... .Light,soft,dustfree,fire-retardant,water proof,easy to install 4.Environmental This is a new environmentally-friendly heat ... insulation material, which is soft, light and easy to install. It is made from aluminum foil and polyethylene by ... , environmentally-friendly; Light, soft, dustfree, fire, retardant, easy to install; Heat reflection, heat insulation, sound insulation, anti- radiation, anti- ...