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NYC Building Code

§ 2510.6 — § 2510.6

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What is NYC BC § 2510.6?

Quick Answer

This section outlines the requirements for installing water-resistive barriers over wood-based sheathing, mandating performance standards equivalent to two layers of specific barriers. It details installation methods to ensure effective drainage of water. 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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2510.6 Weather-resistive barriers.

BC § 2510.6

Water-resistive barriers shall be installed as required in Section 1404.2 and, where applied over wood-based sheathing, shall include a water-resistive barrier with a performance at least equivalent to two layers of water-resistive barrier complying with ASTM E 2556, Type I. The individual layers shall be installed independently such that each layer provides a separate continuous plane and any flashing (installed in accordance with Section 1405.4), has a means for draining water that enters the assembly to the exterior. Exception: Where the water-resistive barrier that is applied over wood-based sheathing has a water resistance equal to or greater than that of a water-resistive barrier complying with ASTM E 2556, Type II and is separated from the stucco by an intervening, substantially nonwater-absorbing layer or drainage space.

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