Types of waterproofing strip foundation. Waterproofing strip foundations

The main enemy of building structures is moisture. Both atmospheric and ground water are dangerous for foundations. Do-it-yourself waterproofing of the strip foundation prevents problems during the operation of the building.

Why Isolation Needed?

The concrete surface of the foundation must be protected from liquid exposure. This is necessary to achieve the following results:

• preventing water from entering the basement or basement of the house;
• protection of concrete from washing out of particles and aggressive environment;
• preventing the harmful effects of cold.

The simultaneous action of water and negative temperatures is dangerous for the material. Capillary moisture penetrates into the foundation and freezes there. Water is a unique substance, only it expands when it freezes. Thus, the pressure inside the underground wall increases, which leads to its destruction.

Types of waterproofing

Waterproofing of the strip foundation prevents the destructive effect of various types of moisture on the structure. A system of three types of insulation is used simultaneously:

• Horizontal. Prevents capillary rise of moisture. The first layer is provided in the wall of foundation blocks just below the basement floor level. The second layer is performed above, along the edge of the foundation. It is designed to protect materials of different properties (for example, concrete foundations and brick walls).
• Vertical. It can be external (in most cases) or internal (in the presence of special circumstances).
• Blind area. It is necessary to drain rain moisture from foundations. It reduces the stress on the vertical insulation. It is made of various materials with respect to the slope. The recommended width is 1 m.

Waterproofing a monolithic strip foundation implies a vertical protection device along the entire height. In this case, a horizontal layer at the level of the sole is not provided. To protect the base from moisture, use a lean concrete preparation (class B7.5-B12.5).

An additional measure to protect the structure from moisture will be drainage. It plays the role of waterproofing the sole of the strip foundation and is provided 30 cm below the edge of the structure. The horizontal distance from the building is no more than 1 m. For drainage, pipes with a diameter of 110-200 mm (depending on soil moisture) are used, which are laid with a slope of 0.003-0.01.

All of the above methods are suitable for deep groundwater (more than 0.5 m from the bottom). If the groundwater level is high, it is worth considering using a different type of foundations, since measures to protect the structure in this case (dewatering, installation of a caisson) can be very expensive.

Building without basement

Insulation from moisture must be provided regardless of the presence of a basement. Here it is worth returning to the previous question "why is isolation necessary?" Its purpose is to protect concrete and extend the life of foundations, which is needed for buildings with and without a basement.

Waterproofing a strip foundation without a basement includes the following measures:

• vertical insulation outside the building;
• insulation between the edge of the foundation and the wall of the building;
• waterproofing the floor on the ground, which is connected to the previous one (together they form a closed loop);
• insulation of the foundation pad (for prefabricated structures).

When making a foundation from concrete blocks, the foundation pad is isolated from moisture using a reinforced concrete seam with a thickness of 50 mm. The use of other materials here will lead to deformation of the foundation.

Waterproofing materials

Different materials are used depending on the location of the insulation. Liquid bituminous compositions are most often used as vertical protection. Such a coating waterproofing is applied in two layers and is used at low soil moisture. Differs in low cost and simplicity of technology. The disadvantages include fragility.

There are also other options for vertical insulation of foundation walls:

1. Plastering. Simultaneously levels the surface and protects it from moisture. Such insulation can last 10 years; over time, cracks appear on the surface, into which moisture penetrates.
2. Okalechnaya. Various roll materials are used. The most inexpensive and unreliable option will be roofing material. Also, among builders, more modern materials are common: technoelast, technonikol, linokrom and hydroizol. Effective membranes are used less frequently due to their relatively high prices. For reliability, the basement insulation is carried out in two layers.
3. Penetrating. This type of insulation not only increases the resistance of concrete to moisture, but also its strength and durability. The formulations are able to penetrate to great depths and provide protection from water in all directions. This type has become widespread in the repair and restoration of old foundations.
4. Liquid rubber. It is applied to the surface by spraying. Differs in high elasticity and absence of seams. The disadvantage is the high cost.

At high ground level, the screen method of vertical isolation is used. For this, clay-based bentonite mats are used. Also in this case, an internal protection device is possible.

Horizontal waterproofing along the edge of the foundation is made of roll materials. The most common are roofing material, linokrom, hydroizol, etc. Laying roll materials at the sole level is not allowed. Instead, use:

• reinforced seam 50 mm thick between the foundation pad and the blocks in prefabricated technology;
• preparation (from lean concrete) under the sole of the foundation in monolithic technology.

