The first mistake: the wrong choice of logs. Effortiness, curvature of a log, other defects of wood – all this already at the very first stage casts doubt on the final result of the construction of a log house. It is important to remember that just one curved log can cause deformation of the entire wall, because the wood will still shrink, that is, the bend may become more noticeable, which will lead to large cracks. Therefore, it is so important to sort the logs, choose the best materials without defects..
Second mistake: violation of the technology of laying the lower crown on the foundation. There is no backing board, for example, through gaps and gaps remain. If there is no tight fit of the lower rims to the foundation, this leads to significant distortions of the entire structure, moisture begins to get inside the house. Technological violations in this case are very serious..
Mistake three: incorrectly processed logs. Irregularities, too deep depressions, in some places the remaining bark – all this can cause a loose fit of the logs, respectively, cracks and gaps.
Mistake four: logs of too different diameters. It is clear that it is difficult to find perfectly equal logs of the same diameter. However, the difference in diameter should not be too large and visible to the naked eye. Otherwise, not only the appearance of the log house will suffer, but also the quality of the building. The minimum diameter is 220–260 mm. Maximum – 500 mm. The permissible difference in the diameter of the logs at one end of the log house is 30 mm, remember.
Mistake five: inaccuracies, errors when creating a bowl of a log. We wrote about cutting into a bowl as an option for building a log house. This groove for connecting the logs should be of the optimal size. Otherwise, problems such as unreliable joining of logs, distortion of the walls during shrinkage, bulging, deformation may arise. The house will turn out, to put it mildly, uncomfortable, unsafe for living.
Mistake six: the width of the grooves in the logs is too small. In the lower part of the logs, there should be grooves, the width of which is 2/3 of the thickness of the tree. For example, if the diameter of the log is 360 mm, then the groove width should be 240 mm. A small groove threatens that, during shrinkage, the log will bulge out of the wall, it will be damaged. In addition, freezing of the outer wall at horizontal joints is possible..
Mistake seventh: incorrect insulation between wreaths. For example, the primary caulking was not carried out in a stretch, the insulation did not fit into the longitudinal joints and bowls of the logs. And if it fit, then overhangs were not left, which should be at least 5 cm and subsequently wrap in the slots of the log house. What is the risk of this error? Of course, the fact that the log house is not as warm as we would like, cold bridges will appear, condensation is possible, which is very harmful to the wood.
Mistake eight: no shrinkage compensators were used. In particular, screw, which we have already talked about. It is important to understand that shrinkage can reach 10%! Therefore, without expansion joints, it will be difficult to avoid wall deformations..