Insulation of walls from the inside in a corner apartment. How and with what to insulate a wall in a corner apartment from the inside? How to insulate panel walls in an apartment

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. At correct design at home (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:

Creation of a layer of heat-insulating material with vapor permeability lower than that of the facade material.
Insulation using materials with minimal water absorption.
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 from moist air from the room and ventilate 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.

Old Soviet panel houses are much inferior in thermal insulation to modern monolithic buildings. New SNIPs dictate that developers maintain the required wall thickness and insulate facades immediately after completion of pouring work and laying out walls. Five- and nine-story panel buildings were designed only for internal heating, without insulating in any way external walls from the cold. Thousands of people live in corner apartments, and the issue of their thermal insulation becomes more pressing every year.

Options for insulating walls of panel houses

Modern technologies present two options for insulating wall surfaces apartment building: inside and outside. Both options will solve the problem of low room temperatures and rapid heat loss. More was installed in panel houses cast iron radiators with excellent heating qualities, but due to the thinness of the walls and their direct contact with frosty air, the efficiency of the radiators is significantly reduced.

Important! The task of thermal insulation is not to heat the room, but to keep it warm and prevent air cooling due to its contact with the cold surface of the walls, especially if the corner apartment is at the end.

Both options are suitable for this, but their implementation is radically different, so it is necessary to determine a simpler and more economical one that you can do yourself.

Which method is preferable?

Let's consider the pros and cons of both methods and choose the most suitable one. Advantages of insulating walls outside panel house:

the work will be carried out on the facade, which means it will not interfere with residents directly living in the apartments;
Along with insulation, external renovation of the facade will simultaneously take place decorative plaster or hanging panels;
the whole house will be insulated, which means that the premises will also be insulated public use will become less cold.

Insulation of external walls of a panel house - disadvantages:

the impossibility of insulating only your own apartment, even if it is corner - at least two walls in each room will be adjacent to the uninsulated neighboring apartments;
high cost of work - insulation and finishing will be carried out by a specially hired team, which requires constant monitoring and payment;
lack of privacy in multi-storey building– the work will take place outside, which means the builders will need scaffolding structures or a hanging cradle, and this entails their constant presence right outside the apartment windows, where they can easily look into;
duration of the process - if the house is large, then the work can take more than one month, and all this time there will be people near the house trucks, lifts, building materials and scaffolding.

Insulation of walls in panel house from the inside - cons:

reducing the living space of rooms - hanging additional structures on the walls will increase the offset of each of them by at least 5 - 8 centimeters;
the inability to live in a room where renovations are underway - residents will have to move to other rooms, because the area being renovated will be occupied by materials;
the likelihood of temporary relocation - the work may involve painting and the use of strong-smelling substances, so it will not be possible to stay in it during insulation.

Advantages of internal insulation:

independent implementation of insulation inside the home - no high-rise work or construction of additional structures will be required, only care, a competent approach and tools will be required;
low cost - compared to external insulation, interior work will cost less if we consider only insulation, because the final decorative finishing the walls can be anything and cost a lot;
short deadlines - if all the material is purchased and there is enough time, then each room inside can be insulated in 2 days and the same amount of time will be needed for finishing, so you won’t have to endure the inconvenience and temporary relocation for long.

Having studied all the nuances, it is clear that the advantages of internal insulation are greater than those of external insulation and they are more significant. Important: timing, cost and the ability to do everything yourself. Therefore, we will consider this option further.

Selection of insulation material

The modern world of building materials provides a wide range of possibilities. Here are the main options for insulating a panel house from the inside:

polystyrene foam (penoplex);
polyurethane foam;
mineral wool.

Any of them will cope with the task, but they differ in the installation method and cost, which may affect the choice of insulation. It all depends on what tools are available and the size of the budget.

Important! The least attractive option is to use polyurethane foam, because it will require deep formwork, which means that such insulation will “eat up” more of the room’s area. Its installation requires a special sprayer, which may not be available.

Mineral wool good option for insulating the walls of an apartment building, it is thin enough, can be easily reshaped and is not expensive. The main disadvantage is its composition, which includes fiberglass. On contact with skin it leaves discomfort and may cause irritation. Clothes with long sleeves and a special face mask can help prevent this.

Penoplex is convenient because it is pre-cut into convenient panels. It is lightweight and can be installed by one person. Each panel fits groove into groove and is assembled like a construction set. It can be selected optimal thickness, saving the trimmed area. The disadvantage over other materials is their higher cost, but this is compensated by the ability to do the finishing without using drywall. In the best way, work will be carried out using foam insulation.

