Photo © Anja Thierfelder
Photo © Anja Thierfelder
Photo © Anja Thierfelder
Photo © Anja Thierfelder

Posttower Deutsche Post AG

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The representative administration building has is located on a site close-by the river bank of the Rhine River and is composed of a 40-story, fully glazed office tower and a pedestal building. High demands were put on the new building concerning flexibility, work space quality reached by natural illumination and ventilation as well as usability of an individually manageable heating and ventilation system and windows. The claim for minimizing the running costs for heating, cooling and ventilation by using renewable energy sources always had priority. The elliptical building corps with its east-west-axis is situated in a park-like environment of the Rhine’s flood plain which entails a high groundwater level.

To realize these demands, the following conceptual measures were realized:
Double-skin façade with reflective solar Protection | Building component activation of the massive ceilings | Cooling via groundwater wells fed by the Rhine River | Allow individual window ventilation to the double-skin façade | Condition supply air to the offices via decentralized supply air units integrated into the façade | Utilization of waste heat by directing exhaust air through the atria

Murphy/Jahn, Chicago

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