Insulation of wooden walls from the outside. Rules and secrets of insulating walls in a wooden house from the inside How to insulate wooden walls of a house from the inside

Insulation wooden house produced from within in order to make energy consumption efficient. Today this topic is more relevant than ever, because resources are very expensive. And you expect a wooden house to have a long life, which means it is necessary that the building has adequate temperature regime and proper ventilation.

Today, insulating wooden walls from the inside is within the capabilities and budget of everyone. But why do many people think that this is bad and ineffective?

According to the mind, the house should be insulated from the outside, so you transfer the dew point outside, it will fall on the insulation or on the outer wall.

This will ensure that there is no condensation in the room. Builders also recommend comprehensive insulation.

But the topic of this article is internal insulation. In practice, it constantly happens that it becomes acceptable for various reasons exclusively internal insulation walls of a wooden house. This can happen if the house has already been rebuilt and has beautiful facade, remake which into this moment not appropriate.

You may not want to cover the logs from which the house is made, because it looks much better. In general, for a number of reasons, insulation interior walls wooden houses have been and will always be in demand. This means that you need to learn how to do it correctly in order to create a microclimate in your home that is comfortable for people and materials, while spending a minimum of money and time.

Ingredients of success - right choice materials and strict adherence to technology.

Ideally, before insulating a wooden house from the inside, it is necessary to make engineering calculations. This stage must precede all work on the arrangement, reconstruction or construction of residential buildings. Thermal calculations are done to determine where the dew point will be. Because having installed insulation, you can be sure that it will insulate, but you can protect your home from moisture only if you correctly calculate the location of the desired point.

The basic principle is that it should not be in insulation and not indoors. The mistake will be fatal: the rooms will become warm, but damp, as a result, the insulation will begin to collect moisture, the walls may rot, all this will lead to the appearance of mold and insects.

Therefore, calculate everything yourself or invite a specialist - but be sure to make sure that even in bitter frost The dew point will be outside!

The right material

When the theoretical part is completed, it is time to move on to practice. And for this, first of all, you need to choose the right insulation.

Requirements put forward for it:

  • Low thermal conductivity;
  • Compliance with fire safety requirements;
  • Strength and durability;
  • Environmental friendliness, safety.

The method by which we will insulate the house directly depends on the chosen material.

Process and technology

Now that you have decided how best to insulate your house, let’s move on to the question of how to properly insulate the walls of a wooden house from the inside. To do this, it is important to thoroughly follow the technology.

If the insulation of the walls of the house is carried out with the organization air gap, attach the sheathing to the slats on the walls, or directly to the wall if you do not have an air gap. Use screws of the required length.

  • After this, the insulation is directly mounted on the insulated wall. It is placed in the cells of the sheathing. If you use sheets, then go from bottom to top, if rolls, then go from top to bottom. Good and The right way lay slabs mineral wool- do it by surprise. Reinforce everything with dowels.
  • Waterproofing completes the internal insulation of the walls. To organize it, use a vapor-proof membrane: steam will escape from the insulation without problems, but the barrier to water will be insurmountable. The film is different on both sides, place its rough side against the insulation so that the smooth side is on the outside. Make the joints overlap 10 cm, secure the film with a stapler.

In order to hide traces of insulation of the house from the inside, it is necessary finishing: whether it’s lining, drywall, painting, wallpapering or plastering – it’s up to you. The main thing is that now your home will be warm, but there will also be no place for dampness and dangerous moisture!

Insulate a house that does not yet have any interior decoration much easier than doing this in an already fully furnished and landscaped house. There is no need to rush into any interior work until every room in the house is properly insulated. Thanks to modern materials, you can do this yourself. Any room will be cozy and comfortable if you approach the matter competently and carefully read the technology for insulating the ceiling, walls and floor.

Insulation of the ceiling of a wooden house

As a rule, ceiling insulation is not treated responsibly. Many people believe that there is no need to insulate it, but this is far from true. The air that people try so hard to heat in winter rises up and goes through the ceiling to the street. By making a serious mistake - leaving the ceiling uninsulated, many people unknowingly lose half the heat, they waste cash on warmth disappearing into the unknown.

Ceiling insulation material:

  • Mineral wool. This material is not expensive, but reliable and easy to install. It is one of the few insulation materials with which you can work independently, without calling on other workers for help and, most importantly, without paying them money.
  • Glassine. Used as a waterproofing material.

