The Berlin School of Economics and Law is a university of applied sciences with more than 11,000 students. For the renovation of the auditorium, we supplied large-format acoustic climate sails measuring 2900 x 4600 mm. The wide, unperforated edge reinforces the uniform appearance of a sail. However, a sail consists of only two elements, which were assembled into a unit on site using our tongue & groove technique. Thanks to the precisely fitting tongue & groove system, there is no stray light and the continuous perforation makes the central edge almost disappear. The surface of the sails in metallic colour RAL 9006 matches the aluminium frame of the pendant luminaire. The pendant luminaires hang approx. 20 cm below the sails and the cables have been mounted directly on the sail, the enormous bending stiffness of our panel ensures perfect evenness.