The corner of the wall in the apartment gets wet. Why do the corners in the house become damp? Application of non-standard architectural and design techniques

Apartment owners quite often encounter such a problem as a wet wall in the apartment. Trouble often arises in winter period when the temperature difference between outside and inside the room is very large and condensation begins to settle on the walls of the building. The question automatically arises, what to do if the wall in the apartment is wet and how to get rid of this problem. If you neglect to correct the situation and leave everything as is, then it is quite possible that black mold will subsequently form on the walls, which is extremely dangerous to human health and provokes diseases respiratory tract and causes serious complications.

In this article, readers will be able to find out why there are wet walls in the apartment and if the wall in the apartment becomes damp, what to do and what actions to take first.

Reasons why apartment walls become damp

Before you begin to solve the problem, you should answer the question why the walls in the apartment get wet and at what stage the damage is. If the degree of moisture in the wall is very high, then you will need to make a radical decision and, without delay, correct the situation as quickly as possible.

The first sign that indicates that the walls in the apartment are getting wet is that its surface becomes damp, the wallpaper begins to peel off and the plaster crumbles, and at the final stage the wall is covered with a layer of black mold. If such a phenomenon occurs, then it is extremely important to first determine why the walls in the apartment are damp. In the future, this will allow you to choose correct method remedy the situation, including the necessary equipment and materials that will be used. The main reasons why the walls in an apartment become very wet are the following:

Insufficient wall insulation or low waterproofing often leads to the walls of the apartment getting wet. As a rule, this is observed in old houses and in apartments located on the highest or lowest floors. It should be noted that wet walls in the apartment are top floor or at first appear in the autumn-spring period, and not in winter, as in other cases.
In the room or at the location of the home there is high humidity. If we are talking about a brick building, then a large amount of moisture rises from the basement, resulting in a wet and unsightly wall in the apartment.
Insufficient ventilation can also be the reason why the walls in the apartment become damp. For the same reason, indoor windows fog up.
Quite often the wall gets damp in corner apartment What to do in such a situation worries many owners. This is due precisely to the inconvenient location of the living space and the fact that the walls of such a dwelling are exposed to negative factors much more than in other apartments.
The premises have recently been renovated. This reason, which explains why the walls in the apartment become damp, is the only one in which such a consequence is considered natural. As a rule, during repairs a large number of materials are used that contain water and after the necessary work is completed, moisture remains in the walls, especially if the room is poorly ventilated. In such a situation, you shouldn’t worry and worry about what to do when the walls in your apartment get wet, but it’s better to wait a little time and the moisture will dry out on its own.

What to do if the wall in your apartment gets wet?

Having figured out why the wall in the apartment gets wet, we found out that there can be several reasons for the occurrence and development of such a situation. Accordingly, to answer the question of what to do if the wall in the apartment is damp, it is possible only if the cause of the problem is precisely determined.

For example, if a wall in a renovated apartment becomes damp, no special manipulations will be required. It is enough to ventilate the apartment well and keep the windows open for a while. If repair work is carried out in winter, it is worth providing heat in the apartment so that the moisture remaining after the repair evaporates. If the heating is good, then batteries are sufficient for this purpose, but if they cannot cope, then you will need to turn on the heater.

If there are problems with ventilation, if the wall in the apartment is damp, only an experienced craftsman will tell you what to do, although initial stage can be dealt with difficult situation on one's own. It is enough to remove objects that interfere with quality air ventilation. For example, if moisture accumulates on small area behind the curtains, then it is quite possible to raise or remove the curtain altogether, and move the furniture away. In this case, if the wall in the apartment gets wet, such actions can quickly deal with the problem. In general, the problem of what to do when the walls in an apartment become damp in the absence of good ventilation can be solved comprehensively. You will need to check everything ventilation holes, which are located inside the apartment and ventilate the room more often. Additionally, it is worth installing a hood in the kitchen to remove excess moisture.

As we have already noted, the reason why a wall in an apartment gets wet may be the lack of high-quality waterproofing. This problem It’s already more serious and it’s not easy to cope with it. There can only be one solution here - to sufficiently insulate the wall surface. As a rule, if the walls of an apartment become wet, it means the seams are outside the buildings fell into disrepair. What to do when the walls in your apartment get wet? in this case, only a specialist can advise. This will require serious intervention, since ordinary ventilation cannot solve the problem.

