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NYC Building Code

§ 1609.4 — § 1609.4

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What is NYC BC § 1609.4?

Quick Answer

This section establishes the requirement to determine an exposure category for wind direction based on ground surface irregularities at a construction site. It considers variations in surface roughness due to natural topography, vegetation, and constructed features. Applies to building owners planning new construction projects.

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

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1609.4 Exposure category.

BC § 1609.4

For each wind direction considered, an exposure category that adequately reflects the characteristics of ground surface irregularities shall be determined for the site at which the building or structure is to be constructed. Account shall be taken of variations in ground surface roughness that arise from natural topography and vegetation as well as from constructed features.

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