Methods for repairing interpanel seams. Emergency interpanel seam. Solution. Sealing of seams on the Tight seam technology. Seam sealing

About 50% of the total housing stock in the country is occupied by panel apartment buildings. In a certain period of time, it was the construction of such structures that made it possible to provide housing for many citizens. The main problem of such structures is the leakage of panel joints. That is why the sealing of external seams in a panel house is the main task necessary for high-quality insulation of the building.

This allows you to improve the microclimate in the apartment, as well as reduce energy consumption. It helps to get rid of mold and other problems. Sealing interpanel seams in panel houses carried out by industrial climbers. Do-it-yourself repairs can only be done on the first two floors of the house.

Sealing joints during construction

Not so long ago, this work was not given much importance, because the main task was to increase the pace of construction. Many construction companies in order to seal the joints of the panels, a simple tow was used. The best option was to use rubber seals. Then the seam was covered with the usual cement-sand composition and bituminous mastic.

Since every building structure shrinks over time in the first years of construction, this is often the cause of depressurization of the seams. Water that enters the formed cracks destroys the solution and opens the joint for precipitation and wind.

You can seal the seams between the panels in the old fashioned way, but how long such a finish will last is a matter of several years. There are several ways to seal joints between panels in a panel house, which depend on their condition:

  • In cases where the concrete filling is generally preserved, cosmetic repairs can be carried out. This method is cheap and not very effective.
  • When the main area of ​​the seam has been preserved quite well, but some defects are noticeable, the seam is partially opened during the repair process.
  • by the most the best option is the sealing of seams according to the technology " warm seam».

It must be remembered that it will not work to seal the joints from the inside of the apartment. Work should be carried out directly on the facade of the building.

Sealing of seams is carried out along their entire height. Otherwise, the water that enters the part of the joint will destroy the repaired area. For this reason, this issue should be resolved with neighbors. This will not only be more reliable, but also cheaper.

The amount that will have to be paid out to repair the joints of the outer panels is affected by the need to order the services of industrial climbers. It is they who are engaged in the repair of facades of multi-storey buildings. It should be noted that lifting towers in e that case won't be able to use.

Repair without opening the joint

The cheapest option is to seal panel joints without opening them. It is better if this method is used only when the joint coating is in good condition. First, the seam is examined. Using a spatula, remove the old mastic. If a cement composition retained its reliability, you can save money and perform cosmetic repairs. However, in most cases, this solution does not lead to the best result.

Then perform the following actions:

  • The cleaned seam is treated with soil deep penetration. It is better if it contains fungic additives.
  • If necessary, the destroyed sections of the seam are sealed with mortar.
  • After the entire joint is covered with mastic with water repellency. In the store you can find various formulations, which consist of one or two components. Many experts prefer two-component formulations based on polyurethane.

The components of the solution should be stirred with a mixer. In this case, you must follow the instructions on the package. The front edge of each panel is closed with construction tape so that it is not stained with mastic.

Partial seam opening

If part of the coating is broken or there is no sealant behind the cement mortar, it is necessary to partially open the joint between the panels. This method is more reliable than cosmetic repairs. Work is performed in the following order:

  • First, the collapsed cement composition is removed. When opening only a certain part of the seam, it is necessary to drill holes in it every 25 cm. In this case, a 10 mm drill must be used.
  • Then the empty areas behind the plaster should be filled with mounting foam. To do this, use a construction gun, conveniently dispensing foam.
  • After the foam has hardened, its protruding part must be cut off. The entire seam should be treated with a primer. All areas that have been opened must be plastered.

At the final stage of the work, the joints are processed with bituminous mastic.

Warm seam technology

This technology is the most high-quality way of sealing interpanel seams. Its cost is quite high, but the result justifies expectations. The work is carried out according to a simple scheme:


This technology of sealing joints today is the most effective way repair of external surfaces panel houses. When choosing this method, the efficiency of work is the highest. The seam is insulated, becomes waterproof, and also protected from precipitation. This allows you to increase the life of the entire house.

Sealing of interpanel seams in multi-storey structures performed by professionals. It is possible to conduct experiments only at the level of the first and second floors - with the construction of reliable scaffolding. In other cases, it is required to call industrial climbers.

