Roof wall diaphragm connection unknown [RWC99] - jcgomezz/Building_taxonomy GitHub Wiki

It is not known if there are any connections between the roof diaphragm and the walls that are capable of transferring in-plane forces from roof to wall and restraining outward displacements of walls. There is insufficient information available or the connections are not visible from a survey.

It is often difficult to assess whether floor-wall connections are present based on the exterior view alone - an interior inspection is required (S. Brzev)

Floor-wall and roof-wall connections in stone masonry buildings are usually not exposed at the exterior (S. Brzev)