11 Aug '11, 2pm

Green Building Q&A: Hunting for high SHGC

I am on the quest (again) to find triple glazed windows with a low U-value but high SHGC (equal to or greater than 0.35) - manufactured in the US. Just got off the phone with Great Lakes Windows. They mentioned a brand new glass package that may give me the SHGC I want: Guardian IS-20 http://www.climaguardglass.com/ProductSolutions/EnergyEfficientProducts/... By following some of the Q&A's as well as GBA blogs, I know of Guardian 75/68, which provides a high SHGC. But I have never heard of Guardian IS-20. If anyone has, and/or if anyone has an option on the Guardian IS-20, I would love to hear about it.

Full article: http://www.greenbuildingadvisor.com/community/forum/energ...

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