What to do if wet walls appear in your apartment in winter? This question concerns many home owners who are faced with such a problem. Moreover, if you take independent actions in this case, you can only worsen the situation. Many people do not have the opportunity to perform additional insulation with outside buildings and, by laying insulation from the inside, only worsen the situation by shifting the dew point. As a result, a wet wall in an apartment will become even wetter in winter, and later moisture will begin to accumulate under the insulation into a puddle. It is extremely important to understand here that even if the owner of the apartment is an experienced climber and builder, you should not carry out insulation work yourself, but it is best to trust experienced craftsmen and who will do all the work to the highest possible quality.

For a more complete idea of what to do when a wall in an apartment gets wet, it is worth deciding what tools and materials are needed to carry out such work, as well as what technologies are most suitable for solving the current problem.

Tools required for work

If the walls in your apartment are damp, what should you do? We try to figure it out in this article. Several options for correcting the situation have already been proposed, however, the most correct thing would be to contact specialists who can certainly fix the problem. If, however, it is possible to produce renovation work to eliminate the reason why there are wet walls in the apartment, it is worth preparing in advance necessary tools. The list of mandatory items includes the following names:

roulette;
level;
hammer;
hacksaw;
stapler and staples;
construction thread or twine;
trowel;
spatulas.

At this point, the list is not complete. It is likely that other devices and tools will be required to carry out special work. Here, each performer determines the tools independently, taking into account the specifics of solving the problem. In addition to the tools, you need to take care of the purchase special materials, which are presented on the construction market. Next, we will consider some of the nuances of insulation and waterproofing.

How is thermal insulation carried out in rooms where the wall is damp?

To answer the question of what to do when the walls in the apartment get wet, we can suggest strengthening the existing thermal insulation. This will eliminate the penetration of moisture and cold from the outside and will give the greatest effect. It is important that insulation is carried out both outside and inside.

Unfortunately, do it yourself similar works almost impossible. Such option will do for free-standing buildings, first floors, as well as buildings where there is no need to climb to a significant height to complete the finishing.

It is extremely important to choose the right thermal insulation materials, which are presented on the construction market in large quantities. To carry out the work, it is best to choose trusted manufacturers who pay attention to high quality characteristics materials. It is important to remember here that even if wet walls appear in the apartment on the top floor, then it is worth insulating the area from the outside, and not from the inside.

If we are talking about apartment building, then it is almost impossible to insulate the walls in this case, so you will have to limit yourself to the interior decoration of the walls, which correct execution work will give a guaranteed high-quality result. In this case, it is worth paying attention to two important parameters:

when a wall in an apartment gets wet, you must first determine the water absorption coefficient of the material used. The speed and degree of moisture removal from the apartment depends on this indicator. The lower the indicator, the better the water-repellent properties of the material. This will make it possible to eliminate such problems as a wet wall in an apartment in winter;
To determine what to do when the walls of the apartment get wet, it is worth insulating the walls, but at the same time taking into account the thickness of the layer purchased for finishing the material. Here it is important to make such a density that there will be a sufficient thermal conductivity coefficient. If the coefficient is small, then the layer will need to be made thin.

Only by taking into account all these points can you achieve a significant reduction in humidity in the apartment and return the wall to its original appearance. To answer the question why there are wet walls in the apartment and what to do if the wall in the apartment gets wet, just study theoretical aspects this issue and contact a specialist for practical advice.

How to insulate the foundation if the wall in the apartment is damp?

What to do if the walls in the apartment are wet in winter and the apartment is located on the first floor of the house? In fact, the problem here can be solved quite easily. You only need to insulate the foundation. This action is especially relevant for those who are interested in giving their home increased sound insulation. This will not only solve the problem of a wet wall indoors in the apartment in winter, but will also get rid of noise and unpleasant sounds.

