It is formed by crossing two barrel vaults. They can be made with any type of curve, size and even have a rectangular base. This formwork is made in such a way that it can be removed and reused.
CROSS VAULT WITH SAILS
It differs from a sail vault because of the diagonals. The central part is raised over the top of the lateral arches forming 4 sails. The sizes are on request. They can also be made without emphasizing the cross of the diagonals.
It is formed by crossing 2 barrel vaults without outer arches. The curves are tangent to the walls of the room and are designed and adapted to the sizes of the base and the rise.
It is generally semi-cylindrical but can also be made with any other type of curve. In case of a round curve, the inside of the formwork is hollow to enable removal and reuse.