Strip foundation insulation device. Waterproofing strip foundations. Do-it-yourself waterproofing of the bath foundation using roll materials

Moisture penetrating into the basement and basement creates unfavourable conditions in living quarters located on these floors. With capillary penetration into the body of a concrete monolith of a strip foundation, moisture in winter time, freezing and expanding at the same time, contributes to the destruction of concrete. Moisture in 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 to ensure it even when laying the foundation reliable protection from the destructive effects of moisture, underground groundwater and exposure to moisture penetrating from the topsoil.

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

Types of foundation waterproofing

Waterproofing methods 2:

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 includes different kinds drainage of water from the building - construction of a blind area and drainage.
The vertical one ensures the waterproofing of the strip foundation walls. Non-pressure 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 - spray coating;
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, it is necessary to make a cushion of sand-gravel mixture or a layer of lean concrete.

At the bottom of the trench dug under the foundation, a mixture of sand and gravel is poured, carefully rammed and leveled. The layer thickness can be up to 20-30 cm.
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.
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 the completion of construction. The most common method is to completely process the entire foundation strip with molten bitumen or ready-made mastic purchased from 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 body of the monolith.

Vertical insulation can also be done with 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:

Break a block of bitumen into smaller pieces and melt them in a refractory container (in a bucket above the fire) until liquid state... When warming up bitumen, you can add a little used oil (automobile) to it.
Hot bitumen can be easily applied to all surfaces of the foundation in several layers (2-4 is sufficient). Bitumen should not solidify 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 the building from moisture, first of all, it is necessary to make the so-called blind areas. cement mortar; 2 - broken brick, tseben; 3 - clay; 4 - soil; 5 - gutter groove; 6 - foundation.

How to protect the bitumen layer or how independent view waterproofing, you can make glued insulation with roll materials glued to the surface of the foundation using mastic or bitumen:

Treat foundation surfaces with molten bitumen or mastic. Unlike coating type 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.
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.
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 polymer-modified dispersion of bitumen particles in water. Among the merits modern material: odorless, non-flammable, non-toxic. Liquid rubbers can be applied even to damp surfaces and have good adhesion to all substrates. After drying, it forms waterproofing membrane on the treated surface.

The disadvantage of the coating is the same as with bituminous 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.

Applying 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.

Kirill Sysoev

Callous hands do not know boredom!

Content

Groundwater, moisture, weather dampness - all this poses a natural threat to a building if its base is not reliably protected from water. So that concrete and other materials in the structure of the foundation do not suffer from moisture, creating an atmosphere of dampness in the lower rooms, a number of works must be carried out during construction, the main of which is waterproofing the foundation. What materials, technologies are better suited for this and is it possible to cope with the process on your own - find the answers below.

What is foundation waterproofing

Any waterproofing is a series of works aimed at warming, protecting the foundation from influence, moisture penetration, and reducing the natural absorbency of concrete. This procedure is especially relevant if the house is on wet soil or has a basement, garage, ground floor. Exists different ways than to process the base from moisture:

bitumen, bituminous mastics are widespread;
then cement-polymer compositions follow;
apply liquid rubber and self-adhesive roll materials.

What is it for

Concrete is the main component of any foundation, it has a porous, pliable structure, so liquid from the atmosphere and soil always seeps into it, destroying the integrity of the structure, creating and increasing microcracks. Ultimately, this will help lead to such serious consequences as partial destruction, rotting, crumbling of the house at the base.

Protection from water is necessary for every building in order to increase the period of its safe, guaranteed operation, to protect the house from dampness and its unpleasant components - fungus, mold. Modern waterproofing allows you to eliminate all these dangers with the help of functional, affordable building materials and simple technology.

Horizontal waterproofing

Depending on the characteristics of the material and terrain, use horizontal or vertical view procedures. The horizontal one provides good protection of ceilings, walls, basements, terraces and balconies from capillary waters, it fits along the edge of the base, just above the blind area. For implementation, a roll or impregnation method is used. Horizontal waterproofing of the foundation is carried out at the beginning of construction, before the construction of the walls.

Vertical waterproofing

Use for this better lungs bituminous mixtures that insulate buildings and do not weigh down its structure. Vertical waterproofing is necessary to protect side walls, frame, nodes doorways, underground premises, from penetration surface waters... As this part of the building is often exposed to external factors, you need to apply an additional layer on top of the main protective one.

