What is the thickness of the fire-rated duct? A fire-rated duct needs to be made with just one pores and skin, getting a complete thickness not exceeding 2mm. This measurement consists of the intumescent coating, which is important for improving fire resistance. Fire-rated ductwork is essential for maximizing the fire https://edgarujxlz.thekatyblog.com/37799101/fire-resisting-ductwork-specialists-an-overview