Preparatory work

Regardless of the chosen option, before insulation, you will need to carry out preparatory work. An important note is that insulation is best carried out in a warm and dry time year to avoid sudden temperature changes and condensation. What you need to do:

free up the space of the room, remove unnecessary pieces of furniture and limit the entry of strangers and pets into the living space;
get rid of the current wall decoration - remove old paint or wallpaper from partitions;
remove plaster from the walls - this will require special scrapers;
vacuum or wash the walls - this is required to get rid of dust;
prime and let dry;
level the plane - if necessary, if it is clear that the unevenness is too large;
completely dry the room.

What you will need to work on insulating a room in an apartment building

Insulation work will require proper skill and attention, but it can be done easily if you strictly follow the technology and have it on hand necessary tool. Here is a list of what you may need:

construction stapler;
polyurethane foam;
sealant gun;
screwdriver;
hammer drill or powerful drill;
construction knife;
ladder or trestles;
hammer;
metal screws;
metal corners;
liquid level;
thread;
serpyanka;
spatula;
liquid nails for exterior use;
plastic mushrooms for attaching foam;
vapor barrier film.

The specified list may be wider depending on the installation method, but you can easily get by with what is listed. Having everything you need, you can get to work. Remember that it is better to ventilate the room well, and carry out noisy work only at the permitted time of day in order to avoid conflicts with neighbors.

DIY installation

By performing steps step by step, you can achieve an ideal result. Let's start:

Glue (liquid nails) is generously applied to the surface of the wall and penoplex panels, and then pressed tightly against each other. We carry out such actions with each panel, placing the next one exactly in the groove with the previous end side. This applies to both the side sections and those on top. Penoplex is easily cut with a knife, so where a whole panel does not fit, it is carefully cut and inserted into the space. It is important to cut exactly to size in order to leave a minimum of gaps and lay them exactly at the end.
You can also fasten the panels using wall anchors and plastic mushrooms; for this, holes are made in the walls and fasteners are driven into them directly through the attached polystyrene foam. This method is very noisy, so we recommend the first option.
All joints between panels, walls, floors and ceilings are coated with sealant. This is necessary to ensure maximum thermal insulation.
The tighter the foam is pressed against the wall surface, the better its insulating properties, so don’t skimp on glue or anchors.
This installation option involves final finishing using plaster. After the sealant has dried, the entire surface of the wall is covered with putty and leveled. If you want to further strengthen the layer, you can smear a special mesh (serpyanka) into the plaster.
After final leveling, the putty must be allowed to dry and then primed, thereby preparing its surface for painting or wallpapering.

Important! If you plan to hang cabinets on the wall, then you need to choose a slightly different installation option. Before the first point in the previous instructions, you need to mount a suspended structure made of metal profiles on the walls, and lay foam plastic between the guides according to the instructions. The following list should be considered a continuation of the previous one, after the fourth point:

A vapor barrier film must be stretched over the penoplex and guides to isolate the formation of moisture inside the wall. Its installation is carried out using plastic mushrooms through foam.
We attach the drywall to the vertical and horizontal guides using self-tapping screws.
Next, as in the previous instructions, the surface is puttyed, leveled and primed.

Installation is not at all difficult. The main thing is to stick to technology, then the work will go quickly and efficiently. After finishing, you will immediately feel that the apartment has become much warmer and drier, even if it is an end apartment. That's because isolation helped get rid of contact warm air with the surface of cold walls. Therefore, if heating occurs not with radiators, but with heated floors, they can be turned on less often, thereby saving on utility costs.

September 3, 2016
Specialization: facade finishing, interior decoration, construction of cottages, garages. Experience of an amateur gardener and gardener. We also have experience in repairing cars and motorcycles. Hobbies: playing the guitar and many other things that I don’t have time for :)

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 begs the question: why do it at all? internal insulation, if he 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 the degree of thermal conductivity varies slightly between them. 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 abandon polystyrene foam, but mineral wool is a good solution - 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:

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.

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 the 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 on 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:

attach wooden slats about two centimeters thick to the walls. 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 be pre-treated protective composition so that they do not rot in a humid environment;
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;
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 consists of vertical posts, which are arranged in increments equal to the width of the heat insulation 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:

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;
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;
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;
Next, the racks are inserted into the guides and fixed with brackets, as shown in the diagram above.

For cutting 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 mineral wool stripes 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 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:

work must begin by cutting drywall into sheets 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;
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;

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;
then a special self-adhesive mesh is glued to the seams between the sheets;

then the heads of the screws and the joints between the sheets are covered with gypsum putty;
After this, the entire surface of the walls is puttied. On our portal you can find detailed information on how to properly perform puttying;
then the surface is polished with a special grater, onto which a mesh is put:
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.

September 3, 2016

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 subject to the greatest influence 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 quality material, you can insulate the 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 special effort, because 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 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, 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

It's relative 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 quick installation material in brick construction., 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 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 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 polyethylene 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 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 uneven surface 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 heat 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 works. 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 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. At the very severe frost 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 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.

