A two-story extension and a sports hall were added to the Friedrich Rückert grammar school in Düsseldorf. As part of the overall renovation work, which was carried out by the architects at agn Niederberghaus & Partner, all the technical equipment was also updated. The facade consists of more than 3,000 sqm of our elements. We are particularly proud of our unusual facade solution: in addition to concrete skin panels in twine, we have also produced C-shaped formparts with the twine texture for the first time. These elements were used for the stair towers and make for eye-catching highlights on the building envelope. Photos: Ditz Fejer