Self-stick Underlayment for Asphalt Shingle and Metal Roof Systems

MFM Building Products’ Ultra HT Wind & Water Seal

MFM Building Products, a manufacturer of a full envelope of waterproofing and weather barrier products for the building industry, is proud to offer a new High Temperature underlayment—Ultra HT Wind & Water Seal. This self-adhering “self-stick” roofing underlayment is composed of a cool white, non-slip, cross-laminated, high density polyethylene film laminated to a high temperature rubberized asphalt adhesive system. This premium product is extremely tough and durable, and offers a 90-day UV exposure rating.

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.