ROOFS

Stone has always been used for roofs throughout the world, with more or less fine thinly cut layers (bottom layer).
The shapes can be irregular polygons, squares of varying sizes, with borders that are sawed off, sheared, rounded, with or without pre-set holes, etc.
Currently mechanically cut slabs with specific thicknesses and processed surfaces are also used.
It is thus possible to have roofs in various colors, usually in shades of grey, green and black which can be more or less rustic and irregular, from heavier to lighter weights.
In the past, roofs had to be completely rain-proof; now the water-proofing of the underlying structures makes this characteristic optional therefore allowing for a lower level of superimposition and slope, etc.