An ultra-low energy house learns to fly: Single-family residence in Marly
Location: Marly-le-Roi, Paris (FR)
The driveway leads from the street directly down to the basement level, where the home owner's car is parked and where stacks of firewood are stored. From here the 140-square-metre four-person building continues upwards to the higher storeys, namely by means of a concrete staircase at the basement level, followed further up by slender stairs encased in a solid balustrade folded from a single piece of metal. The central inset wood-burning stove that meets the whole house's heating requirements is situated on the ground floor along with three rooms: a kitchen and a rather intimate living room on the one side, and on the other – two steps up – the dining room, which runs the entire length of the building and which opens up to a terrace facing onto the street. The parents' bedroom and the two children's rooms in the attic storey offer greater personal privacy and are provided daylight by narrow horizontal window bands and skylights.
Raw materials on the inside of the house are generally left exposed or simply whitewashed – as in the case of the walls in solid wood. On the exterior, the facades and roof are constructed in 94 mm cross-laminated timber supplied by an Austrian firm, whereby the outside of the walls additionally have 240 mm wood fibre insulation and 30 mm cladding in larch. The roof is insulated with 320 mm cellulose between I-beam joists and has a standing seam zinc cover.