Four-leaf asymmetrical vertical division 30-70 with a movable post

Vertical asymmetric division 30-70 with a movable mullion windows types-of-windows four-leaf vertical-asymmetric-division-30-70-with-a-movable-mullion

Four-leaf windows with asymmetric vertical division czteroskrzydłowe with a movable mullion. Top wing 1/3 of the total height. The lower wing 2/3 of the height. The movable mullion is one of the elements of the window structure, permanently connected to one of the sash frames. This makes it possible to divide the window with the sashes closed, but after opening them, it allows free use of the non-divided space.