What is the best way to insulate walls from the inside? Insulation of walls inside the house. Calculation of insulation thickness

The question of whether it is worth insulating the walls of a house from the inside still does not have a clear answer. Some experts are ardent opponents of this option. Others, on the contrary, believe that such a solution will create the most comfortable conditions for people’s lives. It is worth noting that both are right. Everything depends on the specific situation, according to which this or that decision should be made. But even before starting work on insulating the walls of a house from the inside, it is important to study the features of the process and select a safe material.

Main advantages

Insulating the walls of a house from the inside is especially important in apartment buildings. It is sometimes the only option for creating comfortable conditions in those rooms that are adjacent to unheated, cold technical rooms or a staircase. You can also insulate walls from the inside in a private house. Such a solution will preserve the original appearance of the facade or increase the amount of heat that will be stored in the building.

Such work refers to non-traditional technologies. Most often, they are recommended in cases where it is simply impossible to arrange external insulation. These are, for example, the same high-rise buildings. After all, sometimes it is very often necessary to maintain heat in the premises of a panel house. Insulating the walls in an apartment from the inside will be the only option when the work can be carried out independently, in the shortest possible time and without obtaining the appropriate permits that are necessary when arranging the facade. As a result, the comfort of housing will increase, and the owners will forget about such troubles as fungus and mold.

Possible problems

Despite certain advantages, insulating the walls of a house from the inside also has a number of disadvantages. It was they who became the reason for the emergence of opponents of this decision. Thus, the presence of insulation on the internal walls of a building contributes to the emergence of such problems as:

-Walls exposed to cold. After all, the supporting structure of the house does not get rid of contact with outside air. This leads to its rapid destruction. Cracks begin to appear on the surface of the walls, because their insulation from the inside takes away a certain part of the heat. And if before the activities the external structures of the building were heated from the inside, then upon completion of the work this process stops.

-Condensation. As you know, droplets of moisture form on a cold surface in contact with warm air. This phenomenon is called the “dew point”. The main goal of thermal insulation of a house is to move such a point beyond the outer structure. Insulating walls from the inside in a private house or in a high-rise apartment leads to the formation of condensation at the boundary between the insulation and its surface. In this regard, the process turns out to be hidden from the owners, and they simply do not notice it. Walls with high humidity become an excellent place for the growth of mold and fungi.

-Reducing the area of ​​rooms. Today, the construction industry produces various types of the most modern materials with fairly high efficiency. However, she has not yet come up with one that, while maintaining high technical characteristics, would be very small in thickness. Insulating a house from the inside will take away from the premises 5 to 10 cm of their space, which will significantly reduce the usable area. At first glance this is not too noticeable. But if you calculate it over the entire building, the figure will be quite impressive.

Based on all of the above, before starting work on insulating the walls of a house from the inside, it is advisable to carefully consider the negative aspects of such a decision. It is necessary to get rid of possible problems already at the initial stage, because otherwise the negative result will become noticeable already in the first years of such operation.

Materials

What allows you to use technology that involves insulating the surface of walls from inside the building? These can be a variety of materials, each with its own characteristics, advantages and disadvantages. As a rule, the most popular insulation options for such work are mineral wool and foam plastic, penoplex, as well as slabs made from wood fiber. Let's take a closer look at their advantages and disadvantages.

Styrofoam

Very often, owners who decide to insulate a house from the inside opt for this material. After all, it is quite effective and, importantly, has a low cost. As a rule, 5 cm of such a protective layer is sufficient to ensure a comfortable microclimate in the premises.

Foam plastic is most often used to insulate walls in apartments in multi-storey buildings. The use of this material allows installation to be carried out quickly, without additional tools and complex processing.

Among the disadvantages of polystyrene foam are the following:

Low strength;

Flammability;

Poor vapor permeability.

The latest forecast helps turn the house into a real greenhouse. In order to avoid this problem, you will need to install forced ventilation, which will require additional labor and financial costs.

