As a result, the old decorations had to be overpainted to revive their colours, while at the same time being reattached with fluid varnishes. It was then sufficient to redo identically the areas that had been trenched for the electrical ducts.
In this case, knowing the old techniques of beer and oil glazes made it possible to get as close as possible to the old decoration.
Auteuil church district, Paris 16th arrondissement