• Series of windows of positive energetic balance and energy efficiency class "A", which means that the heat input from solar radiation exceeds the amount of heat energy dissipated from the inside through windows.
  • Sash and frame are made of steel reinforced six-chambered profile.
  • WK1 class hardware with Hoppe Secustic handle.
  • Double TPE and EPDM seal.
  • Glazing made of double glass units decreasing heating costs.