// CODE SNIPPET
C403.2.9.3.1 Mechanical Fastening
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All joints between sections of air ducts and plenums, between intermediate and terminal fittings and other components of air distribution systems, and between sub sections of these components shall be mechanically fastened to secure the sections independently of the closure system(s).
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2017 FBC - Energy Conservation, 6th edition > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.2 Provisions Applicable to All Mechanical Systems (Mandatory) > C403.2.9 Duct and Plenum Insulation, Construction and Sealing (Mandatory) > C403.2.9.3 Sealing, General (Mandatory) > C403.2.9.3.1 Mechanical Fastening