ecoSmart Windows

Great Lakes Windows has unveiled ecoSmart replacement windows, available with glass package options that include a 1-inch insulated glass unit on some product styles. The vinyl series has center of glass U-values down to 0.11 in all styles and total unit U-values as low as 0.14 in fixed units or 0.16 in double-hung units. High-density solid-polyurethane insulation in the frame and sash of double-hung and sliding windows provide heat-flow resistance. Complementary sliding door options also are available with the line.