Tilt and turn windows can be opened fully like a casement window (inwards) or they can be tilted from the bottom so that the top of the window is angled into the room, giving a smaller opening for ventilation.Tilt and turn windows let as much lights into your home as possible and make cleaning a straightforward, stress-free task. The innovative tilt and turn mechanism offers wide side opening or a top-fixed opening for ventilation. That means you can maximize airflow when the weather`s fine, and control it when it`s not.Lumei UPVC windows and doors are the highest energy rated windows on the market. They`re not just high quality, beautiful, they`re sustainable too. And for added peace of mind, all of our UPVC windows come with a high security frame with a multi-point locking system.