KF410 Window Systems
The KF410 Window Systems is always a good choice. This window has exceptional thermal and sound insulation values and is available in all of our design styles Studio, Home Pure, Home Soft and Ambiente. Available in UPVc and UPVc/aluminium. It is passive house certified in its standard version. The flush transition of frame and sash in the Studio style allows for rendering of the frame into the brickwork allowing for very narrow frame site line.