Very often, the upset of the house is due to the wrong choice of foundation. Many want to save money and make it cheap. As a result, after the first winter, a skewed house. To prevent these problems, before the construction of the building, it is necessary to perform geological studies of the development site. Only a correctly executed foundation will save the building from distortions and subsidence.
The building sank - how to raise a house?
This is a laborious and difficult job. First, it is determined which extensions will interfere with the work, they will need to be removed to provide access to the walls. To lift the corner of the house you will need three jacks. Two will need to raise the corner, and a third to have on hand for safety. You need to remember: after raising the wall, 3 chocks are installed and wedged under it. To lift the house, jacks of different carrying capacities and designs, levers-wagi and wedges of different thicknesses made of hardwood are taken. They are installed under the wall. Wedges are hammered between the logs and the foundation.
When raising the wall up, it deviates along with the opposite. This deviation is at a height of the wall 3 meters when lifting:
- 10 cm - about 5 cm;
- 30 cm - about 15 cm.
How to raise a house? What measures should be taken to maintain structural integrity?
If you have stove heating, you need to disassemble the floor around the stove and the attic floor, free up to 30 cm space near the pipe to protect it and the stove from destruction. It is necessary to remove door and window frames.
When raising a house to a small height or increasing its foundation, it is recommended that the raised and fixed walls be fastened with compresses on both sides. Such devices can be thick bars, plates or profile hire from corners and channels. 2 or 3 squeezes are installed on two opposite sides of the house, deviating from the corners by 70 cm. They are fixed to the walls with nails. Then, holes of 20 mm are made near the upper and lower logs, fixing bolts are inserted and tightly clamped. This design is raised to the required height, alternately each side. Before you raise the house on the second side, under the first substitute temporary shelters from racks or thick logs. Walls are fastened with clamps and wedged relative to the foundation.
Do not lower the walls too deeply or jerk up the walls - this can lead to chipping corners. It is necessary to ensure that during the rise there was no displacement of the walls relative to the foundation.
Before lifting the house with a jack, it is necessary to prepare a site for it. It can be shields, boards. A large bearing area increases the reliability of the installation of the lifting tool. In order not to damage the log, a patch is placed on its end with a metal plate. Two jacks raise one side of the house 80 mm. The pads are placed, the devices are transferred to the other side, and everything repeats.
Before lifting the house further, the rods of the jacks are lowered, the devices are transferred to the first wall. This transfer continues until the desired height is reached.
Be sure to follow the clear vertical orientation of the jack. At the slightest deviation from the vertical, the lift stops and the equipment is adjusted.
In no case should you crawl under the walls or slip parts of the body when they rise.