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Medium in height, but maximum savings
8/5/2010

With the design chosen for the West Arcade building, the KfW Banking Group has created a new landmark at the entrance to the city of Frankfurt, and it is one that sets new standards in numerous respects. The choice of colors, and they reveal the hand of the architects at Sauerbruch Hutton office in Berlin, not to mention the flowing geometries of the façade are special characteristics of the outside of the new West Arcade building. The façades are aerodynamically designed to avoid wind incidence, air turbulence and the resulting heat loss.

Another outstanding characteristic of the office building is its energy efficiency. The new West Arcade building sets one of the highest ecological standards in the world for office buildings, with annual primary energy consumption levels of under 100 kWh/m² achieved through its use of technical innovations such as building segment activation, geothermal heat exchangers, heat recovery systems and temperature, lighting and sun-blind control. The dual-skin, dynamically controlled "compression-ring facade" provides natural ventilation regardless of the weather conditions, strong heat insulation and effective solar protection while at the same time letting in plenty of daylight.

www.sauerbruchhutton.de

West Arcade building of the Frankfurt KfW Banking Group | photo © KFW
West Arcade building of the Frankfurt KfW Banking Group | photo © KFW
Compression ring facade: The double skin facade of the Westarkade is built as a compression ring in order to balance the wind forces at the windows. Photo © Sebastian Reuthal, Stylepark
Photo © Sebastian Reuthal, Stylepark
graphic © KFW / Josekdesign
Facade modules: Tilt and turn windows with insulated glazing. The windows are planned by the architects of sauerbruch hutton and manufactured by Wicona. Photo © Sebastian Reuthal, Stylepark
The result: The dynamically controlled windows ventilate the office space two thirds of the year without any drafts and any loss of temperature. Photo © Sebastian Reuthal, Stylepark
Photo © Sebastian Reuthal, Stylepark
Graphic © sauerbruch hutton