[....]Then, with the help of the top template and the bottom template of each piece, the horizontal layers are carved. An as we know the highest layer has to be cut with the right slope to match the first voussoir of the vault (photos 18,19, 20).

Following the method described above, we start the construction of the centerings: The horizontal platform, the vertical timbers and the curved centers, able to load on them the weight of the voussoires. Each piece finds its correct position and the vault volume of the vaults begins to appear (photo 21,22).

An finally the entry dome is accomplished showing its beauty, all arches with witch the vault as been built are strictly the same and its final shape is not really important (photo 23).

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