Green Wheat

  • Type de projet : Construction Neuve
  • Type de bâtiment : Résidence étudiante
  • Année de construction : 2018
  • Année de livraison : 2018
  • Zone climatique : [Cfb] Océanique hiver tempéré, été chaud, pas de saison sèche
  • Surface nette : 695 m2
  • Coût de construction : 1 120 000 €
  • Nombre d'unités fonctionnelles : 13 Logement(s)
  • Coût/m² : 1 612 €/m2
  • Coût/Logement(s) : 86 154 €/Logement(s)

Modéré par : Hassan ABOUZID

  • Publié le 17 juin 19
    par gauthier claramunt|France
    Vue 1681 fois

  • Concours

    Green Solutions Awards 2019 - Bâtiments France

    Bas Carbone
    Prix du public
    Prix des Etudiants

    - Bio-based and recycled materials

    Our choices were on the wooden frame, the insulating infill in straw bales, the thermal inertia contribution in mud bricks, the insulation of the cellulose wadding roof.

    - Renewable energies

    The building is powered by the wood boiler on the site of the agricultural college. The photovoltaic system, small capacity because the great intrinsic performance of the building requires very little compensation, and the small wind turbine inserted in the roof, produce electricity.

    - Zero energy building

    True to its DNA, the design team has addressed the issue of positive energy through a drastic process of reducing the need for energy before requiring the implementation of complex, expensive and polluting technological solutions.

    This approach is completed in the second place by natural ventilation devices, geothermal (climatic well used in the summer to passively cool the building, winter to preheat the fresh air), heat recovery on greywater (in the showers). Electricity is produced by a wind turbine and photovoltaic panels. Rainwater is collected in two large underground tanks to feed flushing toilets in the toilets and water the green spaces.

    - Health and comfort

    The hygrothermal comfort conditions have been greatly improved compared to conventional constructions, by exploiting the properties of natural materials. The straw offers an excellent phase shift and thermal damping: indeed only about 5% of the solar heat wave passes through the straw bale, and arrives inside with a phase shift of 10 hours. In addition, the straw and the raw earth regulate the humidity in the interior air thanks to their properties (nature of the fibers and microstructure of the ground). Finally, neither of them diffuse pollutants into the indoor air.

    - Low carbon

    Bioclimatic architecture and natural matter (wood, straw, lime, raw earth) are at the heart of our approach to positive energy. The massive use of wood and straw, both storing carbon, strongly favors the reduction of the project footprint. The contribution of inertia by uncooked mineral matter (raw earth) logically complements our overall approach.



    Lycée Xavier Bernard , 86480 Rouillé France

    Données techniques