Our alternatives include things like Ductslab, Ductwrap and the latest DuctRock system. The latter presents a patented horizontal penetration depth at dry walls, which is exclusive in the marketplace. Selecting the appropriate fire-rated ductwork is tough due to complexity of the duct construction (passing by means of unique fire compartments), https://fireratedductworthinsulat68900.bloggazzo.com/35516657/ductworth-installation-an-overview