MFM Building Products achieves UL Class A Fire Rating
MFM Building Products, a manufacturer of waterproofing and weather barrier products for the building industry, recently achieved a UL Class A Fire Rating for the company’s Ultra HT Wind & Water Seal underlayment.
Ultra HT is a 45-mil., self-adhered roofing underlayment for use in steep-slope roofing and re-roofing installations. The product features a cross-laminated polyethylene top film with a traction coating for increased walkability. The mastic is temperature rated to 250°F for use under metal and tile applications.
In August 2024, Ultra HT received a UL Listing as a Class A fire resistant barrier when used in conjunction with 24 GA minimum steel or 16 oz. copper UL listed roofing panels per UL 790. For complete details on roof assemblies, refer to the Ultra HT Installation Instructions or the UL Listing TGFU R11672. Typical applications for these types of roof systems include commercial buildings, architectural structures, structural buildings and some residential projects, too.
In addition, Ultra HT Wind & Water Seal is tested to ASTM D 1970, Florida Building Code FL #11842.3, Miami-Dade County Approved, ICC-ES ESR-1737, LA County (LARC/LABC), State of California (CRC/CBC), Texas Department of Insurance Listed, Fortified Building Program listed, and Canadian CCM 14048-L. Ultra HT carries a 10-year warranty and is manufactured in the U.S.
