500 sqft (4ft x 125ft) of NASA TECH Commercial Grade Perforated No Tear Green Energy Radiant Barrier Reflective Insulation Attic Foil Roof Attic House Wrap SCIF RIFD Perforated No Tear Commercial / Industrial Grade 500sqft (4ft x 125ft) Perforated Breatheable Radiant Barrier HIGHLY REFLECTIVE: Double-sided and tear-resistant, our foils material is highly reflective to reflect radiant heat rather than absorb it. The industrialized strength foil is remarkably thin to the touch. It is designed to withstand heavy handling without tearing, puncturing, or overly wrinkling. Cuts easily with utility scissors so you can install it properly with ease with no special tools or protective equipment required. ASTM COMPLIANT: Meets the American Society for Testing and Materials (ASTM) fire and smoke safety requirements of most state and local building codes, as well as the breathability standards for building materials. While primarily used for attic rafters and floors, our radiant foil works well for garages, workshops, storage units, barns, warehouses, and even older multi-storied homes that lack sufficient insulation. 90-DAY 100% MONEY BACK GUARANTEE. We offer a No Hassle 120-Day 100% Money Back Guarantee. If, within the four months, you are not completely satisfied with your purchase for any reason, just let us know and we will refund you all your money.