For structures and frame cladding you will need:

  • Edged board.
  • Nails, glue, polyurethane foam.
  • Drywall.

Tools for ceiling insulation:

  • Hammer.
  • Hacksaw.
  • Screwdriver.
  • Electric jigsaw.
  • Tile adhesive.

Stages of ceiling insulation:

  1. From edged boards we make a frame, you need to be prepared for the fact that this will reduce the height of the room. The distance between the frame boards should be no more than 1 meter.
  2. Between the frame boards it is necessary glue the glassine, without leaving empty spaces, in order for the material to stick well, it needs to be coated a little with tile adhesive.
  3. On top of glassine laying insulation- mineral wool. Do not leave holes between the insulation. If the material does not adhere, use tile adhesive in small quantities.
  4. The last stage is plasterboard ceiling covering. Using a screwdriver, screw the sheets of drywall to the wooden frame.

It is necessary to insulate the ceiling from the inside in the warm season and not earlier than 1 year after the construction of the house. Only in this case will the insulation be carried out correctly and last for many years.

If you decide to insulate the walls of a wooden house from the inside, you need to know what may be on the walls in this case. condensation will form. Especially subjected to this northern places globe, where it is very cold in winter, but the rooms are warm. This happens due to the effect of temperature changes, during which the dew point moves into the layers of insulation. This situation can be corrected film, which is used together with insulation, or provide good ventilation.

Necessary equipment

  • Jigsaw, hammer drill, screwdriver, mallet, tape measure, level, plumb lines, chisel, screwdriver, hammer.
  • Wooden beams.
  • Felt, foam or tow.
  • Material for wall insulation, for example, glass wool.
  • Drywall.
  • Putty.

Modern materials for thermal insulation of walls

  • Ecowool- this material perfectly fills all existing cracks and voids in the walls, at the same time preventing walls from blowing through. It prevents moisture from penetrating inside, thereby preventing the occurrence of fungal infections. One of the few breathable materials.
  • Glass wool- having chosen this material for insulation, you should take care of the thermal insulation in the room, since glass wool allows a small amount of moisture to pass through, as a result, the thermal insulation qualities deteriorate.
  • Expanded polystyrene- one of the most common materials for wall insulation in wooden houses. First of all attracts with its cheapness. Also positive qualities are elasticity and lightness. The material has heat and sound insulating qualities.

Wall insulation technology

All cracks in the wall must be sealed foam, linen felt or tow. You can choose any material that is more convenient to work with. We make the sheathing from wooden beams. We place a place for installing the outermost elements of the sheathing. Special attention should be paid to this How evenly I will attach the next ones depends on the first beams, so use a level and plumb lines to verify.

If the definition of the first beam is completed, it should be secured with screws and dowels. Should be fixed every 25-30 cm. Then we measure 1 meter from the first beam and fasten the second one exactly parallel to the first, etc. until the complete perimeter of the sheathing is formed on the entire wall. If you meet on the way window openings, they should be covered with bars in a circle.

Each beam must be treated with antiseptics to prevent rotting and fungi. The sheathing is ready. Insulation should be laid between the bars. There is no need to use glue; the material will stick tightly between the sheathing and the wall.

Making insulation. Used for vapor barrier film or polyethylene, it is applied over the insulation with small allowances along the edges.

The last stage is finishing. We cover the walls with plasterboard, we screw it to the sheathing of beams, it is important that the slabs fit tightly to each other. If cracks appear, they should be filled with putty.

Insulation of the floor of a wooden house

Tools and materials for work:

  • Hammer, drill, saw, electric jigsaw.
  • Nails, tape measure, pencil, knife.
  • Level, plane.
  • Mineral wool.

Concrete floor in private wooden house definitely requires insulation. It is worth noting that the process of floor insulation is not easy, but you can carry it out yourself by spending personal time and effort. Let's consider the method - "raised floor", it will raise the floor by at least 6 cm, but makes the room much warmer.

Mineral wool for floor insulation

Mineral wool has been a inexpensive but effective material.

Advantages mineral wool:

  • This material soundproofing and heat-insulating.
  • Excellent characteristics and reviews.
  • Duration service life.
  • Low density.
  • Does not deform almost under no circumstances.
  • The price is always available for any citizens.
  • Available in 2 types: flexible mats or hard slabs.

