— the floors in the room are covered with a layer of crushed stone about 20 cm thick,
— Moisturized clay is laid on top and tightly tamped,
— after the clay dries, lay concrete,
— the floors in the room are covered with a layer of crushed stone about 20 cm thick,
— Moisturized clay is laid on top and tightly tamped,
— after the clay dries, lay concrete,