Keylite Vertical Bi-Lite (VBL) Roof Windows are the ideal way to maximise the light and ventilation into any room. Keylite VBL roof windows are available in a variety of styles and combinations. Arranging your Keylite Roof Windows to incorporate a Keylite VBL creates a larger glazed area, and increases light into your living area.
The roof and vertical windows combine seamlessly at eaves level.
