Significant changes to the 2018 International Mechanical Code
The 2018 Significant Changes guides are available for the International Building, Residential, Fire, Plumbing, Mechanical and Fuel Gas Codes. This valuable series can help any code user save time by zeroing in on the most critical changes in the 2018 International Codes. The Code Council’s technical experts provide summaries, analysis and graphics for these changes making them clear and easy to understand.
2018 International Mechanical Code
An addition to Section 602.2.1.8 (Pipe and Duct Insulation within Plenums) states that a new section specifically addresses duct and pipe insulation in plenums.
Although materials were covered in general in Section 602.2.1, there was no subsection to specifically address duct and pipe insulation installed on the exterior of ducts and pipes located within plenums. It must be verified with the manufacturer of the insulation product whether the insulation complies with the flame spread and smoke development limits of the code.
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