What to choose: dry profiled beam or conventional?

By Admin | Building Materials
13 April 2016

Despite the popularity of stone houses, many developers prefer to build houses out of wood.The market offers a variety of wall materials for the construction of a wooden house.We have already talked about the features of readers FORUMHOUSE houses from laminated veneer lumber.Now let's try to define what is preferable: an ordinary timber, or more expensive - dry profiled?

It would seem that the answer is obvious, everyone wants to save money and therefore it is better to choose an ordinary, or as it is called, "wooly" timber.But the building does not tolerate fuss.Before making the final choice, it is necessary to understand the key characteristics of timber and understand what are the advantages and disadvantages of these materials.

Pros and cons of conventional timber

Neutral beam obtained by processing of whole logs.The finished product has a rectangular or square cross section.Ease of manufacturing such a material affects its lowest price.

Neutral bar is considered one of the most popular

materials.However, it has several drawbacks.

Neutral beams planed wood of natural humidity.In accordance with GOST 8242-88 dry material is considered to be a tree, whose moisture content is not more than 18-20%.Lumber with a moisture content greater than 20% - a material with natural moisture.

usual timber when drying starts to deform.It can spin "helicopter" may cause cracks.The house, built of such material for a long time shrinks.

shrinkage of the walls up to 5%.Do finish a house built out of the ordinary timber, only after he settles 6-12 months.

Bought timber must be stored in stacks, to ensure the free circulation of air between the bars, which are laid in between plank thickness of 2-3 cm.

is also necessary to provide protection from rain and direct sunlight.

Some developers try to "get around" a number of negative characteristics of the material.

renat322:

- I've heard that if you take a normal board, with a section of 150x200 mm, and put him to the wide side of the horizon, it will be less twist and tear.Is it so?

Indeed, such a timber is less crack, but if you compare house built of timber 200x200 mm and a home from a bar 150x200 mm, the height of buildings in the same house, built of timber smaller section will give greater shrinkage (as have laid morethe number of rows of timber).

house built of timber 150x200 mm, does not look so impressive, as the house was built of timber 200x200 mm.

addition, beams of natural moisture, with improperly storing it can start to rot.The geometry of the timber is far from ideal, so a house built out of this material requires konopatka.If you do not (and caulk lumber house will have more than once), the walls begin to blow wind.In winter, the owners of the cottage will actually heat the street.

Before the start of construction of bar-shaped house is necessary to determine the purpose of the construction: cottage or permanent residence.

veresov:

- In my opinion, if a house is built for permanent residence, you can take an ordinary timber - 150x150 mm and then insulate it.

If additional insulation is not provided, then the house for permanent residence (depending on the region of residence) timber taken of at least 200x200 mm.If less, then the house will be cold.

walls of a house built from a conventional timber, due to irregularities and roughness of the material require additional finishing.This leads to additional costs.

plus a simple beam:

  • Low price, especially in the winter time.
  • Accessibility building material.
  • Easy to assemble at home - enough carpentry skills.

Cons simple beam:

  • having to repeatedly konopatki walls leads to increased cost estimates for construction.
  • need for additional finishing.
  • After drying the material can dramatically change its geometry, leading to deformation of the walls.

Dry shaped beam

shaped timber has a complicated cross-sectional shape.If you look at this stuff, you can see that he faces are smooth and well-crafted.The upper and lower (as viewed from the end, so-called working party), has sample "tongue and groove" or "comb".

With this profile provides a great tight joints, decreases the degree of blowing off the walls.In most cases, the house, built of corrugated timber, does not require additional finishing.Simply paint the walls to emphasize the texture of wood.

When the compound "tongue and groove" between the boards laid mezhventsovogo insulation.Even if a little dry lumber will lead, the connection "tongue and groove" will prevent blowing the walls.

Features Connection "comb" lies in the fact that the teeth exactly fit together.Therefore there is no need for a heater mezhventsovogo.When building a house used bad-dried lumber, when dry it can change its geometry, which will greatly reduce the reliability of the connection.

main advantage of dry profiled beam is that prior to the treatment on the machine it is dried and reject the defective products, which changed its geometry and began to rot.

Thus, to build a house there is a higher quality material.

Drying takes place either in a special oven, a naturally when placed in a ventilated timber stacks, and stored under a canopy to protect from the rain.When lumber drying chamber is dried in chambers equipped with heaters.By automating the process, the chamber is maintained optimal mode of drying.It depends on the size of timber, type of wood and its entry-level humidity.

Therefore dry profiled beam deforms less than the beams of natural humidity.This bar is better retains its geometrical dimensions, less cracking and less prone to growth of molds.

There is also a profiled bar of natural moisture.It occupies an intermediate position between the ordinary beam and well dried shaped timber.Its main difference from the conventional timber (except profile) that before the machined bar naturally dried until its moisture content reaches 22%.Also rejected material with apparent defects: cracks, "screw", etc.

Humidity dry profiled beam is in the range of 12 to 20%.The shrinkage of the walls, built of dry profiled beam is 2-3%.

All the advantages of the timber can be reduced to "no" when the wrong transportation and storage.Dry timber can rapidly absorb moisture from the atmosphere.Measure the level of humidity in the rod can be wood moisture meter.

Patrikeevna:

- In my opinion, the main plus shaped timber is its high color quality.If the house of such a bar is going to an experienced team, the structure does not require additional finishing.Yes, and the house assembled from such timber, looks more solid, more effective.

Cons dry profiled beam:

  • high price.
  • material loses all its dignity in violation of the conditions of storage.This may lead to cracking and formation of crevices timber.
  • Assembly must be carried out at home a team of professional, with experience of working with such material.

Leskos:

- If the slit shaped beam will, it, in contrast to a simple beam, not caulk.I also think that if you take a normal board, his own dry and prostrogat, outwardly it will look better than profiled, but the price will be much less.

To what sad consequences resulting violation of construction technology bar-shaped house, FORUMHOUSE users can learn from this thread.All information on the construction of the house out of the ordinary beam is collected here.Here you can find good pictures painted wooden houses.With the story of the construction of a country house out of dry profiled timber is available by clicking on this link.

From this video you can see how the screed "walk" bar and closed up the cracks.