Window types

Version	Function
Turn-and-tilt window	A turn-and-tilt window can be turned or tilted open depending on the position of the window handle.
Tilt-before-turn window	A tilt-before-turn window can be tilted or turned open depending on the position of the window handle. It can only be opened in the turning position with the key.
Tilt window	A tilt window can only be tilted.
Comfort window	A comfort window can be turned or tilted open depending on the position of the window handle. The window handle is attached horizontally to the bottom of the sash. A comfort window is usually equipped with a turning lock.
Double sash window	A double-sash window has two sashes which can be opened one after the other.
Triple sash window	A triple-sash window has three sashes which can be opened one after the other.