Waterproofing the floor in the apartment: features of the choice of insulating materials + work procedure

Basement waterproofing methods

There are several types of basement waterproofing:

• non-pressure - will protect the basement from rainwater entering it, will help in case of floods;
• anti-pressure - used if the basement is constantly flooded with groundwater;
• anti-capillary - will not allow drops of water to seep through cracks and joints, as well as through building materials.

There are several ways to waterproof a basement.

Methods for waterproofing the floor in the basement of the house can also be divided into:

• pasting or roll;
• painting;
• impregnating or penetrating;
• cast;
• injection;
• membrane.

Glue waterproofing is used if the humidity in the basement is low and the groundwater threshold is low. As a pasting waterproofing material, roofing material, hydroisol, folgoizol or roofing paper are usually used. Polymeric sheet materials can also be used. A kind of multi-layer carpet is formed from them, while all layers are glued together. The material is glued on a pre-primed layer of mortar until the final pouring of the screed.

Bitumen-roll waterproofing

Paint waterproofing is quite simple, it is used on the floor, and on the walls, and on the basement ceiling. Great for well poured concrete floors. Previously, it was carried out using bitumen-based mastics, but, as practice has shown, this is not the best option. Bituminous mastics quickly lose their waterproofing properties, as they crack. It is much better to use mixed polymer-bitumen or bitumen-rubber substances.

Application of coating waterproofing

Impregnation waterproofing is usually done before basement floors and walls are tiled or covered with other finishing materials. Impregnations are mixtures containing bitumen or polymer varnishes. The method is based on the fact that the substance with which the surface is treated penetrates through the smallest pores and cracks to a depth of 60 cm and crystallizes inside them due to the chemical reaction of the so-called penetrates - special reagents. Hence, another name for the waterproofing method arises - penetration. Reagents can be aluminum oxide, alkali metal carbonates, silica. This type of waterproofing is applied very simply, and serves faithfully for a long time.

Liquid glass for the floor

Injection waterproofing is a subspecies of penetrating waterproofing. But it is performed with a fluid gel, which is simply injected into cracks and holes. The gel can be made from microcement, acrylate, polyurethane or epoxy. This type of waterproofing allows you to process hard-to-reach places without any special material costs, however, the technique is rather complicated and is usually performed by a specialist.

Injectable waterproofing

Cast waterproofing is the most reliable option that will protect the basement from the penetration of any moisture. In this case, all surfaces are filled with special mastics or solutions. Thus, a reliable, durable and thick layer of waterproofing is formed. By the way, the molded form of moisture protection can be cold, hot, asphalt-polymer.

Cast waterproofing

Membrane waterproofing is the use of special membrane materials about 2 mm thick to protect the basement from water.This type refers to roll types of waterproofing. These materials also have thermal insulation properties and often already have an adhesive layer, which means that they may not need to be glued. The membranes are very light and do not give additional load to the foundation.

Membrane waterproofing

Table. Types of membrane materials.

View	Description
PVC membranes	They are made on the basis of plasticized PVC, they are a two-layer film, the top layer of which is made of plasticizers. The membrane is fire-resistant and at the same time it isolates water well, it is very elastic, it can be laid at low temperatures. To obtain a seamless coating, the edges of the two cuts of membranes are joined using a special apparatus.
EPDM membranes	The material is also called synthetic rubber. It is able to easily withstand low air temperatures and ground movements. Durable.
TPO membrane	Produced on the basis of thermoplastic polyophenes. This material has two layers - rubber-polypropylene and reinforced with synthetic fibers. The material combines the waterproofing properties of rubber and the high strength of the reinforcing mesh. It's expensive, so it's rarely used.

pvc membrane

Causes of excessive dampness in the basement

No matter how hard the builders try, it is very often damp in the basement if no measures were taken against moisture.

General principles of waterproofing

What are the main causes of water falling into the basement?

1. In old buildings, due to temporary deformation of the foundation, cracks can form through which water penetrates. Most often they are formed in the area of ​​\u200b\u200bthe joints of the wall and floor.
2. Water appears in the basement even if a blind area was not created during construction or if it collapsed over time.
3. The penetration of groundwater due to raising their level can also cause moisture in the basement or even flood it.