The only competitor to mineral wool is polystyrene foam; it boasts of its practicality and ease of installation.

Insulation of a wooden house should be carried out completely; it is necessary to insulate ceiling, walls and floor. If the ceiling is insulated but the walls are not, warm air will still leave the room through microcracks and then all the work will be in vain. On modern market you can buy a lot thermal insulation coatings and tools for home insulation. If you approach the matter competently, even an old wooden house will be cozy and warm in the coldest winters.

Video of insulating a wooden house

An important stage in construction modern houses is their thermal insulation. The main goals of insulation are to create comfortable temperature indoors and more economical consumption of energy resources used for heating.

Both wood and stone buildings need thermal insulation.

According to building regulations, insulation must be done externally. The reason is that the dew point is located at outside rooms in insulating material or in front layer load-bearing structures. With this method of thermal insulation, condensation will not form on the walls of the rooms.

But this insulation option is not the only one. Thermal insulation is carried out not only from the outside, but also from the inside. In some situations, internal insulation is the only correct option. For example, if a homeowner wants to keep external presentability, which distinguishes wooden buildings, or the architectural appearance of the house has historical value.

We suggest you learn how to insulate the walls of a wooden house from the inside with your own hands. different types thermal insulation materials.

Causes of heat loss in a wooden house

As a rule, wooden houses are very comfortable. Such buildings are cool in the warm season and warm in the winter.

A decrease in temperature inside a wooden house is caused by two main factors:

  • improper vapor barrier;
  • cracks that appeared in an old building due to the drying out of wood over time.

Is it possible to insulate a wooden house from the inside? Of course, and if the house is old, it’s even necessary! In order to perform thermal insulation from the inside, it is necessary to choose the right materials and follow the technology provided for such a task.

Insulation work for both new and old wooden houses are carried out in stages.

How and with what to properly insulate a wooden house from the inside with your own hands? Let's consider the stages of internal wall insulation and select environmentally friendly insulation for internal thermal insulation.

Preparation

All actions related to the construction and improvement of residential buildings must be preceded by calculations - this rule also applies to the insulation of a wooden building.
Calculations make it possible to find out the degree of effectiveness of thermal insulation and find out whether it is, in principle, possible to carry out insulation from the inside.

Insulating material always fulfills its purpose, but the location of the dew point plays a decisive role. Under no circumstances should it be placed on the inside of load-bearing structures, especially in insulating material, and the task of the calculations is to demonstrate this.

When the dew point is placed from the inside, the room will have a fairly comfortable temperature, but in winter there is always dampness, leading to wet insulation materials, wood rotting, and mold formation.

Provided that the dew point does not end up in the inside of the room even in winter, thermal insulation can be done from the inside.

But at the same time, the internal space of living quarters will inevitably have to be sacrificed.

Selecting materials

There are a number of requirements for materials used for internal thermal insulation of wooden houses:

  • low heat conductivity;
  • fire resistance;
  • strength;
  • environmental Safety.

Thermal insulation methods are selected based on the materials used for this purpose.

How to insulate a house from the inside? Currently, several types of insulation for house walls are produced:

Modern insulation materials have many advantages: lightness, flexibility, excellent thermal insulation parameters.

Seal the joints

Having decided to take on the task of insulating a wooden house with your own hands, you need to take into account one important point. A wooden structure shrinks, a process that takes several months. In addition to shrinkage, when brought into operating mode heating system Wood in the rooms begins to dry out at high speed. This is reflected in the configuration of logs and beams.

Initially densely spaced wooden elements Large gaps can form at the junction points, releasing heat into the street.

For this reason, the first step in thermal insulation of a wooden household should be sealing the seams.

For this purpose, sealants and other materials are used. It is convenient to seal the cracks with a wide chisel.

If the gaps are large, use rolled tow.

At this stage the main thing is to stop the exit warm air through the cracks.

Important! Do not forget about the safety of electrical wiring when sealing cracks, especially if it is located on the surface: in this case, be sure to separate it and insulate it from the wall.

Protection of wood from fire and biological factors

Part of the supporting structures located from the inside, on long time will be covered with an insulating layer. Taking this into account, the wood should be treated with agents that protect it from fire and mold. You cannot save on treatment with such compounds, and you need to choose high-quality products to ensure good protection.

When treating load-bearing structures with agents that have fire and bioprotective effects, you need to take into account that wooden fences also need treatment, since they will also be located in the insulation.