Roll

Gluing waterproofing of the foundation is made with the help of materials such as roofing material, glass insulation, glassine, which are glued in several layers using mastic or special glue. Other methods are film diffusion membranes, which have high vapor conductivity and protect well interior buildings, or bitumen, polymer rolls, attached by a hot, floating method (for better connection with a surface).

You should calculate the amount in advance necessary material for horizontal protection against groundwater: future protective layer should be about 3 mm if the sole of the base is at least 3 meters. The thickness and quantity of coatings depend on the quality and strength of the material; the recommended standards are often indicated on the packaging.

Coating

Bituminous insulation is used when soil moisture is low, when the groundwater is at least 2 meters below the basement level. It protects well against capillary moisture, it is applied in 3-4 layers by hand or using a mechanical spray. Material - bitumen, bitumen-polymer mixtures and rubber mastics, additional coatings with a base, varnish, paint. Commercially available are cold, soft, ready-to-use, or hot, hard, which must be preheated.

How to make waterproofing

Masters recommend laying horizontal waterproofing layers before erecting the main support structure: clay is poured at the bottom of the pit, covered with a concrete screed, then two layers of bitumen and roofing felt and one more screed. If the soil has a tendency to store water, it may be necessary to build a drainage system to better protection... Foundation waterproofing takes place in several stages:

preparation of a trench with a width of at least 1 meter, in depth - 0.5 meters below the foot of the base;
grouting the outer layer for better adhesion to moisture-proof coatings;
primer using the selected technology.

Waterproofing strip foundation

The belt structure is one of the most reliable, since the layers of reinforced concrete fit tightly to each other, practically without seams. It is influenced by groundwater, capillary and sedimentary waters, and you can choose a gravity, counter-pressure or capillary (most effective) method. All of them will well protect the building from melt water, rain, minor floods, penetration of soil moisture. When waterproofing a strip foundation, it is important to take into account the degree of swelling of the soil during freezing, the characteristics of the soil, the amount of precipitation.

Column foundation waterproofing

Column foundation - good decision for small, light structures, or to save money on large-scale buildings. To protect such a structure from moisture, use different technologies, depending on the surface material:

monolithic concrete plates need to be coated with bituminous mastics;
blocks - with liquid mastics or pasted over with roll materials;
for brick foundation better fit pasting in rolls.

Before waterproofing columnar foundation must be thoroughly cleaned, leveled work surface, process it with mastic and two layers of anchoring roofing material; for complete protection, the outer side of the foundation can be covered with the same layer 30 cm above ground level. This will help preserve the integrity and strength of the material, and increase the life of the building.

What waterproofing to choose for the foundation

The types of waterproofing foundations differ in the type of materials used, the method of application and the effect on the surface. Prices vary, so you need to choose the right method correctly, taking into account the purpose of the building, soil characteristics and available finances. It is important to bear in mind that not all types can be performed independently, for some you need special equipment and the help of other people. What ways are there:

Coating. Cheap option, suitable for small, shallow buildings: sheds, garages, outbuildings. For better protection and insulation, you can cover the top with geotextiles or install drainage.
Rolled. Hot bitumen mastic and several layers of roofing material are used, a reliable and durable method.
Plastering. It helps well with the threat of capillary water. Required cement-containing mixtures (hydro-concrete, asphalt concrete), they must be applied hot, just like ordinary plaster, in several layers.
Sprayed on. With the help of a special construction spray, without pretreating the walls. It is recommended to lay a reinforced layer on top of the spraying to consolidate the insulating effect. Materials - polyurethane foam, liquid rubber.
Penetrating. Penetrates deeply into the material, fills all cracks and cavities, protects well against capillary water and moisture. Expensive, high quality and effective method.
Screen. It is used under strong influence of groundwater, it is an interlayer of oily clay, geotextile or a brick wall.

How to choose waterproofing

When choosing a way to protect a house from moisture, you need to carefully study all the features of the structure and the area in which it is located (weather, soil, proximity to water bodies). Waterproofing materials for foundations should be chosen based on the estimate, not to save on quantity and quality, so that you do not have to dismantle the structures and repair the base in a couple of years.

