Most of the built panel and brick houses did not provide for insulation of facades. Concrete and brick have high density and low thermal insulation properties. The consequence is cold walls and uncomfortable temperatures. There are several ways to insulate from the inside, the main thing is to avoid the appearance of dampness.

Dew point - physics of the phenomenon

A cold wall is not the only drawback of panel or brick houses. Often dampness and accompanying fungus and mold appear on it. The best way to combat this is to insulate the wall from the outside (this is also a requirement of SNiP), but this is not always possible. Therefore, we have to deal with the cold wall by insulating it from the inside. But there are pitfalls here.

Even if the cold wall was previously dry, when insulating it from the inside, dampness may appear. And the so-called dew point will be to blame.

The dew point is a conditional boundary at which the temperature of water vapor becomes equal to the temperature of condensation formation. It naturally appears during the cold season. With proper design of the house (taking into account the characteristics of the region), it is located approximately in the middle of the thickness of the facade made of a material of uniform density.

If insulation is carried out from the outside, the dew point shifts towards decreasing density (that is, towards the outer surface of the wall). When insulating from the inside, it moves inward, and condensation may appear on the surface of the main wall or inside the insulation.

And to assess the scale of possible damage, it is enough to say that as a result of the life activity of one person, about 4 liters of water evaporate per day (cooking, wet cleaning, personal hygiene, washing, etc.).

Features of insulating a cold wall from the inside

There are several ways to prevent condensation from appearing on an internally insulated wall:

1. Creating a layer of heat-insulating material with vapor permeability lower than that of the facade material.
2. Insulation using materials with minimal water absorption.
3. Application of ventilated facade technology (taking into account internal placement).

Liquid thermal insulation

Polyurethane foam

PPU insulation meets all requirements for vapor barrier, water absorption and absence of seams. Therefore, even if there is a dew point inside the layer, it will remain “conditional”, since there is no condensation in vapor-tight materials. This results in a completely sealed thermal insulation layer on the room side.

The environmental friendliness of polyurethane foam after hardening meets the requirements for residential premises. Harmful fumes are present only when the components are mixed during the spraying process - after polymerization, the structure of the material remains stable.

Apply thermal insulation between the sheathing and sew up with moisture-resistant sheet materials(gypsum board, OSB or plywood). Essentially, it's like a large prefabricated sandwich panel.

The disadvantage of this method is the use of special equipment.

Liquid ceramics

This is a relatively young thermal insulation material, the action of which is based on the use of two principles - the creation of a thin layer with high resistance to heat transfer and the reflection of heat towards the radiation source.

Of course, a thin thermal insulation layer cannot provide good thermal insulation- This is an auxiliary, but mandatory factor. Although it gives a fairly high effect - the wall becomes much “warmer” to the touch.

The main task of reducing heat loss is performed by microscopic ceramic spheres that reflect infrared radiation.

According to the manufacturers, the effect of a 1.5 mm layer can be compared with thermal insulation with 5 cm thick foam plastic or 6.5 cm mineral wool.

The application method is the same as for acrylic paint(the basis is the same). After polymerization, a dense and durable film is formed on the surface, and latex additives improve waterproofing properties.

Rolled thermal insulation

Penofol

Penofol is a combination of polyethylene foam and aluminum foil. This is a whole series of materials (including single-sided, double-sided, laminated, with an adhesive layer). Moreover, it can be used both in combination with other heat-insulating materials, and independently. By the way, penofol is popular for insulating a bathhouse from the inside, and there is much more steam there than in an ordinary living room.

To insulate a cold wall, use penofol with one layer of foil (one-sided) and up to 5 mm thick.

In the case, as with liquid ceramics, the effect is achieved due to the low thermal conductivity of foamed polyethylene, as well as its low vapor permeability and high reflective properties of foil (up to 97%).

But unlike seamless coatings, complete sealing and prevention of cold bridges cannot be achieved. Consequently, condensation may form on the surface of the foil. Even the obligatory sealing of the joints with adhesive aluminum foil will still leave gaps inside between adjacent sheets.

