Commercial | Residential | Multifamily | Wall
Moisture-resistant protection for basement walls
Designed for exterior foundation walls, Perimate™ XPS Insulation provides a lightweight, durable system that protects the waterproofing membrane while it fends water drainage away from the foundation.
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Styrofoam™ Brand Perimate™
Styrofoam™ Brand Perimate™ Extruded Polystyrene (XPS) Foam Insulation features patented dovetail grooves on one face and shiplap edges on the long edges. When installed on the exterior of basement walls, it provides insulation, protects the waterproofing membrane and assists water drainage away from the foundation.
Features & benefits
| Grooves face the soil to channel water down to the footing drains or weeping tiles |
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| Resists moisture |
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Physical Properties
| Method | Unit | Value | |
|---|---|---|---|
| Water Absorption, max.<sup></sup> | ASTM C272 | Vol % | 0.3 |
| Thermal resistance (per inch)<sup></sup> | ASTM C518 | ft2•h•°F/Btu. R-value, min. | 1.063” R-5-0; 2.125” R-10-0 |
| Compressive Strength<sup></sup> | D1621 | Psi, min (kPa) | 30 (210) |
| Drainage Capacity<sup></sup> | D4716 | Gal/min/ft (m3 /hr/m) | 3.0 (>0.72) |
| Water Vapor Permeance<sup></sup> | E96 | perm (ng/Pa•s•m2 ), max. | 1.1 (60) |
| Maximum Use Temperature<sup></sup> | - | °F (°C) | 165 (74) |
| Coefficient of Linear Thermal Expansion<sup></sup> | D696 | in/in•°F (mm/m•°C) | 3.5 x 10-5 (6.3 x 10-2) |
| Flexural Strength<sup></sup> | C203 | psi (kPa), min. | 50 (350) |
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