There are five types of blind area around the building. Depending on the material, a slope is selected in the direction from the foundation:

• concrete 3%;
• asphalt concrete 3%;
• from crushed stone 5%;
• from paving slabs 5%;
• membrane (hidden) 3%.

The choice of material for the blind area depends on aesthetic considerations and financial capabilities. The most affordable option is concrete or asphalt.

Competent waterproofing of the foundation protects it from premature destruction. To guarantee reliable protection, all measures are carried out in a complex.

How to protect the bath from destruction as a result of the impact of groundwater? The answer to this question is simple - do-it-yourself waterproofing of the strip foundation will help solve this problem. It is necessary to protect from moisture not only the sole of the foundation, but also the basement and the basement. Knowing the rules for doing waterproofing of the strip foundation with your own hands, you can easily protect other elements of the bath. All parts of this building need high-quality waterproofing - walls outside, floor, roof, window and door openings, with the exception of internal walls.

Features of waterproofing the bath strip foundation

The strip foundation does not always need protection from groundwater. This becomes necessary when the level of groundwater flow is too high or when there is a possibility of a seasonal rise in the level of groundwater, for example, during a spring flood. In case of poor-quality construction of the blind area or its destruction, groundwater falls on the foundation from the outside. It is necessary to carry out isolation wherever there is a possibility of an increase in the amount of groundwater or its flow in places where hydrostatic pressure occurs. The waterproofing layer must be continuous and located outside the protected part of the building.

If groundwater occurs at a distance of no more than 1 m from the bottom of the bath base, the foundation needs waterproofing. In this case, the groundwater level can change. A distance of 1 m is the worst case scenario, usually occurring during spring floods. The groundwater level can be equal to 2 m, which must be taken into account when deciding on the implementation of capital waterproofing of the base. In this case, to protect the strip base from the negative effects of rising moisture, there is enough coating waterproofing.

The next situation associated with groundwater, leading to the need for waterproofing, is the possibility of a change in the level of groundwater with annual fluctuations. The groundwater level may increase with increasing pressure on the soil during the development of the adjacent territory. Or when drainage is made in neighboring areas and water is discharged from the drainage holes into a reservoir that does not have waterproofing. Such a body of water can affect the soil, even if it is located a kilometer from the foundation of your bath. In this case, you can get by with the implementation of waterproofing using coating materials. Regardless of the groundwater level, one condition must be fulfilled: the base of the foundation must be on a sand cushion 10 cm thick and a corresponding layer of rubble. Such a pillow protects the foundation from capillary rise in the height of groundwater. The crushed stone layer should consist of 4-5 cm particles.

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In what cases do you need to waterproof the foundation yourself?

If the groundwater runs too high, then before building the foundation with your own hands, drainage is required. Only then can the base be waterproofed. In the absence of a drainage system, the water under the foot of the building generates hydrostatic forces that reduce the pressure of the building on the ground. Due to the uneven distribution of these forces, the structure can move, and the base left without load topple over. Only the drainage system can cope with the hydrostatic pressure.

On clayey soils, the strip foundation should be protected from surface and ground water. Water seeps into clay and loam very slowly, so it is directed towards the structure. Drainage is required in this case as well. In the presence of aggressive waters in the soil, in the absence of waterproofing of the base, concrete can collapse in the same way as metal. Chemically active groundwater is especially dangerous. Reinforced concrete foundations in such an environment must be made of concrete W4 or higher.

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Do-it-yourself waterproofing of the bath foundation using coating materials

To protect against a seasonal rise in the groundwater level, you can use the most economical method of waterproofing with coating materials. Such insulation does not protect against aggressive waters. The bitumen mastic cannot withstand water pressure over 2 m. Such a coating is not resistant to tensile and displacement forces. To perform the coating waterproofing, the following materials and tools will be required:

Waterproofing material must be environmentally friendly and safe. Liquid construction bitumen is safe as long as it is not heated.

• bituminous mastic;
• geotextile;
• shovel;
• sand;
• brush.

The mastic should be applied to a clean, dry, prepared surface. The mastic must be protected from mechanical stress when backfilling with soil. In this case, dense geotextiles are used. When used for filling homogeneous soil, the waterproofing layer can be covered with wide strips of geotextile only in the corners of the structure. If the base is insulated to the level of freezing of the soil, the waterproofing will not need protection. To prevent it from appearing in the hardened bitumen, the corners of the base strip should be rounded.