The traditional method of combating the formation of condensation on foil is lathing with a ventilated gap between the penofol and the outer cladding.

Polyph

Another version of foamed polyethylene, but already made in the form of a kind of wallpaper - there is a layer of paper on both sides. Polyfoam and is intended for gluing wallpaper onto it.

Of course, its thermal insulation properties are not as high as those of penofol, but they are quite sufficient to make a cold wall feel warmer to the touch.

In most cases, the insignificant thickness of the insulation does not lead to the dew point moving to the inner surface.

The disadvantage of this method is that only a dry wall is insulated.

Insulation with polystyrene foam

Expanded polystyrene (or extruded polystyrene foam) is glued to the prepared and leveled wall. Both materials have very low water absorption (especially extruded polystyrene foam), so the formation of condensation in the insulation layer is excluded. The main danger is its appearance on the surface of the insulated wall.

Therefore, it is best to glue the sheets to special hydrophobic adhesive mixtures applied over the entire surface of the sheets. And to prevent the penetration of water vapor from the side of the room, treat the seams with sealant (you can also use polystyrene foam with a step or a tongue-and-groove connection).

Finishing can be done in two ways:

• mesh reinforcement and plaster application;
• paneling by supporting frame, fixed to the floor, ceiling and adjacent walls (false wall made of plasterboard).

Insulation with mineral wool

Mineral wool does not meet the requirements for vapor permeability and water absorption for insulation from the inside. But it can be used.

The main thing is to provide maximum protection against humid air from the side of the room and weathering of water vapor from the insulation layer. That is, create a ventilated facade, but in the reverse order: wall, gap, vapor-permeable membrane, mineral wool, vapor barrier film, decorative cladding indoors.

It is necessary to create a false wall at a distance of 2-3 cm from the main wall. And to ventilate water vapor, make ventilation holes at the bottom and top.

Recently, with the constant increase in energy prices, people are trying to insulate their apartments. This procedure really allows you to save on heating and make your home more comfortable, but at the same time it must be performed correctly so as not to encounter a number of problems later. Therefore, in this article we will look at how to insulate the walls of an apartment inside, and whether there is any point in doing this at all.

Is it worth insulating walls from the inside?

It is, of course, much easier to insulate walls from the inside than from the outside. However, I will immediately note that this is far from the best solution for a number of reasons:

• After installing thermal insulation, the walls will stop warming up altogether, as a result of which will form between them and the wall. This in turn can lead to the formation of mold and even cracks on the walls;
• when the insulation is located from the inside, it is not possible to insulate the ceiling, as a result the ceiling also turns out to be “cold”, and condensation can form on it;
• insulation from the inside takes away living space . IN big apartment this, of course, will be practically unnoticeable, but for the “Khrushchev”, where every square centimeter counts, the usable area is reduced significantly.

This raises the question - why carry out internal insulation at all if it has so many shortcomings? The fact is that it is not always possible to insulate the walls from the outside. For example, if the facade of your house faces a central city street or square, then local authorities are unlikely to allow you to change its appearance.

In addition, sometimes it is not possible to carry out external insulation for technical reasons, for example, if the wall is adjacent to an unheated elevator shaft. Thus, it makes sense to insulate the walls from the inside in an apartment in the following cases:

• if it is not possible to place the insulation outside;
• if internal insulation is used as an addition to external insulation. Even if the additional insulation on the walls is quite thin, the inside of the home will become much more comfortable.

After insulating the walls from the inside, it is necessary to ensure high-quality ventilation of the room, since the apartment essentially turns into a large sealed thermos. This in turn will lead to increased humidity and deterioration of the microclimate.

In other cases, it is better to insulate the apartment from the outside.

Insulation technology

The process of insulating walls with your own hands from the inside includes several stages:

Each of these stages has its own nuances, which we will look at below.

Preparation of materials

Insulation work must, of course, begin with the preparation of materials. Since people are often interested in what is the best way to insulate a home from the inside, I will say a few words about insulation.

