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What is NYC MC § 704.1.4?

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This section outlines the calculation of the ratio of vertical openings connected to the outdoors through vertical ducts. The ratio is determined by the net free areas of the openings divided by the required areas as specified in Section 703.1.4. Applies to building owners managing vertical openings in structures.

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

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704.1.4 Ratio of vertical openings.

MC § 704.1.4

Where openings connected to the outdoors through vertical ducts are provided in accordance with Section 703.1, the ratio of vertical openings shall be the sum of the net free areas of both such openings, divided by the sum of the required areas for both such openings as determined in accordance with Section 703.1.4.

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