DuraBoard is impact resistant, has high wind uplift ratings and is heat-weldable for SBS and APP membranes. It is less expensive and easier to install in these applications because they can be directly heat-welded to DuraBoard without an additional base sheet. With its weight- bearing strength and rigidity the one-inch DuraBoard can be used to span the wider rib openings of metal roof decks. And, it still has the advantage of a minimum recycled content of 25 percent.

 

"We thought it was very important to provide our customers with a competitively priced, high quality insulation product that could be used in both SBS and APP roof system installations," said Carole Kagiyama, Market Manager for roofing insulation products for Johns Manville. "This new formula has a higher density and a new proprietary coating that provides excellent fire resistance and a durable surface for heat-welded applications."

 

DuraBoard, which is available in ½ inch, inch and one-inch thicknesses, is the newest addition to the JM full line of high performance insulations for built-up and modified bitumen roofs. The complete line includes perlite, fiber glass and polyisocyanurate foam insulation products to meet every roofing insulation need.

 

Johns Manville (NYSE:JM) is a leading manufacturer and marketer of premium quality insulation and building products. The 141-year-old Denver-based company had sales of $1.78 billion in 1998. Johns Manville produces and markets insulation products for buildings and equipment; commercial/industrial roofing systems; and engineered products including high-efficiency filtration media, fibers, fabric and nonwoven mats used as reinforcements in building and industrial applications. Johns Manville employs approximately 9,300 people and operates 54 manufacturing facilities in North America, Europe and China. Additional information can be found at www.jm.com