SOPRABOARD is a semi rigid, asphaltic roofing substrate board for use in approved multi-ply membrane and flashing assemblies. SOPRABOARD is composed of a mineral fortified asphaltic core formed between two fiberglass reinforcing plies. SOPRABOARD is designed for use with SOPREMA®’s SBS-modified bitumen membranes and may be used as a protection board in SOPREMA’s waterproofing systems and assemblies.

Product Properties

  • Material Asphaltic
  • Type Board
  • Use Coverboard


Place SOPRABOARD in desired position. Apply SOPRABOARD with
mechanical fasteners, or adhere with DUOTACK® insulation adhesive or hot asphalt, following the details for the uplift pressure required. Subsequent approved base-ply membranes are adhered to SOPRABOARD via heat welding, cold adhesive, self-adhesive or hot asphalt applications. Refer to the SOPREMA SBS Roofing Manual for additional application guidelines.


Testing & Approvals

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Related Projects

Lancaster Material Distribution Center – Lancaster, Texas

In May 2017, the Lancaster Material Distribution Center needed a new roof. While the original SOPREMA asphalt system was in decent shape, it was nearly 25 years old and at the end of its life. Through value engineering, it was decided that the existing system would be left in place to save cost. SOPREMA products were selected to re-roof this project due to the proven durability of the existing roof. The system that was installed included ELASTOCOL® 500, COLVENT® Flam, ELASTOPHENE® Flam LS FR GR, SOPRALENE® Flam 180 and SOPRALENE Flam 180 FR GR.

Fishers Island Club – Fishers Island, New York

When it was time to build a new building at the club, SOPREMA products were called into action. On this new building, our COLPHENE® 3000 product was chosen to waterproof the foundation because of its superior strength and adhesion.