Wall Mosaic

The existing mosaic surface is uniformly covered by an incoherent, or partially coherent, deposit of atmospheric particulate due to the deposit of the material carried by the percolation of rainwater coming from the roof. The detachment of the preparatory layers is the most severe and widespread morphology of damage, involving all mosaic surfaces.


The restoration works on the wall mosaic started in March 2015; a group of specialists started the survey of the wall mosaic in the nave and performed preliminary evaluations and tests. During the survey, a new fragment of angel on the north wall between the fourth and the fifth window was discovered. The mosaic restoration in the nave was completed by January, 2016, whereas the wall mosaic  in the transepts was completed in June, 2016.