For a tape structure, it is better to choose bituminous or polymer compositions; penetrating or plastering coating.
For columnar and pile-screw bases, different methods are suitable depending on the required degree of protection, but it is recommended to cover them with an anti-corrosion agent on top.
It is good to combine vertical and horizontal protection, but if the opportunity for horizontal protection was missed, then it is better to use the roll method or spraying with liquid rubber.
It is better to determine the method of waterproofing at the very beginning of construction in order to take this into account when laying and pouring the base.
A combination of several methods can have a good effect.

Waterproofing price

The cost of waterproofing a certain type of foundation includes all basic, additional materials (glue, primer, roofing material), construction work (digging a trench, ditch), and the services of craftsmen, if you use their help. You can buy everything you need in an online store with delivery, in a supermarket, or order a service on any website of a construction company or private specialists. Buying a “turnkey” waterproofing house can cost 600 rubles per m2, the prices of materials are very different, depending on the composition and manufacturer.

Cost of work per m2

You can buy waterproofing for the foundation at any construction company, this procedure is often included in general price works. You can order it separately from specialists, with a complete diagnosis of the site and possible threats. Plastering and coating waterproofing are cheap, the most expensive price is for penetrating, sprayed procedures. Approximate prices for moisture protective work bases in Moscow and the region are shown in the table:

Materials (edit)

To protect the base of the house from moisture on your own, or to control the cost of services, you need to focus on the prices of materials. In large cities (Moscow, St. Petersburg), all possible tools, mastics, roll, sprayed coatings are on sale. Additional mixtures will be needed to process the finished waterproofing layer. Buying material for waterproofing the foundation, you can save money if you follow the promotions, sales in stores: often the right product can be bought at a profit at a discount. Look at the average prices in Moscow in the table:

Do-it-yourself foundation waterproofing

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

The belt is a reinforced concrete strip. It runs along all external 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 preserve the “health” of your home;
did not cause hassle from frequent repairs, alterations, reconstructions due to illiterate construction and subsequent operation,

we definitely need modern technology for isolation from groundwater.

We must deal with this important issue.

Strip foundations (diagram).

To create waterproofing that will last you long 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 the waterproofing can be slightly lighter compared to the waterproofing device standing on heavy, heaving soils - clay, loam.

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

Drainage system diagram.

Under the sole of a reinforced concrete foundation strip, carried out in a trench (a house without a basement) along all external and internal load-bearing walls at home, 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 capable of transporting moisture to 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. The 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 performed 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 installation 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 hydro insulating 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 backfilling with inert, highly water-conducting materials, such as quartz (river) sand with the least clay admixtures, gravel mass or earth. Backfill construction waste undesirable, since it is after this operation that damage to the integrity of the waterproofing of the strip foundation is possible. 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, spraying, painting materials are used. After application of such insulating materials, a continuous layer of insulation without joints or seams is formed with good repelling properties.

Capillary waterproofing prevents moisture droplets from entering the concrete monolith. top scores it gives when impregnating concrete with compositions both with internal and outside foundation tape. Impregnating compounds penetrate a few 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 the 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 by spraying with special compounds using a spray gun.

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 facilitate drainage excess water from the foundation. The membrane is also rolled out with an overlap at the joints of 15-20 cm.

Waterproofing the strip foundation prevents Negative influence moisture on the supporting parts of the house. Since the cement base has a high capillarity, the penetration of moisture into the interior will lead to oxidation of the reinforcement, which is fraught with distortions and shrinkage of the entire structure. In the article, we will consider the device of the strip foundation, as well as methods of waterproofing its main parts.

What is a strip foundation?

The device of the strip base is rather complicated, since the structure is a closed concrete contour located on a sand and gravel cushion. To strengthen the base, a reinforcing mesh is used, which consists of metal rods. The structure can be located directly on the ground or on piles, which take on the static load created by the building.

For what purposes is the waterproofing of the strip foundation done by hand? It should be borne in mind that the strength of the concrete base during operation will be destructively affected by sedimentary, ground and capillary waters. To prevent damage to building materials, it is necessary to implement a number of measures to drain water from the building. These include:

drainage system device;
laying a waterproofing pad;
hydraulic protection of the bearing parts of the structure (support piles, basement, formwork).