Penoplex

The closest relative of foam plastic is extruded polystyrene foam, also known as penoplex. Externally, these two materials are very similar to each other. However, penoplex boards are orange, not white. In addition, it is more durable, which determines its durability.

However, the disadvantages of polystyrene foam in the form of flammability and poor vapor permeability of this material still remain. Insulating the internal surfaces of the walls when using it will not allow the house to “breathe”, which will require the installation of forced ventilation.

Is it possible to use polystyrene foam to create comfortable indoor conditions? Yes, but you will need to prepare in advance for possible problems and eliminate them in time.

This option is more acceptable for a house, as well as one built from lightweight concrete. As for wood, it is usually chosen for the construction of buildings for its ability to “breathe”. But polystyrene foam and penoplex block air flows. This negates all the benefits of wood.

Mineral wool

These insulation materials are also widely used for interior cladding. What is attractive about this material is its inexpensive price. Experts recommend using mineral wool in hard slabs to insulate the inside of a house wall. This material is easy to install, non-flammable and highly durable.

Rolled products are produced under such brands as Rockwool, Knauf, and Izover. She has good:

1. Thermal conductivity. This allows the use of a thin layer of insulation.
2. Soundproofing. The use of glass wool provides excellent protection against street noise. Such properties of the material are facilitated by the air gap between its fibers.
3. Vapor permeability.
4. Tensile strength.
5. Resistant to biological influences, for example, to rodents.

This insulation is also supported by its high service life. It has been successfully performing its functions for fifty years. In addition, mineral wool has low density and light weight.

However, it is worth keeping in mind that this material perfectly absorbs water, after which it ceases to function according to its intended purpose. To prevent this from happening, provide a vapor barrier and waterproofing in the form of a film or membrane. The first protects the insulation from the side of the incoming warm air, and the second - from the cold air.

Fiberboard

Insulation from the inside can be carried out using They have:

Good noise absorption and thermal insulation;

Unattractive to rodents and insects;

Good resistance to moisture and temperature changes;

Easy to process using any tools;

Easy installation;

Convenient for wiring.

However, it is worth keeping in mind that fiberboard boards are subject to treatment with toxic substances. This poses a danger to humans. That is why this material is most often used for exterior decoration.

Insulation of frame houses

Anyone who has decided to improve the comfort of their home will need to check its condition. If any defects are detected, they will need to be eliminated before work begins. Insulating the walls of a frame house from the inside will require cleaning them and removing foreign objects. An important point will also be getting rid of gaps in structural elements. To do this you will need to use polyurethane foam. If the wood of the walls is damp, then it is dried using a hair dryer.

When insulating the walls of a house from the inside with your own hands, you will need to go through two stages. The first of these is the installation of waterproofing. The second stage involves laying a layer of thermal insulation.

The waterproofing is pre-cut into strips corresponding to the size of the walls and attached to them. Next, the insulation is laid, placing it between the racks of the pre-arranged sheathing. The material selected to create a comfortable temperature in the room is pre-cut into strips corresponding to the area of ​​the walls. At the same time, their size may exceed the required by 5 cm. This nuance allows you to lay the insulation more tightly. This will increase the effectiveness of its use.

Insulation of wooden houses

Work in such buildings begins with the installation of sheathing, which is installed on the load-bearing walls. In this case, it is recommended to use timber. Insulating the walls of a wooden house from the inside using a metal profile makes sense in cases where in the future they will be covered with moisture-resistant plasterboard.

To create even and regular corners, corner posts are prepared from timber with a section of 50 x 100 mm. Their height should be equal to the height of the room. Along the edge of such a beam, a second one with a smaller cross-section (50 x 50 mm) is reinforced with self-tapping screws. Such a solution will allow you to secure the selected material inside the created structure.

Insulating the walls of a wooden house from the inside will require their pre-treatment with a special liquid. This will protect the surface from rotting and burning.

