This is a double glazed top hung window with laminated glazing and has a uValue of 1.3. Please note top hung windows can be used with roof pitches between 15 and 55°. Special springs can be fitted to these windows to allow them to be used with roof pitches between 55 and 75°. If this is required please specify in the 'special instructions' section of the checkout process or give us a call on 01752 692760. This window can be used for emergency fire escape. 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. Top hung roof windows GPL and GPU top hung windows open to any position up to 45°. Opens outwards for an unobstructed view and feeling of extra space. Rotates 180° for easy cleaning from the inside. These windows are intended for higher roof pitches. White polyurethane finish - GPU 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. - - 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. BBA certified.