For the glass roof above the atrium of Berlin's DZ BANK, designed by world famous architect Frank O. Gehry, Josef Gartner GmbH was looking for a competent partner. Gartner specialises in construction of aluminium and glass façades. The arched Atrium Skylight covers a total area of 19,375 sq.ft. and is supported by a structure of altogether 2,490 bars and 826 crosspoints made of high-grade steel for approximately 1,500 clear glass panels of different sizes. A challenge that had a significant impact on the further development of toolcraft in the late 1990s and laid the cornerstone for other major projects.
Since each of the glass panels has a different triangular shape, each of the crosspoints is also a unique element. However, the customer wanted all crosspoints to be supplied by one single-source manufacturer. The specified material was a corrosion and acid resistant high-grade steel.
The size of the projects seemed to shake the art of the possible. Each crosspoint had to be cut in different dimensions from a high-grade steel plate, followed by a milling process – nonetheless in consistent quality and precision for mounting the fastening disks for the glass panels.
The manufacture of the crosspoint elements for the atrium freeform turned out to be a key project for toolcraft's further development. Tackled with passion, and implemented with the solution expertise that has become typical of toolcraft.