The Keylite Roof Window 1140 x 780, manufactured by VELUX, is a high-quality unit with a manufacturer warranty of 10 years. This glazed roof window, made with laminated glass, features a white interior and a grey exterior. With a double-pane glazing type and one lock, it is designed for new construction projects and is a perfect addition to any home for natural light and ventilation. Made in the United Kingdom, this roof window combines durability with a sleek design to enhance any room. x4 available