NON TOXIC - will not irritate skin, eye or throat., Non allergic. Crafted with a robust foam core and engineered foil, this insulation roll ensures long-lasting performance, resisting moisture and wear, thus offering... VAPOR BARRIER - prevent condensation, unaffected by humidity and moisture. SmartSHIELD Foam Core Insulation Roll R-8 SmartSHIELD 5mm Roll - 24x25ft, R-8, Pure Aluminum Foam Core Reflective Insulation 1.5mm Closed Cell Polyethylene Foam 18/mo - Finance SmartSHIELD -5mm 36"x50ft Reflective Foam Core Insulation Roll, Cold And Heat Shield, Radiant Barrier, Thermal Insulation - Engineered FOIL/White Film | Buy Now, Pay Later Closed Cell Polyethylene Radiant Barrier Easy to install, easy to cut, strong but lightweight. INSULATION MARKETPLACE. SmartSHIELD -3mm 48 Inchx50Ft Reflective Insulation roll, Foam Core Radiant Barrier, Thermal Insulation Shield - Engineered Foil Save big on your utility bill., SUPREME QUALITY - 1., 5mm closed cell polyethylene FOAM (not a cheap bubbles) sandwiched between highly reflective Engineered Foil on both sides. SAVE MONEY- effectively low the amount of heat transferred into the home in the summer an out of the home in the winter.