A product now in development The Thermal Précoffré® wall comprises 2 thin reinforced concrete walls with insulation incorporated in the inner side of the external face of the wall. The construction therefore benefits from insulation from the outside. • wall thickness: from 30 to 40 cm • panel thickness: from 6 to 7 cm • weight: from 280 to 350 kg/m2. • concrete quality: at least C 40/50