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The cracks in the logs.

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steady increase in the number of wooden buildings has become one of the most significant events of the new millennium.The desire to have a rest from the exhausting effects of urbanization and positive energy of nature causes an instinctive understanding that this can be done only in your own cozy corner, are outside the bustle of the city and built, of course, made of wood.However, developers are waiting for the problems.Due to the fact that most of them - the victim of urbanization, engaging arrangement of wooden houses, the owners tend to move to conventional wooden structures similar to urban development, do not allow the emergence on the log walls are absolutely no flaws.Deluded by such stereotypes, developers have found the slightest cracks in the logs, panic, the consequence of which is becoming a lot of expensive and sometimes useless activities.

Content

  1. Causes of cracks in Brenna
  2. Preventive measures that prevent the formation of crack
    s in the logs
  3. sealing cracks in the logs: what material to choose?
  • repairing cracks in the logs acrylic putty
  • Elimination of cracks in the logs using acrylic sealant
  • Arbogips: preparation and method of repairing cracks in the logs with moss
  • Caulking cracks in the logs: the main advantages

Causes of cracking inlogs

discovering cracks in the logs log home, many owners think first about why they appear.The reasons for this process lie in a multitude of factors influencing the tree during its operation.However, the bulk of which is in a different amount of moisture is detected in the internal and external layers of the material.According to experts in the field of Wood Science, dries, the surface layers of wood are trying to reduce their size under the influence of shrinkage, while the humidity is stored in the inner layers of wood, prevents shrinkage of the inner layers.The result is a mismatch of compressive and tensile forces whose activation occurs in the inner layers.If the force of external impacts significantly higher strength characteristics of wood, there is a crack.

In addition, the intensity of fracture depends on the time of year when harvesting was conducted.If the workpiece material is conducted during the warm season when the sap flow rate, the highest in this case, the risk of fracture increases significantly, as the tree will be characterized by high humidity.

Thus, the conclusion is that the process of natural dry wood cracking - an inevitable process, which is not fully exclude possible.The only thing that can be done in this situation, to minimize the size and the number of newly formed cracks.How to achieve this?Read more.

Preventive measures that prevent the formation of cracks in the logs

Natural drying

most effective way to prevent cracks in the round logs is considered prolonged drying wood under natural conditions, it is necessary to carry out that prior to its use.The effectiveness of this action is determined by the uniformity of drying inner and outer layers of natural materials, which can only be achieved in vivo.Thus, cracks can be prevented by balancing the rate of drying of external and internal layers of wood, which will provide a uniform transition of the inner layers to the outer.Such a balance can only be achieved through natural dry in a shady, cool place, the duration of which is not less than two years.

Compensation propyl

There is another event of proven effectiveness, which found its application among developers seeking to prevent cracking process.SUMMARY propyl compensation is to reduce the stresses in the wood fibers.Compensation is performed propyl or discharge on the upper surface of the log or along its axis.Propyl discharge can be performed either along the axial surface and bringing only until the ends of the log.


To prevent the ingress of moisture into the cut, his cover overlying log.In the process of natural drying propyl will be gradually expanded, which subsequently lead to a reduction in the number of cracks and reduction of the depth and width of the existing ones.It is important to remember that the depth of the so-called cutting process should not exceed 1/3 of its diameter and the thickness of 7-10 mm, which could otherwise lead to the formation of cracks, which facilitates splitting logs.Perform technological propyl using chainsaws or Otsilindrovochnye machines.

activities imply sealing the ends of the logs

Given the fact that the ends of the logs are primarily at drying that contributes to an earlier and, importantly, the intensity of the formation of cracks, has developed a number of measures to prevent this process.The essence of the activities is to overlap the ends of the logs using a sealant that will prevent premature moisture and drying of wood.If in ancient times it was used to seal the ends of only lime, today construction market offers a variety of solutions, wax, oil paints and varnishes species that is much more effective to cope with this task.

But what to do if preventive measures at a later time and the crack has already formed?The seal cracks in the log and not to allow them to become centers spread rot?There are many methods and materials for repairing cracks in the logs of the framework.

sealing cracks in the logs: what material to choose?

construction market offers the following materials to seal cracks in the log:

  • Acrylic putty;
  • acrylic sealant;
  • One component polyurethane sealant;
  • Arbogips.

repairing cracks in the logs acrylic putty

Acrylic putty suitable for repairing cracks in the beam, characterized by small size and depth.If these indicators exceed 3-4 mm after hardening acrylic putty you will find that it has become a crack.The construction market offers developers ready to buy fillings, which are plastic compounds that are known to be painted in the color of a particular tree species.Fillers made in accordance with innovative technology, much more cold-resistant and water-resistant, dry faster and are durable.

Elimination of cracks in the logs using acrylic sealant

owners of wooden buildings, faced with the question: "The seal cracks in the log?" Should be aware that this event may carry out with the help of modern materials - acrylic sealant for cracksbalance beam, designed for sealing joints between mezhventsovogo bars and beam and kupno and small cracks in the walls of log homes and baths.

However, it is believed that acrylic sealant to fill the cracks in the depth of more than 5 mm is not recommended, as it significantly reduces the quality of the seal.

In that case, if the depth of crack exceeds 5 mm deep cracks harness laying of polyethylene to which subsequently applied sealant.The positive result of this event is due to low-adhesion polyethylene and acrylic sealant that enables you to create a fastening tape, characterized by high elasticity.

Arbogips: preparation and method of repairing cracks in the logs

Another material for repairing cracks is arbogips, which is a mixture of an aqueous solution of gypsum and a filler, a role which often serve sawdust, chopped straw or crushed bark.

  • Preparation arbogipsa not complicated and involves adding to the dry sawdust gypsum, based on the ratio 3: 1 followed by addition of water.The ratio of gypsum and water is 1: 2.If necessary, more plastic composition is added to the initial mixture a few drops of shampoo.
  • resulting arbogips invest in existing cracks with a spatula and leave to dry completely.Such a method of sealing is very effective because arbogips characterized by high adhesion to wood, which at times raises the operational life of the material.

moss Caulking cracks in the logs: the main advantages

in village huts with one of the most common method of embedding deep cracks, known since the days of our grandfathers, is embedding their moss.Such a method is not only functional, as it allows to eliminate thermal bridges, but aesthetically significant as it does not spoil the appearance of a log building.

Before caulking dry moss is immersed in a container of water for half an hour, after which the water is drained and squeezed moss.Humidified moss wound into rolls with a spatula and filled into the crack.To achieve maximum compaction moss tapping on the blade as long as the layer starts to bounce moss.After drying, which lasts on average 2-3 days there is an increase in the amount of moss that promotes reliable clogging of slits.