When building a house on a columnar foundation, a airspace remains under the house, which is almost never used for some homework. In most cases, the openings between columns around the entire external perimeter of the building are walled up with a wall. This wall between the columns is called a bolt. Charter of the whole device of the clock is made of stone or brick. Иногда забирку опускают в грунт на 30-50см. Today, screw piles are widely used in the construction of foundations.
To deepen the bolt into the ground around the entire perimeter of the building between the columns, a trench is dug up and a firm base is created for laying out the wall of the clock. The bottom under the bolt can be filled with large gravel and sand. To align the base, a cement screed is made a few centimeters thick and masonry the wall of the clock is made. If the house provides a basement or basement in the walls of the clock leaves left openings for windows. And for ventilation of the space between the Earth and the base of the floor in several places of the Zabirka, ventilation holes are created with a diameter of not more than 50 mm. After its erection in the presence of the basement, the bunch is insulated and faced with facing material. It should also be borne in mind that the wall of the bolt is in the area of enhanced earth moisture and rainwater. Therefore, the choice of materials for the bunch should correspond to high indicators for water resistance. In most cases, the walls are lined with a stone or stone tiles.
