Eliminate thermal bridges and minimize heat loss by insulating exterior walls with energy-saving Owens Corning FOAMULAR? CodeBord? Extruded Polystyrene Rigid Insulation. It has an outstanding thermal resistance of R-5 per inch, a strong compressive strength of 20 PSI, and exceptional moisture resistance. CodeBord? insulation is GREENGUARD Indoor Air Quality Certified? and contains 20% recycled material content. It?s lightweight and easy to cut and handle for quick installation and maximum job site efficiency. To further reduce heat loss and air and water infiltration, use CodeBord? insulation with shiplapped edges.