U-Factor, SHGC, and VT on Windows

What is the specific U-Factor, SHGC and VT on the iHouse Andersen windows?
Do you offer a choice, for people who live in colder climates who want a low-e window with a HIGH Solar Heat Gain Coefficient, to maximize use of solar gain in the winter?
23 December 2011 | greenotter






January 4, 2012