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Do-it-yourself waterproofing of the bath foundation using roll materials

For heating, a building hair dryer is usually used, which creates high temperatures. You can also warm it up with a gas lamp. These are the main steps when performing waterproofing of the base of a building with your own hands.

Roll waterproofing is used to protect the foundation from the destructive effects of groundwater.

There are 2 ways to roll the material. The first of them is a vertical, quite convenient method. Laying begins from the top of the foundation. After covering the vertical surface to the length of the sheet, it must be bent and laid on a horizontal plane. It is not necessary to weld the material to the lower horizontal surface; it can be connected to concrete under soil pressure. The second sheet is overlapped.

For horizontal rolling, the roll is unrolled along the structure. First, the roll is rolled out on a horizontal plane without welding, the material is pressed by the soil. Then the material is glued to the vertical plane so that the lower part of this row covers the previously laid horizontal canvas by 20 cm. Not the entire canvas can be fixed, but only its upper edge. The material, together with the insulation, is fixed with bulk soil to the vertical plane, glued to it. The insulation work is finished with a sheet covering the upper horizontal surface.

This is a more complex rolling option, which makes it difficult to heat large sheets of material. The foundation is covered with roofing material, having previously applied a heated bituminous mass to it. Roofing material is placed in 2 layers. Both materials must be applied on a flat surface.

Do-it-yourself waterproofing of the strip foundation should be carried out only by specialists and only in compliance with all building rules and regulations. There is an opinion that the basis of a capital structure is not subject to negative effects. This is not true. The base systematically lends itself to corrosion and decomposition processes after it is completely poured and put into service. Waterproofing the foundation is extremely important, since without it, the structure will reduce its service life several times. The first to have a negative impact will be groundwater, which seeps into the walls and basements of structures. Systematic freezing of tape structures leads to a destructive character.

You can make waterproofing yourself, without contacting special specialized companies. First you need to calculate the amount of material, study the laying technology, select the appropriate material. Well-laid insulation should be solid, without interruption, regardless of whether it is horizontal waterproofing or vertical waterproofing. So how to make waterproofing.

Classification of materials by laying technology.

Lubricating material

The basis is bitumen, mastic. The view has several advantages:

• Affordable budget;
• high rate of internal plasticity;
• water resistance of the surface;
• ease of use, there is no need to have special equipment;
• good adhesion.

Disadvantage: short service life. As practice shows, the average resource is no more than five years, after which fragility and elasticity are lost. Cracks appear on the surface, the protection index is significantly reduced.

Recently, such type of products as waterproofing materials with various additives on a polymer basis is gaining wide popularity. Thanks to the introduction of the polymer, the level of elasticity, adhesion increases, the temperature spreads evenly over the entire surface of the material in the ground.

Procedure and technology

There is nothing particularly difficult, initially you need to carry out a high-quality preparatory stage. This is done like this: we clean the surface of all kinds of debris, moisture. Water on the walls is highly undesirable during installation. Next, we treat the surface with a special deep penetration primer. We are waiting for some time to dry, after which we apply the waterproofing itself. Waterproofing mixtures are recommended to be applied with a paint brush - a paint brush.

Roll material

The basis is determined by roofing material, which is used for the foundation. Alternatively, you can apply helastopley, aquaizol, which have related characteristics. For the processing of the foundation without a basement, basement floors, upper floors, roofs, vertical, horizontal roll-type waterproofing is used.

Types of material:

• Adhesive: glued to the work surface using special mastics or glue;
• surface: sticks on its own when heated to the desired temperature. A special tool is needed - a gas burner.

Benefits:

• Ease of use;
• duration of service life;
• the strength factor is above average with an impermeability index of almost 90%;
• reliability.

When choosing a subspecies of material, special attention should be paid to such an indicator as the degree of deformation. You can calculate it in a special table. The roll type of material can be perfectly combined with the coating type.

Technological process. Initially, we prepare the surface, clean it of foreign objects. Apply a small layer of bitumen mastic. We wait ten minutes and glue the roofing material, heating it from behind with a gas burner. The overlap at the joints should be at least fifteen centimeters. We also process it with a burner, so that the material grabs, and water cannot penetrate inside. The roll type is suitable for both tape and monolithic types.

