Construction.696 2020-09-20by Antony Templier161 Views Construction.696 Written by Antony Templier Detached house of 80 m² living space with a floor area of 120 m² and an attic floor. Project Data Place:Marval Completion:2017-10-01 Construction:Tunnel (GREB technique) with counterfacing mortar Visitable:No Press photos:No Living Area:80m2 U-Value (Wall):W/m2K U-Value (Roof):W/m2K Categories: Projects France, Detached house of 80 m² living space with a floor area of 120 m² and an attic floor.