What compensator timber shrinkage - Application and device operating principle

For all its many and undeniable advantages of wood as a building material has a number of drawbacks.Perhaps one of the most important - it dries out, or, in the language of professionals, shrink, and very significant in some cases.

about how to prevent decay or reduce the risk of ignition of wooden structures, we have already mentioned, and public awareness in this regard at a fairly high level.But so as to minimize losses from this same shrinkage, not everyone knows.

Whatever the manufacturer, but even such a high-quality construction materials, like corrugated board, subject to this "ailment".Shrinkage is characteristic of any structure in which design as bearing parts used timber. And if the house is built from the "clean" wood, then disregard this factor can not be by definition.

The average change in the structure dimensions reach 5% of the initial value of the linear parameter.As a consequence - skewed walls, window and door openings.And if we add to this the risk of cladding damage, utilities lines, multiple slots with their indispensable companion - a draft, then take the necessary measures not only to save significant money, and nerves.

types compensators

These devices have many names - "jack" for the home, adjusting rack, helical support and a number of others.But it is, in fact, is only the two varieties compensators.

Screw (jack)

working principle is clear from the title.By twisting the carrier pins can compensate for changes in the distance between the structural elements.

screw joints made of galvanized high-strength steel and are characterized by the following parameters (the most common in "cm»):

• limit on the height adjustment - from 10 to 25;
• cross-section of the stud - from 15 to 30;
• area response of the plate - from 10 x 10 to 25 x 25.

This diversity in design concept allows you to purchase the appropriate compensator for a particular carrier beams depending on its width, and the holes in the two plates (the response and support) provide a secure fitFitting it in place with screws.

When mounting accessories hairpin comes to the maximum extent possible, and the operation of the building on a regular basis is screwed an adjusting screw.How long, is determined visually - the owner should focus on the degree of slack beams.Practice shows that in compliance with all building regulations and the selection of materials need to change the value of the "departure" of support occurs about once every 6 - 8 weeks (a reduction in the range of 1.5 cm).

Price - from 190 rubles.

Spring

If the previous type of expansion joint is removable, these products are set in advance and are in the "body" of the beam continuously.Simple design - a spring located between the steel bowls.

Such devices are installed into the prepared holes, and serve not only to compensate for shrinkage, and thermal deformation.As a rule, are located in the joints of adjacent walls and in other similar places to prevent the formation of gaps.

price decreases with volume purchases.The cost of products at retail begins from 46 rubles .