VAPOR BARRIER - Unaffected by humidity and moisture, can be used indoor/outdoor.
ENVIRONMENTALLY FRIENDLY - non toxic, will not irritate skin, eye or throat. Non allergic.
SUPREME QUALITY - 3mm closed-cell polyethylene foam (not a cheap bubbles), laminated with highly reflective engineered foil on one side and a pure white polyethylene film on another.
EASY TO WORK WITH - Easy to install, easy to cut, strong but lightweight.