Roofing Cover Boards.
Cover boards placed between the roof insulation and the roof membrane provide support for the membrane and a firm substrate for adhesion. This layer of protection over the insulation helps resist roof membrane damage and leaks caused by hail storms, construction traffic and fire in certain cases.
Cover board types include: high density fiber board, oriented strand board, plywood, gypsum, silicone based gypsum boards and cement based composites.
Installation methods: loose laid, adhered, mechanically attached or ballasted.
Roof assemblies with polystyrene or polyisocyanurate foam plastic insulation can both benefit from the proper use of roofing cover boards.
Contact your roofing material supplier regarding the right product for you.