Here it is worth giving preference to materials that have a high noise absorption coefficient, since this will save time on repairs and installation of sound insulation. The flammability class of materials is extremely important to eliminate the possibility of sudden fire. The best option may become a G1 class material, since thermal insulation, even during combustion, does not provoke the appearance of a source open flame. It is worth highlighting several of the most common insulation and at the same time soundproofing materials. The list of the most famous includes the following:

mineral wool is a very common material that has low cost and excellent specifications. When the walls in an apartment get wet, an experienced craftsman can advise what to do and most likely, he will say that, despite good performance indicators, mineral wool for insulation is not the best a good choice. The thing is that the material exhibits high coefficient water absorption;
polystyrene foam is great choice, if you don’t know what to do if a wall in your apartment gets wet. The material will suit for internal and exterior finishing, while it practically does not absorb moisture. The disadvantage is the low steam transmission ability. This does not allow air to circulate freely. In addition, when ignited, the foam begins to release toxins;
“warm” plaster, which is used to insulate walls from the inside and outside. The use of such material is especially relevant if wet walls appear in the apartment on the top floor. This is due to the fact that the material is not traditional insulation and does not absorb moisture. In addition, this plaster has excellent sound insulation properties. The disadvantage is that the coating is too heavy. The material is not suitable for private houses, as it requires a reinforced foundation;
cork insulation is used when interior decoration. If you have no idea what to do when the wall in your apartment gets wet, then you should pay attention to this material, which has low thermal conductivity, but is also lightweight. The disadvantage of the coating is considered to be increased flammability.

Surface insulation scheme if the wall in the apartment gets wet

Many apartment owners are interested in the question of where to go if there is a wet wall in the apartment and what to do in such cases. In fact, there can be only one solution - to visit construction company, which provides similar services. This will immediately provide several advantages. On the one hand, you will decide what to do when the wall in the apartment gets wet, and on the other hand, you will receive high-quality work that will not require rework in the future. Another important point is that the master has an idea of what to do if there is a wet wall in the apartment, which means he will do everything necessary work strictly according to technology. For example, we can give the following algorithm for finishing a section of a wall.

The work site is prepared, namely, it is cleared of dust and debris, after which leveling plaster and primer are applied to it. The base for further work is ready and now you will need to glue the foam onto it, and then secure it with special dowels.
Each sheet needs to be processed adhesive composition, and then press it onto the prepared surface and press well. It is best to place the sheets in a checkerboard pattern, thereby increasing the strength of the structure.
Fastening with dowels is carried out around the perimeter, and holes will have to be drilled in the material.
After gluing and fixing the sheets, the finished finish is covered with reinforcing mesh and general design plastered. The walls are decorated with paint, and a layer of decorative plaster is applied to it.

Most simple option wall insulation, which determines what to do when the wall in the apartment becomes damp is to insulate the surface from the outside using special “warm” plaster. The material is applied to plaster mesh and then decorated.

Insulation of walls from the inside if the wall in the apartment is damp

This option remains the only one when the homeowner does not know what to do when the wall in the corner apartment becomes very damp and where to turn if there is a wet wall in the apartment. In fact, if it is not possible to insulate the structure from the outside, then it is important to consider the procedure for insulating the walls from the inside. Experts recommend using any of the above materials in this case, however, you should choose insulation taking into account custom sizes walls, as well as from the financial capabilities of the owners of the premises. From this point of view, it is still not worth using polystyrene foam, since it can easily ignite and thereby threaten the lives of residents.

The entire insulation process takes place in several stages. Each stage is extremely important for the overall result, since it allows the finishing to be completed with the highest possible quality and with the expectation of long-term use in the future. The algorithm of actions in this case is as follows:

The walls should be pre-prepared by cleaning them from dirt and old wallpaper.
Impregnate the surface with a primer.
Assemble the frame from metal profile or wooden blocks. The fastening pitch should be 40–60 cm.
The insulation is placed in cells; if necessary, the sheets can be cut.
Subsequently, the covering is covered with plasterboard and finished with plaster.

Conclusion

If you have no idea what to come up with when the wall in your apartment gets wet, then we recommend that you contact experienced craftsmen who will as soon as possible will do everything Finishing work and will save you from this problem.

