Contents
Why energy-efficient windows?»
Improved Performance
What are the basics?»
Apply Proper Details and Practices»
What tools can help design and selection?»
What tools can help with window design and selection?
Window Selection Tool »
The Efficient Windows Collaborative provides a Window Selection Tool that compares window energy performance in over 90 U.S. cities for a wide range of windows and skylights. The Tool also links consumers to participating manufacturers and their products.
RESFEN Energy Calculation Tool »
Using a computer program such as RESFEN to compare window options is the only method of obtaining reasonable estimates of the heating and cooling costs for your specific climate, house design, and utility rates.
Window Design Information »
Extensive information is available to assist designers in understanding the techniques to maximize energy efficiency and the implications of window orientation, area, shading and other design features.