An extruded polystyrene foam insulation board with 1/2" x 1/4" drainage channels on the bottom long edge of each board. Designed for installation above waterproofing or roofing membranes in plaza deck applications. 10-year limited thermal warranty when installed in the PMR application.
Building Code Compliance Complies with ASTM C 578 Type VII. Meets IBC/IRC requirements for foam plastic insulation. See ICBO-ES ER 2257, BOCA-ES RR 21-02, NES NER 699, Und. Lab. Inc.® Classified, see Classification Certificate D369.