New brochure highlights insulating benefits of Intercept ‘Warm-Edge’ spacers by PPG

PITTSBURGH, April 4, 2007 – PPG Industries’ performance glazings business has introduced a brochure for homeowners and window dealers detailing the insulating and energy-saving advantages of windows made using the Intercept “Warm-Edge” spacer system by PPG.

The Intercept Spacer System, introduced in 1992, has become one of the window industry’s most trusted systems for insulating glass (I.G.) units. It is now at work on more than 600 million residential windows in North America, surpassing any other insulating spacer system.

The key to the performance of the Intercept Spacer System is its U-channel design, which functions as a thermal barrier, reducing heat loss through the window and maintaining the structural integrity of the I.G. unit throughout its lifetime.

Under normal weather conditions, I.G. units expand and contract according to temperature changes. In ordinary I.G. units, the sealant that holds components together absorbs the stress of this ongoing expansion and contraction, eventually leading to the failure of the sealant and the loss of the window’s insulating integrity.

With the Intercept Spacer System, the U-shaped metal spacer expands and contracts instead, enhancing the stability of the sealant and allowing the I.G. unit to maintain its original insulating capabilities.

When used in conjunction with low-emissivity glass from PPG – such as Sungate 500, Solarban 60 or Solarban 70XL glasses – I.G. units made with the Intercept Spacing System can improve the energy efficiency of residential windows by 30 percent or more.

To learn more about the Intercept insulating spacer system or to order a copy of the new brochure, call 1-888-PPG-GLAS (1-888-774-4527) or visit

PPG is the largest flat glass manufacturer in North America, supplying glass for commercial and residential construction markets, products for industrial and specialty applications, and windshields and windows for automobiles, aircraft and other vehicles.

About PPG
Pittsburgh-based PPG is a global supplier of paints, coatings, chemicals, optical products, specialty materials, glass and fiber glass. The company employs more than 30,000 people and has 125 manufacturing facilities and equity affiliates in more than 20 countries. Sales in 2006 were $11 billion. PPG shares are traded on the New York and Philadelphia stock exchanges (symbol: PPG). For more information, visit

Intercept, Solarban and Sungate are trademarks of PPG Industries.


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Robert J. Struble
PPG Performance Glazings