Ventilation

For what reason did owners of private houses previously not think much about ventilation of buildings? The thing is that previously ventilation was carried out naturally - through loosely located windows and cavities in the walls. This is typical for old log houses even now.

The materials used for the construction of modern buildings avoid gaps and cracks through which air flows can circulate. But this does not mean that there should be no air movement in the rooms at all. Modern buildings are designed ventilation systems. Such systems remove recycled air from rooms and provide an influx of fresh air.

Properly performed internal insulation must provide ventilation. Only in this case the microclimate in the house will be optimal.

The insulation itself, which has a porous structure, for example, mineral wool, also needs ventilation. For this reason, there must be a small distance between the supporting structure and the heat-insulating material for unhindered air circulation and removal of excess moisture. In this case, the humidity level throughout the room will be uniform.

Making such a gap is not difficult. A wooden strip measuring about 25 mm in size is attached to the supporting structures at an equal distance, and a vapor barrier film is attached on top of it. Thus, a small distance is formed between the wall and the heat-insulating material for air movement, which protects against moisture internal structures and insulating material.

On a note! If the walls of the building are made of logs with a cylindrical configuration, then ventilation gaps are formed naturally. If laminated timber was used to build the house, it is recommended to take care of designing the ventilation gap.

Vapor barrier layer

The use of thermal insulation materials such as glass wool, mineral wool, and expanded polystyrene (non-pressed variety) for insulation requires the installation of a vapor barrier.

It is mounted as follows: a vapor barrier membrane is attached to the ventilation sheathing. A stapler is used for fastening.

Important point! During installation vapor barrier membrane Be sure to pull the film tightly so that there is a gap between the supporting structure and it for ventilation.

Joining two sheets vapor barrier film overlapped by at least 10 cm and secured with tape.

If an extruded type of polystyrene foam is used as a thermal insulation material, then there is no need for a vapor barrier layer. Extruded polystyrene foam is characterized by waterproofing properties, preventing the penetration of moisture.

Fencing installation

In all options for thermal insulation of internal load-bearing structures of log or timber house, with the exception of using isoplat, installation of a fence is required. Typically, timber with square section(50 mm). The distance of the wooden block depends on the width of the insulating material.

When using mineral wool, the step between the placement of the bars should be 10 mm smaller in comparison with the width of the heat insulator in order to achieve maximum tightness.

When using extruded polystyrene foam, the step is made in accordance with the width of the sheets of material.

Important! Be sure to process everything before installation. wooden blocks composition with fire and bioprotective properties.

The bars are attached with screws directly to the wooden load-bearing structures. If there is a sheathing to form a ventilation gap, the beams are attached to the installed slats. It is recommended to insert fasteners into pre-made small holes (use a thin drill for this) so that the wood does not crack.

In some cases, the fence is made of plasterboard profiles attached to supporting structures using direct hangers. This is done only if the cladding is made of plasterboard.

Wooden bars are preferable because they have lower heat conductivity compared to metal products.

In the process of thermal insulation of the ceiling, the fence is designed according to a similar principle. When insulating a floor, wooden logs to which the finishing coating is attached serve as a fence.

Installation of heat insulator

Insulation material is placed in the cavity between the enclosing elements. If the heat insulator is in the form of sheets, then wall installation should start from the bottom, and when using roll material- from above, moving down.

Mineral wool sheets are placed sideways, due to which their reliable fastening. But this material, just like foam plastic, needs additional fastening with nails (one for each sheet).

Thermal insulation in rolls is attached to the top of the wall with one screw, then the material is unrolled and attached with nails at a distance of one meter.

First, solid sheets are installed, and the remaining areas where trimming is necessary are filled with insulating material at the very end.

If the roof is sloping, the ceiling insulator unfolds from the bottom in the direction from bottom to top and is secured with nails or with a cord. Small nails are nailed to adjacent bars at a distance of 15 cm, and after laying heat insulating material, a cord is stretched in a zigzag between the beams, which will ensure reliable fastening of the insulation.

When insulating with extruded polystyrene foam, all existing gaps in the seams are sealed with construction foam. Applying foam requires pre-wetting the surfaces. Dried excess foam is cut off with a knife.

