Construction.5 2020-09-20by Antony Templier127 Views Written by Antony Templier Detached house R+1. Project Data Place:Châtillon-la-Palud Completion:2012-09-07 Construction:Tunnel (GREB technique) with counterfacing mortar Visitable:No Press photos:No Living Area:130m2 U-Value (Wall):W/m2K U-Value (Roof):W/m2K Categories: Projects France, Detached house R+1.