Cover Board

Cover board is used as an additional insulation board in certain roofing systems, such as single-ply membrane systems, where a high density impact resistant barrier is needed between the thermal insulation and the membrane. It is a substrate (see definition below) to which a membrane is fastened or adhered, but it also offers strong protection against destructive forces like hail, the installation of Solar Panels, heavily trafficked access areas and equipment maintenance traffic.

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