1 Roll 3.5mm-50x300cm Double-Sided Reflective Aluminum

Reduce heat transfer and improve energy efficiency with this double-sided reflective aluminum foil insulation roll. The flexible50 × 300 cm (19.7 × 118.1 in) roll is easy to cut and install, making it ideal for windows, RVs, garage doors, roofs, pipes, and other...

Reflectix BP48010 Double Pack Insulation 48 in. x 10 ft

It is used extensively in both specialty and standard construction projects. Two outer layers of aluminum foil reflect 97-Percent of radiant heat. Each layer of foil is bonded to a tough layer of polyethylene for strength.