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NYC Building Code

§ 2111.6 — § 2111.6

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What is NYC BC § 2111.6?

Quick Answer

This section outlines the construction requirements for masonry fireboxes, specifying materials, thicknesses, and standards for firebrick and mortar. The statute mandates that fireboxes be built to withstand high temperatures, ensuring safety and compliance. Applies to building owners involved in the construction or renovation of fireboxes.

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

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2111.6 Firebox walls.

BC § 2111.6

Masonry fireboxes shall be constructed of solid masonry units, hollow masonry units grouted solid, or stone. When a lining of firebrick at least 2 inches (51 mm) in thickness or other approved lining is provided, the minimum thickness of back and sidewalls shall each be 8 inches (203 mm) of solid masonry, including the lining. The approved lining shall be able to withstand a temperature of 2,000°F (1093°C) without cracking. The width of joints between firebricks shall be not greater than 1/4 inch (6.4 mm). When no lining is provided, the total minimum thickness of back and sidewalls shall be 12 inches (305 mm) of solid masonry. Firebrick shall conform to ASTM C 27 or ASTM C 1261 and shall be laid with medium-duty refractory mortar conforming to ASTM C 199.

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