The tilt & turn window does both things; it tilts open at the top to allow for secure ventilation and it opens wide at the side for easy external glass cleaning. Not yet well known in Australia the tilt & turn window is already a major work-horse in Europe. Tilt & turn windows open inwards.
In the tilt position the window opens inward just wide enough to give effective ventilation and not wide enough for children or others to pass through. Knowing that many families leave their windows open when shopping, with tilt & turn windows it is reassuring to know that the home is secure.
A very handy feature of tilt & turn windows is the ability to open them wide inside. In this position it is usually simple and easy to clean the outside of any adjacent glass as well as the outside of the opening sash.