Sealing joints from the inside

If the cold season has already begun, and trickles of air seep through the joints, urgent precautions must be taken. Usually they are temporary. This is due to the fact that sealing the seams from the inside is the wrong approach to work. After rain, moisture accumulates in the cracks and contributes to the rapid destruction of the sealant, no matter how reliable it is.

If the gap is not closed, it will be blown through, and moisture will evaporate. When the seam is sealed, the water will remain in the gap much longer, since the joint is not ventilated. The consequences can be dire.

The same applies to the insulation of the wall from the inside. By choosing this method, the dew point, which should be in the middle of the panel, is shifted to the inner surface of the wall. As a result, between the insulation layer and interior decoration wall surfaces will constantly form streams of water. Moisture will quickly destroy the adjacent flooring. Sealing the seams from the outside will help to avoid these consequences.

What materials to use

Filling the gaps between the plates is carried out using polyurethane foam"Polymerfeks". If the material of insulation of the tubular type "Vilaterm" is chosen, it must be laid in bituminous pastes or mastic.

You can insulate the insulation with mastic. It is applied outside the joints. Mastic will protect the insulation material not only from moisture, but also sun rays. On each side of the seam, the mastic should cover the panel by 3 cm.

In old apartments, with the constant destruction of the insulation, mold begins to develop on the walls. For this reason, mold pockets are treated before performing the secondary sealing. This work is done in the following order:

  • the infected area is cleaned;
  • dried by natural ventilation for three days or using a heat gun;
  • treated with a biocide;
  • covered finishing materials with antiseptics.

The walls of old buildings, into which fungi have penetrated quite deeply, are very difficult to “cure”. Therefore, it is better to hire a construction team that will process and clean the surface in accordance with the technology.

conclusions

Thermal and waterproofing of the joints of panels of old houses should be carried out in accordance with the "warm seam" technology. This will protect the wall from further destruction, as well as create favorable conditions in the apartment. It is better if the wall is processed immediately on large area otherwise, after a few seasons, moisture may destroy part of the repaired surface.

When it is necessary to make temporary repairs, it is permissible to perform a cosmetic finish on the walls or partially insulate the seams. This will help to avoid further destruction of the walls. It is not recommended to fill gaps from the inside. This is not only wasted money, but also an extra reason for moisture stagnation at the joints between the panels.

You can figure out how to seal the seams from the outside in a panel house according to the instructions for the “warm seam” technology. However, all work at height is carried out by industrial climbers. This will allow you to do the job better and protect yourself from possible injuries.

Sealing of interpanel joints in residential buildings represents a whole complex of repair and restoration works. This is the renewal of the heat-insulating contour along the entire facade, and the external waterproofing of the seams. These construction operations are carried out by qualified teams of industrial climbers using highly professional skills, specialized equipment and special materials. Understand that a panel building needs additional seam sealing or a complete replacement insulating material at the joints, quite simply.



Constant drafts in the rooms, dampness on the walls inside the house (especially in corner apartments), as well as the appearance of fungal formations and mold - all this indicates the unsatisfactory condition of the interpanel seams of the building. If at the joints of the plates inside the apartment the wallpaper is lagging behind or the plaster is darkening, and cold air blowing noticeably from the corners, then this is already a sign of the building's accident rate. In this case, it is necessary to conduct a professional examination of the state of the interpanel joints and immediately (as soon as the weather permits) start repairing the joints between the plates.

Joint sealing technologies and materials used

Methods for repairing interpanel joints, the methods and materials used can be different - it all depends on the degree of destruction of the joints, general condition home and other conditions, including the possibilities of the estimated restoration budget. A typical device of a modern “warm seam” between slabs of residential large-panel housing construction consists of several layers of the following type:


1) Construction and mounting foam made of polyurethane, hermetically filling all internal joint cavities;


2) Foamed polyethylene heat-insulating cord "vilaterm", which is an elastic dense material, specially designed for interpanel seams;


3) Sealing material ( polymer composition or bituminous mastic), with the help of which external insulation of the joint is carried out, protection from ultraviolet radiation and moisture.



As for the outer waterproofing layer, both options should be considered in more detail, both from a technological side and from an operational point of view. Moreover, the use of this or that material has a number of pros and cons, and the choice is determined mainly by the purpose and nature of the work. So…

1.Polymer-cement mortars

These materials are provided for the use of traditional, proven over the years technology of repairing interpanel joints. The main advantage of using these mixtures is the preservation of the general appearance of the building - the seam practically does not stand out against the wall of concrete slabs. There is only one drawback - a limited service life associated with the gradual appearance of cracks in solidified solution. The problem can be solved with the help of special impurities, but this also leads to a significant increase in the cost of technology.

