Perm-A-Barrier Aluminum self-adhered flashing is composed of durable, high density polyethylene aluminum surfaced sheet, cross-laminated, backed by an aggressive, pressure sensitive rubberized asphalt adhesive. Perm-A-Barrier Aluminum Flashing provides extended UV exposure and improved sealant adhesion to the film.

Perm-A-Barrier® Aluminum Flashing is ideal for protecting and sealing critical areas of the building superstructure from the damaging effects of the elements. By minimizing air and water vapor flow through the building exterior at transition areas. It Seals transition and detail areas to provide a continuous air barrier. It Prevents premature deterioration of the building envelope.