Crystal Window & Door Systems' improved Aluminum Series 1450 Out-Swing and Series 1460 In-Swing Terrace Doors are constructed to be well-suited for high-rise and wind-prone installations. The door offers glazing of either 1” or 1-¼” dual- or triple-pane tempered insulated glass units, with low-E coatings and gas-filling options for further energy efficiency and sound attenuation. The aluminum frame is finished in durable, environmentally sustainable powder coat paint, to either AAMA 2604 or 2605 performance standards. Architects and property owners can choose from a broad palette of standard and stock colors, two-tone frame colors, and any custom color desired.