Floor restoration. Self-leveling floors repair

Defects in polymer flooring occur due to long-term operation, poor quality of the base, violation of the installation technology, as well as due to emergency impacts. Repair of the self-leveling floor is carried out after establishing the nature of the damage and finding out the causes of their occurrence.

Consider the types of plastic deformations of epoxy and polyurethane coatings, grouping them by nature and localization

Destruction of the polymer layer

In practice, they usually face 6 types of problems localized in the polymer itself:

Substrate Issues

Poor quality concrete screed , violation of the technology of installation of self-leveling polymeric floors, as well as unforeseen exposure to moisture, lead to the following consequences:

Results of emergency actions

Drops of heavy, pointed metal objects can cause chips and gouges in the floor, breaking the integrity of the concrete base. Pouring aggressive chemicals onto polymers with insufficient chemical resistance leads to the destruction of the coating to the full depth, to the concrete screed.

Defect Analysis

In cases where the nature of the damage does not indicate a low quality of the substrate, it is sufficient to determine the boundaries of the proposed repair using trial removal of the coating. In several places, it is necessary to measure the moisture content of the concrete screed to determine the full terms of reference for the upcoming work.

When analyzing the reasons for the peeling of the polymer layer, one should use not only a moisture meter, but also a hardness meter, as well as a building thermal imager. Only this device guarantees the detection of hidden sources of moisture in concrete.

Polymer coating repair technology

Depending on the type of defects, the repair of self-leveling floors includes surface treatment of the polymer layer, its removal, or dismantling along with a part of the concrete screed.

Cosmetic restoration

You can remove scratches visible to the eye and restore the original gloss of the epoxy coating by polishing. The operation is carried out by a rotary polishing machine with felt wheels, on which a special emulsion is applied.

Restoration of polyurethane floors is carried out by applying a protective varnish.

Any surface treatment is preceded by thorough cleaning, dedusting and degreasing.

Repair with removal of the polymer layer

In some cases, it is sufficient to remove only the upper layer of the polymer by grinding with diamond wheels. This is done when a coating with sagging, bubbles, surface discoloration is to be renovated. A new finish layer is poured onto the sanded surface. If the area of defects to be corrected is small, it is possible to do without an industrial rotary installation. For local grinding, a conventional hand-held angle grinder is used.

Repair of cracks and delaminations involves the complete removal of the polymer coating. In the case when the quality of the concrete substrate is not satisfactory, but they are going to remove the old fill over the entire area of \u200b\u200bthe room, the sequence of actions looks like this:

Where the coating has poor adhesion, scraper-type punch nozzles are used for removal.
In areas with preserved adhesion, chisel-type nozzles and grinders are used.
The exposed surface of the concrete screed is sanded.
A sequence of actions is performed that corresponds to the polymer floor installation technology: dedusting, degreasing, priming, applying the first layer, etc.

If the coating is removed in a limited area, then the perimeter of the repair work is first determined (it is made in the form of a rectangle). The pavement is then cut through to the concrete along this perimeter. Further work is carried out, as with the complete removal of the floor. The only difference is that the joints with the old coating are sanded and treated with special mastic.

What are the selection criteria: completely remove the coating or carry out local repairs?

If decorative properties are important (for example, in offices and shopping centers), then local repairs are appropriate even if the general condition of the surface is satisfactory. The decision to completely replace the polymer floor (regardless of the type of object) is made, as a rule, if more than 30% of the area of the self-leveling coating is damaged.

When replacing the coating locally, materials of the same type that have already been applied should be used. An exception is cosmetic repairs using methyl methacrylate mixtures. They work well in contact with other materials. The advantages of methyl methacrylates are the speed of work, the disadvantages are the low abrasive resistance.

Repairs affecting the concrete base

If the peeling of the polymer layers occurs due to the poor quality of the concrete substrate and the poor condition of the waterproofing, then it is impossible to do without altering the screed.

