Josefsburg Kufstein Castle

Kufstein, Austria

Retractable Roof

For many years the city of Kufstein wanted to use this beautiful castle more often and in particular more independent of the weather. Kugel und Rein were assigned to design a retractable roof which can be opened like an umbrella.A radial cable stayed system is the primary structural system for this retractable membrane roof that can be closed at the push of a button. In the opened position the membrane is folded and parked in the centre of the roof. The membrane material is a PTFE coated fabric. The determining factors for the choice of this very high grade material were the requirements for durability and quality with very high light translucency.