Fiberglass Duct Wrap is a thermal and acoustical insulation blanket for use as an external insulation on commercial or residential heating or air conditioning ducts. Suitable for the exterior of rectangular or round sheet metal ducts and spaces and surfaces where temperature and condensation must be controlled. Ideal for cooling, heating or dual temperature service ducts.
Duct Wrap is 1-1/2" thick fiberglass blanket with FSK (Re-inforced Foil, aka FRK) laminate facing. It has a 3/4# density and an out of package R-Value of 5.1