If, with a satisfactory quality of concrete, cracks in the screed are detected, the substrate should be restored. The traditional restoration technology consists in jointing cracks to the required depth, followed by dust removal, priming and filling with a polymeric repair compound.

Recently, an alternative technology called injection has begun to develop. First, the polymer layer is removed to completely expose the crack. Then, at an angle of 45 °, holes are drilled in the concrete towards the crack along its entire length with a step of 30-40 cm. Special fittings - packers are hermetically inserted into the holes. An injection pump is connected to the packers and a waterproofing compound is injected until it exits the fracture.

All repair actions after crack filling are similar to those described in the previous subsection.

Summary

Do not delay with the start of the repair. The price of delay is that instead of a cosmetic or local renovation, you will have to completely change the polymer coating.

Defects such as delamination or cracks tend to rapidly increase in size. But one should especially hurry in case of emergency chemical destruction of polymers. So that the reaction does not continue in the thickness of the material, it is necessary to limit the affected area and completely remove the polymer layer from it.

In what cases does it make sense to save on calling specialists and do-it-yourself repairs? The decision to renovate on your own is economically justified when the proposed work is limited in area and does not require the rental of expensive equipment. For example, having carefully studied the technology of working with repair compounds and armed with a cutter, puncher, scrapers and an ordinary spatula, it is possible to replace the coating in small areas. But this only makes sense if the necessary materials are commercially available in exactly the quantities you need.

A self-leveling floor is a coating that can be made both in an apartment and at an industrial enterprise, in a store and on the street.

An increase in the number of mounted self-leveling floors undoubtedly leads to an increase in the number of defects. To understand what can break in it, and how to repair the self-leveling floor, you need to know how it should be properly poured and operated.

Surface preparation

The first step is surface preparation. The self-leveling floor is a reinforcing and decorative layer, which is poured with a thickness of three to five millimeters.

Therefore, before pouring, the base must be leveled, all small stones must be removed, and the surface must be dedusted. Choose the type of primer mixture,.

If this stage is carried out poorly, for example, if dust is left, then the adhesion of the self-leveling layer will be significantly reduced.

As a result, in poorly processed places, the layer will move away from the base, at first there will be a dull sound, and then the floor will crack. To fix the problems, you will need to carry out a partial (or complete) dismantling of the destroyed areas and re-fill.

If the foundation itself was not strong enough, and began to crumble into sand, then the self-leveling floor will begin to crack. In this case, the repair of the self-leveling floor in the apartment also begins with partial dismantling. But, when in the process you encounter a crumbling base, you will have to dismantle not only the top coating, but also the concrete screed itself. And redo the repair.

Another unpleasant moment can arise if you do it properly. The polymer floor is waterproof, and all the moisture from the screed will accumulate under the self-leveling floor, and eventually it will swell. It is possible to eliminate such a defect locally, but at the same time there will be a chance of a new swelling in another place.

Compounds for self-leveling floors in our time are very widely used for fine leveling of the base for decorative flooring. They appealed to both professional builders and amateurs who want to do everything in their house on their own. Such popularity is explained by the fact that it is convenient to work with these building mixtures, they are well distributed over the surface and quickly harden, making it possible to quickly move on to subsequent stages of finishing.

But if during the preparation of the base, as well as during the preparation, pouring and distribution of the composition over the surface, the technology for performing work is violated, after the floor hardens or already during its operation, various kinds of defects, including cracks, may appear. This, in the absence of work experience, unfortunately, happens quite often. And therefore the topic - "self-leveling floor repair of cracks" is very relevant.

This publication will consider several issues that may arise in such situations, including the possibility of getting rid of the problems that have arisen.

Causes of cracks

There can be many reasons for the occurrence of cracks on the self-leveling layer of the floor, and they are most often associated with a violation of manufacturing and installation technology. This may be an improperly prepared surface, an expired or cheap low-quality dry mix, high humidity, low or too high air temperature in the room, and more.

