A galvanized steel mesh structure was built adapted to the original walls also the arcs and the apse. This mesh is held by a lightweight wall anchors. This solution has several advantages: on the one hand, several inches apart avoiding copying encapsulate the necessary permeability of the wall, and on the other, allows rapid reversibility of the replica.
On this structure is applied polyester resin reinforced with fiberglass.
The mortar is made with the area slate sand this way the appearance of the areas for which losses of paint layer simulating the original, thus, a compelling integration.
The surface, where to fix the images was searched to find a proper texture, similar to a paint like this.
The images were scaled and mounted transfer from the high-resolution photographs from the museum.
The imatges were printed on the Papelgel material with long lasting pigment inks and were adapted to the shapes and textures of the new surface.
Finally, a protective varnish was applied on the transferred image.