Sprayed material

The spray type is a novelty in the construction market. The material is used for a strip shallow foundation, when overlapping the roof, to prevent the old layer of waterproofing. Among the pluses, there is one drawback - the high cost.

Benefits:

• Duration of service life;
• high coefficient of adhesion;
• ease of use;
• lack of a seam;
• speed of hardening;
• harmlessness to the environment, land;
• the minimum level of toxicity;
• resistance to the negative effects of ultraviolet rays;
• maximum elasticity.

Technological process:

• Cleaning the surface with an antiseptic liquid;
• spray liquid onto the coating;
• if necessary, we reinforce with geotextiles.

Penetrating material

The latest word on the engineering market, but also the most expensive. The basis of the material is cement and quartz sand. The application method is very similar to plaster. There are two types of material on sale: for spraying and for coating type. Due to this molecular structure, any external reagent such as water will repel and cannot perform the destructive effect.

The scope of application is wide enough, strip foundation or shallow, for the protection of food tanks, water structures, underground communications, etc. If a horizontal type of waterproofing is used, then the foundation with a high groundwater level (GWL) should overlap the protruding surface at least 30 - 35 cm from the ground.

Some features for waterproofing

Any type of waterproofing must be applied before the foundation is poured, at the latest. If for some reason you missed the opportunity to apply, then surface treatment after the construction of the structure will reduce the efficiency by 40 - 50%. The only thing that you can handle well is the base.

With regard to the use of the method, the most effective will be a combination of horizontal and vertical together. As practice shows, first one is applied first, and then the other.

• Initially, they isolate the foundation, clean it to the sole, dry it if necessary. It is strictly forbidden to use water for cleaning. From all the seams we clean the remnants of the soil, after which we apply glue or a special solution of cement to them. The final phase is sizing with bitumen;
• using a torch and a floating method, we glue roofing material. We press it tightly to the working surface, carefully process the joints;
• layers are fused in stages, one on top of the other with a mandatory overlay.

As you can see, there is nothing complicated when waterproofing a strip foundation. There is no need for special skills and abilities, the main thing is to follow the rules and recommendations described above. An important point: all corners must be rolled in a roll method, and not otherwise. It is strictly forbidden to cut them off to avoid damage. The final point in the work is the drainage system. Do I need to do waterproofing? Yes, yes. If the foundation is not dry enough or has residual moisture, then never rush to start pasting, as the effectiveness of such work will be reduced to zero.

The moisture penetrating into the basement and basement creates unfavorable conditions in the living quarters located on these floors. With capillary penetration into the body of a concrete monolith of a strip foundation, moisture in winter, freezing and expanding at the same time, contributes to the destruction of concrete. The humidity of the foundation also leads to corrosion of metal reinforcement, which also does not contribute to the strength and reliability of the building foundation. For the full and long-term functioning of the underground part of the structures, it is necessary, even when laying the foundation, to ensure its reliable protection from the destructive effects of moisture, underground groundwater and the effects of moisture penetrating from the upper layers of the soil.

Correctly executed waterproofing of the strip foundation is designed to protect it from moisture.

Types of foundation waterproofing

Waterproofing methods 2:

1. Horizontal is used when groundwater is deep enough and there is no direct contact of the foundation with it. Serves to cut off the capillary rise of moisture from the foundation tape to the foundation wall. Horizontal waterproofing also includes various types of water drainage from the building - the construction of a blind area and drainage.
2. The vertical one ensures the waterproofing of the strip foundation walls. Free-flow vertical waterproofing protects against seasonal rise of groundwater and atmospheric precipitation; capillary - from moisture ingress into the concrete monolith; anti-pressure is designed to resist the hydrostatic action of groundwater.

Depending on the method of execution, they are divided into:

• coating (mastic) - performed in the form of coating with hot and cold bitumen or polymer compositions;
• pasting - insulation with roll materials (geotextile, roofing felt, films);
• spraying - coating with a spray gun;
• impregnating - used in the processing of blocks and slabs with various compositions that penetrate the porous structure of concrete and give them the necessary waterproofing qualities.

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Waterproofing the strip foundation when laying

When waterproofing under a building, it is performed in several stages.
At the initial level, for the waterproofing layer, you need to make a cushion of sand-crushed stone or a layer of lean concrete.

