Fakro Flat Roof Electrical Opening Z-Wave Modular Rooflight & Kerb - 800mm x 800mm Please note this is a triple glazed Z-Wave electrical opening modular rooflight & kerb. Dimensions Modular rooflight size: 800mm x 800mm. Miniumum roof opening: 800mm x 800mm. Maximum roof opening: 850mm x 850mm. uGlazing: 0.5. Upstand: 150mm. Required roof pitch: 2 to 15.Description The DEF-D U6 Fakro flat roof modular rooflights is characterised by exceptional thermal insulation qualities and innovative award winning design. Modern window bonding technology gives a highly aesthetic and innovative design. The Fakro flat roof modular rooflights can be manufactured in a wide range of sizes and is an ideal replacement for old skylights that do not meet current thermal insulation parameters. A specially profiled covering material under the drip cap of the frame facilitates the finishing of the window connection with the roof material. The flat roof modular rooflight can also be mounted on an additional base with a height of 15cm, which raises the window and allows installation e.g. in green or living roofs. To ensure the flow of water from the glass surface of Fakro flat roof modular rooflights, they should be installed with a pitch of at least 2. The DEF flat roof window was awarded with the prestigious Red Dot Design Award in 2016.