Case Study: Commerzbank Frankfurt am Main, Germany The Project • One of the landmarks of the high-rise centre of Frankfurt, the Commerzbank Tower is currently the tallest building in Europe. The striking exterior with its curving corner is topped by a mast which brings the building to nearly 300 metres tall. • A triangular atrium rises through the entire building from the ground fl oor, divided by glass partitions. The atrium opens to the exterior wall at different levels, forming 9 large gardens. • Said to be the world‘s fi rst ‘ecological high-rise’, the building, offices are primarily naturally ventilated with top- up cooling and mechanical ventilation available. • The building uses no traditional air conditioning - at least for 60% of the year - in favour of natural v

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