Video about insulating walls from the inside

The video tutorial below shows how to properly insulate a wooden house from the inside:

In order to maintain warmth and comfort in the house, it is necessary to add a thermal insulation layer to the external walls. Special attention are given to buildings that have been in use for a long time and have survived many negative impacts. Therefore, many owners are interested in the issue of insulating an old wooden house.

A house made of wood has the ability to allow vapors to pass out, making it always comfortable to stay indoors. If you choose the wrong material for insulation, you can completely block the loss of moisture, which will lead to its accumulation in the walls of the building. This will lead to premature destruction of the entire structure.

Mineral wool

Experts say that the best insulation Can't find one for an old wooden house. And indeed it is. has the following properties:

  1. Excellent heat retention.
  2. Isolates interior spaces from extraneous sounds from environment.
  3. Light weight helps to do everything quickly and efficiently.
  4. The structure of the material allows you to hide all the irregularities.
  5. Fire and environmental safety.
  6. Rodents do not use them to create nests.

But there are also a number of negative points:

  • protection from moisture is necessary, therefore the mineral wool is torn with a vapor barrier membrane, on the one hand, and windproof film, with another;
  • requires mechanical fixation.

But such shortcomings are easy to cope with, so this option is suitable for an old house or a new building.

Styrofoam

Insulation from the affordable class. Therefore it is in demand among everyone construction companies and private developers. In addition to this positive point, there are a number of others:

  1. Good thermal insulation properties.
  2. It is soundproofed.
  3. Does not absorb moisture.
  4. Withstands small mechanical loads.

But a small set of disadvantages makes polystyrene foam unsuitable for insulating a log house in a village:

  • lack of vapor permeability;
  • rapid destruction under the influence of ultraviolet radiation;
  • rodents and insects love to create their homes in this material;
  • polystyrene foam ignites easily and then smolders, releasing caustic substances.

Wood already burns well, and if the finishing is such that being in such a house will be life-threatening.

Penoplex (polystyrene)

This material is a close relative of polystyrene foam. But manufacturers have slightly improved the properties of the insulation, due to which the cost has also increased. What characteristics are inherent in penoplex?

  1. Improved thermal insulation properties. If 10 cm thick foam plastic is needed to insulate a house, then you can replace 5 cm with polystyrene foam.
  2. Withstands high mechanical stress.
  3. Doesn't absorb moisture at all.
  4. There are also soundproofing properties.
  5. Penoplex is produced with the addition of fire retardants, substances that prevent the material from igniting under the influence of fire. Therefore, compared to polystyrene foam, penoplex is safer.

It is sometimes used as thermal insulation for wooden buildings. But it is only suitable for a plinth or foundation. This is due to the lack of vapor transmission capacity. As a result, condensation will form on the walls, which means it will contribute to the development of mold and mildew.

What is the best way to insulate?

A house with a long service life requires not only insulation of the facade, but also all structural elements as a whole. Such actions will help to more effectively retain heat inside the house. Therefore, we will consider all the elements separately:

Wall insulation

It is better to insulate the walls from the outside. This shifts the dew point towards the environment, allowing it to be removed from the substrate much faster. If you insulate the walls from the inside, you can cause a completely opposite result. In this case, the walls will still freeze.

To insulate the walls, we choose hard mineral wool mats. If you have the financial means, you can take the foil version. A layer of foil will reflect heat from the walls. Before installing the insulation, be sure to close all cracks.

In this case, we use a tourniquet, dry moss or tow. With this material we tightly seal the inter-crown space or cracks that may form on the logs.

Ceiling

You can insulate the ceiling in two ways:

  • from the side of the room;
  • from the attic side.

Both the first and second methods are effective. More rigid materials are laid on the ceiling. If there is an attic under the roof, then it is better to resort to insulation from the side of the rooms. Then a structure is created from beams, between which sheet insulation is placed. Don't forget about vapor barrier membranes.

When there is an attic under the roof, you can use mineral wool and even polystyrene foam. A more rigid material must be laid on top of the insulation. This can be chipboard slabs, which will protect the insulation from being pressed through.

There is an option when they use bulk insulation, for example, sawdust, gravel. But you need a lot of such materials, which can be even more expensive than using modern insulation.

Floor

The choice of insulation technology for a dilapidated house depends on whether there is basement or not. If there is a basement, then first insulate it. There may be no need to further insulate the floor after this.