The next stage of insulating the walls of a wooden house from the inside with your own hands is the installation of bars, which are attached in increments of 50 cm. After completing the arrangement of the sheathing, you can begin the process of attaching the material, which is most often mineral wool. The insulation is pre-cut to the height of the walls with a width exceeding the distance between the vertical parts of the structure by 2 cm.

Mineral wool is secured inside the sheathing with anchor bolts. It can be laid in 2 layers, between which the film should be placed.

After fixing the heat insulator, bars measuring 30x40 mm are mounted. Next, the sheathing is carried out using a decorative material chosen by the owners, which could be, for example, lining. By the way, it will allow you to additionally insulate the house. At the same time, the interior will look very attractive.

Insulation of panel houses

In order to create a comfortable temperature in such a building, mineral wool is usually used. In addition, insulation of walls in a panel house from the inside can be done with penofol and fiberboard, polyurethane foam and balsa wood.

How is such work carried out? Insulating walls in a panel house from the inside will require cleaning them of old coatings. You can use a vacuum cleaner to remove dirt. The surface should be treated with a primer and antiseptic. After applying the next layer, the wall should be allowed to dry thoroughly. At the next stage, the surface is leveled with plaster, with all joints covered with mastic, sealant or moisture-resistant solution. Only after this they begin to arrange the heat insulator. The work is completed by installing the facing material, onto which the final finish is applied.

Insulation of brick houses

Buildings made from this material are distinguished by durability and strength. However, brick retains heat much worse than, for example, wood. In order to maintain a comfortable temperature in the premises, you will need to protect the walls from the cold.

Very often, owners insulate walls with isover from the inside in a brick house. is on the list of one of the most popular materials for performing such work. However, it is worth keeping in mind that you cannot leave it open. After all, over time, mineral wool will begin to emit dust, which negatively affects the health of residents. If a brick house using this material is insulated correctly, then no problems will arise in the future. In this case, you will only need to waterproof the insulating layers, since they easily absorb moisture, get wet, and as a result lose their properties.

To install an insulating layer of mineral wool with your own hands, you will need to prepare the following materials and tools:

Wooden slats;

Mineral wool;

Film for waterproofing;

Vapor barrier film;

Plaster;

Primer;

Putty knife;

Plywood or drywall.

Installation of mineral wool is carried out after thorough preparation of the walls, which are plastered and primed. There is no need to level such a surface, because later the sheathing will be mounted on it.

After the walls have dried, a layer of waterproofing is attached to them. Next, they begin to form the sheathing, which is made from wooden slats, fastening them together with screws. At the next stage, insulation is installed. A vapor barrier film is placed on top of it and the sheathing slats. This structure is covered with sheets of plasterboard or plywood. The joints of the facing material are sealed with putty.

Frosts are rapidly approaching, and the temperature in many apartments is far from the most comfortable. We are forced to wear warm clothes, buy heaters, and sleep under several blankets, which causes discomfort. What to do if it’s cold in the apartment? It is quite possible to solve this problem yourself.

What to do if the apartment is cold

Cold batteries in the apartment: what to do?

High-quality radiators are the key to warmth and comfort in the house. If the radiators are many years old and the apartment is cold in winter, it may be worth replacing them. But before you run out for an expensive purchase, do a survey: sometimes the batteries do not heat up due to air locks or due to the negligence of utility services. We told you where to complain if it’s cold in your apartment.

Many modern radiator models are manufactured with, so you can set the appropriate temperature. High-quality heating appliances can last faithfully for decades, so after spending just once, you will forget about cold radiators in the house for a long time.

