Renovating an old building requires experience and careful planning, since the exterior cladding is the one that is designed to "swallow" all the deviations that exist in the building and to hide all external disturbances, such as air conditioning ducts, pipes, etc. The building is undergoing a "facelift" with regard to its external appearance. The cladding, which is applied away from the plane of the foundation of the walls, makes it possible to sew an optimally adapted "suit" to the building and leaves no sign that the building is an old building.