PERIMATE™ Extruded Polystyrene (XPS) Foam Insulation is a moisture resistant, durable and lightweight foam board designed specifically for use on exterior foundation walls. PERIMATE™ 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.
- Resists moisture
- Durable and lightweight
- Patented dovetail grooves on one face
- Shiplap edges on the long edges
- Protects the waterproofing membrane
- Grooves face the soil to channel water down to the footing drains or weeping tiles