Allergosan Pharma Company Graz AUSTRIA 137 Structurally, the buildings are based on con- crete frames. However, the warehouse has a wooden roof. The roof provides space for more than 1,000 m2 of photovoltaic panels. In order to keep the warehouse floor free of obstacles to the movements of the logis- tics system, the number of supports was reduced to the absolute minimum. The roof is formed by 48.5 cm high KIELSTEG ele- ments with spans of 13.5 m. The warehouse is a highly flexible building. Changes in the logistics processes due to changes in market and customer demands, can be implemented without triggering any major investments for alteration of the building. Allergosan has been a centre of research and development for medicinal products from natural substances for almost 30 years. Today it is a major Austrian centre of microbiome research, and deeply committed to development of probiotics. Founded 25 years ago, the company has now built its new headquarters in Graz, in a location on the southern edge of the city. The building is a complex of three main sec- tions. At one end is a 5-storey, almost cubic block with a dark mirrored facade. Attached to this block is a contrasting, elon- gated, 3-storey, section clad in white, which houses the conference centre. At the other end, the warehouse is the largest section by area, at 2,185 m2, and forms a counterweight to the main block. The designers Architek- tur 64 ZT GmbH, from Gleisdorf, created an impressive concept that translates the val- ues of the company into a built narrative, with clarity and functionality.