News Release For immediate release: August 1, 2012 For more information contact: Michael B. Loughery, CertainTeed (610) 341-7328 mike.b.loughery@saint-gobain.com www.certainteed.com/pressroom CertainTeed Roofing Plant Earns Portland City Wastewater Treatment Award (Valley Forge, Pa.) – For the second consecutive year, CertainTeed Corporation’s Portland Roofing Plant has received the Industrial Source Control Award for demonstrated compliance to industrial pretreatment requirements from the Portland Bureau of Environmental Services. The award honors the plant environmental team's exceptional work in managing and treating wastewater at the site over the past year. “This award is another verification of just how serious our team takes efforts to minimize our facility’s impact on the environment,” says Rick Miranda, plant manager for the Portland manufacturing facility. “Over the past few years, our staff’s environmental management system activities have demonstrated our ability to exponentially decrease all types of waste while at the same time improving sustainable manufacturing practices across the board.” The CertainTeed plant, which manufactures asphalt roofing shingles, is one of only 54 businesses in the area to demonstrate compliance with pretreatment requirements. Specifically the EMS team has maintained an onsite sediment-settling pond, which minimizes pollution and complies with stringent city water regulations. One of the most current projects noted by the city included identifying and controlling other sources of waste and storm water contaminants. The site environmental team also increased the frequency of lot sweeping, tested different filter materials for storm and wastewater outlets, and implemented a weekly site environmental inspection. All have resulted in a significant increase in staff awareness and sensitivity to the environment. The Portland plant recently achieved ISO 14001 certification for developing a formalized environmental management system. The team of 60 employees has also worked together to cut electricity required at the plant by half. In addition, CertainTeed PowerMax® photovoltaic solar News Release Portland Wastewater Award — Page 2 of 3 modules were recently installed on the facility’s roof to assist with reducing further utility reliance. The Portland plant manufactures CertainTeed’s highly popular Landmark™ line of laminated asphalt roofing shingles and accessories, including shingles that are ENERGY STAR®-rated and contribute to NAHB Green Building Standards and LEED® certification. The shingles are manufactured with pre- and post-consumer recycled content, including slag, stone granules, corrugated mixed paper and sludge, which ultimately reduces landfill waste and carbon emissions. More than 90 percent of production waste is recycled and used in asphalt materials for road construction. CertainTeed is home to 10 roofing manufacturing facilities throughout the United States that are fully engaged in reducing the company’s environmental footprint. Collectively, the plants divert more than 250,000 tons of waste per year from landfills. In addition to asphalt shingles, CertainTeed Roofing offers innovative products that significantly boost the energy efficiency of a home, including Landmark Solaris™ solar reflective shingles and the Apollo® photovoltaic roofing system. For more information on CertainTeed roofing products and the company’s environmental initiatives, visit www.certainteed.com. About CertainTeed Through the responsible development of innovative and sustainable building products, CertainTeed, headquartered in Valley Forge, Pa., 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 Portland Wastewater Award — Page 3 of 3 News Release throughout the United States and Canada. Recognized as a 2009 and 2010 ENERGY STAR Partner of the Year by the U.S. Environmental Protection Agency, CertainTeed earned the 2011 and 2012 ENERGY STAR Sustained Excellence Award, the highest level of recognition for outstanding contributions to protecting the environment through energy efficiency. The group had total sales of approximately $3.2 billion in 2011. www.certainteed.com ###