Production of Argeton facade panels is made in nine steps: Raw material extraction, preparation, shaping, dehydration, colouring, burning, cutting, quality control and packaging. Clay is exploited in clay quarries near the factory. Transport into the factory is followed by the preparation process. It involves milling, mixing, moistening and scouring the clay from foreign particles like stones, and the admixture of construction aggregates. During the extrusion process the clay is pressed through a form(die) and roughly cut to length. During dehydration the soft clay is dehumidified. An engobe or glaze will be applied on the dried square bricks if required. Depending on the clay the square bricks are burnt in a roller kiln at a temperature of 1000°C to 1200°C. The burning process is followed by cutting to the exact length. The square bricks are examined visually and measured randomly in terms of their trueness of shape. Packaging is made semi-automatic with foil and additional packaging materials on pallets. The quality management system meets the requirements of /ISO 9001/norm. Technical data: The technical specifications of the product within the scope of the EPD are listed below. Declared unit: The declaration refers to 1 m² of ceramic façade panels inclusive system-oriented aluminium strapping. The average area density of ceramic facade panels (without strapping) is 40 kg/m², the one of the strapping 0,57 kg/m².