1. A mixture of sand and crushed stone is poured into the bottom of the trench dug under the foundation, carefully rammed and leveled. The layer thickness can be up to 20-30 cm.
2. A concrete screed up to 5-8 cm thick is laid on the sand layer. After the screed has dried (up to 2 weeks), its surface is treated with bitumen mastic or molten bitumen and a layer of roofing material is laid, bitumen is again applied and then another layer of roofing material. After that, make another 5-8 cm of concrete screed.
3. After that, the foundation is erected, its surfaces are insulated using vertical types of waterproofing.

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Waterproofing the foundation after its construction

Vertical insulation is possible both at the stage of foundation construction and after completion of construction. The most common way is to completely process the entire foundation strip with molten bitumen or ready-made mastic purchased from a hardware store. Bitumen penetrates into the gaps of the concrete structure and, solidifying, creates a layer that protects the foundation from moisture penetration into the monolith body.

Vertical insulation can be done using roll materials or by spraying one- and two-component compounds such as Elastopaz or Elastomix, etc. materials from the category "liquid rubbers".

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Bituminous insulation

In order to make insulation with bitumen, you need:

1. Break a block of bitumen into smaller pieces and melt them in a refractory container (in a bucket above the fire) to a liquid state. It is possible to add a little used oil (automobile) to it when heating bitumen.
2. Hot bitumen can be easily applied to all foundation surfaces in several layers (2-4 is sufficient). Bitumen should not freeze in the container: when reheated, it loses some of its properties.

Among the disadvantages of bitumen can be noted fragility (5-10 years of operation) and low water resistance of bitumen insulation. When backfilling with soil, the insulation can be damaged.

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Roll materials

To protect the foundation of a building from moisture, first of all, it is necessary to make the so-called blind areas. Scheme of the device of blind areas: 1 - cement mortar; 2 - broken brick, tseben; 3 - clay; 4 - soil; 5 - gutter groove; 6 - foundation.

As a protection of the bituminous layer or as an independent type of waterproofing, you can make a glued insulation with roll materials glued to the surface of the foundation using mastic or bitumen:

1. Treat foundation surfaces with molten bitumen or mastic. Unlike the coating type of waterproofing, here it is not fundamentally a thorough application of the bitumen layer, since it serves as a layer that ensures the attachment of the roll material to the foundation.
2. Roofing material is heated by heating with a burner and applied to the hot layer of bitumen coating. The joints are overlapped by 10-15 cm and treated with a torch for joining. Instead of roofing material, modern materials are also used, deposited in several layers on the surface of the foundation. These are polymer films and polyester cloth with bitumen-polymer spraying such as Technoelast, Isoelast, etc.
3. If it is not possible to use the burner, special mastics with adhesive properties are used.

The durability of such waterproofing reaches 50 years. Waterproofing using roll materials is considered the most reliable today.

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Liquid rubber is a modern material

The composition is a dispersion of bitumen particles in water, modified with polymers. Among the advantages of modern material: no smell, non-flammability, non-toxicity. Liquid rubbers can be applied even to damp surfaces and have good adhesion to all substrates. After drying, a waterproofing membrane forms on the treated surface.

The disadvantage of the coating is the same as with bitumen mastic: the surface can be damaged when. Therefore, after applying the composition with a spray gun or manually, it is recommended to additionally fix geotextiles or other material (for example, expanded polystyrene for thermal insulation) on the foundation.

The application of a layer of liquid rubber requires preliminary priming with a special compound or diluted with water (1: 1) liquid rubber. After drying for 1 hour, 1-2 layers of liquid rubber are applied to the soil layer.

The strip foundation of your house should be “dressed” in waterproofing materials. Correct and reliable waterproofing of the strip foundations of your home is one of the primary tasks that you must definitely solve.

The belt is a reinforced concrete strip. It goes along all the outer dimensions of the structure and along the load-bearing internal walls.

From life experience, we know that in order to maintain our health with you, we put on warm clothes in cold weather, put on shoes, respectively, in wet weather. We go fishing and hunting in special wading boots so as not to get our feet wet and not get sick. But many would-be builders think that a built house, in particular its foundation, can be in a rather damp and cold environment - in the ground - without protection from this aggressive environment.

