What lies behind a wall hung WC. First off the timber works set up the shape of the room and accommodate the fitting of plumbing works. The ‘concealed cistern’ unit is installed as seen (blue frame) All will be plastered then painted/ tiled.You can see the chipboard roof base with the joists in place. Insulating foam will be sprayed in these cavities with a final thin insulating layer of sheeting. Following that, the area will be plastered over. The WC will be hung on the two protruding metal bars and eventually the flush buttons will be added at the end. Finished room coming soon!