The combination of modern PVC-U profiles with an aluminium cover profile unites the advantages of two highly different materials: The optimal thermal and sound insulation of the PVC-U window meets the noble appearance of aluminium in an almost unlimited choice of colours: The surface of the cover profile can be anodized in all RAL colours or optionally powder-coated. The inside of the window can be selected independently of this - it can remain white or be foil-laminated as desired.