The main types of waterproofing

After installing the strip base, it is important to take care of "cutting off" moisture from the structure. To do this, use various waterproofing materials, namely:

Coating - insulation is carried out using polymer or bituminous compounds that prevent moisture from penetrating into the foundation;
Roll - materials with good water-repellent properties are suitable for finishing the basement, pile-strip base (bearing supports), as well as waterproofing the foundation for a monolithic slab. The most popular among roll moisture insulators are roofing material, polyethylene film, geotextile;
Sprayable - waterproofing agents are applied to concrete structures using spray guns. As a spray mixture, liquid solutions based on bitumen and polymer additives are used;
Impregnating - mixtures of liquid consistency that easily penetrate into the structure concrete pavement filling all the pores. Thus, it is possible to prevent the ingress of moisture into the foundation and the destruction of the reinforcing mesh.

Horizontal water protection

Horizontal moisture insulation is a complex of construction work that prevents moisture penetration into concrete structures from underground. Waterproofing of this type is needed in the case of arranging any type of base:

tape;
monolithic;
pile;
pile and tape.

How is horizontal insulation done? To ensure reliable protection of the structure from negative impact groundwater, a nominal horizontal water protection is used. It literally "cuts off" moisture, which, due to the capillarity of the soil, rises to the concrete structures. For the high-quality implementation of work, you must do the following:

Take care of laying a waterproofing pad made of sand and gravel. The layer thickness must be at least 25 cm;
Do concrete screed with a thickness of about 10 cm, then postpone the work until the cement has completely solidified (at least 12 days);
Then a calculation is made to dilute the required amount of bituminous mastic, with which you need to process the concrete tape;
After that, the base is covered with roofing material in several layers;
Next, the installation of the formwork is carried out to fill the second layer of the screed;
At the final stage, it is planned to insulate the floor and lay the topcoat.

To understand how horizontal water protection is done concrete structures, you can watch a video clip, which describes the sequence of performing all the necessary work.

Vertical water protection

Vertical isolation of a structure from moisture involves the processing of exclusively vertical parts of the structure, in particular, the basement, piles, etc. This procedure is recommended if there is a basement in the house. Thus, it is possible to prevent excess moisture from entering the underground room, from where it can penetrate into floor base the first floor of the building.

How is the vertical waterproofing of concrete structures done? In this case, to ensure water-repellent properties foundation, you can use various processing methods:

plastering;
pasting with roll insulators;
spraying with bituminous compounds.

But before making a calculation of the materials required for insulation, it is worth choosing the best option for waterproofing. Experts recommend using two methods of waterproofing at once: coating and pasting. How to do it? If there is a filed in the building, the progress will be as follows:

First of all, the working surface must be coated with bituminous mastic;
After that, paste over the basement floor for the basement with technoelast (a kind of roofing material);
When calculating roll materials, please note that they must overlap with a margin of at least 15 cm;
To seal the seams, melt them with a gas torch, causing adjacent sheets to stick together.

The device and nuances of processing a strip foundation with vertical waterproofing are shown in the video material.

Features of insulation of the foundation and basement with roofing material

Waterproofing of a monolithic foundation is most often done with roofing material. It can be used both independently and in combination with bituminous solutions. When covering a concrete structure with roofing material, several important rules must be observed:

Moisture insulation under the slab begins with the application of a bituminous solution;
The calculation of the amount of roofing material is needed taking into account an overlap of 15 cm;
After that with the help gas burner the insulator softens and fits on the working elements of the structure;
When carrying out waterproofing work to finish the foundation under a monolithic slab, you can use special mastics to seal the seams.

Moisture insulation of the structure with roofing material should be carried out using only quality materials... Ezoelast and tezchnoelast insulators are considered optimal for protecting the concrete base. The process of laying materials is clearly demonstrated in the video clip.

Moisture insulation of the pile-strip base

How to make insulation correctly in case of arranging a pile-strip foundation? Lack of lodging suggests additional processing not basement floor structures, and the bearing parts themselves are concrete - piles. It is they who take the maximum static load created by the weight of the structure itself.

What is the purpose of protecting the pillars? Under the influence of moisture, the supports begin to collapse over time due to corrosive processes occurring in the reinforcement of the pillars. To prevent skewing and subsidence of the base, additional waterproofing of the bearing parts is required. How to protect a strip pile foundation without a basement?

