One 4 ft. x 25 ft. roll. Core sealed on both 25' sides with flange. Prodex 4 ft. x 25. ft is More than a Radiant barrier - It's Also a Reflective Insulation (R-value 16) And a Vapor Barrier - All in one product! One solution for Heat, Condensation and Cold.
Prodex Difference: Energy Star Qualified : ICC-ES Recognized : R 16 unaffected by humidity : Prevents 97% of radiant heat transfer : Vapor barrier : UV resistance : Elastic : 19dba noise reduction : 90 degree celsius (194 fahrenheit) contact temperature rating : Does not promote mold or mildew : Does not provide for nesting of rodents, bugs or birds : Seals around nails (no leak) : Reflective aluminum foil on each side of 5mm (13/64) closed-cell polyethylene foam center : Keeps its shape over time (doesn't collapse) : Member of US Green Building Council - Made with 100% recyclable virgin raw materials : Over 2 billion square feet sold worldwide. Click to compare to other insulations. Read Prodex insulation reviews top left of page. Click for installation instructions.