Schlank und effizient

Voellinger, Thierry
January 2011
werk, bauen + wohnen;Jan2011, Issue 1/2, p34
Trade Publication
In many places in Switzerland housing space is a valuable commodity on account of the expensive building zones. So that not more of it than is necessary is consumed by thick walls, a group of researchers made up of architects and engineers at the Ecole Polytéchnique de Lausanne (EPFL), in collaboration with partners from industry, are developing a superslender wall element made of concrete. Thanks to an innovative combination of classic insulating materials with the highly efficient VIP (Vacuum Insulated Panels) these will have excellent insulation values. The sandwich construction is made up of a loadbearing panel, the new combination of insulating materials and an external cladding of coloured concrete. This composition allows the wall thicknesses to be determined in a concrete and binding manner at the very start of the design stage, which is important for the prefabrication process. A villa currently under construction represents a synthesis of the research work so far and a test in a real situation. The façades of the house are articulated into large elements with a length of 7.5 metres. This dimension is the ideal length for elements for largescale housing construction. At the same time prefabrication of a large panel also allows shorter production times. It reduces the number of production and connection details required and simplifies transport and handling. The completed construction will show whether the predicted potential of the new concrete element can be fulfilled and whether the construction principle developed can prove itself. If this is the case it will be possible to use it in the future for larger buildings also.


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