There are several types of radiators:

• Cast iron is the most classic option, which has been used for heat supply for more than a hundred years. Cast iron batteries are durable, resistant to corrosion and have high heat transfer. They are not afraid of hard, poor-quality water and pressure changes. The disadvantages of cast iron radiators include bulkiness and unaesthetic appearance. However, the modern design of these batteries with monograms and original coloring will fit well into a classic-style interior.
• Aluminum - durable, lightweight and elegant heating devices. Ease of installation, optimal price and high heat dissipation make aluminum batteries an ideal choice for many. However, this type of radiator is susceptible to corrosion with a high alkali content in the water.
• Steel radiators are often used to supply heat to private homes and offices. They have excellent heat dissipation and corrosion resistance. Their disadvantage is their sensitivity to water hammer - sudden changes in pressure in the pipe.
• Bimetallic The radiator, in simple terms, consists of a steel core and an outer aluminum layer. This design is optimal for city apartments: the steel pipeline is not subject to corrosion, and aluminum, which has good thermal conductivity, perfectly supplies heat to the room. However, all these advantages are overshadowed by the high cost of the product.
• Copper batteries provide effective heating of the room due to their thermal conductivity - it is much higher than that of aluminum and even more so than that of steel and cast iron. But the price of copper radiators, as well as bimetallic ones, will not please everyone.

The choice of radiator depends not only on your tastes and financial condition, but also on compatibility with your heating system. Therefore, before purchasing, you should determine whether the characteristics of the heating device (pressure, permissible temperature, heat transfer, etc.) correspond to the characteristics of the heating system.

Insulating an apartment from the inside most often becomes necessary in houses with panel walls, since they are not thick enough, quickly cool down, the heating system cannot fully cope with its tasks, and the temperature in the rooms drops. How to insulate a wall inside an apartment, and what methods and materials to use - this question faces the majority of homeowners in concrete high-rise buildings. The outer walls in such houses become cold especially quickly, and often due to temperature changes they begin to become damp and covered with mold.

Sometimes, when there is such a possibility, the walls are thermally insulated from the outside, since this — more efficient way heat preservation. However, this option is very expensive due to the complexity of its implementation, and it is impossible to carry out such measures independently, without the use of special equipment, if the apartment is located above the first or second floor. Therefore, a decision is made to insulate the walls from the inside, to the detriment of the total usable area. But, be that as it may, a warm apartment with a slightly smaller area is better than large, cold rooms. Internal work can easily be done with your own hands, without the involvement of specialists. The main thing is to choose the right material and have the right tools.

If the apartment has autonomous heating equipment, then insulating the walls will help save energy resources, which are very expensive today.

Disadvantages of internal insulation

Compared to external thermal insulation of walls, internal insulation of an apartment has its rather significant disadvantages:

• An insulated wall does not accumulate or retain heat, and heat losses range from 8 to 15%.

• The “dew point” for internal thermal insulation is located between the insulation and the wall, sometimes inside the insulation layer. This leads to the formation of condensation and the appearance of mold colonies .
• A wall that is improperly insulated from the inside will freeze all the time, and this inevitably causes, over time, irreversible destructive processes in the thickness of the material.

Proper insulation

To prevent condensation from forming under the thermal insulation layer due to temperature changes in winter, and also, as a consequence, to prevent mold spots from appearing on the walls, you must carefully follow all technological recommendations for insulating concrete walls from inside the apartment.

An important element in the structure of the thermal insulation “pie” is high-quality vapor barrier. It should protect the insulation from moisture penetration, which will allow the entire structure to effectively perform its functions for a long time.

What kind of work needs to be done to achieve the goal?

• It is necessary to purchase a high-quality vapor barrier film and waterproof tape to seal the seams at the connection of its sheets.
• For the insulating layer, you need to choose a material that has low vapor permeability. It is desirable that this indicator be lower than the vapor permeability of the wall material. In this case, moisture evaporation will occur towards the street, and not inside the apartment.
• When gluing insulation, its surface is completely coated with glue using spatula-comb, and it is pressed very tightly against the surface of the wall, so that there are not even small cavities left between them.
• To avoid the occurrence of excessively high relative humidity indoors, they must be equipped with additional natural or forced ventilation. For example, for this, valves are installed on window frames through which air will flow into the room.

