Replacement of house crowns: step by step instructions

Logs of wooden structure bear the main burden and are most affected by groundwater and precipitation. Worn and rotten with the time the lower crowns of the house require timely restoration or replacement. Otherwise, the entire building may die. A competent replacement of the crowns of the house is a troublesome business and requires certain knowledge.

Before starting the work, the causes and area of ​​damage to the log base are determined. Then the optimal solution of the problem is chosen. Dismantling and complete replacement of the lower crown of the house is not always necessary. Sometimes it is enough to repair the deteriorated site in the place of destruction. The process of replacing the lower rims of the house - the video is at the end of this article.

Causes of damage to the crowned crowns of the wooden house

The lower wooden crowns of the house suffer from moisture, fungus, shashel, mechanical deformations when the foundation subsides, etc.

1. During repair of the lower crown of the house, the causes that caused its destruction are eliminated. Most often, the logs are rotting as a result of high humidity. Moisture penetrates to the bottom of the house for several reasons.
2. Violation during construction or deterioration during operation of the waterproofing layer leads to penetration of moisture and decay of the crowns. This problem is eliminated by impregnating waterproofing mastics or replacing the waterproofing.
3. The deposition of a columnar foundation with a bulk clay fill also contributes to excessive wetting of the lower logs. In these situations, the lower rims of the wooden house are replaced and the waterproofing of the damaged area is reliable.
4. When the masonry of the basement is damaged, the base settles or the soil is swelled, it is necessary to raise the lower crowns of the house on the jacks, replace the logs and repair the basement of the building.

Replacing a damaged area without lifting the house

If the foundation is not destroyed and most of the log is intact, you can replace the crown fragment without understanding the house and making a complete replacement. The degree of damage in width and depth is determined. With the help of a chisel and a chisel, the damaged parts of the wood are removed.

1. Having retreated half a meter to either side of the restored area, vertical screeds are installed. The screed is a metal strip with a thickness of at least 2 mm and a length that allows to tie three crowns. In the metal screed and in the center of the logs, through holes 10x12 mm are drilled and tightened by studs.
2. The damaged area is cut by an electric circular saw or by hand. At the ends of the lower rim on the repair site, nests are made - cuts under the spike for connection to the insert. According to the size of the cutting, an insert is made, seats in place and is fastened with nagels.
3. All crevices and gaps are caulked with a resin paste and processed with an antiseptic. Foam is also suitable. Remains of foam are removed, and the seams are decorated with putty matched to the color of the log.

Replacing the lower crown of a wooden house with a brickwork

For a complete bulkhead of the lower rims of the house, lifting and hanging it on jacks is not always required.

1. With a sledge from one corner the log of the lower crown is knocked out. In the vacant space, supporting wooden chocks are hammered or a brick column is laid out. The same procedure is performed at the opposite corner.
2. The old foundation is cleaned and restored. A waterproofing tape is laid on the horizontal plane of the foundation. For this, two layers of ruberoid or rubimast with a thickness of 2 mm are used. The lower crown is replaced by a brickwork connected with the foundation by metal bonds.
3. After laying out the main central part of the crown and drying the masonry, the corner supports are removed and the free space is laid with a brick.

Sometimes it makes sense to install a few jacks and slightly raise the repaired part of the house.

Hanging a wooden house on the jacks to replace the lower rims of the

For a thorough repair of the foundation and replacement of the lower rims of the wooden house along the entire perimeter, it is necessary to post the sides on the jacks or simultaneously raise the entire building.

1. Before starting lifting and suspending the house on the jacks, it is necessary to make it as easy as possible. The best situation is when there is nothing in the rooms. It is recommended to remove the door frames and dismantle the window frames, as there is a risk of skewing and damage.
2. All communications are disconnected and disassembled in the house. To turn off gas and electricity, it is necessary to attract specialists and get permission. The water supply, provided there is no counter in the house, can be turned off by yourself.
3. Hydraulic or screw jacks are used on a rigorous base. The jacks are installed from the end part of the lower crown of the house and are built under the next link after the damaged one. To do this, in the subfield of the improvised materials a support column is erected, and in the damaged log a through-hole is cut to fit the size of the lever. As a lever, a metal channel or an I-beam is used.
4. Wooden screeds are attached to the walls and corners of the building. Screed - a wooden board that covers 6 - 8 rows of logs, is fastened to the screws in the center of each log. The crimping screeds do not allow the logs to move apart when the log is raised.

The repaired part of the house is lifted on the jacks, a jumper from the channel is put under the wall and falls on the temporary support posts. In this position, the wall is located before the completion of the repair, and then smoothly falls on the restored foundation. The process of hanging on the jacks for replacing the crowns of a wooden house is on video.