In principle, you can use any thermal insulation material, since their degree of thermal conductivity varies slightly. However, it should be borne in mind that the material will not be located in the home, but outside it. Therefore, it is better to refuse polystyrene foam, but mineral wool is good decision– this heat insulator is much more environmentally friendly, and also fireproof.

In addition to insulation, you will need the following materials:

• vapor barrier film - prevents moisture from penetrating into the insulation. If it is not used, the insulation will become saturated with water, which entails a number of negative consequences;

• material for mounting the frame - this can be wooden beams or boards. However, most often they use a regular profile for installation. In this case, you will also need brackets and guides;
• plasterboard or other material for covering the frame (lining, plastic panels, etc.)

To purchase all these materials, you need to first calculate the square footage of the walls. Knowing the price of each material, you can calculate the costs of internal insulation in advance.

Preparing the walls

So, we figured out how to insulate the walls of an apartment from the inside. Now let's get to work.

As mentioned above, before insulating a wall from the inside in an apartment, it must be prepared. This is done as follows:

1. first of all, it is necessary to remove the old covering from the wall - wallpaper, tiles, etc. If the wall is covered with gypsum putty or plaster, it is also advisable to remove it.
   As mentioned above, moisture will form between the wall and the insulation, as a result of which the plaster will become wet, and this will not lead to anything good. You can remove the plaster using a chisel and hammer or a hammer drill turned on in impact mode.

1. then be sure to treat the wall with antiseptic agents that will prevent mold from occurring. Instructions for using drugs are usually included on the packaging.

To achieve maximum effect from insulation, it is necessary to insulate the ceiling, i.e. ceiling that will be adjacent to the frozen wall. This can be done using the wet method - gluing mineral wool slabs and additionally securing them with dowels. The surface of the insulation is plastered, on our portal you can get detailed information about how this is done.

This completes the preparation process.

Arranging a ventilation gap

The process of arranging a ventilation gap is carried out at the stage of waterproofing the walls. It should be noted that many construction sites offer thermal insulation from the inside without a ventilation gap.

The big disadvantage of such a scheme is that moisture inevitably forms between the wall and the insulation, which does not go away, which leads to the destruction of the wall. Therefore, it is better to refuse its implementation.

The arrangement of the ventilation gap is carried out in the following sequence:

1. attach to the walls wooden slats about two centimeters thick. They can be placed horizontally in increments of about a meter. You can attach the slats to the walls with dowel nails.
   The slats must first be treated with a protective compound so that they do not rot in a humid environment;
2. then you need to make several holes in the wall so that ventilation gap worked. To do this, drill holes with a diameter of about 20 mm. To prevent the holes from becoming clogged, they must be protected with a mesh;
3. then a vapor barrier film is attached to the resulting sheathing. Moreover, it should be positioned stretched so that a ventilation gap is formed between the wall and the film.

To drill holes from the inside in a panel house for dowel-nails, you should use a hammer drill with a Pobedit drill.

Frame installation

The frame is vertical racks, which are located in increments equal to the width of the heat insulator slabs. To ensure that the insulation fits securely to the studs, the step between them can be made even a centimeter less than the width of the insulation.

The frame assembly process is as follows:

1. First of all, mark the walls according to which the racks and guides will be located. It should be noted that the distance between the wall (vapor barrier in our case) and the guides that will be mounted on the ceiling and floor must be no less than the thickness of the heat insulator so that the insulation can fit inside the frame;
2. Next, brackets are attached to the vapor barrier slats according to the markings, which will hold the racks. Multiple brackets should be used for each rack. For installation of the latter, self-tapping screws are usually used;
3. then guides for the racks are attached to the floor and ceiling. They must be located exactly opposite each other so that the racks stand vertically. Therefore, before installing them, you should make sure that the markings are accurate;
4. Next, the racks are inserted into the guides and fixed with brackets, as shown in the diagram above.

To cut a metal profile, you can use special metal scissors.

The same principle is used to install a frame made of beams. The only thing is that in this case, guides are not used, so the racks are installed simply according to the markings.