Cracks, blisters, delaminations - consequences of either the use of a low-quality mixture, or a violation of the work technology

Repairing defects and even more so reworking the entire floor is not an easy task. That is, it is better not to allow the appearance of flaws in principle. Therefore, it makes sense once again to dwell in more detail on the main points that determine the quality of the bulk coating.

Optimal temperature- this is one of the main conditions for obtaining high-quality coverage. Therefore, the manufacturer of the mixtures gives certain recommendations on the use of the material, which must be placed on the packaging. As a rule, the temperature range for operation varies between +5 and 30 degrees. But this is the limit, and it is best to pour at temperatures from 15 to 25 degrees.

This is due to the fact that at too low temperatures, the adhesive ability of the solution and the base material decreases, especially if their temperature is seriously different. Because of this, the bulk layer may begin to peel off from the concrete screed and crack.

If the solution is poured at elevated air temperatures, uneven setting and drying of the solution may occur, which will also lead to cracking of the coating.

Base humidity level can also cause defects on the flooded floor. Therefore, before starting work, it is necessary to check this parameter as well - it should be no more than 4%.

If the floors were recently leveled with a rough screed, then at least three or even four weeks should pass from the day it was laid, depending on the layer thickness and temperature. Only after this period, the concrete will gain enough strength, and excess moisture will leave it.

If you pour a self-leveling floor solution on an undried base, then the moisture not involved in the hydration process will definitely swell the finish layer when it dries, resulting in cracks.

Of course, not everyone has a moisture meter. But you can use another proven method to control the moisture content of the base.

A square sheet of polyethylene film (at least 100 µm thick) is cut out with sides of approximately 1000 × 1000 mm. It is spread on a concrete floor and attached to it around the perimeter with construction tape. In this position, this impromptu "measuring device" is left for a day. If after this period the film remains dry, you can fill it. But when traces of perspiration or, even worse, drops of condensate are visible, the concrete screed has clearly not yet reached the desired condition.

Failure to comply with the surface preparation technology for the self-leveling floor, will necessarily lead to deformation of the finish layer. The base must not only be dried well, but also, preferably, sanded. For this purpose, industrial or manual grinders are used.

During this process, the pores of the concrete structure are opened, which will contribute to the creation of high adhesive characteristics of materials. Further, the surface must be thoroughly cleaned from the remnants of dust and dirt, using a powerful vacuum cleaner for this. All grease, oil, bituminous stains will also have to be eliminated - they must be cleaned down to “healthy” concrete.

Self-leveling floor prices

self-leveling floor

Detergents. When preparing the base, in addition to a vacuum cleaner, cleaning agents are used to clean it, which should be a special acid - a converter of cement deposits. After surface treatment with this compound, it must be further sanded.

Do not use household detergents to clean concrete, as they are absorbed into the structure of the material, and it is impossible to remove them completely. The components that make up detergents can also lead to peeling and cracking of the self-leveling floor.

Lack of or poor-quality application of the primer composition- one of the common reasons for the sad results of pouring.

A properly primed base is always a prerequisite for a quality self-leveling floor.

The cleaned surface must be properly primed, and it is advisable to use the composition of the same manufacturer for this process, which is planned to level the base. The primer should be applied to the entire surface of the base - even very small areas should not be skipped. And it is better to do this process two or three times, waiting for each layer to dry. The primer will bind the concrete structure and create the prerequisites for good adhesion of the base and the self-leveling floor.

Repair of the base concrete screed. If the screed is old but in reasonably good condition, fine cracks may not be visible on it. But after grinding the surface or drying the primer layer, cracks may appear.

The self-leveling floor cannot be laid on such a base, so the screed must be repaired. This process can be carried out in the traditional way, that is, the crack is widened, primed and filled with concrete mortar or a more elastic and quickly hardening material, for example, one of the fillers suitable for concrete repair

Sealing cracks with a special repair compound

Such repair compounds are very often offered by the same companies that produce mixtures for.