• Next, you need to accurately calculate the required thickness of the insulation. It will depend on the average daily temperature in a given region in winter. The thickness of the thermal insulation material should not be less than the parameters obtained during the calculations, otherwise the steam-heat balance will be disrupted.
• Before installing the insulation system, the walls must be treated with special primers. They will “cure” the wall, prevent mold colonies from forming on it, and also increase adhesion when gluing thermal insulation.
• Installation of insulation can begin only after the wall has completely dried.
• The formation of “cold bridges”, which can negate the entire insulation process, should not be allowed. The risk of their occurrence is especially high at the junctions of walls and ceilings.

What insulation materials and how are they used?

Such a thermal insulator is made in the form of slabs or rolls from the bark of a special type of oak - balsa wood. Therefore, it is an environmentally friendly, safe insulation material, which is very important for interior decoration.

Using high-quality material, you can solve three problems at once - noise and sound insulation, as well as decorative wall decoration.

An important condition for installing cork covering is the evenness of the wall, so before you start gluing it, you need to carefully prepare the surface. This process is carried out as follows:

• The old coating is completely removed from the wall.
• Then the entire surface is treated, which will protect the wall from damage by fungus or mold.

• The next step is to level the surface.
• You can also decorate the walls with drywall, but in this case, the sheet must be completely coated with waterproof glue or foam, so that there are no voids left underneath. The drywall is pressed firmly against the wall and is additionally secured with anchors or plastic “fungi”.
• Cork material can be glued to a dry wall. To do this, use a special glue designed for such purposes.

The positive qualities of the material, in addition to its environmental friendliness, low thermal conductivity and good noise absorption, include:

• Easy installation of cork wall coverings, provided you are careful in your work.
• Aesthetically attractive respectable appearance.
• The surface of the material is always warm and pleasant to the touch.
• A variety of release forms, textured patterns and shades.

• Cork insulation is not very thick, so it does not make the area of ​​the room smaller - this quality sets it apart from other thermal insulation materials.

Penofol

Penofol at its core is a roll of foamed polyethylene with a thickness of 2 to 10 mm, on one side of which it is applied, which helps to reflect heat into the room.

• Before installation, the surface is prepared in the same way as for cork.
• Penofol can be secured to smooth walls using double-sided construction tape. Under any circumstances, the material is placed with the foil side facing the room. This creates a kind of thermos for effective heat retention.
• Stripes penofol laid end to end. They are glued together with special tape, which also has a foil reflective surface, since the entire coating must be airtight.

• A sheathing of slats, bars or galvanized metal profiles is installed on top of the penofol fixed to the wall. This frame with a base for installing lining or wall covering with plasterboard sheets. The plasterboard surface can subsequently be covered with plaster, wallpapered, or thoroughly puttied and sanded, and then painted.
• It is very important when installing drywall or lining at the top and bottom of the structure to leave a gap that will serve as a ventilation hole for air circulation to prevent moisture from accumulating.

Despite its small thickness, penofol is an excellent heat and sound insulator. It is used as a separate insulation, but it can also be used in combination with other materials. It attracts with its simplicity and speed of installation on walls, floors or ceilings, as well as its long service life.

Video: insulation of internal walls with foil material

Prices for thermal insulation materials

Thermal insulation materials

When choosing a material for insulating a living space from the inside, you must first examine all wall surfaces on which thermal insulation will be installed. If the wall is dry and there are no mold stains on it, then you can begin preparing the surface and purchasing insulating material. Carrying out such work on an unprepared basis is strictly prohibited. Not only will such insulation not give the desired effect, but it can thoroughly spoil the apartment atmosphere, making it damp and unhealthy, since spores of many types of mold or mildew are extremely dangerous to people’s health, especially for those suffering from chronic respiratory diseases or a predisposition to allergic reactions .

In general, any of the methods presented in the publication of an apartment from the inside will not require any complex additional equipment, and this technological process can be carried out independently.

As soon as we decide to insulate the house, a huge pile of questions appears in our heads:

• How to insulate walls?
• How to insulate walls?
• Which is better to insulate, outside or inside?
• Will the house become warmer, and won’t I be throwing money away?

