The public banking area was redesigned with the same quality of openness. The outcome is a new building type – the banking store – with gastronomic, shopping, administrative as well as banking facilities.
To ensure that the cross-sections of the existing vertical service shafts remained adequate for modern installations, it was necessary to optimize the energy efficiency of the facades and to convert them into a double-skin construction. The high-rise block has a single-glazed outer skin that provides protection against the weather. The internal facade layer consists of room-height double glazing with opening lights that allow individual control of the natural ventilation. As a result, it was possible to reduce the back-up mechanical ventilation to a minimum. Sunshading is provided by aluminium louvred blinds in the facade corridor. In contrast, the ventilating facade of the plinth structure has a double-glazed outer skin. Here, the facade corridor is used as an air-extract duct.






