by jbs060210 c3 — June 4, 2010—The U.S. Department of Energy today announced on May 27 the launch of the Highly-Insulating R-5 Windows and Low-e Storm Windows Volume Purchase Program, as part of a multi-year integrated strategy to transform the market for high-efficiency windows.
The initiative will facilitate the broader deployment of these windows by pairing manufacturers with buyers looking to purchase large volumes of windows and by setting performance expectations for two new types of energy-efficient windows, says DOE. This will provide support for window manufacturers to help overcome the initial costs associated with producing windows at an even higher efficiency level while connecting volume buyers with pre-cleared suppliers.
The program includes both Highly-Insulating R-5 (U value 0.2) Windows and Low-e Storm Windows. When replacing windows or building a new building, R-5 Windows can reduce heat loss through the window by 30 to 40 percent compared to a typical R-3 window available today, notes DOE. In situations where full replacement is not an option, Low-e Storm Windows, which fit over existing windows, can be used to reduce heat loads by up to 20 percent.
The savings for both R-5 windows and Low-e Storm Windows are a significant improvement over products available today—and many meet DOE’s price premium target of less than $4 per square foot, says the Department. With higher energy performance and lower purchase prices, windows can become an even more cost-effective measure for building retrofits.
Volume purchasers of windows, including government agencies, builders, energy retrofitters, renovators, and weatherization providers, will gain online access to window sellers whose products are certified to meet the High-Insulation R-5 and Low-e Storm Windows specification. Buyers can review size and price ranges and then connect directly to the vendors’ Web sites to purchase. The program currently includes more than 30 suppliers.