If the repair is carried out in the traditional way before applying the primer, then special solutions are used after it dries.

Repair of a screed with reinforcement of the surface with a sickle mesh

Some craftsmen use a sickle mesh to strengthen the screed, laying it on separate sections or completely on the entire surface.

If you do not repair the cracks on the base rough screed, they may appear through the layer of the self-leveling floor.

Incorrectly carried out application of self-leveling floor mortar. A violation of the technological process of mixing the solution, its pouring and distribution over the surface can lead to swelling and cracking of the self-leveling floor. Therefore, it is imperative to act, strictly following the manufacturer's recommendations placed on the packaging of the dry mortar.
Insufficient strength, leveling the base, screeds. If the rough screed is old, or is made of poor-quality mortar that does not have good strength after maturation, then the self-leveling floor will begin to quickly collapse. Therefore, the repair of an old draft screed or the arrangement of a new one should be carried out with maximum quality. If necessary, the old, unreliable screed is completely dismantled, and a new one is laid in its place.

Important rules for pouring concrete screed

In order for the base of the floor to be strong and reliable, you need to know how to approach its arrangement. It is this process that is described in detail in a special publication of our portal.

cement prices

Absence of a damper tape around the perimeter of the self-leveling floor. The technology for arranging any type of floor, whether it is a capital screed or a leveling bulk layer, requires the use of a damper tape, which is glued at the bottom of the wall around the entire perimeter of the floor.

Ignoring the laying of damper tape around the perimeter of the floor is to plant a “time bomb” in it

This material is designed to preserve surfaces from deformation and cracking, as it is able to compensate for the expansion processes of the material when temperatures change.

The layer thickness parameters are not respected. The manufacturer indicates in the characteristics of the mixture the permissible range of thicknesses of the self-leveling floor layer. If the recommendations are not followed, the coating may acquire a “cushion” effect, which will result in the delamination of the solidified solution from the base.
drafts. When filling and distributing the solution over the surface of the rough screed and during the solidification of the composition, all windows and doors are kept closed. Drafts must be completely excluded. Failure to comply with this rule may also well cause swelling and cracking.

How to repair a defective self-leveling floor?

It should be noted right away that it is not always possible to repair the self-leveling coating. In some cases, it is necessary to completely dismantle a low-quality layer and then, after carrying out comprehensive preparatory operations, equip a new one.

The first step after solidification of the bulk mixture distributed over the floor surface, it is necessary to revise this layer for any flaws.

If a crack or other defects are found, then you should not immediately begin to eliminate them. It is necessary to monitor their "behavior" for several days. Only after that it will be possible to make a decision on the tactics of further actions.

If the cracks have expanded and elongated, numerous branches have come from them, or other flaws have formed - delamination and swelling, which occupy more than 15% of the surface, then, unfortunately, the coating will have to be dismantled and the surface leveling work should be carried out again, starting from the preparation of the base.

If the defects are localized in separate areas and do not tend to expand and grow, then it is quite possible to repair the surface.

Crack repair

Crack repairs are carried out in the following order:

Illustration	Brief description of the operations performed
	The detected crack should be carefully expanded. The tool for this process must be selected depending on the thickness of the bulk layer. Most often, the expansion is carried out with the help of a "grinder", installing a disk for working with stone on it. Another tool suitable for expanding cracks (with a large layer thickness) can be a perforator with a special chisel attachment. The crack must be expanded to 8÷10 mm, to the depth of the layer. If necessary, the crack is limited by making transverse cuts along its edges - this will prevent it from growing in length.
	Further, cut or removed areas must be well cleaned. It is better to do this with a construction vacuum cleaner, since there should not be any remains of chipped mortar, small debris and dust inside.
	The next step is a thorough priming of all surfaces of the crack to its full depth. It is even desirable to carry out this process two or three times, waiting for the previous layer to dry. The primer will bind the material and create good adhesion for the repair mortar. It is better to use a primer and a bulk mixture from the same manufacturer.
	Further, it is necessary to dilute the required amount of the dry mixture of the self-leveling floor and pour the resulting solution into the prepared crack. The poured mortar must be leveled flush with the main surface. If, after drying, the solution in the repair “patch” settles, you will have to walk along the crack with a primer, and then re-fill the roughness to the top with the solution.
	After the solution has dried, the crack and its surrounding surface should be sanded. To do this, you can use a “grinder” with an abrasive nozzle (“cup”) or a construction manual grater with an abrasive mesh or sandpaper stretched over it.

