EWC Web Site

www.efficientwindows.org

Efficient Windows Web SiteThe Efficient Windows Collaborative (EWC) web site provides unbiased information on the benefits of energy-efficient windows, descriptions of how they work, and recommendations for their selection and use. EWC members have made a commitment to manufacture and promote energy-efficient windows. Take a look to learn more!

The Efficient Windows web site is sponsored by the Efficient Windows Collaborative (EWC) with support from the U.S. Department of Energy's Windows and Glazings Program and the participation of industry members.

Tools

Window Selection Tool
Compare costs for a typical house by selecting a condition, window type, and a city. The annual energy use from computer simulations for a typical house in your city can be compared for different window options.

EWC State Fact Sheets
Regional fact sheets are available for US states. These fact sheets provide a step-by-step guide to selecting energy efficient windows in your area. These fact sheets are available for downloading and viewing on the EWC web site in PDF format.

State Code Fact Sheets
Guides to the residential requirements of the 2006 IECC in each state. These fact sheets are available for downloading and viewing on the EWC web site in PDF format.

RESFEN
RESFEN simuilation program is used for calculating the heating and cooling energy use of windows in residential buildings.



Project: Efficient Windows Collaborative (EWC) Web Site
Principal Investigators: John Carmody
Research Team: Kerry Haglund
Sponsor: Lawrence Berkeley National Laboratory (US DOE)
Status: Ongoing
Web site: www.efficientwindows.org