Houses built over the last 2-3 decades retain heat much better than buildings from the times of the Soviet Union. This is especially noticeable in the cold season - “Khrushchev” buildings built from panels or bricks freeze an order of magnitude faster, so they require more insulation materials and heating. Since millions of people live in such houses, the issue of wall insulation is especially relevant for them.

To normalize the microclimate of the room, residents can use one or two methods of thermal insulation:

external;
internal.

The implementation of the first method is often complicated by two factors:

location of the apartment on the upper floors;
living space layout in which most walls border on walls neighboring premises(it happens that only a balcony can be sheathed from the outside).

The second method is not without a number of disadvantages:

inevitable reduction in the usable area of the room;
For good insulation the walls will have to be thoroughly prepared from the inside, destroying the usual way of life;
temporary relocation of residents is required, especially if work is carried out with materials containing harmful impurities;
insulation from the inside reduces the service life of the panel structure, since in winter the wall falls into the zone of negative temperatures.

However, internal wall insulation is preferable to external thermal insulation because it saves money - residents will not have to spend money on high-rise work. They will also spend less on insulation.

Materials for insulating the walls of a panel house

The operation of the apartment is accompanied by a periodic increase and decrease in indoor air temperature.

Consequently, the material must not only be an excellent heat insulator, but also have acceptable moisture-resistant properties.

This requirement is fully met by the two most popular insulation materials, which we will consider. Recently, liquid insulation materials have also been gaining popularity, but these are already topics of our other articles.

Insulation supplied in the form of foam that hardens after application. It has a low thermal conductivity coefficient, so it holds heated air well in the house. For uniform application and crystallization, formwork must be used. Its role can be played by bars with a cross section of 25×25 mm or slightly larger, placed vertically and horizontally along the wall. The resulting cells (sections) will be evenly filled with polyurethane foam.

Thermal insulation of the walls of a panel house using polyurethane foam has several more features:

after the polyurethane foam has hardened, an additional layer of waterproofing must be laid (to reduce the amount of condensate formed);
impossibility finishing and cladding (you will have to build a second plasterboard wall on top of the polyurethane foam, on which you can apply wallpaper, plaster, etc.);
if the previously listed conditions are met, a minimum of condensation will occur, after which it will be discharged to the junction of the wall with the insulation.

The cost of thermal insulation of the walls of a panel house outside or inside using polyurethane foam is high - it will be required special equipment, as well as skilled workers. Therefore, consumers prefer the second good material.

Extruded polystyrene foam (foam)

The biggest difficulties when working with the material arise at the installation stage. Polystyrene foam is supplied in even slabs 100×50 cm or more, so when covering uneven walls its distortion is inevitable. Therefore, it is necessary to carefully prepare the initial surface, otherwise air gaps will appear where condensation will penetrate.

Plates are attached to the wall special glue, applied evenly to the entire sheet, and the joints are coated with sealant. The use of anchor connections is excluded - leaky transitions may occur throughout the entire foam layer. It is better to use a T-shaped profile fixed to the floor and ceiling.

Technology of work execution

When insulating, you should adhere to the stages of work described below.

Choice of insulation method (outside/inside; the second is easier to implement).
Calculation of insulated area, purchase of material; transition to the preparatory stage.
Drying the surface (using heat guns, heaters). The walls are insulated strictly according to warm time of the year!
Old coatings (wallpaper, paint, decor) are removed, the plaster is removed down to the concrete base.
The surface is cleaned of dirt and dust (use a broom or vacuum cleaner).
Processing interior walls antiseptic.
Priming the original surface (it is better to use a deep penetration primer and apply it in several layers).
Allow the walls to dry thoroughly.
Leveling using special mixtures (those used in finishing bathrooms are acceptable). When drying the plaster, do not use heaters - this way it will acquire normal strength.
Installation of foam plastic. Unlike polyurethane foam, it does not require formwork - the slabs are attached with glue directly to the dry surface. When using polyurethane foam, the insulation is applied a little later after the wooden frame is made.
After the glue has completely dried, the joints of the plates are sealed with sealant.
A second wall with final finishing is applied on top of the resulting structure.

If all steps are completed correctly, an increase in temperature inside the panel house is guaranteed. If the work does not bring results, you will also have to insulate the floor of the apartment.

Spectrum good insulation materials are quite large, but few of them are suitable for panel buildings. Due to the impossibility of thermally insulating the apartment from the outside, residents have to carry out internal work, which is not very complicated, effective and does not require special skills or knowledge. Even residents of hopelessly freezing panel buildings can achieve an increase in room comfort if they use the insulation recommended above.