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Aria, Mediatheque and Concert Hall in Cornebarrieu - France

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Photo taken from (Uploaded by Philippe Madec)

The contest was aimed at a BBC 2005 Effinergie consumption level. We have reached the Passive level for the Media Library.


The building, taken off the ground to mark the wet nature, is part of the landscape along an existing dike. The accessible and sloping roof wraps around the volumes and offers a panoramic reading garden.  The use of traditional materials of agricultural architecture, wood and mud perfectly integrate in the place.  Inside, the two programs are articulated by three halls, which can be combined in a single space of conviviality.


The natural hybrid ventilation provided by chimneys / sheds allows the natural lighting of the media library.  The backdrop of the village hall opens largely onto the landscape, which then becomes the backdrop.


The design of the ventilation is adapted to the two different programs and uses, in order to minimize the systems. The ventilation of the room is performed by a central dual flow to minimize lost calories. The media library and the hall are naturally ventilated by a system of chimneys / sheds which allows the night refreshment for the summer comfort but also the natural lighting and to propose a ubiquitous natural light.


A high-performance envelope isolates all volumetrics from the outside, minimizing thermal bridging and reducing the need for technical systems. Heating requirements are below 15KWh / m2.year. The building is therefore said to be passive. The building is heated by a pellet boiler. The use of wood energy helps to reduce CO2 emissions.




  • Primary energy need : 103,00 kWhpe/m2.year
  • Primary energy need for standard building : 214,00 kWhpe/m2.year
  • Calculation method : RT 2005
  • Final Energy : 193,00 kWhfe/m2.year




  • Envelope U-Value : 0,33 W.m-2.K-1
  • Air Tightness Value : 1,70

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