Exactly what is the thickness of a fire-rated duct? A fire-rated duct must be produced with an individual skin, possessing a total thickness not exceeding 2mm. This measurement includes the intumescent coating, which happens to be important for improving fire resistance. Smoke extraction ducts Primarily built to keep up air https://firesafefireratedductwork46667.ssnblog.com/38090207/indicators-on-fire-rated-insulation-for-ductwork-you-should-know