The product (windows) are working very well. Summer heat and glare into the house were both noticeably better. Downside: the "cladding" on the outer window frames does not conform to the original frame design well at all. The cladding looks good, and well seals the window from the elements, however, the install resulted in a far simpler (singe level of trim) vs. the original design that has up to levels of frame from the brick edge to the window. We will be installing more windows, but I would need to have the install emulate the lines of the original window frames. I don't know what recourse I have for the current install.
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