First layer is aluminum foilsecond layer is flame-retardant adhesive, the third layer is fiberglass cloth.foil insulation

Name DFC- 1001A Size Width: ≤1300mm;Length: ≤200m Lead Time 30 Days/20'FCL Package Each roll is wrapped with kraft carboard,then put into container Double Sided Aluminium Foil Vapor Barrier consists of two layers of Aluminium Foil,one layer of high strength Kraft and one layer of fiberglass reinforcement,suitable for roof and wall insulation of house,warehouse,cold storage,factory. This kind of facing material is an ideal barrier for roofing cavity.It can reflect up to 95% of radiant heat entering . It also acts as vapor barrier keeping your cavity from condensation and corrosion .

foil insulation