Groundwater in the basement

Basement waterproofing

The close occurrence of groundwater is especially dangerous for the basement. The fact is that it is impossible to get rid of this underground stream, since nature controls it. The first time after the construction of the building, groundwater will not penetrate so much into the room, but over time, they will expand all possible cracks and the building will be regularly flooded. It is pointless to pump out water with a pump, since they will again and again fall on the basement floor.

Water in the basement is a problem familiar to many

Why do waterproofing before floor screed

Many believe that repairs in living rooms without high humidity do not require additional floor work. But the first judgment may be wrong. Waterproofing works are needed absolutely everywhere, and there are several proofs of this:

• Protection against external leaks. In a living space, the bathroom and kitchen are the areas most prone to flooding. At the same time, the global nature of the process will not affect the final result. And, provided that the apartment is above the ground floor, even an overturned bucket of water can cause contention between neighbors. Another type of external leakage is a screed. More precisely, water, which is a significant component of the casting mixtures. And which can also seep to people living on the floor below.
• Protection against internal leaks.The level of humidity in rooms located close to the ground will definitely be increased. Such buildings include private houses, basements, apartments on the ground floors and garages. Needless to say, concrete is a porous material that is easily saturated with water. And in order to prevent moisture from spreading over the floor and walls, leading to cooling and destruction of them, experts recommend doing double waterproofing - before and after the screed. This is especially true for the construction of private houses.
• Improving the quality of the screed. In order for the concrete screed not to crack when setting quickly, it needs to dry very slowly. Experienced craftsmen even additionally moisten the coating by covering it with polyethylene. Thus, the drying time of the concrete screed is significantly extended. From a professional point of view, the waterproofing layer will contribute to this process in the best possible way.

The scheme of waterproofing the floor under the screed

Roll insulation materials

Roll insulation materials can be called a traditional material. In the repair of apartments, they have found wide application in the construction of cement-sand screeds. Here it is necessary to distinguish between rolled insulating materials according to the method of laying. The separation here is simple, some materials are glued, that is, they have an adhesive edge, other materials need to be welded, that is, fastened with a gas burner.

Floor waterproofing with roll materials - technology

Concrete the floor must be cleaned of dirt and dust. There should be no construction debris on the surface. (It may damage the insulator).Self-adhesive roll material is laid in strips with an overlap equal to the width of the edge with glue. An overlap of 15-20 cm is made on the walls.

That's all! Let me remind you that floor waterproofing is required in the bathroom and other “wet” rooms, at the junctions of the floor and walls in rooms when installing a self-leveling floor and screed. Mandatory waterproofing with roll materials when installing a cement-sand screed. In some cases, the roll waterproofer is replaced with a plastic film.

Other articles in the section: Floor preparation

• Betonokontakt in floor preparation for screed
• Do-it-yourself floor waterproofing
• Floor primer
• Preparation of the base for linoleum
• Preparation of the base for self-leveling floors
• Preparation for parquet flooring
• Floor preparation for underfloor heating
• Do-it-yourself floor preparation for laminate
• Preparing the floor for a cement-sand screed
• Checking the floor for light

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materials

Today, many substances have insulating properties, which are used in the arrangement of the floor.

Many experts recommend using isospan for such purposes, but in addition to it, there are several groups of waterproofing materials:

Waterproof paints. The main component of such solutions is bitumen, which is mixed with various polymers.The application is carried out with a regular brush, which allows you to cover them even in hard-to-reach surfaces. To obtain a high-quality result, the surface must be carefully prepared before processing. Therefore, this approach has not been widely adopted.

• Insulating fills. The product is a liquid that is simply poured into bases. It is made from asphalt concrete and bituminous components. Experts recommend using fills on concrete surfaces, as they practically do not crack and do not diverge, like wood planks.
• Bulk substances. This type of material consists of granules that are not able to absorb liquid. The substance is not only a high-quality waterproofing agent, but also not a bad heat insulator. Therefore, the use of bulk mixtures makes it possible to exclude the introduction of mineral wool or other heat-insulating material.

The last group includes isolon, polyethylene films, thermal fiber, bituminous rolled, as well as several types of membranes. The latter type of materials is used to organize vapor barrier. The structure of membrane products suggests the presence of several layers of tissue that form a sealed substance.

How to lay correctly?

The waterproofing layer involves not only the insulation itself, but also intermediate materials that form the frame and thermal insulation.

Laying such structures involves several preparatory operations:

First of all, you should inspect the old base for damage.

