I found this awesome, independent website that has breen a great resource in my window shopping. It has everything from a window selection tool, a very thorough glossary, window technology page and individual state resources and much much more. You can visit it at:
http://www.efficientwindows.org/index.cfm I actually feel I have the upper-hand for the first time since beginning to search for replacement windows.[/b]
Everything you need to know... but didn't know to ask!
Efficient Window
This website is great, especially the glossary.
800-399-4623