In this article I will try to answer all these questions in as much detail as possible, and also talk about the currently popular materials for insulation.

How to properly insulate the walls of a house, outside or inside

Try asking any builder how best to insulate the walls of a house, outside or inside? The answer will be obvious. Everyone knows that it is necessary to insulate walls from the outside, and resort to thermal insulation of walls from the inside only in extreme cases. But at the same time, not everyone knows why thermal insulation of walls from inside the house is so undesirable.

Let's try to figure it out. The diagram shows three states of the house wall, with insulation on the outside, on the inside, and without insulation at all:

In ordinary human language, the dew point is the place where water vapor turns into water, thereby creating condensation.

If you look at the diagram, you can see that to the left of the dew point there is a positive temperature, and to the right - a negative one.

When insulating from the inside:

1. The wall remains unprotected by home heat, since the heat barrier made of insulation will not allow it to pass into the wall. Thus, in winter, it will be largely exposed to frost, constant moisture, and will not have time to dry, since we blocked the path from the inside with insulation to the heat that previously protected the wall.
2. At the dew point, condensation collects (water vapor in the air is converted into water droplets), this point will be as close as possible to the room, which means that the formation of moisture in this place will be maximum. As already mentioned, the insulation from the inside will interfere with the natural drying of the wall.
3. The constant formation of condensation, without natural drying, can lead to the appearance of various types of fungi and mold on the wall. Don’t console yourself with the thought that the fungus is behind the insulation and nothing bad will happen. Mold and various kinds of green-black formations on the wall have a detrimental effect not only on the appearance, but also on the health of the residents of such a house.
4. If you look at the diagram, you can see that even without insulation, there will be less moisture on the wall from the inside than with insulation from the inside.

When insulating from outside:

1. From the street side, the wall is protected by insulation from the cold, and given the insulation technology, from moisture, and from the room side - by home heat, which warms up the wall sufficiently and, even in cases of various types of condensation and moisture absorption by the wall, will contribute to its rapid drying.
2. We move the dew point away from the room towards the street, which means that we also move the condensation away from the room.
3. Insulating the outside will significantly preserve warmth and comfort in your home.

I think it has now become clear to everyone why everyone refuses to insulate the walls of the house from the inside, and more and more often resort to insulation from the outside. And it is necessary to thermally insulate the walls on the side of the room only if there is no other way out.

How to properly insulate walls with expanded polystyrene and extruded polystyrene foam (EPS) from the outside

I described in detail about insulating walls with polystyrene foam in one of the previous articles. Here I will mention some main points.

Preparing the wall for installation of insulation

The first thing you need to do before insulating the walls with polystyrene foam or EPS is to clean the outside walls of the house from dirt, dust and, last but not least, level them. After this, they must be primed if you use glue to install the insulation.

If there are significant holes in the wall that you cannot level with glue, then after installing the insulation, a void may remain between the polystyrene foam board and the wall. And this is extremely undesirable, because even a light blow or push on the insulation in the place where the hole is can deform it or break it.
If during the insulation process you encounter a small bump, it will be difficult for you to glue the polystyrene foam sheet in that place tightly to the wall.

Installation of polystyrene foam and EPS on the wall

Expanded polystyrene, as a rule, is glued to the wall using a special adhesive for polystyrene foam boards, and sometimes with special “fungi”.

In the case of insulation of extruded polystyrene foam (EPS), it is necessary to make the surface on which the glue will be applied rough. There are no such problems with polystyrene foam; the glue glues it well without additional processing, while EPS has a smoother surface, so it needs to be processed.

Very often, for reinforcement, polystyrene foam is attached simultaneously with glue and “fungi”, which is the most reliable and correct solution.

After installing the insulation, as a rule, the outside walls are plastered or lined with facing bricks.

Insulation with polystyrene foam using wooden slats

There is another type of installation of polystyrene foam boards - using a frame made of slats or other suitable material.

