Exactly what is the thickness of the fire-rated duct? A fire-rated duct should be constructed with only one pores and skin, possessing a total thickness not exceeding 2mm. This measurement features the intumescent coating, and that is important for enhancing fire resistance. Fire-rated ductwork is very important for improving the https://fire-resistant-ductwork-m90011.thenerdsblog.com/44804469/a-review-of-fire-resisting-ductwork-specialists