One special feature of this building is the ingenious lighting concept that, for the most part, avoids visible artificial light spots beneath the ceiling. Instead, indirect incident daylight from above is ensured by the glass roof – located in the centre of the building, measuring 2,500 square metres and consisting of 484 slightly tilted elements – and a pergola-style roof structure made from white painted steel placed on an elegant support colonnade arranged some two metres above.. For a perfectly coordinated incidence of light from the south, a total of 115,000 bevelled aluminium cylinders are integrated into the “screen” that seems to float above the building, directing approximately 20% of daylight into the building.
Adjacent to the steel, centred glass roof structure with its 484 individual elements, there were also closed-off roof sections measuring approximately 4,200 square metres in total surface area in the sometimes slightly lowered side wings of the building that needed to be taken into account. To provide effective protection against penetrating moisture, HERTALAN® EASY COVER EPDM sheets were applied above the insulation. The connection to the glass roof structure, also created with a HERTALAN® EASY COVER EPDM waterproofing product, required a special solution