Slats are mounted to the wall, the thickness of which should not be less than the thickness of the insulation, or even better, it should be larger to create a ventilated space between the polystyrene foam and the cladding. The distance between the slats is chosen so that the polystyrene foam boards are tightly inserted between them without falling out.

This type of installation is acceptable if you do not plaster or line the walls with brick, but cover them with siding, for example. In this case, the slats will also become the basis for attaching facing materials.

How to properly insulate external walls with mineral wool

Another popular insulation for house walls is mineral wool insulation.

Insulating walls with mineral wool differs from insulating walls with polystyrene foam boards, primarily due to the characteristics of the insulation materials themselves.

Mineral wool, unlike expanded polystyrene, is not a sufficiently rigid insulation material, so installation of mineral wool is usually carried out using the frame method. But if the cotton insulation is of sufficient density, then builders also do not hesitate to install it with glue.

A frame is constructed from slats or small bars, and mineral wool is laid or rolled between them.

If the wall is concrete or brick, the bars are attached to the wall using dowel nails. Well, if the wall of the house is wooden, then use self-tapping screws.
Additionally, you can secure the mineral wool with “fungi” so that it does not roll down.

Since cotton insulation absorbs moisture very well, it will be necessary to provide waterproofing on top of the insulation. Without this, mineral wool will absorb moisture from the street and you can forget about the insulation effect.

It is also advisable to build more or less reliable protection against various rodents by installing metal strips along the edges of the wall.

When facing walls from the outside with brick, insulation is placed between the main wall and the facing wall, and these two walls are connected with special bonds that pierce the mineral wool and at the same time hold it inside the wall, preventing it from rolling down in the future.

Insulation of external walls with polyurethane foam (PPU)

This is the most modern type of insulation, but also one of the most expensive. There are many advantages to insulating walls with polyurethane foam:

• after application it expands, filling all depressions, crevices, etc.
• at a certain density, vapor permeability is very low, which eliminates additional vapor barrier
• has good adhesion, i.e. sticks well to the wall
• after hardening it has good mechanical strength
• good heat and sound insulating properties

Of course, every coin has two sides, and here too, there are plenty of disadvantages:

• low-density polyurethane foam has good vapor permeability, which must be taken into account when insulating.
• low fire resistance
• expensive material
• Spraying is recommended to be applied by professionals, which practically eliminates insulation with your own hands
• aging of polyurethane foam over time, with deterioration of thermal insulation properties

It is better to entrust the insulation of the outside walls of a house with polyurethane foam to professional workers using personal protective equipment, since the spraying process releases dangerous toxic substances.

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 the heating season has not yet begun, uncomfortable conditions are 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 with central heating, the situation only gets 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 to try to insulate the walls. How can I do that? 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, the market for thermal insulation materials is extensive, represented by various 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. It has excellent 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 the material is light 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 both interior and exterior work. 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, condensation can accumulate on wooden walls, 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 greatly facilitates 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 is a 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 from 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 of the required thickness of the heat insulator, there are no seams or joints.

Excellent thermal insulation and waterproofing properties, the material is non-flammable and environmentally friendly. But perhaps its main advantage is the low cost of 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 with a 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 a concrete wall from the inside? How to do this correctly? To insulate a wall from the inside, we will consider step-by-step instructions for insulating 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 from finishing material to plaster. Therefore, this procedure should be combined with renovation work in your apartment;
• next must be done. It is best to use special polymers, but you can also use regular 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 straighten out 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? You can insulate a corner apartment in a panel or monolithic house by following these six steps.

Installing insulation on brick walls

How to insulate brick walls inside an apartment with your own hands? Corner walls in a brick house can be insulated using the same method as in a panel house. 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 of the 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 work. If you plan to cover the walls with plasterboard, then no additional work on the insulation is 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 a 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 the electrical network of the apartment. 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 a comfortable life it is necessary to install ventilation.

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