Double Bubble Foil Insulation Reflective Roll-4 x 65 FT (260sqft) Heavy Duty

‌4 X 65 FT (260sqft) Thickness 0.3 inch This can be used in a variety of applications including window insulation, heating and cooling ducts, insulating garage doors or simply as a sun/heat block for your car windshield Usage: roof, wall, floor for building insulation, protective air conditioner, water heater, material for cooler bag, car sunshade, etc. Insulation is made of a single or double layer of industrial grade polyethylene bubbles sandwiched between layers of highly reflective aluminum foil that blocks up to 97 % of radiant heat