Insulation and Cover Boards

DuraFoam

Johns Manville DuraFoam® is a high thermal rigid roof insulation board composed of a closed cell polyisocyanurate foam core bonded in the foaming process to DuraBoard®, an expanded perlite mineral aggregate board. The top surface of DuraFoam is sealed with a special polymerized asphalt emulsion coating to allow for the direct application of SBS or APP membranes utilizing heat weld application techniques.

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