How to raise the foundation of the old house

The basis of the whole building is the foundation, not compliance with the rules of the construction of which can lead to a violation of the geometry of the building, cracks, the settlement of the structure. Also, the causes of the foundation deformations can serve as changes in the level of underwater, atmospheric precipitation, hydrological processes. If the house itself is in good condition, the foundation can be replaced, without destroying the structure.

First you need to dismantle the old base. To do this, it is necessary to raise the house for some height. In order to make the weight of the lifted design as much as possible, all furniture, things, doors, disassemble the floor and disconnect all components from the premises, to disconnect all components that will interfere with the lifting.

Part of the corner foundation disassemble and put a jack? Loading capacity is not less than 10 tons. It is necessary to raise 1.5-2 cm high and immediately put a temporary substrate. It is impossible to raise more than 2.5 cm at once, as it can lead to a distortion of the building or even partial destruction.

Thus, they raise all the corners and side of the house. For longer walls so that they do not resist, set several linings under the lower crowns. Conducting successive operations, the house is gradually raised to the desired height.

Jack Install on a strong and reliable support, and not on the old foundation, the wall. It is impossible to hope only on the jack - insult yourself with the stacking of the backup.

After raising the house at each angle, concrete sites. Concrete poles are molded to height, equal to the height of the future foundation.

All over the perimeter at home you need to mount formwork, install the fastening fittings. Then all this structure must be pouring concrete.

After the fill of the new foundation, it is hydraulicized by several layers of rubberoid, so the upper part of the foundation cannot be lifted until the harm stops. After all the works, the building is gently lowered for a new base.

For ventilation of the underground space, leaving holes on the base of the foundation. On the opposite sides during the pouring, the asbestos pipes need to lay.