... Friendly heat insulation material. Made from aluminum foil and polyethy Heat insulation roof tileAluminum foil /fire retardant ... bubble/Aluminum foilFeatures:NO Odor and toxicity, environmentally-friendly .Light, soft, dust free, ... ,heat insulation, sound insulation, anti-radiation, anti-vibration, and shielding.Usage:Roof, wall, floor.Shells of air conditioner ...