What are the differences in the opening types of roof windows?
Roof window types
Skylights let fresh air and daylight under the roof. Basically, a distinction is made between roof windows according to the type of opening.
Hinged pivot window
Hinged pivot windows have two opening functions. The primary function is the folding position. The window sash is attached to hinged bearings in the upper part of the window frame. The window sash opens outwards up to 45° degrees. In addition, the window sashes of this hinged pivot window can also be set to a pivoted position – useful for user-friendly cleaning of the roof windows. For this purpose, the window casements can be fixed. This is called the cleaning position.
Pivoting windows
Pivoting windows are attached to the centre of the window frame by pivot joints. When opened, the underside of the window casement swings outwards. The top side swings inwards. Depending on the installation height of the living roof window, the casement is at head height when in the horizontal position. The residing roof window casements can practically be swung by 180° degrees so that the outer pane faces inwards and can be cleaned.
High-swing windows
Another variant of the top-hung roof window is called a high-swing window. The top-swing windows also only open in the swing position but are supported by a spring mechanism in the upper third of the frame. This means that the window casement does not open as far into the room. It turns in a higher range and offers more headroom.
Sliding roof windows
Another less common type is the sliding roof window. As the name suggests, the casements of these roof windows open vertically or horizontally. The window sashes are rail-guided and slide sideways, downwards or upwards when opened. These sliding roof windows are particularly interesting for large openings.