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NYC Building Code

§ 808.1.1.1 — § 808.1.1.1

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What is NYC BC § 808.1.1.1?

Quick Answer

This section outlines the requirements for suspended acoustical ceilings in buildings, specifying the materials and dimensions for supporting hangers and channels. It prohibits the use of wire hangers and direct hung suspension systems, with an exception for certain occupancy groups. Applies to building owners installing acoustical ceilings.

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

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808.1.1.1 Suspended acoustical ceilings.

BC § 808.1.1.1

Acoustical ceilings that are to be suspended below floor or roof construction by means of a framing system shall consist of supporting hangers of minimum 1/4-inch diameter (6.4 mm) steel rods, carrying channels of minimum 1 1/2-inch deep (38.1 mm) cold-rolled steel weighing 0.440 pounds per linear foot (0.681 kg/m), and a supporting grid complying with Appendix R. Use of wire hangers shall not be permitted. Direct hung suspension systems shall not be permitted. Exception: Acoustical ceiling systems in Groups R-2 and R-3 occupancies shall be permitted to be installed in accordance with ASTM C 635 and ASTM C 636 without modifications.

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