What is the thickness of the fire-rated duct? A fire-rated duct ought to be built with a single pores and skin, getting a complete thickness not exceeding 2mm. This measurement consists of the intumescent coating, which is important for improving fire resistance. In accordance with the Environment Health and fitness https://fire-rated-insulation-for68890.bloguetechno.com/fascination-about-fire-resistant-ductwork-installers-75540415