Therefore, so that the house you built:

• gladdened you and more than one generation of your descendants;
• was a “long-liver”, which is why you need to maintain the “health” of your home;
• did not cause hassle from frequent repairs, alterations, reconstructions due to illiterate construction and subsequent operation,

modern technology for isolation from groundwater is imperative.

We must deal with this important issue.

Strip foundations (diagram).

To create waterproofing that will serve you for many years, it is necessary to use high-quality, specially designed material with certain properties and characteristics.

The material used must be:

Modern materials possess these properties and differ only in the greater or lesser degree of their manifestation.

Good drainage

Light soils - sands and sandy loams - are able to easily pass the emerging moisture into the lower layers of the soil. Water does not stagnate near the erected foundation, and therefore waterproofing can be slightly lighter compared to waterproofing devices standing on heavy, heaving soils - clay, loam.

As a rule, on heaving soils, they arrange a drainage system for collecting and removing moisture from the concrete foundation. For this, special drainage membranes are used, which are placed under a monolithic slab on which the strip foundation stands.

Drainage system diagram.

Under the sole of the reinforced concrete tape of the foundation, carried out in a trench (a house without a basement) along all the external and internal load-bearing walls of the house, with a depth of the foundation soles 20-30 cm below the freezing point of the soil, a sand-gravel or sand-crushed stone cushion is required. Such drainage is able to drain moisture into the lower layers of the earth. The width of the bulk and tamped cushion should be 20 cm greater than the width of the strip foundation. The cushion prevents stagnation of water and entrainment by silt or clay when the groundwater level rises on the foundation surface and damage to the vertical waterproofing. A vertically installed drainage membrane helps to drain excess water from the building, does not allow it to put pressure on the waterproofing itself and look for weak points in it.

Horizontal and vertical insulation

Horizontal waterproofing device diagram

Horizontal waterproofing is carried out under a monolithic slab by laying a drainage membrane on a monolithic layer of lean concrete with a slope into the outlet pipeline, followed by the installation of a reinforced mesh and pouring a monolithic foundation slab onto which a strip foundation is assembled or poured around the perimeter of the house.

Horizontal waterproofing is also done to separate the top plane of the strip and the incipient wall. It is carried out by spraying a suitable material or laying roll-up waterproofing materials.

All vertical planes of the strip foundation from top to bottom are covered with modern materials specially designed for this.

Several types of waterproofing

Non-pressure waterproofing protects the strip foundation from external atmospheric precipitation penetrating into the ground, and from the spring and autumn temporary rise in the groundwater level.

For reliable anti-pressure waterproofing of the basement, it is better to apply three layers of sludge.

After completing the vertical waterproofing, the foundation is backfilled. The best result is achieved with layer-by-layer backfill with inert, highly water-conducting materials, such as quartz (river) sand with the least clay admixtures, gravel mass or earth. Filling with construction waste is undesirable, since it is after this operation that the integrity of the waterproofing of the strip foundation may be damaged. On the surface of the earth, around the entire perimeter of the building, a blind area 1 m wide is made of concrete or asphalt.

Anti-pressure insulation, in turn, protects the base of the house from contact with constant nearby groundwater in the area where the foundation is located. For such purposes, coating, spray, painting materials are used. After the application of such insulating materials, a continuous layer of insulation is formed without joints or seams with good repelling properties.

Capillary waterproofing prevents moisture droplets from entering the concrete monolith. It gives the best results when impregnating concrete with compounds both from the inside and from the outside of the foundation tape. The impregnating compounds penetrate several centimeters deep into the concrete, filling the smallest pores in the concrete, making the strip foundation practically airtight and able to withstand external moisture.

Junction diagram of horizontal and vertical waterproofing.

Sequence of work

Work to isolate the strip foundation from external influences of the environment must take place on a surface cleaned of dirt.

First of all, it is necessary to choose the method of application, and at the same time the insulating material itself.

Lubricating waterproofing is performed with mastic, bituminous compounds, liquid glass. In most cases it is used as a first layer of insulation and as a bonding layer for gluing roll materials.

After this layer, the foundation is covered with roofing material or other roll materials in two layers, gluing the layers onto the mastic. The joints are made with an overlap of 20 cm.

Waterproofing is also possible with the use of spraying with special compounds using a spray.

After performing any type of waterproofing, it is advisable to mount a special roll-formed profiled membrane, which will protect the waterproofing from damage and help drain excess water from the foundation. The membrane is also rolled out with an overlap at the joints of 15-20 cm.