Tiltandturn

Tilt-and-turn windows are a type of inward-opening window that combines two operating modes in a single sash: a ventilation position and a full-opening position. The sash is hinged on one side and connected to a multi-point locking mechanism. In the tilt position, rotating the handle about 90 degrees tilts the top of the sash inward while the bottom edge remains inside the frame, allowing secure ventilation even when occupants are away. In the turn position, rotating the handle about 180 degrees releases the hinges and the sash swings inward for easy cleaning of the glass from inside, as well as a wide opening for cleaning or in some cases emergency egress depending on local code.

Frame and glazing: typically made in uPVC, timber, or aluminum, often with insulated glazing units (double or triple glazing) and thermal breaks to improve energy efficiency. They are common in Europe, including Germany, Poland, the Netherlands, and the Nordic countries, and have become popular in modern renovations and new-builds due to their combination of ventilation, ease of cleaning, and robust sealing.

Advantages: flexible ventilation without a large external swing, easy cleaning from inside, good security when closed or tilted, strong weather sealing, and wide opening in turn mode for access. Limitations: higher cost than standard casement or fixed windows; heavier sashes require sturdy frames; hardware wear over time.

Safety considerations: locking mechanisms with multi-point locking; restrictors to prevent accidental opening by children; safety glazing in certain configurations; full-turn mode may satisfy egress requirements in many jurisdictions when properly sized.