How to insulate a log house from the inside

To begin with, I will say that resorting to internal insulation of a log house is forced by the fact that when living not in some luxurious mansion, but in an ordinary old one-story two-apartment house, it is sometimes very difficult to agree on external insulation of the entire house with neighbors.

Why is it not common to insulate a wooden house from the inside?

There are at least two reasons for a negative attitude towards the process of “insulating a log house from the inside”.

Firstly, after the insulation of the walls is completed, the area of the apartment is significantly reduced.
The second reason is that many are still tormented by doubts about whether the formation of the natural internal microclimate at home is not disrupted.

Since housing can turn into some kind of thermos, although normal ventilation is the key to the fact that there is no excessive humidity in the premises even a couple of years after the timber walls have been insulated from the inside.

Internal insulation technology

Let's start by preparing the surface of the walls by cleaning it from dust and grease deposits. Next, using a special antiseptic emulsion, the wood is treated to resist the appearance of mold and insects. In addition, fireproofing of the walls is carried out.

Caulking timber

Next, insulating a house made of timber from the inside consists of caulking all the cracks. For caulking, use jute fiber. This fiber, due to its structure and long service life, perfectly closes cracks.

Slightly larger cracks are caulked using tape tow, which is rolled into rolls. It must be said that insulating a timber house from the inside will only become effective when the cracks are caulked “under the throat”.

Installation of vapor barrier

It is also worth noting that proper insulation of timber walls from the inside cannot be done without installing a vapor barrier film. The rough side of the film is laid towards the timber wall, which ensures that moisture is removed from it towards the room. To prevent the apartment itself from turning into a thermos, forced ventilation of the premises is organized.

Lathing

After this, the insulation of the timber house inside consisted of organizing a sheathing on which the mineral wool would be supported. The lathing is organized using wooden blocks. A metal profile can also be used if you plan to further cover the apartment/house with moisture-resistant plasterboard sheets.

We’ll talk about wood, since the entire structure of a log house looks better with wooden lining. To obtain even, correct corners, which is required by proper insulation of a log house from the inside, several corner posts are made in advance, the height of the walls is measured and wooden beams are cut to this size (section 5x10 centimeters).

After this, wooden beams of 5x5 centimeters are cut (the same length). Some bars are attached to others, after which a corner stand in the shape of the letter “L” is obtained. These racks are placed in each of the corners of the house, after which beams (section 5x5 cm) are mounted vertically between them.

The distance between them is selected according to the width of the mineral wool, which is used as insulation for the walls of a timber house.

It is worth noting that all wood, like walls, is treated with special antifungal solutions so that the insulation of a house made of timber from the inside lasts as long as possible.

Installation of insulation

The insulation for the walls of a timber house (mineral wool in a roll is chosen) is unrolled and cut to the height of the wall, taking into account that its width should exceed the distance between the studs by 10-20 millimeters.

After this, the mineral wool is placed between the beams and secured to the wall itself with anchors. To do this work, you need to invite a friend, since it is quite difficult to do it yourself.

Second layer of insulation

After the mineral wool is laid and secured, insulating the timber walls from the inside requires the organization of a second layer of vapor barrier. The membrane film, as in the first layer, is placed with its rough surface towards the wall.

In addition to the fact that the film will remove excess moisture from the walls, which prevents the formation of condensation, it will become a barrier that will not allow dust from mineral wool to enter the living quarters.

Ventilation

Another important part of the process of “insulating a log house from the inside” is the organization of normal ventilation so that moisture does not accumulate in the home and there is a normal flow of fresh air. Let's immediately abandon direct external hoods, deciding in the attic to connect all the air ducts into one chain.

As a blower, you can choose an axial fan with low power, which, as experience has shown, allows you to ventilate the entire house in just half an hour in winter.

Finishing

It must be said that the insulation of a house made of timber from the inside should end with the “aesthetic component” - the finishing of the entire structure. As described earlier, the best finishing material is wooden lining, which is mounted on beams (section 30x40 millimeters) attached to the wall on top of a waterproofing film.

After installing these bars, the insulation of the timber house inside consisted of cladding using wooden lining. It was also chosen because the insulation did not lead to a violation of the original plan to create an interior with an abundance of wood.

This is where the whole process ends. If you have any questions, write in the comments at the bottom of the article.