SmartSHIELD -20mm 48" X25ft Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Foil Insulation Panel - 0.8 Inch Thickness, R-Value -18 - White Film/Engineered Foil

Highly efficient - reflects 95% of radiant energy, an ideal radiant barrier. R-value up to 18 (with one layer), up to 25 (with two layers). Standard ASTM D-638. Vapor barrier - prevents condensation, unaffected by humidity and moisture. Meets or exceeds all ASTM C1313 standards - Class A Fire Rating (E84 with E2599 mounting). Corrosion resistance per D3310 is provided by a proprietary clear coating on the engineered foil surface. Industrial / commercial grade reflective insulation with a -20mm foam core is tear and puncture resistant, yet can be easily cut with a utility knife. Reflects 95% of the radiant heat. Offers cost savings by reducing heating expenses in winter and cooling expenses in summer. Non-toxic - will not cause irritation to skin, eyes, or throat. Non-allergenic