Screed floor repair

Defects such as local delamination and layer swelling require more extensive work, but can also be repaired without removing the entire bulk coating.

The sequence of work is not much different from the repair of cracks

The process is carried out according to the same principle as the repair of cracks, but has some nuances. Therefore, it is also worth considering step by step:

After the revision and detection of swollen and locally cracked areas of the self-leveling coating, before dismantling the layer, the damaged area should be marked.
When marking out, the area for future dismantling should include the entire area of swelling or cracking, plus at least 100 mm of unaffected area deformation on each side. This must be done because of the weakening of the adhesive properties of the leveling layer and the base. If this recommendation is neglected, then the swelling of the coating may continue near the newly repaired area.

The swollen or cracked area will have to be removed completely, with the capture along the edges of "healthy" areas - at least 100 mm

Removal of the damaged area is carried out with the help of a "grinder", which cuts along the marking lines. The cuts will limit the growth of the deformed area.
Further, the self-leveling floor is crushed inside the cut out zone. This process should be done using a puncher, or manually using a chisel and hammer. The work must be done very carefully so as not to touch the “healthy” areas of the coating, otherwise you will have to unwittingly expand the repair area. In addition, care must be taken not to touch or damage the leveling roughing screed located below.

Angle grinder prices

angle grinder

The next step is to prepare the dismantled area for a new pour. First, pieces of broken mortar are removed from the repair area. Next, the vacated area must be thoroughly vacuumed.
The next step is a thorough priming of the cleaned area. Especially abundantly and accurately, without "gaps", it is necessary to apply the composition to the edges of the zone, that is, to the ends of an intact self-leveling floor throughout the entire thickness. It is better to apply a primer in two or three layers, which should be well absorbed and dry.
Next, a solution is prepared for pouring the repaired floor segment. It should be identical to the main layer both in composition and consistency.
The mortar must be poured, taking into account its future shrinkage during curing. The amount of shrinkage is usually indicated by the manufacturer on the packaging of the mixture. In the case of a small thickness of the fill layer, the recommendations can be neglected. But if the solution is poured to a thickness of 70 ÷ 80 mm, it is advisable to immediately accurately calculate the shrinkage, based on the instructions.
To fill a thick layer, taking into account future shrinkage along the perimeter of the area to be poured, it is necessary to equip a low formwork made of plywood or wooden slats.
Then the filling is done.
After the mortar hardens, the formwork is removed.
Some craftsmen install formwork inside the perimeter of the repaired segment, on a rough screed, from thin plywood 3 ÷ 4 mm. Thus, after the removal of the formwork elements, a small gap is formed between the main floor layer and the repair one. A twine is laid and deepened into the formed seams, after which they are poured with the same solution. In this case, the mortar in the gaps must be poured to a depth of at least 5 mm above the laid twine.
After the mortar has dried and hardened, the repaired area, as well as the floor surface around it, are sanded. At the same time, the floor area processed by grinding should be periodically checked using a building level for horizontalness.

Before laying on the decorative finishing material, the protruding excess of the damper tape installed along the perimeter of the floor is cut off. And then a primer is applied to the entire surface.

