K's Novelties Residential Fan Shutter Cover Attic Exhaust Vent Stop Leak Sealer Door Insulation Kit

Made in the USA 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****