Many properties have extensions with flat, or near flat roofs. Keylite have developed a Flat Roof System (FRS) specifically for this application, which allows daylight into the area beneath.
The Keylite FRS provides all the benefits of natural ventilation and daylight. All Roof Windows within the entire Keylite range can be integrated within an FRS. The roof and vertical windows combine seamlessly at eaves level. 0-15°