Deformation joint in underground structures. HydroStroy services for waterproofing underground structures
The SD website department advises and carries out work on moisture protection, incl. underground structures according to the technology of cold seamless waterproofing with liquid rubber.
Most damage in underground structures is caused by moisture. Where it's wet, concrete leaches, wood rots, steel corrodes, varnish dissolves, paint peels off, wallpaper falls off. If the water contains harmful substances (and in modern realities this is exactly the case in cities and rural areas), then the destructive effect of water is enhanced. This is aggressive water.
In the first case, construction participants could only check the quality of the supplied material, the quality of the construction readiness for insulation work and the quality of the insulation work itself. But only quality in terms of respect for the usual principles of craftsmanship and respect for climatic conditions. In addition, they can control the protection of the waterproofing from subsequent damage, only in visible areas of the waterproofing and under the enormous stress of the inspectors. However, none of the listed control procedures is designed to test for leakage.
Waterproofing of underground structures is a set of measures, as a result of which contact of structures with moisture is excluded, which appears in a finely distributed form in building materials or ground.
By the way, the quality of waterproofing of underground structures also affects thermal insulation. It should be remembered that water conducts heat 25 times better than air, so the thermal insulation of wet building structures will be significantly reduced. In other words, if water entered the basement in autumn, then in winter it will be colder in such a basement than in the one that remained dry.
This is on the way to the desired "100%" waterproof hell. In the latter case, the leak was directly checked, although without the location of the fault. But the second case is really exceptional. A breeze test to test the tightness of a basement waterproofing is unusual, especially since there are no suitable conditions. That is why we are looking for coating solutions whose tightness can be checked during the construction phases, when commissioning can still be efficiently organized. An example of such a coating solution has a number.
In other words, he liaises between the contractor and the designer with the investor so that the investor correctly perceives the relationship between "music" and his money. The Directive therefore includes, inter alia, in point 3 of Principle 4: underground impermeability cannot be guaranteed below the surface ground water or in impervious soils.
The need for underground waterproofing
Water and moisture can get into the structure, both from the outside and from the inside. But in relation to underground waterproofing, we are talking about moisture protection from the outside.
External water enters both from above and from below. The water above is precipitation and melt water. It comes in the form of surface water "top water" and splash water. Water from below is seeping water, water in soil layers, water accumulating in soil lenses, as well as groundwater. And all this has a negative impact if the waterproofing of underground structures has not been completed.
The space between the perimeter of the protected area and the perimeter of the building must be through, accessible for the equipment necessary to seal the perimeter of the building. Similar information is received by the user of the directive even when trying to use the table.
The directive allows builders to understand that different waterproofing structures in different water stress classes have different reliability. In conditions high blood pressure double the amount will not be enough to achieve the "100%" effect. And what does "100%" mean, we learn from statics. No investor has a problem with paying rebar for a concrete structure, so that 40% more than is usually considered reliable enough. And this is not 100%, but only at an acceptable risk.
Consider what underground structures, from what water, in what cases can be damaged. The table below shows what problems underground waterproofing prevents.
| Type of building structure // Type of water | In what situations | What damage | |
| Walls in contact with the ground and basement floor slabs above the water table. // Capillary water, bound water, seepage water. | Highly permeable soil | Ground moisture and non-accumulating seepage water | |
| Poorly permeable soil | with drainage | ||
| Without drainage | Accumulating seepage water | ||
| Walls in contact with the ground, floor slabs and ceilings below the groundwater level. // Groundwater. | Any kind of soils, buildings and construction methods | Pressurized water outside | |
For greater clarity, which water and which parts of underground structures are affected, below is a figure that explains the need for a device underground waterproofing.
He is a member of the Committee of the Czech waterproofing company. Supply and implementation: roof systems, roofs; insulation, asphalt strips, waterproofing; waterworks; thermal insulation; assembly steel structures, building cladding; plumbing and construction.
Complex solution of the building shell: insulation of buildings, reconstruction of loggias and balconies, replacement of windows; roof reconstruction; bottom structure insulation, flat roof insulation. Import of waterproofing films for roofs, underground structures, swimming pools, reservoirs, landfills, reservoirs, etc.
