What is the thickness of a fire-rated duct? A fire-rated duct need to be produced with one skin, having a full thickness not exceeding 2mm. This measurement features the intumescent coating, and that is essential for maximizing fire resistance. According to the Planet Well being Organisation (WHO), all around a https://angelomdtix.blogripley.com/40122659/what-does-firesafe-fire-rated-ductwork-mean