* * * * * * *

So, we found out that the reasons for the appearance of cracks and swellings are primarily violations of the rules established by the technology. Therefore, having decided to level the floor on your own, you must strictly follow the recommendations of the mixture manufacturer - from preparing the base and mixing the solution, ending with pouring and distributing it over the rough screed.

If professionals are invited to perform this work, then you should not choose a random team of builders. It is better to turn to trusted companies that have been doing similar work for a long time. In addition, qualified private builders-finishers provide their services, who can provide video and photo evidence of their skills. And then with a high degree of probability it will be possible to hope that repair work on the self-leveling floor will not be required at all.

The video below will supplement the informational content of the article:

Video: Floor repair techniques

OOO "PolyTek System" 636

BY TYPE

Bulk floor in the apartment

Among floor coverings, used in the apartment, self-leveling floors are popular today, overshadowing even the laminate and tiles that were previously in demand. In their favor are such facts as:

abrasive resistance;
a variety of design solutions for apartments;
long service life.

In apartments, three types of coating are most often applied:

epoxy flooring;
polyurethane flooring;
cement-acrylic;
methyl methacrylate.

Epoxy resins are highly decorative. Floors can be matte or glossy, three-dimensional or backlit. The coating is resistant to moisture and household chemicals. An attractive price combined with high wear resistance has made this type of self-leveling floor one of the most popular among customers. Polyurethane floors, as well as epoxy floors, are durable, not afraid of moisture and chemicals, and resistant to abrasion. Cement-acrylic self-leveling floors are durable, non-slip surface, resistant to moisture. Most often used in the bathroom, toilet or kitchen. Methyl methacrylate self-leveling floor has a short hardening period of the layer, ready for use in 2-3 hours.

Benefits of using a self-leveling floor in an apartment

As a floor covering apartments self-leveling floor is used not by chance. Among its main advantages, customers and specialists distinguish:

durability of the material (at least 15 years, with a thick layer - more than 30 years);
versatility (can be used as an independent coating (in combination with the "warm floor" system), as a base for a laminate or carpet);
tightness (moisture does not penetrate into its structure, bacteria dangerous to health do not start);
the presence of fungicidal additives;
strength (may be damaged by strong point mechanical impact);
a wide range of colors to enhance the design.

Disadvantages of bulk coating

With a large number of pluses, self-leveling floors at home are not without minuses:

long and laborious preparation of the base;
it is recommended to use with a water system "warm floor";
high cost (taking into account the materials used);
strict adherence to technology.

Filling the self-leveling floor in the apartment

The technology of filling the self-leveling floor in the house experts verified to the smallest detail. A slight deviation from the technology will lead to the rapid arrival of the coating in an emergency state. The result of violations is the repair of self-leveling floors, which is only slightly inferior in price to the original filling. The work should be carried out by professionals, but it is better for the owner of the dwelling to know their order in order to be able to control it.

Self-leveling floors are poured onto a cement or concrete screed. It is necessary to carry out the dismantling of old coatings, leveling and repairing the old screed. Next, the floor screed is preliminarily, qualitatively cleaned of all types of contaminants, primarily oil or paint stains. From this, the quality of styling depends quite strongly. To improve the adhesion of the polymer mixture to the screed, the latter is covered with a primer layer. Beacons are installed on the floor. Then the composition of the self-leveling floor is distributed from the far corner of the wall to the exit from the room, its amount is calculated in advance, even when preparations are underway.

It is important to use quality materials correctly, observe technology and time frames in work. To create a flat surface, so that it is free of defects, it is recommended to install beacons on the very surface of the floor and at the base of the walls. Masters should not allow the formation of air bubbles on the surface. After solidification, they lead to serious defects, not to mention the fact that the expensive composition will be damaged.

Repair of polymer self-leveling floors

Loss of bulk polymer coating its performance may occur as a result of long-term operation or due to a violation of the filling technology. In the first case, due to high strength and long service life, the surface simply loses its attractive appearance. To update it, you just need to sand the coating and apply a new thin polymer layer. This work is done quickly and is relatively inexpensive.

