Item Description: Item Description: This Kit Includes: 48inch x 48inch Supershield White/Foil 1/4 Solid reflective foam core insulation 16feet of Military Grade Hook and Loop Tape Benefits Reduce Energy Bills Saves Time and Money Non-toxic, no fiberglass - no itching Installs easily with razor knife Class A/Class 1 Fire Rating Superior thermal performance Improves insulation systems performance Insect/bird resistant Can be used with mass insulation's Certified ASTM testing Product: Foam Core laminated between two layers of highly reflective radiant barrier foil. Contact Temperature Range: -60°F To 180°F (-51°C To 82°C) Water Vapor Transmission:.02 Perms**** Puncture Resistance: 60 Lbs. Per In.*** Pliability: No Cracking Linear Shrinkage: None Mold And Mildew: No Growth Flame Spread: 0 Astm E84-08 Smoke Development: 40 Astm E84-08 Fire Rating: Class A / Class 1 Reflectivity: 95% Motor Vehicle Safety Standard 302: Zero Surface Burn Rate Emittance: 0.04**** Benefits: • Only Energy Star Rated Foam Core Reflective Insulation on the planet!!! • Blocks radiant heat by up to 95% • Reduces Heating and cooling loss • Foam Core Sound Reduction Technology • Saves you Energy and Money • Easy to use and install • Requires no protective clothing or special tools • Requires no maintenance • Highly Durable, Lasts Longer • Meets new ASTM Fire codes Insulation Cover for Attic Ceiling Fan Vent Window Shutter Cover fits (4ftx4ft)