MFM Building Products offers new high-temp underlayment: Seal Plus

MFM Building Products, a manufacturer of a full envelope of waterproofing and weather barrier products for the building industry, is pleased to offer MFM Wind & Water Seal Plus to the residential and commercial construction marketplace.

MFMMFM Wind & Water Seal Plus is a 40-mil, high-temperature rated waterproofing underlayment composed of a reinforced, non-slip polymer film laminated to a rubberized asphalt adhesive system. This self-adhering membrane is engineered for use under all roofing materials, particularly metal roofing systems where extreme heat is generated. It aggressively adheres to most common construction substrates.   

MFM Wind & Water Seal Plus is self-sealing around common fasteners to prevent damage caused by water penetration or leaks from ice dams and wind-driven rain. It is ideal for secondary water resistance should the main roof system fail. A split release liner protects the adhesive and allows for easy installation in valley applications.  

MFM Wind & Water Seal Plus is available in a roll size of 36 inches wide x 67 feet long to provide 200 square feet of coverage per roll.  The product can be applied at a minimum temperature of 50 degrees and has a maximum temperature rating of 250 degrees. UV exposure time is 60 days. MFM Wind & Water Seal Plus meets ASTM D-1970, Florida Building Code FL 11842.3 and is Miami-Dade County approved.

The product is available at select building supply distributors by contacting the company at 800-882-7663 or available for purchase online at

Related Posts: