Binné is a medium-sized enterprise in Schleswig-Holstein, Germany. It produces thermal insulation for roofs and waterproofing bitumen felts. Material costs account for approx. two thirds of the total costs of the enterprise. The consultant Martin Lott and the involved employees of the enterprise identified a way to save approximately 200,000 € material costs per year. This can be achieved by an optimal production planning and via processing recyclable residual substances.