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NYC Building Code

§ 2111.4.1 — § 2111.4.1

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What is NYC BC § 2111.4.1?

Quick Answer

This section outlines the requirements for vertical reinforcing in fireplaces based on chimney width. It specifies the number of vertical bars needed for chimneys up to and exceeding 40 inches, along with anchoring and grouting standards. Applies to building owners involved in construction or renovation of fireplaces.

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

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2111.4.1 Vertical reinforcing.

BC § 2111.4.1

For fireplaces with chimneys up to 40 inches (1016 mm) wide, four No. 4 continuous vertical bars, anchored in the foundation, shall be placed in the concrete between wythes of solid masonry or within the cells of hollow unit masonry and grouted in accordance with Section 2103.3. For fireplaces with chimneys greater than 40 inches (1016 mm) wide, two additional No. 4 vertical bars shall be provided for each additional 40 inches (1016 mm) in width or fraction thereof.

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