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BC 413 — Combustible Storage

New York City Administrative Code (current through L.L. 2026/147, enacted September 12, 2026, and amendments effective through October 10, 2026) · NYC Building Code § BC 413

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Section BC 413: Combustible Storage

413.1 General. Storage of combustible materials in attics, under-floor spaces, concealed spaces, and below-grade storage rooms shall comply with this section. 413.2 Attic, under-floor and concealed spaces. Attic, under-floor and concealed spaces used for storage of combustible materials shall be protected on the storage side as required for 1-hour fire-resistance-rated construction. Openings shall be protected by assemblies that are self-closing and are of noncombustible construction or solid wood core not less than 1 3/4 inch (45 mm) in thickness. Exception: Neither fire-resistance-rated construction nor opening protectives are required in any of the following locations: 1. Areas protected by approved automatic sprinkler systems. 2. Group R-3 and U occupancies. 413.3 High-piled stock or rack storage. High-piled stock or rack storage in any occupancy group shall comply with the New York City Fire Code, including the requirement for permit approval.