More difficult to work if the resulting defects are associated with a violation of the pouring technology. When performing repairs, the technology that is necessary when pouring the coating in a residential area is strictly observed. The materials that are used in this case must match those that were originally used to improve adhesion.

Where to begin

Repair of self-leveling polymer coatings in apartments should begin with a thorough check to find out:

how much floor area is damaged;
what caused the defect;
how many layers will need to be replaced during the repair.

If the damaged area is large, and the reason for them was the incorrect installation of layers during pouring, it is more profitable to consider the option of dismantling the coating and pouring a new one in compliance with the technology and the choice of high-quality materials. If the defects are minor, and they can be simply leveled, then floor repair is the best choice. The main thing is to entrust it to qualified specialists. PoliTek System LLC performs repairs of polymer self-leveling floors in residential premises with a guarantee, which is especially important when choosing a contractor.

Types of defects

The most common damage to poured concrete and epoxy floors caused by improper pouring:

cracks;
swelling and tubercles;
color changes (whitening);
delamination.

Stages of self-leveling floors repair

Restoration of self-leveling flooring in residential premises is carried out by the specialists of Politek System LLC as follows:

Examine the floor in the room and identify defects.
In case of swelling, cracks, discoloration, the upper polymer layer is dismantled with a perforator (so that there are no delaminations), the surface is prepared, a primer is applied, and a new polymer layer is poured last.
If cracks are found, work is carried out in a similar manner. A feature of the restoration of the coating in case of cracks is the study of the depth of damage.
It is necessary to dismantle all layers. Laying a new coating on a dismantled site is carried out in compliance with the technology for each level.
Peeling is a defect that provides for the most difficult repair, since not only the polymer coating can be separated, but also all layers, including the screed, to the base.

Repair of self-leveling polymer floors in case of peeling

If this type of defect is detected, an investigation is carried out, allowing you to determine which layers need to be restored. At the same stage, the area of damage is determined. Often it turns out that the areas located near the defect have the same problem. Soon they will need the same repairs. In this case, it is more expedient to remove the entire coating laid in violation of the technology, which led to the formation of problems.

Such repairs are not cheap pleasure, and for its implementation it is necessary to invite professionals with experience in pouring self-leveling floor coverings and carrying out repair work

Ordering repairs in the company "PolyTek System" LLC

Politek System LLC provides services devices of self-leveling polymer floors on a concrete screed in apartments and repairs this type of coating. The main reason for contacting us is that highly qualified specialists who own the latest technologies and use modern equipment work in the state. In addition to experience and equipment, the company pays great attention to the quality of the materials used. Given that a slight violation of standards leads to the rapid formation of defects, specialists do not save on this item of expenditure. The floors filled with them will last for a dozen years, which will fully justify the costs incurred.

There were problems with the self-leveling floor - the company "PolyTek System" is ready to correct the situation and guarantee a quality result.

We are ready to offer you device (installation) of self-leveling floor in any premises. Our polymer-based materials can be poured in any room, they contain additives that give them decorative (for example, colored - tinted according to the RAL color chart, transparent for a pattern, like linoleum, marble) properties and other components that give them resistance to wear - no repair is needed for a long time.
Ideal foundation in order to pour the coating is a material such as concrete (or should be such as a concrete floor or cement screed). The thickness of the bulk coating very much depends on the basis on which it will be poured. The calculation can be done by our employees, call us and we will tell you the price of materials and the cost of work for your area. All items are in stock and available for delivery.

Repair of polymer floors is carried out according to strict technology with strict observance of all norms and requirements for the operation of building materials. If the repair technique does not meet the specified criteria, there is a high probability of repeated damage to the coating, which greatly complicates the further use of the floors, and leads to their complete reconstruction.

Among the many reasons that provoke surface deformation, it is necessary to highlight the key ones:

swelling of the soil in the cold season;
poor-quality tamping of the soil base;
violation of the waterproofing barrier or its absolute absence.