Bored piles. Bored supports are concrete pillars, reinforced metal fittings... As a rule, they are installed in casing pipes, which do not provide the proper level of protection against moisture. In the process of erecting the structure, it is advisable to insert roofing material into the wells for the racks, which will play the role of formwork and waterproofing;
Screw piles. The elements of the concrete structure are represented by steel screws that are screwed into the ground. To protect them from corrosion, the spiral legs of the piles are treated with hydrophobic anti-corrosion solutions;
Driven piles. Supports in this case are represented by reinforced concrete or wooden posts... To protect them, you need antiseptic and anti-corrosion treatment. Special impregnation and coating with bitumen will not be superfluous.

Does a sand cushion need moisture protection?

What are the functions of a sand bed cushion? Sand and gravel mound, which is often done during the paving process tape bases, performs two tasks at once:

Cuts off water from the structure;
Promotes even load distribution.

Laying the pillow is a must when building a basement in your home. As a rule, it is in this room that it is quite damp, which creates all the conditions for the accumulation of condensate under the floor and the growth of fungus. Is waterproofing of the pillow necessary in this case?

If the building itself is installed on a ground with strong heaving, during the laying process sand pillow need to make a calculation the right amount waterproofing agent. It is laid on a layer of sand and gravel, which violates the capillarity and the flow of moisture from the ground into the concrete structure.

Formwork moisture insulation

To answer the question of whether a formwork needs water protection or not, consider its main functions. The design is designed to limit the space into which it will be poured concrete mortar to form the foundation. In other words, main function formwork - the design of a liquid solution, which, when solidified, forms the required geometric shape.

For the assembly of formwork, as a rule, they use wooden boards which are hygroscopic. Because of this, structural elements can deform, which will lead to distortion of the geometric shapes of the poured concrete base. In this case, the answer to the above question becomes obvious: water protection for the formwork is really necessary.

What types of insulators are used for finishing the formwork? For guard wooden elements formwork can be used:

bituminous solutions;
hydrophobic impregnation;
water-repellent varnishes;
roll insulators.

When calculating the amount of waterproofers consumed, it is worth noting that for processing the formwork, painting with bitumen will be the most budgetary option.

Is insulation necessary for the strip foundation?

Why are concrete structures insulated? There are three main reasons why it is necessary to insulate tape bases.

There is an opinion that concrete is a material that is able to withstand any conditions, including weather, and is able to serve for many years without undergoing any changes. However, in reality this is far from the case. Of course, concrete is one of the strongest and most durable materials. However, in order to concrete foundation served as long as possible, it must be protected, and primarily from moisture, since it has a destructive effect.

If you do not provide for waterproofing for the foundation, after a while the basement will simply collapse, which will lead to a change, destruction of the entire building. In addition, groundwater can cause great damage to the base of the house. Waterproofing - important point when arranging the foundation, in no case should you forget about it, and you can even carry out work on the insulation of concrete with your own hands. You can also find videos on the Internet on how to do this kind of work.

Waterproofing using lubricants

Do-it-yourself waterproofing of the strip foundation using plastering is one of the most simple ways protect the base from moisture. The technique of this type of waterproofing works on the principle of applying paint. You just need to purchase the material, and then use a brush to cover the entire surface of the foundation with plaster. To provide waterproofing in this case, liquid glass, various bituminous mastics and much more can be used.

The use of a compound for waterproofing strip foundations has its advantages:

Low cost of substances, and the very work to ensure protection.
Good elasticity of the substance, which is ensured by its consistency.
The absence of any joints and seams.
High degree of hydrophobicity after concrete coating.
Ease of performing waterproofing works. Coating concrete with a wash does not involve the use of any sophisticated tools or techniques, nor does it require special skills.
High degree of adhesion to the foundation surface.

In addition to the listed qualities, the coating also has some disadvantages. First, it is fragility. The shelf life of such a substance is on average about six years. After this time, the mastic or other substance becomes inelastic and brittle, and, accordingly, unable to provide adequate protection. As a result, the homeowner will have to make repairs and re-works. waterproofing works... You should pay attention to this when choosing a waterproofing method. When cracks appear on the mastic or liquid glass after the expiration of time, it is necessary to take measures to carry out repeated work as soon as possible, since moisture can penetrate through the cracks to the concrete and provoke the process of its destruction.

