Features & Details Excellent Insulation Performance: Crafted from double reflective aluminum foil and PE air bubble film, our 3.2 mm thick double reflective insulation roll efficiently reflects sunlight and blocks heat transfer in summer, while preventing indoor heating loss in winter. Stay cool in summer, keep warm in winter! Reflects Over 95% of Heat: Featuring high-density aluminum foil coating with outstanding heat reflectivity, this double reflective aluminum foil bubble film insulation roll efficiently reflects more than 95% of solar heat. Experience rapid heat dissipation, keeping your space cool and comfortable during hot days. Premium Material: Our 10 ft x 48 in double reflective heat radiant barrier utilizes PE air bubble film as a central layer, providing effective thermal insulation. Excellent radiant barrier helps to maintain stable indoor temperatures by preventing heat transfer, keeping you cool in summer and warm in winter. Easy Installation: This double-sided aluminum foil insulation roll is easy to cut and install. It is convenient to DIY the roll size and shape to meet your different needs. When not in use, it can be easily folded up for space-saving and convenient carrying. Versatile Applications: Our thermal insulation heat shield is tear and puncture-resistant, scratch and wear-resistant, strong and lightweight. It's perfect for windows, garage doors, RVs, houses, roofs, etc, offering effective heat blocking and insulation wherever needed.