CertainTeed Partners With Sister Companies in Team Sponsorship of Haas/CNC NASCAR Nextel Cup Team for 2006

VALLEY FORGE, Pa., Feb. 23, 2006 -- CertainTeed Corporation, one of North America's leading building products manufacturers, is proud to announce a partnership with sister companies Norton Abrasives and BPB in a team sponsorship of the number 66 Best Buy Chevrolet for the 2006 NASCAR Nextel Cup Season. The car, driven by 2000 NASCAR Busch Series champion Jeff Green is owned by Haas/CNC Racing.

The Norton Abrasives brand of Saint-Gobain Abrasives is the world's largest manufacturer and supplier of performance abrasives. BPB, which was recently acquired by CertainTeed's parent company Saint-Gobain of Paris, France, is the world leader in gypsum wallboard and a leading supplier of ceiling tiles and finishing products.

Peter Dachowski, President and CEO of CertainTeed Corporation, says the team sponsorship is a great way to connect with customers. "This marks the sixth year CertainTeed has been part of the one of the largest spectator sports in America. NASCAR has been an excellent vehicle for doing business with building professionals who look forward to attending races, meeting drivers, and interacting with CertainTeed each year. I am thrilled that BPB and Norton Abrasives are part of our team."

As part of the sponsorship, CertainTeed will host 15 race-day hospitality events at which Green will be on deck to sign autographs and talk with invited guests of the company, as well as Norton Abrasives and BPB. In addition, CertainTeed has prime positioning on the number 66 car with logo placement above the rear quarter panel. Norton Abrasives and BPB are also featured on the car. "NASCAR offers CertainTeed, Norton Abrasives and BPB fantastic brand exposure in a sport known for its intense, brand-loyal fan base," says Dachowski.

The Haas/CNC Racing team is based in Harrisburg, North Carolina, and has recently broken ground on a state-of-the-art 140,000 square foot auto shop in Kannapolis, North Carolina, where Green and his wife reside.

About CertainTeed Corporation

Through innovation and creative product design, CertainTeed Corporation has helped shape the building products industry for more than 100 years. Founded in 1904 as General Roofing Company, the firm made its slogan "Quality Made Certain, Satisfaction Guaranteed," which quickly inspired the name CertainTeed. Today, CertainTeed is a leading North American manufacturer of residential and commercial roofing; vinyl and fiber cement siding; vinyl and composite fence, railing and decking; vinyl windows; residential, commercial and mechanical insulation; pipe and foundations; and access covers.

Headquartered in Valley Forge, Pennsylvania, CertainTeed employs approximately 7,000 employees and 40 manufacturing facilities throughout the U.S. CertainTeed had sales of $2.8 billion in 2005. http://www.certainteed.com/

CertainTeed, Norton Abrasives, and BPB are subsidiaries of Saint-Gobain of Paris, France. Saint-Gobain is a leading producer of construction products (building materials, insulation and pipe), high-performance materials (abrasives, industrial ceramics, high-performance plastics, and reinforcements), flat glass, and glass containers. The company is also a leading distributor of building products in Europe. One of the top 100 industrial companies in the world, Saint-Gobain's 2005 sales were approximately $44 billion.