SOPREMA SELECT LASTOBOND® REINFORCED HT FR is applied directly to the plywood or OSB deck of a steep-slope roof to provide secondary water shedding beneath standing seam metal or asphalt or metal shingle coverings. SOPREMA SELECT LASTOBOND REINFORCED HT FR is composed of SBS-modified bitumen reinforced with a fiberglass mat. The top side is surfaced with a slip-resistant polypropylene film and the underside is surfaced with a split-release film for ease of installation.
