Exactly 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 contains the intumescent coating, that is important for improving fire resistance. Fire penetration products can stop flames and smoke https://andresqgvjy.ourcodeblog.com/39730131/the-basic-principles-of-fire-rated-insulation-for-ductwork