Product Focus: Underlayment and Insulation

Economical High Temp Underlayment MFM Building Products MFM Wind & Water Seal is a 40-mil, self-adhering roofing underlayment designed for use under most roofing systems, including metal, where high heat is generated. Competitively priced, the underlayment features an embossed traction surface, self-seals around roofing fasteners, and is rated to 250 degrees Fahrenheit for long-lasting protection.