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NYC Building Code

§ 2303.1.7 — § 2303.1.7

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What is NYC BC § 2303.1.7?

Quick Answer

This section establishes requirements for hardboard siding used structurally, including identification by an approved agency and compliance with specific strength and thickness standards. It also outlines installation guidelines according to the manufacturer's recommendations. Applies to building owners using hardboard materials in construction.

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

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2303.1.7 Hardboard.

BC § 2303.1.7

Hardboard siding used structurally shall be identified by an approved agency conforming to CPA/ANSI A135.6. Hardboard underlayment shall meet the strength requirements of 7/32-inch (5.6 mm) or 1/4-inch (6.4 mm) service class hardboard planed or sanded on one side to a uniform thickness of not less than 0.200 inch (5.1 mm). Prefinished hardboard paneling shall meet the requirements of CPA/ANSI A 135.5. Other basic hardboard products shall meet the requirements of CPA/ANSI A135.4. Hardboard products shall be installed in accordance with manufacturer's recommendations.

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