Commercial | Residential | Multifamily | Wall
The proven insulation solution for wet environments and applications
With more than 70 years of proven performance in wet environments, DuPont™ Styrofoam™ Brand Square Edge Extruded Polystyrene Foam Insulation is ideal for use in foundations, floor slabs, attics and crawlspaces, where it resists water pickup – a characteristic that allows it to maintain its high R-value.
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Styrofoam™ Brand Square Edge
Styrofoam™ Brand Square Edge XPS Extruded Polystyrene Insulation is a foam insulation board that meets the needs of the commercial foundation and building floor slab market. It also can be used for attics, foundations/slabs and crawlspaces in residential applications. The product’s closed-cell structure resists water pickup, enabling it to retain a high R-value over time – a necessary property in wet, below-grade commercial foundation applications.
Features & benefits
| Moisture Resistant |
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| Energy efficient |
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Physical Properties
| Method | Unit | Value | |
|---|---|---|---|
| Thermal Resistance per inch, 75°F mean temp., R-value<sup>1</sup> | ASTM C518 @ 75°F mean temp., Btu•in/ft2•hr•°F | - | 5.0 |
| Compressive Strength<sup>2</sup> | ASTM D1621 | psi, min. | 25 |
| Water Absorption<sup></sup> | ASTM C272 | % by volume, max. | 0.1 |
| Water Vapor Permeance<sup>3</sup> | ASTM E96 | perm, max | 1.5 |
| Maximum Use Temperature<sup></sup> | - | °F | 165 |
| Coefficient of Linear Thermal Expansion<sup></sup> | ASTM D696 | in/in•°F | 3.5 x 10-5 |
| Flexural Strength<sup></sup> | ASTM C203 | psi, min. | 50 |
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