FlexClad-400 is a patented, water and weather-resistant, pre-fabricated, self-adhering, sheet-type protective membrane to protect the costly investment of your piping or ductwork system.

Whether your project is new construction, an addition, or repair, rely on MFM Building Products for the best in underlayment technology solutions. The choices are complex, involving all kinds of roofing materials, all kinds of substrates, and all kinds of climates. MFM underlayments help you match performance and cost factors for virtually every job.

MFM Building Products provides an entire "envelope" of weather barrier products and flashing products.