I'm in the planning stage of building a sips home. I thought Anderson 400 series windows were a no brainer but my builder is pushing Kohler (Kohltech?) triple glazed kryptonite filled windows very hard.
My quick search of the NFRC website seems to indicate that the two companies windows have fairly similar ratings.
Personally I have a hard time with the asthetics of vinyl (on the inside) windows and want the Andersons, but my builder is an EnergyStar builder and claims I'll pay a high price (in efficiency), and he hasn't been wrong yet.
Has anyone out there had any expearience with Kohler windows? They seem expensive, too.
Thanks