rFOIL Reflective Insulation is a double layer of polyethylene bubbles sandwiched between a highly reflective metalized film surface and a white polyethylene sheet. This product has been specifically designed for insulating commercial and residential building assemblies, reducing the amount of radiant heat transfer. Adding rFOIL® Reflective Bubble Insulation to your construction project improves the insulation value of the building envelope and significantly increases it’s energy efficiency. All products in this line are classified as Class 1 / Class A in accordance with the ASTM-E84 fire test standard. The product was mounted in accordance to ASTM-E2599.