Commercial | Residential | Multifamily | Wall
A proven solution for wet environments
Ideal for use in attics, foundations, and crawl spaces, Styrofoam™ Brand SM Insulation is an extruded polystyrene foam (XPS) insulation that resists water pickup – a characteristic that allows it to keep high R-value.
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Styrofoam™ Brand SM Insulation
Styrofoam™ Brand SM Insulation is an extruded polystyrene foam (XPS) insulation board that meets the needs of the commercial foundation and building floor slab market and can also be used for attics, foundations/slabs and crawl spaces in residential applications. With more than 60 years of proven performance in wet environments, the closed-cell structure of Styrofoam™ Brand SM Extruded Polystyrene Foam Insulation 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
| Bonds dry, treated, damp and frozen surfaces |
|
| Excellent adhesion |
|
Physical Properties
| Method | Unit | Value | |
|---|---|---|---|
| Thermal Resistance per inch @ 75°F mean temp. @ 40°F mean temp. @ 25°F mean temp.<sup>1</sup> | - | - | 5.0 |
| Compressive Strength<sup>2</sup> | ASTM D1621 | psi, min. | 30 |
| 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 |
Available Sizes
| RSI | Thickness (mm) | Board Size (metre) | Edge Treatment |
|---|---|---|---|
| 0.88 | 25 | .61 x 2.44 | Butt edge |
| 0.88 | 25 | .61 x 2.44 | Shiplap (all sides) |
| 1.32 | 40 | .61 x 2.44 | Butt edge |
| 1.32 | 40 | .61 x 2.44 | Shiplap (all sides) |
| 1.76 | 13 | .6 x 2.4 | Butt edge |
| 1.76 | 13 | .6 x 2.4 | Shiplap (all sides) |
| 1.76 | 50 | .61 x 2.44 | Butt edge |
| 1.76 | 50 | .61 x 2.44 | Shiplap (all sides) |
| 1.76 | 50 | 1.22 x 2.44 | Shiplap (all sides) |
| 2.2 | 65 | .61 x 2.44 | Shiplap (all sides) |
| 2.64 | 75 | .61 x 2.44 | Butt edge |
| 2.64 | 75 | .61 x 2.44 | Shiplap (all sides) |
| 2.64 | 19 | .6 x 2.4 | Butt edge |
| 2.64 | 19 | .6 x 2.4 | Shiplap (all sides) |
| 3.52 | 100 | .61 x 2.44 | Butt edge |
| 3.52 | 100 | .61 x 2.44 | Shiplap (all sides) |
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