2113.11.2.3 Multiple passageway.
BC § 2113.11.2.3
Masonry chimneys containing more than one passageway shall have the liners separated by a minimum 4-inch-thick (102 mm) concrete or solid masonry wall.
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What is NYC BC § 2113.11.2.3?
Quick Answer
This section mandates that masonry chimneys with multiple passageways must have liners separated by a minimum 4-inch-thick concrete or solid masonry wall. The enforcing agency is the Department of Buildings. Applies to building owners managing chimneys with multiple flues.
General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.
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