Construction.367

At the beginning, when the Cossigny2 (Caro,Claire,Denis,Lisa,Liza and Loïc) pushed the agency’s door, they wanted a big straw house for 8 people. Finally, a change of plot later, the Ecossignols moved into a large existing house and a new construction. Straw, earth plaster, dry toilets, phyto-purification, wood stove and participative building site being shared values, we proposed a resilient construction technique corresponding to these values: the PAILLE PORTEUSE. The under-slab insulation is made of clay balls (reduced carbon footprint compared to petrochemical insulators) which makes it possible to combine backfill, drainage and insulation of the concrete slab (inertia). The pre-frames and joinery are made of wood. Flat straw bales form the walls. A plaster coating on the outside protects them. Inside, an earth coating will be carried out in participative building site. Upstairs, on a wooden floor, insulated straw boxes form the roof. The roof is made of tiles. A double-flow ventilation system allows to keep the calories saved by the efficient walls. The earth coating provides hygrothermal regulation and brings comfort in summer and winter. Rainwater is collected in an underground tank. A phyto-purification system takes care of the grey water.