This is a triple glazed centre pivot manual window and has a uValue of 0.81 when installed with a EHV-AT Thermo flashing kit. Triple Glazed Centre Pivot Window. Centre Pivot hinge is located slightly above centre axis. BBA Approved. topSafe security and safety offering reinforced hinge and keep together with a steel slat to the lower part of the sash to achieve at least class III safety as per EN13049. External aluminium colour reference RAL7022. Natural wood frame. Internal finish 2 layers of clear lacquer. Bottom placed handle. Glass construction 6-18-4-18-6.2mm with 38dB reduction and external tempered glass internal low-E silver oxide coated producing a U-Value of 0.81W/mK (glass U-Value 0.5W/mK). Roof 15 to 70 pitch. The glazing unit is set in a specially designed sash frame. It has wider wooden profiles, compared with a standard window. This design minimizes the phenomenon of thermal bridges and provides better insulation of the window. FTT Thermo U6 window with a heat transfer coefficient of Uw 0.81 W/m2K. Windows opened via pivot with hinges positioned above the window mid-height, thanks to which even a tall person can comfortably stand upright by the open window. Properties Window uValue: 0.8 W/m2K. Glazing uValue: 0.5 W/m2K. Acoustic insulation Rw: 38dB. Inert gas filled panes: krypton. Glazing: 6HT-18-4H-18-33.2T. Handle: elegant. Features Special roof windows intended for energy-efficient and passive construction. Easy washing the external glass and fastening awning blind thanks to a special bolt which blocks the sash when rotated through 180. Increased burglary-resistance “ topSafe system. Special window structure utilising wider sash frames and quadruple sealing system.