So, in order, the information is confirmed by test reports from leading manufacturers of polystyrene concrete, I drew a conclusion for myself and wrote it at the end of the commentary. MOISTURE RESISTANCE and HYGROSCOPICITY This is the most important property any building material, especially in areas with high humidity. The higher the moisture resistance of the material, the more durable, stable and warmer it is. Polystyrene concrete absorbs no more than 6% moisture from the atmosphere; it can be exposed to open air almost unlimited time. STRENGTH Due to the super-strong cement-polystyrene matrix, polystyrene concrete has unique strength characteristics. This material is so durable that a fall from a five-story building will not cause significant damage to the block. FIRE RESISTANCE Polystyrene concrete does not burn; it is able to withstand enormous temperatures caused by fire, due to its unique thermal conductivity coefficient, and does not allow heat to penetrate deep into the wall. Flammability class NG. Fire resistance class EI180. DURABILITY The service life of a house made of polystyrene concrete is at least 100 years. Over the years, the strength of polystyrene concrete only increases. FROST RESISTANCE Tests for frost resistance and the amplitude of temperature fluctuations from + 75°C to - 30°C were carried out on 150 freeze-thaw cycles without loss of integrity and heat-insulating ability. THERMAL INSULATION It has long been recognized that polystyrene (foam) is the best thermal insulator in the world; it is warmer even than wood! A house made of polystyrene concrete does not require insulation: it is cool in summer and warm in winter. SOUND INSULATION Polystyrene concrete provides the best indicator for noise absorption, 18-20 cm dampens sound from 70 decibels. Consequently, a house made of polystyrene concrete has special comfort: noise from the street and inside from neighboring rooms and bathrooms is not disturbing. ECONOMICAL Cost square meter finished wall cheaper than other materials. Due to high level heat preservation, walls made of polystyrene concrete can be built 25% thinner than those made of alternative materials (aerated concrete and foam concrete) and 4 times thinner than those made of brick. Saving on wall thickness leads to overall savings on the construction of the box (foundation, roof and walls) of up to 50%. At the same time, the quality of the house will be even higher, and the house itself will be warmer. EARTHQUAKE RESISTANCE Seismic resistance 9-12 points. Polystyrene concrete has not only compressive strength, but also the most high strength for tension and bending. Therefore, polystyrene concrete is considered the most reliable and earthquake-resistant material. LIGHTWEIGHT A large-sized block of 200x300x600 mm does not exceed a weight of 17 kg, which facilitates the work of a mason and reduces the time for laying walls: it replaces 20 bricks in volume, and is almost three times lighter in weight. ANTISEPTICITY The additive used in the production of polystyrene concrete does not allow insects and rodents to enter the walls, and prevents the formation of mold and mildew, which have negative impact to your health. VAPTOR PERMEABILITY Walls made of polystyrene concrete “breathe” similarly to walls made of wood, and there is no danger for them from condensation and waterlogging. This ensures a comfortable environment in houses made of polystyrene concrete. PLASTICITY Plasticity is the only material from cellular concrete, allowing the production of window and door lintels, its bending strength is 50-60% of the compressive strength, for concrete this parameter is 9-11%. CRACK RESISTANCE Polystyrene concrete, due to its elasticity, is incredibly resistant to cracks. And this guarantees a long period of preservation of the interior decoration and durability of the entire house. TECHNOLOGY High speed of construction wall structures due to the lightness and convenient geometry of the blocks. Easy to saw and groove, the ability to give building material any geometric shape. ENVIRONMENTAL FRIENDLY The International Building Code (IRC) classifies polystyrene as one of the most energy efficient and environmentally friendly insulation materials. Thus, polystyrene concrete has a lot of undeniable advantages over materials such as expanded clay concrete, autoclaved and non-autoclaved aerated concrete, foam concrete, wood concrete, etc. The disadvantages of polystyrene concrete appear only when wrong choice its brand and violation of masonry technology and preparation for interior decoration. We can say with absolute certainty that there is not a single significant advantage for materials such as aerated concrete and foam concrete over polystyrene concrete. At the same time, polystyrene concrete significantly surpasses them in key characteristics.

Freezing of the corners of a house is a nuisance that residents of either a panel Khrushchev or brick new building may encounter, or country house, be it even wooden or stone. Fortunately, this serious problem you can decide on your own on our own. Let's talk about how to properly get rid of freezing in the corners of your house.

Why do corners freeze?

Because of cold bridges, corners are the most vulnerable part of almost any home. These areas building structure have increased thermal conductivity. Any vertical or horizontal angle is a geometric bridge of cold. If there is a construction defect - poorly sealed seams, through voids in concrete, insufficient mortar layer between bricks, lack of necessary insulation, - problems cannot be avoided. Where there are cold bridges, the wall surface temperature in winter can drop below the dew point (to approximately 9 ° C and 50% humidity) while maintaining room temperature indoors. It is in such places that due to temperature differences, condensation forms, which leads to the formation of mold, and when frozen it turns into ice crystals.

