The Glo A5 double pane windows and doors were utilized for their cost-effective durability and efficiency. The A5 Series provides a thermally-broken aluminum frame with multiple air seals, low iron glass, argon filled glazing, and low-e coating. These features create an unparalleled double-pane product equipped for the variant northern temperatures of the region. With u-values as low as 0.280, these windows ensure year-round comfort.