Clay tiles are installed on a roof by spreading a thin layer of concrete on the roof and setting the concave face of the tile into the concrete.
I believe you mean the ceiling, which is concrete.
The best concrete for making a concrete bench is Bench concrete.
M20
marble and concrete slabs.
elephant
it is called a roof
The roof
The various mixtures for making concrete are,CementFine AggregateCoarse AggregateWaterAdmixtures (in some cases)
The roof of the cavity is called the "dorsal surface."
It is what you called the planning for the roof.
Roof