Considering the fact that coating options differ in their cheapness, waterproofing can be done every 7-8 years without spending a large number money. However, if this option does not suit you, you can select substances with the addition of polymers, rubber or latex. Such compounds last much longer and are more resistant to external influences.

Concrete coating technology

It is not difficult to make waterproofing of the strip foundation with your own hands.

First, it is necessary to thoroughly clean the concrete tapes from dirt, dust and various foreign objects.
Then you need to apply a special primer deep penetration... This is necessary for better adhesion of the compound to the foundation surface.
After the primer dries well, you can start applying the waterproofing agent. This should be done with a special paint brush. The coating should be applied in such a way that no gaps or empty areas remain on the surface. Additionally, you can watch a video on how to properly waterproof a strip foundation.

Waterproofing with roll materials

Inexpensive waterproofing of strip foundations can be done using roll materials. The brightest and most frequently used representative of this group is roofing felt. Also, sometimes aquaizol and isoplast rolls are used for such purposes.

Roll materials are generally quite widely used in the construction of houses and other structures. Moreover, they are used not only to protect the foundation, but also for roofing works, pool equipment, implementation road surface and much more. This material is able not only to protect from external influences of water and moisture, for example, in adverse weather conditions, but also from underwater groundwater with a strong pressure.

The roll materials from which the waterproofing is made are divided into several types:

Oleechnye. Such materials are attached to the surface of the base using special adhesives, for example, bitumen mastic, or using a special adhesive layer provided. The second option is more convenient and does not take much time to complete the work.
Floating. This kind of materials is convenient and interesting in that a previously prepared layer from a roll is heated with a burner, and then applied to the surface of the foundation. Under influence high temperatures the material becomes sticky and adheres well to the substrate.

Roll materials also have some advantages:

Easy to use and install.
Durability.
The ability to repel moisture.
High strength of materials.
Reliability of protection from external influences.

Roll materials have practically no flaws, and therefore are used in the most different purposes during construction.

Coating technology with roll materials

To make the waterproofing of the strip foundation with roll materials, it is necessary to perform a simple sequence of actions that everyone can do:

Prepare the surface of the base, level it, clean it from dirt and dust, remove excess inclusions and foreign particles.
To apply bituminous mastic with a paint brush. In cases where rolls with self-adhesive material or overlap, this stage skipped.
On a clean and flat surface, previously prepared, is applied roofing material or any other roll material.
It is important when fixing the material to the surface, it is imperative to overlap the layers at the joints. The overlap must be at least 15 centimeters wide. In order for the roofing material to be securely fastened in this place, it must be soldered using a gas burner.

The process of applying the material to the surface does not take much time. In more detail, the procedure for installing roofing material or other roll material can be viewed in the video.

Waterproofing using sprayed material

Waterproofing by sprayed materials is considered the most modern technology... Its main advantage is that it meets all the necessary requirements and clearly performs all tasks. In addition, such a material can be used not only to provide foundation protection for the first time, but also to repair old insulation. Today builders also use spray-on waterproofing materials for roofing work.

The main advantages of spraying include:

Long service life.
Ease of performing work on the application of the material.
The absence of any seams and joints.
Fast drying and hardening.
It does not have toxic properties and does not cause any harm to health.
UV resistant.
Elastic.

The disadvantages of sprayed materials include only enough high cost works, as well as the need for the implementation of the coating to attract special equipment.

The technology of applying the material assumes preparatory work, and then spraying the substance using a special device. Geotexing is also applied for fixing. A video on how the spraying procedure is performed can also be seen on the net.

Features of waterproofing the base

When applying waterproofing material, you need to remember some features. First, do not forget that the earth contains moisture, as well as many other substances that lead to destruction. Therefore, it is important to provide protection from lands located near the base. It is necessary to apply materials, especially coating materials, in different directions, horizontally and vertically.

If you are still thinking whether waterproofing is needed, whether it is necessary to do protective work, you should think about the fact that, due to the destruction of the base, the building will gradually begin to tilt, which means that the walls and other parts of the structure will begin to collapse. In this case, repairs will be quite expensive, so it is better to prevent the occurrence of such difficulties.