If the floor is made of wood, it is important to remove rot and sagging boards. But waterproofing is best done on a concrete slab, especially if the surface is on the ground floor.

Ceilings between floors must be checked for strength and quality.
If the surface is ready for decorative finishing, then the base should be treated with special strengthening solutions. For wood, impregnations are used that increase resistance to burning and decay. Floors without screed are treated with strengthening primers.
When the surface is ready, a subfloor should be formed. In some cases, it is built directly on the ground. But this approach will not allow the wood to last for a long time. Therefore, it is better to use concrete screeds as draft bases, on which logs are already laid for finishing wooden structures.

Arrangement of a protective "pie" consists of the following sequential actions:

Begin the procedure with waterproofing the subfloor. To do this, the film is rolled out over the entire surface, placing it between the lags.

It is important to fasten it in such a way that there is no tension. If the width of the sheet is not enough, it is joined to another, forming an overlap of at least 20 cm

When everything is fine, the material is attached to the base with adhesive tape, staples or special nails.
A heater is mounted on top of the film. Its fastening is carried out in different ways depending on the selected substance. If wooden logs are used, then mineral wool is inserted between them. It should fit snugly between them, without forming gaps.

The procedure ends with the installation of a decorative floor. As you can see, the arrangement of waterproofing is not very complicated.

For information on how to make the installation of rolled waterproofing, see the video.

Roll waterproofing: advantages and disadvantages

The advantages of roll coating include the following:

• high elasticity and the ability of the material to resist stretching, cracks and other deformation;
• ease of installation;
• preservation of properties throughout the entire period of operation;
• good adhesion and reliable fixation - the coating is suitable for all types of surfaces (concrete, wood, metal);
• minimum drying time, further work on the insulating layer can be started immediately after its laying;
• waste-free installation.

Roll waterproofing materials

The disadvantages of roll waterproofing are:

• duration of the process;
• the need to attract a significant workforce;
• preliminary preparation of the base;
• sharp and unpleasant odor of the material;
• The optimum air temperature for work is at least +5°C.

The average duration of operation of the rolled material, applied according to all technological rules, is from seven to ten years.

Waterproofing

Three important rules for pre-priming

1. In view of the fact that waterproofing under a self-leveling floor cannot be applied to a porous base, before starting any work to create a waterproof coating, the floor needs to be treated with a primer and subsequent primer. Its need is due to the presence of possible irregularities, bends and other damage that the base of the floor of the room may contain.

   Before work, apply a primer to the floor

2. The degree of priming in each case is selected individually, depending on the number of defects listed above, that is, until all the pores are filled.

   For each method, the primer may differ.

3. As a primer material, choose in accordance with the recommendations of the primer manufacturer, because its different brands may differ from each other in their properties and compatibility with certain primer materials.

It is worth paying attention to the manufacturer's recommendations for the use of primers

What to pay attention to when doing work

New buildings are characterized by high humidity. Such a microclimate in the house can not only spoil the repair, but also damage the load-bearing parts of the building. Waterproofing of the house is carried out in the following order: foundation, basement (if any), floors. So you can protect wooden structures from decay, and metal structures from corrosion.

One of the types of decorative self-leveling floor with protective properties

Due to poor-quality waterproofing of the floor of the first floor of the house, doors often suffer. Moisture rises up the wall, impregnating the unprotected parts of the wooden box. The structure loses its strength, deforms, loosens and begins to rot.

Peculiarities

The arrangement of the floor of the bathroom, kitchen and bathroom in apartment buildings is regulated by SNiP and assumes its location is 2-3 cm lower than in adjacent premises. This design contributes to the localization of water in a limited space and its rapid collection in the event of an accident.

You can limit the spill of water with the help of a step or threshold-curb. Installation of waterproofing is carried out during the renovation or construction phase of a building and is applicable to any type of foundation, including old wood, cement and concrete floors, subfloor screed and heating system.Laying of waterproofing material can be carried out simultaneously with the arrangement of insulation and vapor barrier.

