→ Double Sided Foil Reflective Foam Insulation Roll → Good light reflectivity, flexible easy to install. → Roll size: 4ft length x 4ft width x 1/8" thickness. → Best quality product → Perfect for growbox or growroom insulation. Aluflex reflective insulation - Combines the benefits of insulation with vapor, radiant barrier protection and perfect noise protection. All in one product. Youll have a cool, dry structure in the summer and a warm, dry structure in the winter. Uses: pole barn insulation, metal building insulation, attic insulation, garage insulation, roof insulation, basement insulation, crawlspace insulation, radiant floor insulation, wall insulation and air duct insulation, ect. Insulation works well in hot and cold climates. Other benefits include sound deadening and easy installation. → Polyethylene foam core is much better material than bubble wrap. → Product is non toxic and doesn’t harm environment. → To improve performance, tape seams with reflective tape. Heat and cold will seek the least resistance and find it at the seams. Taping the seams also helps to prevent condensation.