Since ancient times, the use of stone in the facades, locally procured and imported, was index of prosperity and power. The purchasers did one’s best for the supplying of increasingly rare and very precious material, for workmanship and decorations, to impose an image of prestige and to leave a trace for the future generations.

It can be seen how during the medieval period, with the barbarian invasions, it is confirmed the previous theory: with the disruption of trade routes and with the general poverty, the stone façades building is very rare and at the same time very sought. The ancient monuments are destroyed and their materials are reused, the masonry are fake-stone plastered and the natural stone is used only for items of particular value (official badges, portals and door frames) and for all-accomplished sculptures .

The churches façades and palaces of power were generally build of a varied nature of masonry (bricks, blocks of stone) covered with stone material.
The restoration intervention of the stone façades follows all phases of the standard practice of restoration. It start up with the operation of pre-consolidation and securing of parts in danger of collapse or breakdown. Later, the phase of cleaning follows, including sanitation and disinfection, removal of various kinds deposits and over putted substances, conversion of chromatic alterations to restore the old appearance of the manufactured surfaces.

If necessary, it carries out a surface consolidation of micro-cracks or detachments, or a chemical consolidating in order to give back the compactness to the material. Finally, wherever possible and efficient it protects the entire surface with water-proof repellents and coatings products; or with a patina called “scialbatura”, always trying to taking care of the final aesthetic presentation.