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NYC Building Code

§ 1203.5.1.1 — § 1203.5.1.1

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What is NYC BC § 1203.5.1.1?

Quick Answer

This section outlines the requirements for natural ventilation in occupiable spaces where mechanical ventilation is not mandated by the New York City Mechanical Code. It specifies that openings such as windows, doors, and skylights must be used for ventilation. Applies to building owners of occupiable spaces without mechanical ventilation.

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

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1203.5.1.1 Occupiable spaces.

BC § 1203.5.1.1

Where occupiable spaces are not required to be provided with mechanical ventilation in accordance with the New York City Mechanical Code, natural ventilation shall be provided in accordance with Section 1203.5.1.1. Openings providing required natural ventilation to occupiable spaces shall be windows, doors, louvers, skylights or other similar ventilating openings. Exceptions: 1. Bathrooms and toilet rooms in Group R or I-1 occupancies shall comply with Section 1203.5.1.3.

2.Kitchenettes in Group R or I-1 occupancies shall comply with Section 1203.5.1.4.

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