Impact of water on underground structures
The drawing explains the need for underground waterproofing, without which the structure will not stand for a long time. Moreover, it can be seen from the figure that water affects underground structures both from below and from the side. Especially about the "bottom" many forget or do not think.
The building is affected not only by groundwater, but also by seeping water, and accumulating, and bound and water in the soil layers. Moreover, the impact on the walls of the foundation, again, is possible not only from the side, from the side of the walls, but also from below, from the base of the walls.
Installation of photovoltaic power plants, installation solar heating water and heating, installation of heat pumps and water filtration, waterproofing of flat roofs and foundations, electrical work. Association of Entrepreneurs - waterproofing, insulation of straight and sloping roofs, complex equipment of swimming pools, swimming pool welding, pond insulation.
Supply and installation of hard roofs, wooden roof trusses, thermal insulation of roof tiles, attics, sanitary facilities, waterproofing of tile foil, lightning rods. Construction work - painting, repair and replacement of old roofs, roof construction, water and moisture insulation, thermal and acoustic insulation, roofing, plumbing and masonry.
The highest groundwater level should be below the base of the foundation. This condition must be met in order to minimize the impact of groundwater on the underground part of the building. The distance between the base of the foundation and the upper groundwater level should not be less than 0.3 m.
The soil around the building can be different in structure, and therefore in drainage properties. So, under the top layer of soil there is a layer through which water quickly seeps. This, for example, sand, which has good drainage properties and perfectly passes water. But then there is a change in soil layers and the soil is already weakly permeable to water. For example, these are clay soils. Accordingly, water already seeps more slowly, therefore water accumulates in the soil layers, moisture appears bound in the soil. And all these waters affect the foundation. Moreover, these are "flowers", real "berries" will be in winter if it turns out that the poorly permeable soil is within the freezing depth.
Capital repairs of flat roofs; thermal insulation, radon insulation; green roofs; paints; aprons. Plastics - production of floors, pools, reservoirs, terraces and roofs; insulation of flat roofs, ponds, waterproofing of swimming pools, load-bearing insulating strips.
Business activity; construction activity. Flat roof waterproofing, flat roof insulation, redevelopment concrete structures, waterproofing of terraces, reservoirs; wholesale trade insulating materials. Construction and reconstruction of buildings; execution of concrete structures, tanks, prefabricated tanks, etc.; coatings incl. blasting and metallization; roof waterproofing.
This "nuisance" comes as an additional "bonus" to the destruction of underground walls due to water entering them and due to the forces of frost heaving. About why the soil "moves" when freezing and how water in the capillaries of concrete destroys the cement stone, you can read in the article on.
Accumulating underground and seeping water occurs if the outer walls of the underground part of the building are buried more than 3 m below ground level. At the same time, the soil on the site and the backfill soil are poorly permeable soil, i.e. clayey. Under such conditions, a drainage device is required, either wall or trench throughout the entire area.
Emperor Jaroslav Cisar - Isolation of Strakonice
Foreign trade: asphalt materials for earthworks and construction works, complete roofing systems for new buildings and asphalt redevelopment; free consultation. Waterproofing of substructures and roofs, not only panel, apartment buildings, halls and other large buildings; bottom insulation and roof insulation of houses, terraces, garages and minor repairs after strong winds, storms or old roofs; waterproofing of new buildings and reconstruction of flat roofs with a slope of up to 10% with the possibility of thermal insulation; isolation of lower structures from moisture, aggressive water under pressure and radon isolation; insulation of cargo and green roofs; insulation of swimming pools, garden ponds, reservoirs, reservoirs and landfills; insulation protection. coatings.
Types of waterproofing of underground structures
To protect against water, it is necessary to perform waterproofing of underground structures. The following figure clearly shows what and how and from what water should be protected in the underground part of the building.
Czech-Swedish company: application of protective coatings; air purification when working with asbestos; waterproofing of flat and sloping roofs. Realization of insulation of bridges, substructures, roofs and marketing of insulating materials and gas; plumbing. Roofs - insulation - plumbing - drainage systems - waterproofing - facades - swimming pools; insulation and thermal insulation of flat roofs of prefabricated houses, incl. plumbing elements on roofs, gutters and drains; terrace insulation, roof gardens, double layer insulation of lower structures; isolation of dumps, reservoirs and reservoirs, allocation of containers for drinking water; drainage systems; isolation from moisture and moisture; study of the causes of moisture and their subsequent removal.
