Duro-Last Roofing Inc.
Duro-Guard SOPRAVAPR air barrier/vapor retarder is composed of a self-adhesive SBS modified bitumen with a polyethylene facer on the top surface and a silicone release film on bottom. It can be installed on steel, plywood, gypsum, concrete board, asphalt panel, or concrete deck. Can also be used as a temporary roof in new construction or roof tearoffs.