Give new homes an edge over the elements
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.
Physical Properties
| Method | Unit | Value | |
|---|---|---|---|
| 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.
Available Sizes
| 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 |
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