Installation of insulation is extremely simple - if the racks are positioned correctly, then the mineral wool slabs are simply inserted between them, and no additional fixation is required. The only thing to avoid cold bridges is to fill the space between the wall and the studs with insulation.

To do this, you can cut the mineral wool into strips of the required sizes. You can cut the slabs with a regular hacksaw.

Mineral wool fibers getting on the skin and especially the eyes cause severe irritation. Therefore, when working with it, use personal protective equipment.

If gaps form between the mineral wool slabs, they must also be filled with insulation. In addition, it is necessary to ensure a tight fit of the mineral wool to the floor and ceiling. I note that these, at first glance, little things should not be neglected, since the effectiveness of insulation largely depends on them.

After the insulation has been laid, another layer of vapor barrier should be secured to the frame. If the frame is wooden, then you can use a construction stapler to fix it.

If the frame is metal, the vapor barrier can be temporarily fixed with tape. Subsequently, the film will be secured with the covering material.

On forums, people are often interested in how to insulate a wall from the inside in a corner apartment? In fact, the technology is no different.

Frame covering

As a rule, the frame in an apartment is covered with plasterboard. Therefore, finally, I will briefly describe the technology of its installation and further finishing:

1. work should begin by cutting drywall into sheets of suitable size. To do this, apply markings to the sheets, then cut the cardboard on one side along the marked line with a mounting knife, then break the sheet, and then cut the cardboard on the other side;
2. the prepared sheets should be attached to the frame using self-tapping screws, which should be located at a distance of 5-10 cm from each other. The caps of the screws must be recessed;

1. then at the joints of the sheets you need to cut a chamfer 5 mm wide. If the end is rounded, there is no need to cut the chamfer;
2. then a special self-adhesive mesh is glued to the seams between the sheets;

1. then the heads of the screws and the joints between the sheets are covered with gypsum putty;
2. After this, the entire surface of the walls is puttied. On our portal you can find detailed information on how to properly perform puttying;
3. then the surface is polished with a special grater, onto which a mesh is put:
4. after this another layer is applied finishing putty and final sanding is performed.

Sanding must be done in bright light. In this case, you will see all the flaws that need to be eliminated.

This completes the process of covering and finishing the wall. Now you can paint it or, for example, put wallpaper on it.

If lining or wooden panels are used as cladding, then they are simply attached to the frame with self-tapping screws. Accordingly, it takes much less time to cover.

Here, in fact, is all the information on how to insulate the walls of an apartment from the inside with your own hands.

Conclusion

I told you how to insulate walls inside with minimal negative consequences. Therefore, do not try to simplify the process and deviate from the technology outlined above. Compliance with it will allow you to make your apartment truly warm and cozy.

See the video in this article for more information. If you encounter any difficulties during the insulation process or some points are unclear to you, ask questions in the comments, and I will be happy to answer you.

If you want to express gratitude, add a clarification or objection, or ask the author something - add a comment or say thank you!

If you have experienced the purchase or sale of apartments, then you have noticed that buyers do not really like corner apartments or rooms. What is this connected with? Although it is much easier to ventilate such an apartment in summer, the view from the windows opens on two or even three sides.

But there is one significant drawback. Very often, with the arrival of frost, residents of corner apartments suffer from insufficient heat. If the temperature outside is around zero, and heating season has not yet begun, uncomfortable conditions are being created inside such an apartment. It appears, the windows fog up, the floor becomes cold, and the bed becomes damp.

The main reason for this is the presence of three walls that have access to the outside and are therefore most susceptible to low temperatures. In winter, even if available central heating, the situation is only getting worse.

The walls can freeze completely, especially in the corners, the interior decoration will begin to fall off, and mold and mildew will appear. Staying in such an apartment will not only be uncomfortable, but also unsafe, especially for children. After all, they are most susceptible to the occurrence of diseases caused by.

What to do in such a situation? Many people try to install additional heating radiators, but this, most often, does not solve the problem or solves it, but not completely. Dampness moves to the ceiling, forming places where mold accumulates.

