I installed additional lathing strips.

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Having finished with the lathing, I set about installing the insulation. The sequence of actions is as follows:

I installed mineral mats in the lathing. To do this, I simply compressed the insulating material a little and inserted it between the lathing guides. There it became a spacer between georgia mobile database bars and did not move until all the work was completed. Very convenient and fast.
Installation of insulation.

I fixed a vapor barrier membrane to the lathing. This is a special film that prevents the insulation layer from getting wet, but at the same time allows the resulting water vapor to evaporate from the basalt wool, keeping it dry throughout its entire service life.
Vapor barrier film.

I made them from 3 cm high bars. The point is to create a ventilation gap between the vapor barrier layer and the finishing (lining), which will help remove accumulated moisture from the wall cake. This extends the service life of the lining, insulation, and enclosing reinforced concrete structures.
And finally, now you can start finishing the walls with wood. This is done in the following sequence:

I impregnate the lining with an antiseptic composition. For example, Triora Biozashchita. This substance protects the material from biocorrosion and insect damage. After treating the lining, the antiseptic must dry completely.
A product for protecting wood from biocorrosion.

By the way, stores sell lining that has already undergone all the necessary preliminary processing. If you bought one, you can skip this step.

I am installing utility lines. This includes several sockets, switches and spotlights.
It is necessary to take care of laying electrical cables in advance.

Please note that electrical wiring under wood should only be carried out in special corrugated cable channels, which will prevent the finish from catching fire in the event of a short circuit.