Albio 256 Thêa is a unique minimal lift and slide system that provides ideal water tightness through EPDM sealing gaskets. It has minimal look with integration of the frame into the wall at the perimeter of the system, visible profile 45,1mm and a narrow hook with visible surface just 42mm. It presents excellent thermal-insulation properties with Uw=1,15 W/m2K and Ug=0,6 W/m2K.