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// CODE SNIPPET

409.0 Ducts

California Mechanical Code 2016 > 4 Ventilation Air > 409.0 Ducts
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[OSHPD 1, 2, 3 & 4]

409.1

Ducts which penetrate construction, intended for X-ray or other radiation protection, shall not impair the effectiveness of the protection.

409.2

Duct linings and their use shall meet the requirements of Chapter 6, California Mechanical Code.

409.3 Insulation of Ducts

Cold air ducts shall be insulated wherever necessary or to prevent condensation.

409.4

The anchorage and supporting structural elements for airducts shall be designed to withstand the lateral forces as required by the California Building Code, Title 24, Part 2.
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