Other intermediate layers

They can exist intermediate layers like the insulating plates, drainage plates and geotextile plates, anti-pollution and load bearing improvement that avoid the mix between layers in the first case, and improve the insufficient  load bearing of the natural subgrade in the second.

Besides, they can be necessary, especially in interiors, intermediate layers in systems of heating by means of radiant floor, in which it has  the heating by hot or electrical water, or intermediate layers without function of support, like layers of separation, of acoustic isolation, thermal isolation, etc.

Radian floor under stone

These elements are used to  use to resolve some problems that can give  in pavings placing them between the main layers that constitute it.