When you can't do without floor waterproofing

There are a number of situations when it is necessary to waterproof the floor:

• In a private house, waterproofing is carried out on the ground over an air cushion of crushed stone or on a ceiling located above the basement
• In apartments located on the ground floor of an apartment building, waterproofing under the screed is also necessary.
• In rooms with a high level of humidity (bathroom, toilet, kitchen), waterproofing is required between the screed and the floor covering, it is also desirable to perform it in the hallway
• When carrying out work on the improvement of the balcony, leveling the floor with a screed under it, waterproofing is also required
• In the basement, a multi-layer complex waterproofing of the floor is required to protect against groundwater, and if their level is higher than the floor level, a drainage system is additionally equipped
• Need waterproofing floors in the bath, sauna. But if the floors are concrete, without wooden flooring, you can get by with the addition of additives to the concrete to increase hydrophobicity and how to compact it with a vibrator to reduce porosity

If the bathroom or kitchen is located on the ground floor, that is, the floors will be exposed to moisture from both sides, it is advisable to perform roll waterproofing under the screed, and cover it with a layer of coating waterproofing on top. In a private house, it is recommended to perform double waterproofing, regardless of the purpose of the room. For the lower layer, roll materials with a vapor barrier function (membranes) are preferable.

In the living rooms of apartments located above the ground floor, floor waterproofing is usually unnecessary.But if it is planned to dismantle the old floors and level the base with a cement-sand or self-leveling screed, waterproofing under the screed is needed to prevent the solution from leaking down. In such cases, capital coating waterproofing is not required, it is enough to cover the base with plastic wrap overlapping and going onto the walls.

Stage 1. Surface preparation

If there is any old coating on the floor, then it must be completely dismantled, if possible, to a concrete base, and the protruding parts of the reinforcement and protrusions should be cut off with a grinder. This is done in order to improve the quality of waterproofing and reduce the risk of delamination of the insulating coating. All dust and all debris must be swept away or treated with a special construction vacuum cleaner, preparing the floor for repairing cracks.

Dismantling works

Deep cracks in the concrete base must be expanded and thoroughly cleaned. After that, fill all the recesses, cracks and joints with cement mortar (1 part of sand to 3 parts of cement). If necessary, when working on deep cracks, a reinforcing mesh should be used, which will be placed between two layers of cement mortar. If pieces of concrete break off in the process, they must be removed and the irregularities should also be repaired with a building mixture. The treated floor must be dried for 24 hours, and then sanded with coarse sandpaper.

Mortar crack repair

If the floor is wooden, it must be carefully examined, the boards should not “play” and sag. If necessary, they must be tightly fixed, partially replaced or completely repaired. It is not advisable to lay waterproofing coatings on sheets of cardboard or plywood, since they are short-lived.

Wooden floor repair. Strengthening floorboards

Along the entire perimeter of the base, a “fillet” is made with the same cement mortar that was used to close the cracks, and the junctions of the walls and the floor are rounded off. This will protect the material from kinks when planting it on the wall during the laying of the panels.

: 1 - seam to a depth of 5 mm and a width of 5 mm; 2 - priming; 3 - fillet in the area of ​​​​adjacency of the wall

Why do bathrooms need waterproofing?

The bath is very different from other buildings in the conditions in which it is used. First, the temperature rises from room temperature to very high, close to the boiling point of water. Secondly, humidity changes just as sharply inside the building. Thirdly, the design of the bath is aimed at maintaining such conditions in the course of its work.

According to the operating conditions, the bathhouse differs from other buildings

Due to these factors, the normal existence of a bath without waterproofing the floor is not possible - water penetrating from the room into the floors and foundation of the building causes a deterioration in the strength characteristics of building materials and their gradual decay (if we are talking about wood) and destruction. In addition, the humid environment below the bath floor is close to ideal for the growth and development of colonies of fungi or bacteria, which, penetrating into the air inside the room, can get inside a person and pose a threat to his health.

Why do you need waterproofing the floor in the bath

Therefore, in each bath there should be a layer of high-quality waterproofing material, which will become an insurmountable barrier for water between the fine finish of the floor and the structural elements of the floors.

Bath floor waterproofing

In addition, it should be borne in mind that for baths built in areas with a cold climate, thermal insulation is required, represented by mineral wool or expanded polystyrene. But when moisture gets in, these materials partially lose their properties, so they also need to be protected from water, like a rough floor or wooden logs.

Insulation of the floor in the bath with foam

Scheme of a bath floor pie with a water-heated floor

Nuances of the choice of insulating material and technology

Waterproofing the floor in an apartment and a private house is responsible not only for sealing, but also partially for ventilation of the room

Attention to the selection of materials (as in any work) will help to further increase the energy efficiency of a private house with corresponding cost savings.

