Insulation and Cover Boards


Johns Manville DuraFoamĀ® is a high thermal rigid roof insulation board composed of a closed cell polyisocyanurate foam core bonded in the foaming process to DuraBoardĀ®, 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.

Cookies on

The Johns Manville website employs cookies to improve your user experience. We have updated our cookie policy to reflect changes in the law on cookies and tracking technologies used on websites. If you continue on this website, you will be providing your consent to our use of cookies.

I accept cookies from this site