Abstract: The present invention relates to a double layered window having indoor and outdoor windows. There is provided a double layered window in which a ventilation device or a ventilation hole is formed in window frame to control temperature and moisture of an intermediate layer, thereby preventing dew condensation, and in a case where the double layered window is installed to an outer wall of a high-story building, the intermediate layer between the indoor and outdoor windows is used as an air pressure buffering space, thereby preventing a problem caused by an air pressure difference.

Abstract: The present invention discloses a window which treats effectively dew-water generated on a window glass to prevent dust, stain and bad smell from being generated and capable of storing dew water in a means for treating dew-water for a certain time to maintain properly an indoor humidity and enhance the air-tightness, water-tightness and adiabatic property. The window according to the present invention comprises a window frame including a vertical frame for supporting a vertical side of a window glass and a horizontal frame for supporting a horizontal side of the window glass; and a dew-water treating means including a dew-water flow passage provided on the horizontal frame and a drainage trap provided on the window frame for discharging dew water introduced from the dew-water flow passage and stored therein to an outside.

Abstract: The present invention relates to a double layered window having indoor and outdoor windows. The present invention provides a double layered window having horizontal cross-ventilation means installed at an upper end portion and/or a lower end portion of a vertical window frame so that air may flow in spaces defined between indoor and outdoor windows of each region through the horizontal cross-ventilation means without installing an openable window to all of the regions divided by the vertical window frame or without opening all openable windows.

Abstract: The present invention relates to a double layered window having indoor and outdoor windows. There is provided a double layered window in which a ventilation device or a ventilation hole is formed in window frame to control temperature and moisture of an intermediate layer, thereby preventing dew condensation, and in a case where the double layered window is installed to an outer wall of a high-story building, the intermediate layer between the indoor and outdoor windows is used as an air pressure buffering space, thereby preventing a problem caused by an air pressure difference.

Abstract: The present invention discloses a window which treats effectively dew-water generated on a window glass to prevent dust, stain and bad smell from being generated and capable of storing dew water in a means for treating dew-water for a certain time to maintain properly an indoor humidity and enhance the air-tightness, water-tightness and adiabatic property. The window according to the present invention comprises a window frame including a vertical frame for supporting a vertical side of a window glass and a horizontal frame for supporting a horizontal side of the window glass; and a dew-water treating means including a dew-water flow passage provided on the horizontal frame and a drainage trap provided on the window frame for discharging dew water introduced from the dew-water flow passage and stored therein to an outside.