Tilt N Turns & Top Swings
Alternatively, the 'tilt and turn' windows comes into its own where outward opening could cause an obstruction or hazard or where the exterior window would be difficult to access for cleaning. This window can both 'tilt' for ventilation and then will open inward, making it very easy to clean and maintain.
Top swing windows are traditionally aimed at refurbishment projects where there is a high rise element, and a requirement for cleaning to be carried out safely from the inside of the building.
Tilt and turn windows and top swings offer similar features, notably the fact that they open inwards, unlike traditional casement windows, and have found favour with many architects and clients who have projects for which an open out window is not suitable.