What is the right thing to do in such a situation? The best solution is that you need to try to insulate the walls. How can this be done? How to do it? We'll try to figure it out now. What is the best way to insulate the walls of an apartment from the inside? First, let's look at what types exist.

Today's market thermal insulation materials extensive, represented by a variety of products. All of them are divided according to the place of their installation: outside the wall or inside the room.

Each of them has both disadvantages and advantages. When installing any of them, you must strictly follow the manufacturer's instructions.

When buying a heat insulator, you should pay attention to the following parameters:

• heat conductivity;
• air permeability;
• waterproofing properties;
• environmental safety;
• fire resistance;
• operating time.

Using high-quality material, you can insulate a corner without any problems. What is the best insulation for walls inside an apartment? What is the best way to insulate walls from the inside?

Minvata

This heat insulator is the most popular; it is made from basalt fiber. He has wonderful thermal insulation properties, allows good air ventilation, but does not tolerate excess moisture. This material has a high degree of fire safety and does not emit toxic substances when exposed to direct fire.

When installing mineral wool, special guides are used, and the installation process itself does not require much effort, since light material and elastic. Is it possible to insulate walls with it? But over time, these qualities can cause it to lose its shape.

The environmental component is also ambiguous - the material emits a small amount of harmful gases. Some people do not use it because of the significant weight gained during installation of the structure.

Polystyrene foam insulation

The name speaks about the process of its creation. That is, the material is created by foaming polystyrene under high pressure. The price of such material is quite affordable, it is easy to assemble and install, which makes it a popular heat insulator.

It has good thermal insulation properties, it is environmentally friendly and safe. It can be used for interior work, and for external ones. It can be mounted on walls made of any material.

The process is quite simple and not labor-intensive. The advantages include its huge service life. But of course there are also disadvantages.

So, due to poor water permeability, on wooden walls Condensation can accumulate, which leads to their destruction, and it is also highly flammable. The insulation of a concrete wall from the inside can be carried out perfectly using this material.

Extruded polystyrene foam

This material is the most popular insulation. It is elastic and easy to process. The disadvantages include the difficulty in joining sheets.

There is a material on sale in which the edge is made in the form of protrusions, which makes it much easier installation work.

has good moisture resistance, it is lightweight, convenient for installation work.

Use of polystyrene foam

This is an excellent material for insulating apartment walls. It contains more than 95% gas, so it is an excellent heat insulator.

It is distinguished by its low cost, excellent waterproofing, and fire safety. Polystyrene foam is used at any temperature, being an environmentally friendly material.

Application of keramoizol

This is a relatively new material. It is sold in containers of various sizes, as it represents liquid material. Has excellent thermal insulation properties. Keramoizol is a durable, waterproof and vapor-tight product.

During installation, several layers are applied, and for better thermal insulation- six. The layers are laid perpendicular to each other. This material has proven itself only with the best side.Its only and main disadvantage is its high price.

Penoizol insulation

Thermal insulation material - penoizol is a type of polyurethane and is used in the form of foam. The advantage is the quick installation of the material in a brick building., forming a layer required thickness heat insulator, no seams or joints.

Excellent thermal insulation and waterproofing properties, the material is non-flammable and environmentally friendly. But perhaps its main advantage is low cost work, almost two times less than when using conventional materials.

Using Astratek

Asstratek is a suspension; solid particles are represented by various polymers. To apply to the wall, use a spray gun or install it manually paint brush. Excellent insulation, just one centimeter of layer is similar to fifty centimeters of a mineral wool slab.

Does not take up the interior space of the room, forms a smooth, uniform surface that requires minimal processing for applying the cladding. The main limiting factor for large-scale application is its high cost.

How to insulate the walls in an apartment from the inside? It's up to you to decide.

How to insulate walls in a panel and monolithic house?

How to insulate walls from the inside? How to insulate concrete wall from the inside? How to do this correctly? To insulate a wall from the inside, consider step by step instructions insulation of walls and partitions in a panel house from the inside.