Different ways of applying coating waterproofing

When choosing various options, they evaluate the future consumption (based on the area and nature of the premises) and the final cost. The opinion of a specialist with experience in arranging various types of insulation will be extremely useful.

The best way to protect the floor from water

Numerous methods of floor waterproofing have a common goal - the creation of a continuous coating, shaped like a pallet with 10-20 cm sides on the walls. A kind of container made by this method will collect condensate flowing down the walls in streams, spilled and splashed water. A monolithic waterproofing layer will not let moisture into the ceiling, prevent the destruction of the base. At the same time, it will get rid of rot, the resettlement of fungi and harmful odors emitted by these unpleasant representatives of the biosphere.

The goal is one, but there are many ways to achieve it.In fact, choosing the best option without knowing the specific technical conditions is not realistic. The choice of the most suitable waterproofing, the type of which determines technology of its device, depends:

• on the state of the processed rough surface;
• from the materials from which the floors are made;
• from the terms allotted for the complete arrangement of the floor;
• from the number of storeys;
• from the ability to reduce the height of ceilings and from a number of nuances, which can only be revealed while being at the facility.

The area of ​​\u200b\u200bthe room, the complexity of its configuration, the presence of a building hair dryer or burner and the ability to use them can influence the choice. It is impossible to ignore such significant arguments as the cost of the material and the complexity of execution.

It is highly doubtful that any technology meets all the conditions presented, but after a careful assessment of the pros and cons, the best method can still be selected.

Types of waterproofing

There are three main types of waterproofing: coating, gluing and impregnating. They differ in protective composition, appearance and method of application.

Okleyechnaya

This type of bathroom floor protection is a coating of surfaces with a special film coated with a bituminous, rubber or polymer composition. This type of waterproofing includes the usual and modern coatings:

• Ruberoid;
• Ecoflex;
• Isoplast;
• Isoelast.

Laying roofing felt under the floor tiles in the bathroom

Virtually all of them are based on a filled bituminous coating applied to a fiberglass or polyester base.

Laying isoplast on the bathroom floor

Pros and cons

The advantages of such a waterproofing coating are:

• No need to wait for the material to dry completely - you can walk on it right away;
• Durability;
• Good waterproofing properties.

Rolled waterproofing adheres tightly to the surface, does not require drying and allows you to immediately continue the repair work

However, such a coating requires special care when laying, in addition, the process is quite laborious, so it is better to invite specialists to properly perform waterproofing work in the bathroom.

Application of adhesive waterproofing requires special knowledge and experience

In addition, before laying the protective film, careful surface preparation and leveling are necessary - only differences of no more than 2 mm are allowed.

Coating

It is a mortar based on bitumen, rubber or synthetic ingredients, which is applied directly to the floor, bathroom walls before tiling. It is used more often than other methods of waterproofing.

Moisture-proof waterproofing is applied to the surface from one millimeter to several centimeters

Advantages of coating

Unlike gluing waterproofing, the coating composition can be applied to any surface without first leveling it. In addition, it does not require pre-drying - and on a wet surface after plastering, the waterproofing mortar is applied easily without losing its properties.

Due to the liquid consistency, the composition is applied in an even layer, has no joints and fills all the cracks and irregularities. Due to this, it gives the surface of the walls, the floor in the bathroom increased moisture resistance.

Applying a waterproofing layer in the bathroom

Among the advantages, it should be noted that such a composition is inexpensive, and it is easy to apply it yourself, without experience and special skills. In addition, it does not have an unpleasant odor, unlike roll coating.

Cleaning the bathroom with a liquid coating solution

Types of coating waterproofing

The main types of coating waterproofing compositions are bituminous and cement mastics. The first includes:

• Bitumen;
• Rubber crumb, latex fillers, plasticizers;
• Solvent.

Application of polymer coating waterproofing

The result of the combination of such components is a durable elastic composition that reliably retains moisture, preventing it from penetrating inside. In addition, such waterproofing is able to withstand both cold and hot temperatures.

Carrying out reinforcement before applying coating waterproofing

Cement waterproofing compositions are a mixture of cement, water, mineral filler. Mastic is easily applied to the surface, has high adhesive properties. It is more resistant to temperature changes than bitumen.

A paint roller is used to apply cement coating waterproofing.

Nuances of the choice of insulating material and technology

Waterproofing the floor in an apartment and a private house is responsible not only for sealing, but also partially for ventilation of the room

Attention to the selection of materials (as in any work) will help to further increase the energy efficiency of a private house with corresponding cost savings.

