VaproShield® is pleased to launch RoofBlock HT High Temperature Vapor Barrier/Air Barrier Roofing Underlayment. RoofBlock HT is meant to be utilized in sloped roofing applications under metal, tile, slate, wood, shingles, or shakes; is designed for use at eaves to prevent damage from ice dams and in conjunction with SlopeShield Plus SA; can be applied to entire roof deck in vented attic spaces as a vapor barrier; is high-temperature resistant, which allows membrane to be exposed to heat of 260°F or less; and is water resistant around most nominal fasteners.

RoofBlock HT is a high temperature roofing underlayment composed of a high-strength slip-resistant spider web backing laminated to a high-performance, high-temperature asphalt compound with a film release for ease of application.