U.S. Commercial

STYROFOAM™ extruded polystyrene foam insulation products from Dow Building Solutions offer superior insulation and moisture protection in foundation applications. There are several advantages to insulating the exterior surface of foundation walls. The block or concrete wall insulated on the exterior surface is not subjected to large temperature differences so will not act as a thermal bridge. Block walls insulated on the exterior undergo less air convection in block cavities. At nearly room temperature, the basement walls act as a heat reservoir, buffering interior temperature fluctuations. In some instances, external freezing forces are prevented from acting directly on the basement wall. And finally, unlike interior applications, no living space is lost. Insulating on the exterior side of foundation requires products that are extremely moisture resistant, tough and durable.