Aluminum Double Pane

The A4 aluminum double-pane window from Glo European Windows provides double-pane glass with a thermally broken aluminum frame for cost-effective durability and clean architectural lines. The Glo A4 series double-pane window has an R-value between 4 and 3.4 and a solar heat gain coefficient between 0.28 and 0.60. Glo’s double-pane windows manage to outperform most triple-pane windows while offering a lower price point. The windows come with four handle options and 14 standard color options with a powder coat finish, while also offering more than 300 custom color options. Additionally, the A4 series comes in tilt turn, French, and fixed window styles.