This product comprises a 15mm thick formulated perlite board autohesively bonded to a closed cell polyurethane foam core.
It has a special SBS bituminous coating to the board surface and has been designed primarily for direct torch on fully bonded weatherproofing systems.
It has an excellent thermal resistance, is dimensionally stable with an extremely high compressive strength and built in heat sink and is compatible with most built-up roofing systems.