DuPont™ Styrofoam™ Brand Cavitymate™ Ultra Extruded Polystyrene Insulation is an XPS foam insulation board with an R-value of 5.6 per inch. It features square edges on all four sides that makes it easy to fit between brick ties in cavity wall applications. DuPont™ Styrofoam™ Brand...
Learn about the rich history of Styrofoam™ Brand extruded polystyrene (XPS) insulation – an innovative, sustainable building product that created an entire insulation material category since its invention in 1941. Discover how XPS’s unique closed-ce