US Energy Products 1000sqft (4ft x 250ft) 1/4 Solid White Foil Heavy Duty Platinum Reflective Foam Core Insulation Vapor Barrier Commercial Residential 4ft x 250ft (1000sqft) Solid White Vinyl Side / Foil Side Super Duty Waterproof / Heavy Duty Scrim Class 1 / Class A Fire Rated / ASTM Certified / Meets all fire Codes Non-toxic, non-carcinogenic, fiber-free, safe to handle and does not require protective clothing or respirators to install. Easy to install and maintenance free, cuts easily with utility knife or scissors and installs easier than fiberglass. Simply staple, nail, glue or use a spray adhesive to hold in place! No mess, and no itchy fibers! Not affected by moisture or humidity. Inhibits condensation and does not promote the growth of fungi, mold or mildew. Does not promote nesting of insects or rodents. Non-flammable, flame retardant Made in USA / SHIPS from USA