But if such a need has already been determined, then choose the following options:

  1. Laying heated floors (electric heating). Not always suitable for old wooden structures, as it requires reliable electrical wiring.
  2. Use of thermal insulation materials. Choose only hard options, but be sure to make a plank floor or cover chipboards or OSB, and then decorated with the selected flooring material.

It is in an old wooden house that large heat losses occur due to dilapidated floors. Therefore, you should not neglect the possibility of insulating floors. More precisely, start insulating the house from the floors.

How to insulate an old wooden house with your own hands?

The wood must be specially treated before starting any exterior work. Especially if the structure is closed from the eyes of the owner. Therefore, carefully and thoroughly adhere to the insulation technology if you do everything yourself.

And if you trust the masters, then do not forget to supervise the team. It often happens that workers want to complete the work earlier and are a little slack. This can lead to premature failure of the structure.

Surface preparation

First, let's prepare the base:

  1. Clean all dirt and stains, traces of insects or fungus.
  2. Remove old decorative coating.
  3. Remove hanging structures that will interfere with all work.
  4. Close all cracks.
  5. Cover by wooden structure protective compounds. This antiseptic impregnations or mastics and moisture-repellent compounds. This will significantly extend the service life of the base.

If the package says that it is advisable to make several layers, then it is better to do it as the manufacturer recommends. If you save at this stage, you may regret it later.

Laying a vapor barrier layer

After the impregnation has completely dried, begin laying the membranes. This layer will protect the walls from moisture and allow vapors to freely pass through the insulation and escape outside.

  • begin laying from the bottom of the wall in vertical stripes;
  • each subsequent strip overlaps the previous one by 10–15 cm;
  • the joints are fixed with tape;
  • the membrane itself is secured using a construction stapler.

Installation of sheathing

For the frame use wooden blocks or metal profiles. If selected wooden frame, then its parts also require special processing in order to last as long as the decorative layer. In addition, the bars will not be able to hide the unevenness of the walls, which means you will have to place pegs or cut them off in some places.

With metal everything is much simpler - we take it and install it. Special retractable brackets will easily hide all the shortcomings. But such a structure will cost a little more than a wooden one.

The method of installing the frame depends on whether insulation will be used or not, as well as on what kind of decorative material it was decided to install it on the facade.

The rough plan is:

  • First we make the markings. The pitch between the elements is equal to the width of the insulation;
  • screw the elements;
  • We check how level the parts are installed using a building level.

Installation of heat insulator

The material, which acts as a heat insulator, is placed between the sheathing elements. The mats are laid tightly. At the same time, make sure that no gaps are formed. Mineral wool should not bristle.

If such defects appear, they will subsequently become cold bridges, which will partially or completely eliminate the insulation work. Therefore, the material should lie tightly, but evenly.

Laying windproof film

It is customary to lay on top of the insulation windproof membrane. This material will protect the mineral wool from penetration of atmospheric moisture under the finish. The installation principle is the same as for vapor barrier film:

  1. Let's start working from the bottom.
  2. We make vertical stripes.
  3. We overlap them by 105-15 cm.
  4. We seal the joints with tape.
  5. The membrane is fixed with a stapler to the sheathing.

It is appropriate to use mushroom dowels here. This mechanical fastener will additionally secure the insulation and membrane.

Installation of lathing for fastening finishing materials outside

The additional sheathing also creates a ventilation gap, which allows you to remove steam escaping from interior spaces. The gap size can vary from 3 to 8 mm. It all depends on the thickness of the insulating material and the region in which the house is located.

Exterior wall decoration

As finishing material for a wooden house you can choose any known option. It is important to take into account the condition of the structure, that is, the strength of the structure. If the house is too old, don't choose heavy material, since the structure may not withstand the load and collapse.

  • completely follow the installation instructions provided by the manufacturer;
  • fix the parts to the sheathing elements;
  • choose dry weather;
  • Insulate a wooden house only in the warm season.

Possible problems with insulation

Before insulating an old wooden house, be sure to check how strong the structure is. If necessary, the walls and foundation need to be strengthened. For those who have never dealt with such a thing, it is better to take care construction team, rather than start experiments.

And those who still decide to do everything themselves should strictly adhere to the instructions and not let anything slip out of sight. It is important to properly prepare the base, choose insulation and finishing.

We will not discuss the insulation of frame wooden houses here - this is a completely separate conversation, there is a different technology and we will talk about them in other articles.

