MetShield HT has been designed to comply with the Florida Building Code, including the High Velocity Hurricane Zone of the Florida Building Code. MetShield HT meets the requirements of ATSM D1970, for self-adhering polymer modified bituminous sheet materials used as steep slope roofing underlayment for ice dam protection.
MFM Building Products, a manufacturer of a full envelope of waterproofing and weather barrier products for the building industry, has announced that its Ultra HT Wind & Water Seal high temperature roofing underlayment has been formally approved by Miami-Dade to comply with the Florida Building Code including the High Velocity Hurricane Zone. A copy of the NOA No. 13-1125.06 can be found on Miami-Dade’s website.
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, Florida Building Code FL16562, Miami-Dade County NOA 13-1125.06 and comes with a 10-Year Limited Warranty.