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NYC Building Code

§ 2109.5.1 — § 2109.5.1

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What is NYC BC § 2109.5.1?

Quick Answer

This section establishes the minimum thickness for horizontal joints in construction, specifying a requirement of 1/4 inch (6.4 mm) and detailing the materials to be used for joint filling. Applies to building owners involved in construction and renovation projects.

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

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2109.5.1 Joint minimum thickness.

BC § 2109.5.1

Unless substantiated as indicated by 2109.5.2, horizontal joints shall be 1/4 inch (6.4 mm) minimum thickness, with neoprene, polyethylene, or urethane gasket or equivalent joint filler filling the entire joint, except for a recess from the toe of the lintel angle to the exterior of the facing brick, to provide space for caulking. These joints shall be placed at each floor.

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