SmartSHIELD -5mm 48''X50ft Reflective Insulation Roll, Foam Core Radiant Barrier, Heat-Cold Shield, Thermal Foil Insulation - Pure Aluminum

HIGHLY EFFICIENT - Reflects 97% of radiant energy, an ideal RADIANT BARRIER. R-value up to 15.67 (with one layer), up to 21.10 (with two layers). VAPOR BARRIER - inhibits condensation, unaffected by humidity and moisture. SOUND BARRIER - superior sound dampening material. PREMIUM QUALITY - 5 mm closed cell polyethylene FOAM (not an inexpensive bubble wrap) laminated with PURE ALUMINUM on both sides. Simple to install, easy to cut. Robust yet lightweight. FIRE RATING - Fire rating Class 1 / Class A, NON TOXIC - will not cause irritation to skin, eyes, or throat. Hypoallergenic