Different ways of applying coating waterproofing

When choosing various options, they evaluate the future consumption (based on the area and nature of the premises) and the final cost.The opinion of a specialist with experience in arranging various types of insulation will be extremely useful.

Types of waterproofing materials

The device for waterproofing the floor in an apartment consists of preparing the base, constructing a protective fence and a waterproofing cover.

There are enough varieties of waterproofing to choose the right one. In accordance with the work carried out, floor waterproofing can be:

• coating;
• plastering;
• cast;
• backfill;
• pasting.

Before performing any waterproofing work, you must follow a few rules:

• the base for waterproofing must be clean and dry;
• on the concrete floor, all screed defects are eliminated;
• the wooden base must be cleaned and sanded;
• the use of waterproofing materials must be carried out strictly according to the instructions.

Coating waterproofing

For coating waterproofing, bitumen-containing materials, bitumen-polymer or cement-polymer mastics are used.

Before applying insulating materials, the surface is coated with a deep penetration primer. It contributes to the strong adhesion of the base to the insulating materials.

Floor covering with bituminous material

The bottom of the walls is smeared with a protective layer. After applying the first layer of waterproofing material, wait for it to dry, and then apply the second layer. In places highly exposed to moisture, up to 5 such layers of waterproofing can be applied.

Plaster waterproofing

When performing plaster waterproofing, apply cement-polymer compositions. The temperature in the room where the work is carried out should be in the range from +5º to +30º.

The waterproofing material is applied in several layers.Wait 5-10 minutes between applications. Upon completion of the work, the waterproofing layer is protected from drying out, exposure to sub-zero temperatures and mechanical stress.

Cast waterproofing

Cast waterproofing is the highest quality possible. It is carried out by pouring liquid asphalt solutions on the floor in two or three layers.

The total thickness of such waterproofing is 2-2.5 cm. To perform cast waterproofing, it is necessary to prepare a formwork built around the perimeter of the room.

Application of cast waterproofing

The insulating material is heated to the required temperatures and poured into the formwork. The surface of the composition is leveled with a metal scraper and left until completely hardened. Due to the fact that this method is quite expensive in apartments, it is rarely used.

Backfill waterproofing

For backfill waterproofing, waterproof cavities are used, which are filled with bulk material. Betonites act as an active component. They, interacting with water, form a gel that does not allow liquid to pass through.

Waterproof cavities filled with loose material

Before filling the waterproofing material, it is necessary to prepare the cavities or make the formwork. The active component is poured into it. Then it is evenly distributed over the surface and compacted. It is desirable to plaster the top of the waterproofing layer.

Gluing waterproofing

Pasting waterproofing is a kind of "carpet" of rolled polymer-bitumen products. The work is carried out by layer-by-layer gluing of insulating materials from the hydrostatic pressure side. To stick the insulating material, mastic is first applied to the surface.

Sticking insulation rolls

Then a roll is rolled onto it and pressed with a hand roller. If air bubbles form under the material, they are pierced with an awl and, pressing down to the base, release it. The rolls are glued with an overlap of 10 cm. The top of the waterproofing is covered with a cement screed.

Please note that in each layer of gluing waterproofing, the panels are glued in one direction

Waterproofing with roll materials in the basement

If you decide to use roll materials, then the work must be done in the following sequence:

1. Produce basement with cement mortar.
2. Glue the rolled waterproofing material in two layers.
3. Build a clay brick wall to support the rolled insulation.
4. At the same time, about 0.5 meters must be retreated from the wall.
5. Soil must be poured between the wall and the clay castle.
6. Coat all joints and cracks with bituminous mastic.
7. In conclusion, you can still treat the surface with a coating mixture.

Roll insulation against moisture and water

After all the work done, we can assume that your basement is reliably protected from moisture penetration.

Conclusions and useful video on the topic

The method of waterproofing the floor using self-adhesive rolled waterproofing:

Technology of coating waterproofing of the floor:

Floor waterproofing can be done independently, however, the use of any material for floor waterproofing has a number of its own characteristics and you must strictly follow the manufacturer's instructions.

During the repair, be sure to take care of waterproofing, which will protect your apartment from the negative effects of water.And, by the way, it will help save money, because the cost of waterproofing is relatively small compared to repairing floor coverings or an apartment for neighbors in case of flooding.