VELUX GGU FK08 0062 White Centre Pivot Window Triple Glaze - 66cm x 140cm This is a triple glazed window with advanced glazing and has a uValue of 0.89. 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. White polyurethane finish - GGU Perfect for contemporary interiors and white ceilings. Ideal for humid rooms such as kitchens and bathrooms as the polyurethane mould has no visible joins which therefore ensures a moisture resistant finish. Requires less maintenance than lacquered natural pine which makes it ideal for out of reach areas. High quality moulded polyurethane with insulated timber core. - - 62 triple glazing Triple glazed. Laminated inner pane. Toughened outer pane with anti-dew coating and noise reduction. Anti-dew and easy to clean coating to keep windows clean for longer and eliminates the build-up of external condensation. Properties  10 year guarantee on windows and flashings. Suitable for roof pitches between 15 and 90. BBA certified.