The most logical solution in this case seems to be laying insulation from the inside along the walls. But any such material is essentially a heat insulator, which equally insulates the wall from heat and cold. The use of insulation may even worsen the situation, as it will shift the dew point (the place where the cold and warm air) on the inner surface of the wall. As a result, cold air from the street will freeze the wall right through, since the heat from the apartment will not be able to penetrate the insulating layer. Wetting and freezing will continue, the insulation will become unusable and will no longer perform its functions. In addition, ice crystals will continue to destroy wall material, contributing to a further increase in cold bridges.

When purchasing a country house or an expensive apartment, you can use the services of companies offering thermal imaging. Specialists will help you detect all heat leaks and conclude whether it is possible to correct the builders’ mistakes. This can save owners from many troubles associated with the operation of the house and will save significant money.

Getting rid of freezing corners

The ideal way to solve the problem is to insulate the entire facade from the outside and reliably seal the seams. Own Vacation home it is quite possible to repair, but in apartment building will have to ask for help management company. But don't despair. And in a separate apartment you can get a good result.

First of all, you need to remove the wallpaper. If there are no visible cracks, then the walls are tapped with a hammer - where there are voids, the sound will be dull. Next, remove the plaster over the detected cavities and thoroughly dry the corner. If there is mold, be sure to treat it with special antifungal agents. Sometimes the mold damage is so extensive that the use of acid or fire is necessary. blowtorch or surface milling. All the cracks and voids are filled polyurethane foam or liquid foam. This will prevent moisture from entering the room even if there are cracks in the external wall. Finally, the remaining foam is cleaned off and the corner is plastered. It is best to carry out work in the warm season in order to completely get rid of dampness and mold indoors.

If very large voids are found, do not fill them mineral wool or tow, as these materials contribute to the accumulation of moisture. It's better to use the same one. It is resistant to moisture, not susceptible to rotting and mold, has high adhesive properties, and does not lose quality when frozen.

Insulation of the entire façade from the outside

Today, manufacturers offer a variety of materials that greatly facilitate the repair process and bring it to high quality. new level. For example, special heat-insulating (“warm”) - light mixtures in which microscopic polystyrene foam granules or lightweight natural fillers are used instead of sand. This plaster is several times lighter than regular plaster, it applies and sets well. Due to the presence of air pores, warm mixtures have high vapor permeability, regulate condensation and provide a healthy indoor microclimate. Layer warm plaster 50 mm in thermal insulation effect is equivalent to laying one and a half to two bricks or a two-centimeter layer of polystyrene foam.

Not so long ago, new materials appeared on the market, produced by different manufacturers under different trademarks, but united under the common name “liquid thermal insulation”. It is indispensable for problem areas such as freezing corners. The insulating suspension, reminiscent of paint, consists of hollow microspheres (ceramic, glass, silicone or polyurethane) that effectively reflect thermal radiation. Microspheres are suspended in a binding composition of synthetic rubber or acrylic polymers, antifungal and anti-corrosion additives and coloring pigments. This composition gives liquid thermal insulation properties of waterproofness, flexibility, lightness and strength. The thermal conductivity of liquid heat insulators is significantly lower than that of conventional insulation. Several layers of such paint can replace 5 - 10 cm of polyurethane foam or mineral wool.

True, all this is only from the words of manufacturers and sellers; many practical tests have proven the ineffectiveness of such paint as insulation. Its main task is to reduce heat loss on main pipes hot water and boilers.

Application of liquid insulation

The problem of corner freezing can be prevented even at the stage of building a house or renovating a new building. In accordance with the laws of physics, the temperature of the inner surface of the corner is always lower than the temperature of the walls that form this corner. Experienced designers say that ideally the corners of walls, both external and internal, should be rounded or beveled. Rounding or chamfering only internal corner(wall material or heat-insulating plaster) can reduce the temperature difference between the walls and the corner by 25-30%. The same role is played by pilasters on the outer corners of the building. This is not only a well-known architectural technique, but also a method of additional insulation.

You can use interesting design solutions. For example, mount in the corner of the ceiling plasterboard box illuminated by conventional incandescent lamps. Working lamps will heat the air inside the structure, thereby moving the dew point inside the wall.