The Barrier™ underground insulation is a high-performance, easy to use and cost effective material for all of your underground and underconcrete insulation requirements. The core component is an extruded expanded polystyrene (EPS) material with a tough, heavy-duty 3mil polyethylene film laminated to both sides. Along the 60 foot edge of The Barrier, there is a 1" overlap of film running the length of the material with an aggressive double-faced adhesive on the bottom side of the overlap. This allows one roll to be "butted" up to the next roll, expose the back of the tape, compress - and you have a seamless closure that will not allow the transfer of heat / cold migration and will completely eliminate the transfer of all forms of moisture.

• High-Performance Underground Insulation
• Easy to Use and Cost Effective Material
• A Thermal Barrier, a Vapor Barrier, and Moisture Barrier all in One
• Stops 100% of Moisture Transfer
• Combines EPS Extruded Foam and Heavy Polyethylene Film