In the seismic performance of masonry buildings, ceilings play a fundamental role in transferring the lateral forces to the walls, as well as exerting a restraining and linking action. The wood, steel and masonry ceilings, common in all historical buildings, often have structural limitations caused by the deterioration of the materials, seismic action and changes in the intended use that compromise the stiffness and, therefore, the capability of transmitting seismic forces.