It should be noted that such factors often occur in rooms that are not equipped with heating systems. We will talk about other causes of damage to self-leveling floors and ways to troubleshoot in this article.

Frequent defects of polymer floors

Most of the flaws that have appeared in this type of coating can be corrected without resorting to dismantling the entire surface and a full repair. It will be enough to cover the marriage with finishing mixtures with leveling properties. But if more complex problems with the floor have formed, a major removal of the upper face layer may be required, and in some cases the reconstruction of the concrete surface.

The consequence of various reasons are such malfunctions of the polymer coating:

bundle;
swelling of the finish surface;
cracking floors;
coiling;
cloudy glossy reflection;
pits or tubercles formed;
small particles protrude from the top of the layer.

In the presence of these or similar manifestations, repair of self-leveling floors is required. There are several ways to restore the previous state of the floors, each of them depends on the complexity and type of damage.

In order for the repair of polymer flooring to be effective, specific knowledge of building materials will be required. In this case, it is better to entrust the work to qualified specialists. Professionals will select the necessary technique, material and the necessary construction equipment. Then the repair of polymer floors indoors will be effective.

Delamination of the polymer coating

In order to qualitatively repair the floors, it is necessary to determine the reasons that caused problems with the uniformity of the coating. As a rule, most of these factors lie in non-compliance with the rules of work technology. It is possible that the surface of the concrete floors was not thoroughly cleaned of dirt and dust before applying the primer. As a result, there is a swelling of the polymer floors, and a slight displacement with directed pressure.

In order to qualitatively fix the problem, it is necessary to carry out the following work:

Accurately identify the extent of the violation in order to calculate material consumption and labor process time.
Remove the peeled piece of coating, view the condition of the base. With a satisfactory result, pouring a polymer screed is allowed. In the opposite situation, you will need to dismantle the middle layer of the base.
Before starting the application of a new composition, the surface should be degreased with high quality. The mixture is prepared in strict accordance with the manufacturer's recommendations.
When the filling is completed, the formation of air voids is eliminated by means of a special studded roller. Then the new layer needs to be leveled, after solidification, polished with high quality.

The final stage in the repair of polymer floors is especially important, as it gives a holistic appearance to the floor surface. If you do not take into account such nuances, the place of repair will immediately catch the eye.

This technology for removing delaminations in self-leveling floors is often used in apartments or residential buildings, when the quality of the initial work does not meet the manufacturer's requirements.

As practice shows, cracks form in the polymer floors of offices and industrial premises. This leads to a clear neglect of the norms of the permissible load on the coating. As a result, cracks appear on the surface of self-leveling floors, the aesthetic appearance is lost, and deformation of the base develops.

In rare cases, the middle and lower layers of the polymer floor are broken, more often this happens with the upper finish surface. When the problem becomes visible, repair of self-leveling floors inside the building should be started immediately. Such an urgent need is explained by the fact that the floors of this technology combine several materials into a single whole. If cracks appear in one area, in the absence of a proper response, the problem becomes widespread. Further operation of the damaged coating will provoke an increase in the depth and area of cracks, destroying not only the surface, but also the base.

The best solution to the problem would be to immediately apply a new mixture to the deformation area. To carry out the necessary work, you will need the following:

Inspect the damaged area of the screed to determine the actual size of the potholes. It is important to identify hidden defects here, otherwise the problem will happen again.
Using a grinder, you need to align the edges of the scars so that the width of the cracks is no more than one centimeter. In this case, the adhesion of the solution to the base will be stronger.
Treat the prepared surface with mastic.
In the process of preparing the composition for self-leveling floors, one should adhere to known technology.
The prepared section of the screed is poured. If necessary, you can wipe the boundaries of the fill after the solution has completely dried.

When the repair of self-leveling floors is completed, the area of restoration of the coating should not be subjected to mechanical stress for two or three days after the restoration activities.

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