For the person that wants the best! The thickest and strongest Radiant Barrier product on the market. The increased strength of this material makes it the easiest to install. Available in Partials, 500, and 1,000 sq. ft. rolls or custom lengths beyond. Key Benefits: → Thickest and strongest radiant barrier product on the market. → Allows for easier and quicker installation. → SOLID VAPOR BARRIER, WONT OXIDIZE OR RUST