Commercial | Residential | Multifamily | Wall
Helping rooftops resist the elements
A durable Styrofoam™ Brand extruded polystyrene (XPS) foam insulation designed for low-slope commercial roofs. Cover all the bases with a product that eliminates the need for a thermal barrier as it resists moisture and freeze-thaw impacts.
Styrofoam™ Brand Deckmate™
A durable Styrofoam™ Brand extruded polystyrene (XPS) foam insulation designed for low-slope commercial roofs. Cover all the bases with a product that eliminates the need for a thermal barrier as it resists moisture and freeze-thaw impacts.
Features & benefits
| Boosts energy performance |
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| Closed-cell structure |
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| Direct-to-deck application |
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| Lightweight and durable |
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Physical Properties
| Method | Unit | Value | |
|---|---|---|---|
| Thermal Resistance per inch (25 mm) @ 75°F (24°C) mean temp.<sup>1</sup> | C518 | ft2 •h•°F/Btu (m2 •°C/W), R-value (RSI)(1) | 5.0, 0.88 |
| Compressive Strength..<sup>2</sup> | D1621 | psi (kPa), min. | 16 (116) |
| Flexural Strength<sup></sup> | C203 | psi (kPa), min. | 35 (244) |
| Water Absorption<sup></sup> | C272, D2842 | % by volume, max. | 0.3, 0.9 |
| Water Vapor Permeance.<sup>3</sup> | E96 | perm (ng/Pa•s•m2 ), max. | 1.5 (90) |
| Dimensional Stability, max<sup>4</sup> | D2126, CAN/ULC S701 | % linear change, max. | 1.5 |
| Coefficient of Linear Thermal Expansion<sup></sup> | - | x105in/in °F (x102mm/m °C) | 3.5 x 10-5 (6.3 x 10-2) |
| Maximum Use Temperature<sup></sup> | - | °F (°C) | 165 (74) |
| Flame Spread<sup>5</sup> | E84 | - | |
| Smoke Developed<sup>6</sup> | E84 | - |
11R means resistance to heat flow. The higher the R-value, the greater the insulating power.
24Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first.
3Based on 1” (25 mm) thickness.
4Tested at 158°F/97% RH/7 days.
5These numerical flame spread and smoke developed ratings are not intended to reflect hazards presented by this or any other material under actual fire conditions.
6These numerical flame spread and smoke developed ratings are not intended to reflect hazards presented by this or any other material under actual fire conditions.
Available Sizes
| RSI | Thickness (mm) | Board Size (metre) | Edge Treatment |
|---|---|---|---|
| 1.76 | 50 | .61 x 2.44 | Butt edge |
| 1.76 | 50 | .61 x 2.44 | Shiplap (all sides) |
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