Garage Door Insulation Kit Reflective Air Heat And Sound Barrier New. Designed for insulation and sound reduction, this Garage Door Insulation Kit Reflective Air Heat And Sound Barrier New features eight pre-cut panels that are ready to install. Each panel features two layers of sealed air that are laminated between two layers of reflective polyethylene. No special tools are required for installation. → No special tools or protective clothing required for installation and handling → Deflects heat in summer and retains heat like a blanket in winter, saving energy and money → Eco-friendly design is made of 20% recycled material → 1/8 in. thick adhesive fasteners are high-density, open-cell polyurethane foam with long-lasting acrylic adhesive on both sides → Kit meets ASTM standards and complies with building code → Includes eight 24 in. x 48 in. pre-cut panels and 48 adhesive fasteners measuring 1 sq. in. each