Designed for residential construction, this Styrofoam™ Brand extruded polystyrene (XPS) foam insulation provides a moisture-resistant barrier for new homes. It’s ideal for applications where the foam sheathing is fastened to frame walls.
Styrofoam™ Brand Duramate™ Plus
Duramate™ Plus is a Styrofoam™ Brand extruded polystyrene (XPS) foam insulation, designed for residential home construction. It is DuPont's strongest XPS foam insulated sheathing, with proprietary extra-tough plastic on both sides.
|Thermal Resistance at nominal 1/2” @ 75°F mean temp.<sup>1</sup>||ASTM C518||ft2 •h•°F/Btu, min., R-value||3|
|Compressive Strength<sup>2</sup>||ASTM D1621||psi, min.||15|
|Water Absorption<sup></sup>||ASTM C272||% by volume, max.||0.3|
|Dimensional Stability<sup>3</sup>||ASTM D2126||% linear change, max.||2|
1R-values are consistent with criteria of ASTM C578 and requirements of FTC R-value rule (16 CFR Part 460).
2Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first. Since Styrofoam™ Brand Extruded Polystyrene Foam Insulations are visco-elastic materials, adequate design safety factors should be used to prevent long-term creep and fatigue deformation. For static loads, 3:1 is suggested. For dynamic loads, 10:1 is suggested.
3Based on 1” (25 mm) thickness.
|R-Value||Thickness (in.)||Board Size (ft.)||Edge Treatment|
|3||0.5||4 x 8||Butt edge|
|3||0.5||4 x 9||Butt edge|