Tilt and slide uPVC window from Kommerling is a type of window that is designed to tilt open for ventilation or slide open for easy access to the outside. The tilt and slide uPVC window consists of single or multiple sashes that can be tilted inwards from the top or slid horizontally along tracks. The tilting function of the uPVC window allows for controlled ventilation, as the window can be opened slightly at the top while the bottom remains closed for security and privacy. This also prevents rain from entering the room while still allowing fresh air to circulate. The slide function of a tilt and slide window allows the user to fully open the window horizontally, which is particularly useful when cleaning or for accessing exterior spaces like balconies or patios.