Next-Generation Residential Roofing Materials Will Generate Clean, Renewable Energy

Energy Conversion Devices, Inc. (ECD) (NASDAQ: ENER), the leading global manufacturer of thin-film flexible solar laminates, and CertainTeed Corporation, a leading North American building products manufacturer, today announced a joint agreement to develop roofing-integrated photovoltaic products for the residential market, combining ECD's UNI-SOLAR cells with CertainTeed roofing products. The companies expect these new products to be commercially available beginning in 2010.

Mark Morelli, ECD's President and CEO stated, "This agreement is a significant expansion into a new market for ECD. CertainTeed is clearly an industry leader in building materials and has a broad product offering that can take advantage of the unique characteristics of our flexible, lightweight and reliable UNI-SOLAR cells."

"We are very pleased to be working with ECD to develop solar roofing products for residential roofing applications," said Guillaume Texier, President of CertainTeed Roofing. "The lightweight and flexible design of the UNI-SOLAR solar cells makes them ideal for integrating directly into our roofing products and will help us create aesthetically pleasing solar solutions that blend seamlessly into the homeowner's architecture, while generating clean, renewable energy. This agreement reinforces our commitment to developing sustainable building products, which is in line with our parent company Saint-Gobain's strategy to provide innovative solutions for the construction markets"

About Energy Conversion Devices

Energy Conversion Devices, Inc. (ECD) (NASDAQ: ENER) is the leader in building integrated and commercial rooftop photovoltaics, one of the fastest growing segments of the solar power industry. The company manufactures and sells thin-film solar laminates that convert sunlight to energy using proprietary technology. ECD's UNI-SOLAR brand products are unique because of their flexibility, light weight, ease of installation, durability, and real-world efficiency. ECD also pioneers other alternative technologies, including a new type of nonvolatile digital memory technology that is significantly faster, less expensive, and ideal for use in a variety of applications including cell phones, digital cameras and personal computers. For more information, please visit www.ovonic.com. 

About CertainTeed

Through innovation and creative product design, CertainTeed 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 North America's leading brand of exterior and interior building products, including roofing, siding, windows, fence, decking, railing, trim, foundations, pipe, insulation, gypsum, ceilings and access covers. Headquartered in Valley Forge, Pa., CertainTeed and its affiliates have more than 7,000 employees and more than 70 manufacturing facilities throughout the United States and Canada. In 2007 the group had total sales of more than $3 billion.
http://www.certainteed.com/PressRoom/pressRelease.aspx?id=49

CONTACT INFORMATION:

Mike Loughery
Director of Marketing Communications, CertainTeed
610-341-7328
610-341-7777
mike.b.loughery@saint-gobain.com
http://www.certainteed.com