CombiMat® - The Versatile Inlay for Today's New Generation of Johns Manville Roofing Substrates, Combining the Advantages of Polyester and Glass Fiber Mat in One Single Product:

Bad Homburg (April 17, 2002) --- The market demand for what are commonly called combi-inlays, used in the manufacturing of bitumen roofing substrates, is continuously increasing. Johns Manville, one of the leading manufacturers of high-quality products for the building materials industry has acted on this demand with our CombiMat® inlay. Our glass fiber and polyester scientists and engineers, using state-of-the-art technology, successfully joined forces to develop an inlay which uniquely combines the advantages of polyester and glass fiber mat in a worldwide first.

Highly tear resistant and flexible polyester mat is combined with dimensionally stable, specially prepared glass fiber mat through a unique needling technique that yields a form-locked compound with the positive properties of glass fiber mat, including an improved burn behavior.

CombiMat® can be processed into polymer bitumen roofing by any bitumen roofing manufacturer using the standard manufacturing method and standard bitumen types. CombiMat® is also suited for other areas of application like sound protection or flooring.

Johns Manville's product range includes glass fiber mat, glass fiber fabric, and polyester inlays that are processed in manufacturing roofing substrates of different qualities worldwide. Johns Manville is the only single-source supplier of high-quality inlays of this kind. Johns Manville, a Berkshire Hathaway company, is a leading manufacturer and marketer of premium-quality building and specialty products. In business since 1858, the Denver-based company has sales in excess of $2 billion and holds leadership positions in all of the key markets that it serves. Johns Manville employs approximately 9,500 people and operates 52 manufacturing facilities in North America, Europe and Asia. Johns Manville Europe is the European operations for one of Johns Manville's three strategic business units, and has 11 manufacturing locations in Germany, Sweden, the U.K., Poland, Slovakia and China. Additional information can be found at www.jm.com.