The change house from the pro-thinned-out bar, as well as other constructions from the presented material, gives a shrink. Experienced masters are able to pre-determine the nature of this effect. However, only a few specialists can confidently say what the shrinkage of the profiled timber in specific conditions will depend on. Let's try to understand the issue.
What does shrinkage suggest?
Shrinkage should be understood primarily as the systematic loss of moisture by the wood. A characteristic feature of the process is the change in the parameters of the building base. The material becomes lighter, decreases in volume, which often leads to its deformation and, accordingly, can affect the stability of the wooden change house.
The cost of profiled timber in the domestic market is from 7,000 to 10,000 rubles per cubic meter. When choosing high-grade material in the worst case, shrinkage will be observed, which will amount to a centimeter. The use of frankly cheap timber can lead to the most unforeseen consequences.
What does this effect depend on?
The extent to which the cabins will be shrunk from profiled timber depends on a number of objective factors, in particular on the quality of processing and the technology of wood storage.
Shrinkage occurs in several stages. The intensive period is about 3 months. Gradual - about a year. The process is influenced by several points:
- Section of a bar.
- Dimensions, which differ construction cabins.
- The degree of moisture of the material (wood harvested in winter is less natural humidity).
- Assembly technique for building structures (the nature of the corner joints, type and reliability of fasteners).
- Type of wood, on the basis of which a change house is constructed from profiled timber (dense species give less shrinkage).
- The time of year when the structure is being assembled.
What is the effect of seasonality on shrinkage?
How much the change house from the pro-thinned-out bar will sit down? The decisive role here is played by the seasonality of work. Structures that are built in the winter period require waiting about six months before putting the facility into operation. This is due to the need to "get used" wood to a gradual increase in ambient temperature. In this case, the material dries evenly and slowly warms up.
The construction of a change house in the summer is radically changing. In this case, a full shrinkage of the material may take a year or more. During this period of time, the building manages to survive all seasonal changes.
Of particular importance is where the construction cabins are made of profiled timber. Often the cause of uneven shrinkage of the material is the fact that one part of the structure is in the shade, while the other side remains in the zone of direct exposure to sunlight.
In addition, the cabins can be blown in different ways by the wind. Separate parts of the structure are exposed to a separate amount of precipitation, which also affects the nature and speed of subsidence of the material.
What to expect if you do not anticipate the effect of shrinkage?
The reflection of the effect on the characteristics of the structure is calculated even before the start of roofing, installation of windows and doors. If we take as an example a private house with 18 links with a cross section of the order of 150x150 mm, the structure settles by about 10 cm during the year. Without taking into account what was said during the construction of the cabins from profiled timber, premature operation can lead to a skew of door and window openings. Therefore, before assembling structures, it is extremely important to make accurate calculations and leave the necessary gaps.
The most detrimental effect of shrinkage will be if the cabin has an internal and external finish. Elements of the latter can break and even tear.
To mitigate the negative effects allows the settlement of walls using a special mallet. The use of the tool minimizes docking cracks and does not spoil the surface. A true solution is also laying high-quality interventional heat-insulating material. The best option for profiled timber is jute insulation, which has a minimal crimping effect.
When installing door and window structures, it is enough to calculate and leave technical gaps. Such openings are made in the upper part of the frames, and their width is about 2 cm. If necessary, the gaps can be hidden by installing platbands.
Eventually
The manufacturer of the material is able to most accurately assess the degree of shrinkage of the profiled beam during the construction of a change house or a wooden house. Calculations will be even more verified if the supplier is directly involved in the performance of work.