News Release New Wolverine Encore Colors –Page 2 of 2

For immediate release:

April 5, 2011

CertainTeed Expands Color Palette for Wolverine® EncoreTM Vinyl Siding Line

(Valley Forge, Pa.) – Wolverine® EncoreTM vinyl siding now includes a new Cypress color, a warm, neutral hue that complements popular home styles and natural surroundings. The new offering rounds out a palette of 13 low-gloss colors and equips building professionals with more options to help homeowners enhance the exterior of their homes.

“Wolverine Encore siding is attractive, easy to maintain, and surprisingly economical,” says Brian Kirn, marketing manager for CertainTeed’s Siding Products Group. “The addition of a new color option that aligns with current exterior design trends further reinforces these benefits.”

Wolverine Encore siding is available in four popular styles and features a natural woodgrain finish. The product is virtually maintenance-free, never needs to be painted, and is backed by a lifetime limited warranty. Wolverine Encore features patented STUDfinder™ technology for the accurate locating of studs and offers superior fire resistance, with a Class 1(A) fire rating. In addition, its wind-resistant rolled-over nail hem has been tested to withstand wind load pressures up to 135 miles per hour.

For more information, visit certainteed.com.

About CertainTeed

Through the responsible development of innovative and sustainable building products, CertainTeed has helped shape the building products industry for more than 100 years. Founded in 1904 as General Roofing Manufacturing Company, the firm's slogan "Quality Made Certain, Satisfaction Guaranteed," quickly inspired the name CertainTeed. Today, CertainTeed® is North America’s leading brand of exterior and interior building products, including roofing, siding, fence, decking, railing, trim, foundations, pipe, insulation, gypsum, ceilings and access covers.

A subsidiary of Saint-Gobain, the world’s largest building products company, CertainTeed and its affiliates have more than 6,000 employees and more than 65 manufacturing facilities throughout the United States and Canada. In 2009 and 2010, CertainTeed, which is headquartered in Valley Forge, Pa., was named ENERGY STAR Partner of the Year by the U.S. Environmental Protection Agency, a national award that recognizes environmentally responsible corporations. The group had total sales of approximately $3 billion in 2010. www.certainteed.com.

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