Ultra HT is engineered as a whole roof underlayment for use under asphalt shingle and metal roofing systems. Product rolls out smooth and lays flat while offering the contractor excellent foot traction. Ultra HT comes with a split release liner for use in valleys, ridges, around chimneys and at eaves for protection against ice dams, wind-driven rain and water penetration. Ultra HT aggressively adheres directly to the roof deck and self-seals around roofing fasteners. Product is rated to 250 F maximum.
Ultra HT has a thickness of 45 mils nominal and is available in a 36-inch width by 67-foot length (2 square) roll. Product meets ASTM D 1970 and Florida Building Code FL16562, and comes with a 10-Year Limited Warranty.