The figure shows various underground waterproofing, which is convenient and reliable to perform with liquid rubber, if.
outdoor and internal walls the first floor must be protected from below from rising capillary moisture. For this, horizontal waterproofing of the walls is performed.
If underground part the building is built in poorly permeable soil, a drainage device is required to divert seeping water.
Construction of water areas, ponds, pools, waste tanks or water tanks, supply of insulation boards for building purposes - foundations, pools, ponds, flat roofs, terraces, balconies, etc. Comprehensive implementation of insulation roofing, isolation of the bottom from radon and pressurized water.
Construction company: special insulation; redevelopment of concrete structures, spraying of laminates, waterproofing of polygons, flat roofs; land, water, transport. Repair of flat roofs with asphalt slabs, waterproofing coatings, repairs and all coatings of galvanized flat roofs; roof insulation; drywall.
For example, the figure shows a horizontal basement waterproofing, on top of which is a leveling screed. Those. waterproofing layer between the basement floor and the foundation slab. This is possible for relatively small buildings, without a layer of "lean concrete" under the slab. For example, it is now becoming fashionable to use profiled membranes instead of lean concrete.
Horak, Dalibor Horak Brno-Venkov
Supply of complete roof waterproofing systems, incl. consulting and technical support; supplies of special acid-resistant insulation for industry and Agriculture; roof lighting systems; flat roof remodeling. Construction and craft company: facade reconstruction, plastering, thermal facades, turnkey roofs; plumbing, roofing, coating and scaffolding; rental of scaffolding.
Construction activities: thermal insulation of buildings, thermal facades, facades; roof waterproofing, incl. insulation, waterproofing of underground structures; reconstruction of balconies; project activity; engineering activities of the investor; an accredited grant program firm to receive a grant.
If the lifting structure is massive and deep, then it is "quieter" to make the base of the slab from "lean concrete". And then put waterproofing between the base of the foundation slab and the slab itself. In this case, waterproofing the basement floor is no longer required.
In any case, if you correctly perform the horizontal waterproofing of the basement floor or the base of the foundation slab and bring it outside, beyond the line of walls, then the problem of horizontal waterproofing of the basement walls will also be solved. Why?
Hradec Kralove
The largest Czech manufacturer and exporter of bituminous boards; production: asphalt waterproofing strips and cardboard, asphalt shingles, paraffin wrapping paper, continuous plastic butyl rubber cements. Specialization in covering all technologies, sanitary ware, polyurethane foam - waterproof and thermal insulation, waterproof insulation of flat roofs.
Sale of accessories for waterproofing flat roofs, sewer elements, height-adjustable gaskets and floor systems, sale of terrace boards. Waterproofing: flat roofs, substructures, industrial building, silo deflections, manure, oil products, radon, landfills, pools, ponds.
Because in this case, the subsequent vertical waterproofing of the foundation is hermetically joined to the horizontal waterproofing, forming a seamless rubber "bag", inside which the underground structure is located. This is the best and most reliable underground waterproofing. Read about why liquid rubber guarantees the tightness of the junction of vertical and horizontal waterproofing for an underground structure, you can on the page.
Litomerice
Design and construction works- waterproofing and thermal insulation for flat roofs, photovoltaic roofs, ground insulation, landfills, swimming pools, ponds.
Prague West
Insulation of flat roofs, balconies and terraces; garden ponds, ponds and pools using waterproofing systems; delivery incl. material, above-standard warranty period.Isolation of Pavel Svoboda Brno-Venkov
Implementing company: waterproofing of flat roofs, waterproofing against moisture, radon; flat roof remodeling. Production, sale and application of waterproofing materials for flat roofs; special coating systems for the protection of durable steel structures, in particular corrosion interference.
This section of the website is dedicated to underground waterproofing. If you are interested, for example, in how liquid rubber is applied to the roof, then go to the section.
For all questions of waterproofing underground structures, if you need advice or perform underground waterproofing, please contact the Department of SD website.