Why it is not advisable to insulate walls from the inside, and what consequences may arise, I have already described in one of the previous articles.

Here we will talk exclusively about the features of internal insulation related to wooden houses.

In principle, there are not many features, basically it is necessary to adhere to the basic rules of insulating walls from the inside, the main one of which says that no insulation of walls from the inside will replace high-quality insulation houses outside. But if there are no options, then you need to adhere to a certain technology.

Preparing the wall of a wooden house for insulation

This stage is very important, since after insulation, access to the beam from the inside will be very limited, and in order to fix anything it will be necessary to completely dismantle the insulation.

And so, first of all, it is necessary to clean the walls from the inside from dust, dirt, various peelings, etc.

Then seal the cracks and holes that appear.

Deal with electrical wiring if you have wires running along the walls. If the house is old, it would be better to check all the electrical wiring and repair it if necessary; if it is new, then carry out the installation, not forgetting about electrical safety in wooden houses.

Vapor barrier for insulation

Before installing the insulation, it is necessary to prepare a vapor barrier. It is necessary to protect the insulation from moisture on the walls, which will be inevitable after insulating the wooden walls of the house from the inside. In turn, the more moisture inside the insulation, the less useful it will be.

The vapor barrier film also has a negative effect - creating a thermos in the room. The walls practically stop “breathing”, and humidity, as a rule, rises. Only good ventilation can save you from this. Without ventilation, you should not start insulating walls from the inside, because over time you will begin to get the feeling that you are living in plastic bag, and the walls will begin to sweat and get wet, and as a result, fungus and mold will appear, which will have a very detrimental effect on the wooden walls and on the health of the people living in the house.

Vapor barrier can be made with a special membrane film, which will do its job much better and more correctly, but it is much more expensive.

Installation of cotton-based insulation

As a rule, installation of mineral wool is carried out using lathing, since this is the most suitable option due to the characteristics of this type of insulation.

Installation is carried out on the wall, on top of the vapor barrier. wooden sheathing(it is not advisable to use metal, since metal has very high thermal conductivity).

Then insulation is laid between the slats. The most commonly used material for interior wall cladding is plasterboard. It is usually screwed directly to the sheathing.

Installation of polystyrene foam insulation

Polystyrene foam is the cheapest and most practical insulation material available today. Expanded polystyrene is used very often as external insulation, mainly due to its low cost and low thermal conductivity.

But despite this, it is least suitable for insulating a house from the inside.

There are several reasons for this:

  • release of toxic substances (the higher the temperature, the more)
  • airtight
  • Over time, rodents may appear in it

Installation of Ecowool insulation

The characteristics of ecowool are much more favorable for insulating the walls of a wooden house from the inside:

  • breathable material
  • there is some kind of protection against fungi and mold
  • Due to the passage of air through itself, it prevents the walls from storing increased moisture.

Common mistakes when insulating wooden walls from the inside with your own hands

  1. Many people believe that the more insulation when insulating from the inside, the better. I assure you that this is a myth. If there is too much insulation on the inside of the walls, the dew point can move into the insulation itself, and if it is on a cotton base, its thermal insulation will decrease significantly, and the insulation itself will not last long in damp conditions.
  2. Some people insulate the wooden wall of a house on both sides, and this will have a very detrimental effect on the wall itself. The reason for this is the vapor barrier of the insulation, which will not allow the wall to dry out, and over time, fungi, mold and rot will appear there, which will destroy your wooden structure much faster than you think.

If you have the opportunity to insulate a wooden house from the outside, then insulate it without hesitation; insulating walls from the inside is fundamentally wrong and resorting to this type of insulation is necessary only in extreme cases, when there are no other options.

  1. It is advisable to insulate walls, both from the outside and from the inside, in the warm season, when the wall is as dry as possible.
  2. If you have any cladding on the outside of your home, you need to make sure that there are vents between the cladding and the wooden wall that will allow your wall to dry out somehow.
  3. Before installing insulation from the inside, carefully treat the wooden walls of the house, because after insulation the wall will have a microclimate of increased danger to the wood and excess impregnation will not harm.
  4. If you are planning to sheathe the inside of the walls with plasterboard, then when installing the sheathing, take into account the dimensions so that you do not have to construct additional fastenings for the plasterboard.
  5. Do not use foam plastic for insulation from the inside, do not fall for its cheapness and excellent qualities as insulation. For interior work he doesn't fit.