This is a double glazed solar electric window with laminated glazing and has a uValue of 1.3. VELUX New generation features More daylight: up to 18% larger pane area. Slim profile: slim profiles and larger pane means more glass and less frame. Thermo technology: innovative use of high performance insulation material. More comfort: a more modern and attractive design with excellent ventilation and operation control. Control bar: new design of the control bar with functionality icons. Exterior design: improved exterior finish with a softer and more discrete expression. Click-on covers: fewer screws with the new click-on covers. Top cover: slimmer top cover. VELUX Solar INTEGRA roof windows Powered by the sun. PV solar cell on external window frame requires direct exposure to sunlight. No need to plug into a power supply which makes installation even quicker and easier. Built in rain sensor closes the window automatically in the even of rain. Provides useful remote opening which is ideal for hard-to-reach windows. Battery back-up avaliable. Lacquered natural pine finish - GGL Ideal for a traditional interior. High quality natural pine. Protective triple coat clear lacquer helps to preserve the timber of the window. - - 70 laminated glazing 6.4mm laminated inner pane offers additional safety. Offers improved noise reduction compared to - -34 and - -59 glazing. 4mm toughened outer pane with low-E coating. Properties 10 year guarantee on windows and flashings. 3 year guarantee on all electrical products and accessories. Suitable for roof pitches between 15 and 90°. BBA certified.