Window Opening Types

Fixed Light

All Rationel windows can be fitted with modern energy efficient double glazed units. This makes it possible to design buildings with large sections of glass, whilst keeping energy use and costs to a minimum. Our Fixed Light windows are ideal wherever maximum internal light is required or for glass sections that overlook gardens or attractive views.

Top Guided

Top Guided windows are a simple, elegant and user-friendly design. Opening is controlled by tracks and slides. As the window opens, the top of the sash slides downwards as the bottom of the sash opens outwards. Adjustable friction ironmongery allows an infinite choice of open positions.

Side Guided

Side Guided windows are controlled by tracks and slides that allow the window to be fixed in any open position. However, when opened the hinge side of the sash moves toward the middle to create an opening that allows the glass to be cleaned from the inside.

Windows over 708mm wide are fitted with an adjustable handle controlled friction brake.

Side Guided windows can also be used for emergency exits.

Side Hung

Like Top Guided windows, Side Hung windows are also controlled with tracks and slides. On windows over 588mm wide, the handle controlled friction brake allows the window to be fixed in any open position. Side Hung windows can also be used for emergency exits.

Tilt & Turn

Tilt & Turn windows function in two ways. They are hinged from the side and open inwards. Or for ventilation the sash can be tilted in at the top. Tilt & Turn windows can be cleaned from the inside.

Tilt & Turn windows can also be used for emergency exits.

* Not available in Patus/Patus+

Fully Reversible

In everyday operation the Fully Reversible window functions as a Top Guided window. However, an ingenious mechanism makes it possible to turn the sash through 180 degrees to clean the glass from the inside.

* Not available in Patus/Patus+