The new headquarters building for KfW Bank in Frankfurt has a bespoke double-skin facade constructed using Wincona's aluminium unitised curtain walling. The company claims this has contributed to the building becoming one of the world's most sustainable office buildings, with a primary energy consumption of 98kWh/mz a year. The exterior has a skin of fixed tempered glass panels and colourful ventilation "flaps" in red, blue and green, and the internal facade has alternating opening and fixed glazed units. The Council for Tall Buildings and Urban Habitat has awarded the KfW project "World's Best Tall Building".
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