Ultra-thin curved concrete roof created using innovative method

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Researchers from Swiss university ETH Zurich have built a prototype of an ultra-thin, curved concrete roof using innovative digital design and fabrication methods. The self-supporting, doubly curved shell roof has multiple layers, with the heating and cooling coils and insulation installed over the inner concrete layer. A second, exterior layer of the ‘concrete sandwich’ structure encloses the roof, onto which thin-film photovoltaic cells are installed. One day, the residential unit is expected to generate more energy than it consumes. The prototype was 7.5m high, with a surface area of 160m2. The average thickness of the concrete was just 5cm, varying from…

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