Product Review

A Better Foundation Insulation & Drainboard

For years polystyrene has been just about the only game in town for exterior foundation insulation. The problem is that

extruded polystyrene—the type of polystyrene most commonly used on foundations—is produced with HCFCs that deplete ozone, and

Published November 1, 1995

(1995, November 1). A Better Foundation Insulation & Drainboard. Retrieved from