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NYC Building Code

§ 417.3 — § 417.3

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What is NYC BC § 417.3?

Quick Answer

This section mandates that when the operating temperature of a dryer reaches 175°F (79°C) or higher, metal enclosures must be insulated from combustible materials. This can be achieved by maintaining a minimum airspace of 12 inches or by lining the metal walls with approved insulation. Applies to building owners managing dryer installations.

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

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417.3 Insulation.

BC § 417.3

Where the operating temperature of the dryer is 175°F (79°C) or more, metal enclosures shall be insulated from adjacent combustible materials by not less than 12 inches (305 mm) of airspace, or the metal walls shall be lined with 1/4-inch (6.4 mm) insulating mill board or other approved equivalent insulation.

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