Styrofoam™ Brand Square Edge Extruded Polystyrene Foam Insulation* is an extruded polystyrene foam (XPS) insulation board that meets the needs of the commercial foundation and building floor slab market and can also be used for attics, foundations/slabs and crawl spaces in residential applications.
With more than 60 years of proven performance in wet environments, the closed-cell structure of Styrofoam™ Brand Square Edge Insulation resists water pickup, enabling it to retain a high R-value over time – a necessary property in wet, below-grade commercial foundation applications. Styrofoam™ Brand Square Edge Insulation is classified as a Type IV product when tested in accordance with ASTM C578 and provides a long term insulating performance of R-5 per inch.
* Styrofoam™ Brand Square Edge Insulation is a former product of The Dow Chemical Company
WARNING:Cancer and Reproductive Harm - www.P65Warnings.ca.gov