Activity: waterproofing tapes, roof systems, incl. thermal insulation; waterproof and anti-radon insulation; plumbing and roofing. Completion, distribution and implementation of the proton waterproofing system; application - roofs protected by backfill, open with backfill, terraces and balconies, roof repairs.
Sales, consulting and implementation of the implementation of insulation; other building insulation, waterproofing. Deliveries and projects of waterproofing systems; roofs, roofs with grass; lower structures; building foundations; polygons; agricultural buildings; isolation from oil products; insulation work; sale of waterproofing; consultation.
Melt, ground and rain waters destroy walls and bearing structures underground structures. You can not be negligent about the problem of waterproofing underground structures - all work must be carried out by professionals. If unskilled workers violate the work, then a number of problems can be encountered. As a rule, this can be corrosion, a decrease in the quality indicators of concrete, deterioration in performance. internal structures, damage to power voltage cables. Also, do not forget about the harm that will eventually be caused to all property stored there.
Implementation of roofing and cladding and repairs: waterproofing of flat roofs, terraces and balconies, insulation of flat roofs, green roofs, basement insulation, facade insulation, replacement of windows, lightning; roofing, plumbing. Waterproofing of roofs and structures, thermal insulation of buildings, moisture-resistant paint; cast and antistatic floors, repair of balconies and terraces.
Waterproofing of roofs, balconies, terraces, execution of sloping roofs; carpentry, roofing, sheet metal work; installation of roof windows; roof sale. General roof repairs incl. repair chimneys, bridges, plumbing elements, etc.; sprinkler spraying combined with anti-mold and anti-spruce spraying; risk pruning and other height work; built-in attic; insulation of horizontal roofs; repair, washing and coating of facades; painting and assembly of metal structures; cleaning work.
Our company has everything necessary equipment to comply with all requirements for different types waterproofing of underground structures necessary for its long-term operation.
Cost of work
| Type of work | Price |
| Sealing joints in concrete | 680 rub./rm. m |
| Waterproofing of communication inputs | pipes: 50 mm - 1000 rubles / pc. 100 mm - 2000 rubles / pc. 150 mm - 2500 rubles / pc. |
| Sealing process openings | 180 rubles / piece |
| Crack waterproofing | 680 rub./rm. m |
| Waterproofing masonry | 900 rubles / m 2 |
| Concrete waterproofing | from 180 rubles/m2 |
| Waterproofing of block joints | from 680 rubles/m2 |
| Waterproofing rubble foundation | from 680 rubles/m2 |
| The exact list of works can be determined only after the departure of our specialist to the site and carrying out all the necessary measurements. | |
ASK A QUESTION
Features of waterproofing underground structures
Any building structure located underground, be it an underground parking lot or a warehouse, is at risk of penetration of groundwater and sewage. The difficulty of working on such objects lies in the limited access to the outer part of the structure, since it is hidden under the soil.
It is also worth noting that in the event of the start of repair of waterproofing in underground structures in conditions of strong leakage, it becomes necessary to carry out a set of works to block the water supply routes.
Operational work to protect the underground structure from leaks will not only protect the entire structure from flooding and further destruction, but also preserve the property stored there.
Types of waterproofing underground structures
As a rule, work on waterproofing and sealing of the object is provided for at the initial stages of the construction of the building, since the external walls of the structure are not yet covered with earth, and it is easier to get to them. An important condition for high-quality waterproofing is the equipment of a reliable drainage system. To prevent the destructive effect of water, reinforced concrete structures are processed, which is divided into several stages.
Primary waterproofing- the task is to ensure the stability of the structure to the aggressive environment that daily affects it. For this, concrete mixtures and special additives with high moisture resistance and frost resistance are used.
Secondary waterproofing is the process of applying a special protective layer coating waterproofing. PVC membranes are also used to protect the surface from the effects of an aggressive external environment. If work is underway to restore and repair waterproofing, then best method- injection waterproofing.
HydroStop company services
Our specialists will restore the broken waterproofing system in the underground structure. The cost of services will depend on the features of the object such as: area, degree of destruction of the structure and the required time frame. For consultation, you can contact our dispatch service and call a specialist to the site to draw up a detailed estimate of waterproofing work.
