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Secrets of building of wooden houses:

German and Canadian technologies of "Curtaining of external corners"

Use of metal couplers for connection of logs in notches

Notches in the house corners (Canadian notch)

Use of a special dowel (thorn) in the Canadian notch

"Undercut": application of a special gap on an axis of logs

Drawing antiseptics on all latent surfaces of a log shell

Use of technological cuts for management of formation of cracks in a log

Making of apertures under joiner's products

Features of technology of building of houses from an oval-flatten (a semioval log)

Joint application of a round log and an oval-flatten



Use of the technological cut for removal of loading and control of formation of cracks in a log

Be not surprised having seen a cut on the top surfaces of a round log or an oval-flatten (a semioval log) . It is a special technological cut, allowing to operate process of formation of cracks in a log.

What is a technique principle? If it is impossible to avoid formation of cracks in drying out logs, there is a problem of control of occurrence of these cracks. It is better, if cracks (or the deepest ones of them) are directed upwards, because there they will be covered by a groove of the top log. Thus the moisture will not get to cracks, "cold bridges" will not be formed, there will be no other negative processes for the tree and the house.

The technological unloading cut is made for setting the direction of formation of cracks cut in the top part of a log with depth about third of diameter of a log. Cut allows to unload a log (internal and external pressure) and to specify a demanded direction of a concentration of efforts of the internal forces inevitably arising in a log as a result of drying and pressure of the top logs.

Cut is made along all surface of a log except visible zones (near the end faces, notches, etc.).

In fig. 1 and 3 logs in areas of creation of notches are shown. Pay attention to cuts put on the top surfaces of the bottom logs.

On a fig.2 the result of use of unloading cuts is shown, allowing to operate occurrence of vertical cracks.

The technological cut in a log, operating formation of cracks
Cut is made in the top part of all logs in an invisible zone, on depth of one third of diameter of a log
Fig. 1.
Fig. 2.

As it was already mentioned, unfortunately, still there are many companies where with astonishment will shrug shoulders on your question about unloading cuts though this technology has received already a wide circulation.

Fig. 3.

The resulted information is the intellectual property of " Log Russia".
At a reprint of materials, the reference to a company site is obligatory.



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