Palisade® Butyl HT is a high temperature (265°F), self-adhered roofing underlayment designed for steep slope roof applications. Palisade Butyl HT includes a top surface with Stronghold Skid Resistant Technology®, which is designed to provide roofers with superior walkability in the most demanding steep slope conditions of wet & dusty surface environments. Palisade Butyl HT is designed for use under metal, asphalt shingles, synthetic shingles, primed cedar shakes, slate and tiles.