Window performance

Here are the published numbers for the windows I've installed so far. Low numbers are better.

	Type	U-factor	Solar
Pella	Fixed	0.27	0.31
	Casement	0.30	0.28
Certainteed	Glider	0.38	0.28
	Awning	0.38	0.25
Andersen	Glider	0.35	0.33