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NYC Building Code

§ 2304.12.2.5 — § 2304.12.2.5

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What is NYC BC § 2304.12.2.5?

Quick Answer

This section outlines requirements for wood structural members that support moisture-permeable floors or roofs exposed to weather. It mandates the use of naturally durable or preservative-treated wood unless an impervious moisture barrier is present. Applies to building owners constructing or renovating structures with such floors or roofs.

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

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2304.12.2.5 Supporting members for permeable floors and roofs.

BC § 2304.12.2.5

Wood structural members that support moisture-permeable floors or roofs that are exposed to the weather, such as concrete or masonry slabs, shall be of naturally durable or preservative-treated wood unless separated from such floors or roofs by an impervious moisture barrier. The impervious moisture barrier system protecting the structure supporting floors shall provide positive drainage of water that infiltrates the moisture-permeable floor topping.

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