Algorithm of actions:

• First you need to prepare the walls. To do this, you need to remove furniture, clean the walls of finishing material before plaster. Therefore, this procedure should be combined with repair work in your apartment;
• next must be done. It is best to use special polymers, but you can also use regular ones. plastic film. It is applied directly to the walls, the places where the strips are fastened are glued. To do this, use construction tape;
• Next we install the sheathing; you can use both wooden and metal guides. In the first case, the tree must be treated with antiseptics and fire-fighting solutions. When installing the sheathing, the step size must be selected depending on the insulation, so as not to form gaps and voids;
• then we directly lay the heat insulator, that is, we insulate the walls. It should fit into the openings between the sheathing. Many materials are designed in such a way that during installation they expand and fill the entire form, this significantly reduces installation time;
• installation . By installing it, we protect our insulation from wet steam, which is always present in the apartment. Under no circumstances should these measures be neglected, as moisture will begin to accumulate in the insulation. As a result of this, the product will lose its properties, and all your work will be lost.

The vapor barrier film is laid without gaps or omissions, the joints and cracks are treated with sealants;

• installation . It is necessary to choose a material suitable for installation in residential premises. When installing sheets, it is important to follow the instructions, and then you should do the necessary procedures for installing facing materials.

How to insulate the walls of an apartment from the inside? Insulate a corner apartment in a panel or monolithic house you can by following these six steps.

Installing insulation on brick walls

How to insulate brick walls inside an apartment with your own hands? Corner walls V brick house can be insulated using the same method as in a panel one. Therefore, we will analyze the work of installing material made from polystyrene.

Insulating a wall in an apartment from the inside:

• clean the walls down to the plaster. If it is missing, then it should be applied. After this, the walls must be leveled, cracks repaired and then treated with a primer;
• you need to prepare the glue according to the manufacturer's recommendations and apply it to the walls that you will insulate. In the beginning, you can use a regular spatula. You need to apply glue to the walls, then take a notched trowel and go around the entire perimeter again. This is done in order to create an uneven surface of the glue. This promotes better adhesion of the insulation;
• how to insulate a wall in a corner apartment from the inside? Next, we take sheets of thermal insulation and begin installing them on the walls. First of all, the very bottom row is laid. We apply the polystyrene sheet tightly and press it through; you do not need to use dowels or other fastening materials. When installing, use a level and carefully join the edges so that no gaps form; if necessary, cut the sheets. The next row is installed so that the junction of the two sheets is in the middle bottom sheet. This will give greater durability to the entire structure.

Watch the surface of the insulation so that no unevenness is formed, because this will bring additional difficulties during final finishing.

• After you have installed the thermal insulation, you can begin finishing works. If you plan to cover the walls with plasterboard, then some additional work over insulation is not required. If you plan to cover it with a layer of plaster, putty, wallpaper, or paint, then you need to treat it with a primer, then install a mesh of reinforcing fiber. After this, you can begin to apply layers of plaster or putty.

By following these steps, you can insulate corner room from the inside.

Insulation of walls using the “electric floor” method

How to insulate a wall in an apartment from the inside according to this method? Insulation of the apartment from the inside is carried out as follows. First of all, you need to attach the “” sheets to the wall using fastening materials.

After this, we connect the sheets to electrical network apartments. In the most severe frost, we turn on the system and warm up the walls until they are completely dry. After this, we lay thermal insulation to prevent heat loss. Then you can start tiling the walls.

So, if you decide to insulate the walls of a corner apartment, you need to choose a material based on the type of walls and the price range of the heat insulator. Then it is important to consider the method of installation and subsequent cladding.

You should also pay attention to the following aspects:

• installing insulation reduces the volume of the room;
• poorly performed work can lead to mold;
• For comfortable life ventilation must be installed.

By strictly adhering to the rules, you can insulate your apartment and create comfort in it. Insulating the walls of an apartment from the inside is a fairly simple process.

AND inside(you can insulate the front, back, end wall) is carried out according to the instructions. An insulated corner apartment is great because you can enjoy comfort.