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MFM Building Products Introduces Underlayment For Walls

MFM-Ultra-HT-for-VerticalCoshocton, OH - MFM Building Products, manufacturer of waterproofing and weather barrier products for the building industry, has announced the availability of its Ultra HT Wind & Water Seal™ high-temperature roofing underlayment for vertical wall applications.

Ultra HT is a self-adhering “self-stick” membrane composed of a cool white, cross-laminated, high-density polyethylene film laminated to a high temperature rubberized asphalt adhesive system rated to 250°F. In addition to being extremely tough, the underlayment self-seals around fasteners and offers a 90-day UV exposure rating.

The product is ideal for vertical applications under metal panel systems and parapet walls capped with metal tiles. The high-temperature adhesive system withstands the high temperatures generated by these systems to ensure complete waterproofing protection. Special installation instructions must be followed for all vertical applications.

Ultra HT has a thickness of 45 mils and is available in a 12”, 18” and 36” by 67’ length rolls. As a roofing membrane, Ultra HT meets ASTM D 1970, Florida Building Code FL16562, and Miami-Dade County NOA 13-1125.06.

For full technical data, installation instructions or to request a free product sample, visit the company’s website at

About MFM Building Products

MFM Building Products offers waterproofing and weather barrier products. To learn more, visit

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