The new ZNC (Zola No Compromise) window features a slim 3-to-4.5-inch profile, concealed hinges, and powder-coated aluminum “rainscreen cladding” mounted on rails over rigid insulation. The ZNC is PHIUS certified and, according to the maker, is the first window on the market available with R-15 quad glazing. Available in several configurations in sizes up to 8x10 feet (WxH). Priced by custom quote. zolawindows.com
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