Isolofoam iFlexFoam 160 4ft x 8ft R10

This expanded polystyrene insulation panel of 16 PSI features a laminated membrane on each side and a 4-sided ISOCLICK clipping system. Designed for under slab insulation, it is fast and easy to install. Flexible and resistant to breakage, the panels are clipped together, preventing their movements after installation and ensuring continuity of insulation between the panels. Permanent insulation value. High resistance to freezing, thawing, water and moisture.