2. Sealant based on butyl rubber and polyurethane

These are relatively new materials, if we talk about the context of using large-panel houses in facade sealing. However, the popularity of using sealants is growing rapidly - many experts recommend these compounds not only for repair and restoration work, but also for sealing the seams of new buildings. Due to the increased plasticity, the sealants are highly resistant to various kinds of deformations, including those that occur during the gradual displacement of the plates. A significant limitation for the use of sealants is one - the presence a large number chips, irregularities and transitions at the joints of the plates. A thin layer of sealant is sometimes simply not enough to compensate for these shortcomings.

Technical regulations for sealing interpanel seams

The specialists of our company adhere to the rule of the widest possible use of advanced construction technologies and the best modern materials when sealing joints. Still, the work is carried out in hard-to-reach places at height, and requires increased responsibility. The use of traditional cement mortar takes place only in conditions where it is impossible to implement the "warm joint" technology in full. The full regulation of repair and restoration work in general terms boils down to the following order:


1) Opening (or preparation) of the seam using hand tool or small-scale mechanization. For this purpose, industrial climbers use pneumatic chippers and perforators, picks and ordinary hammers;


2) Removal of the remnants of the old insulating material, mortar and insulation from the seam cavity. Cleaning the adjacent edges of the plates from fine inert dust, fungal deposits and mold, treatment with an antiseptic composition;


3) Repair of chipped corners, cracks, and other external damage to the slabs using a polymer-cement mortar - work is carried out locally at the interface of the panels and repair of the roof of the balcony;


4) Filling the mouth of the seam with polyurethane foam (the brand is selected depending on the air temperature, the time until the subsequent technological operations is maintained for about two hours);



5) Thermal insulation of the gap between the plates using a "vilaterm" bundle of the appropriate diameter (from 10 to 80 millimeters). The diameter is selected taking into account material compression up to 20%. The heater is installed without adhesive base i.e. dry. Moreover, the cord is laid first in horizontal joints, then in vertical ones without breaking, and the joints are located at a distance of more than 0.35 meters from the intersection of the seams. Under no circumstances should the material be twisted. After the "vilaterm" it is closed with polyurethane foam, the excess of which is cut flush with the wall, or it is sealed with mortar;


6) Waterproofing joints with outside by applying a layer of polyurethane sealant or mastic based on butyl rubber. For example, the composition of "TechnoNIKOL No. 45" (butyl rubber, mineral additives, filler and organic solvent) is a mixture of dark or light shade, characterized by good adhesion to concrete, high elasticity and tear resistance. The time of preliminary hardening of the sealant at an air temperature of 18-22 degrees Celsius (and a layer thickness of 3-5 millimeters) is usually no more than one hour.

The nuances of performing work on sealing joints

When sealing interpanel joints in winter, use compounds and sealants that meet the specifications for use at low temperatures. Polyurethane construction and assembly foam should fill all the voids inside the joint evenly, densely, without gaps and cavities. The sealing layer of mastic on the outside should not have thickenings, sagging or breaks - our experts recommend a thickness of four millimeters (plus or minus 2 mm). The application of sealant, unlike polyurethane foam, on a wet or frosty surface is strictly unacceptable. Due to the need to obtain permits to perform high-altitude work at facilities (as well as a number of approvals), our company strictly adheres to the recommendations of SNiP 3.03.01-87, namely:


Sealing works are carried out in the absence of fog and precipitation;



As for the time required to complete the work, it is calculated approximately, based on thirty to forty linear meters of seam per day per specialist. A large amount of work may require a team of several highly skilled industrial climbers. Fortunately, our company employs true professionals in their field who will not let you down and will hand over the object on time. However, in some cases, we may need the help of the owner (or owners) to ensure maximum efficiency in the execution of work.


For example, sometimes the key to the attic space or access to the roof of the HOA or managing utility companies is issued only personally to the owner of the apartment against signature - in this case, we cannot do without the help of customers. In addition, wall-adjacent homeowners may be required to have access to 220 volts to connect an extension cord. Help in alerting (or searching) the owners of cars parked directly under the wall of the house will also come in handy.

During the years of panel construction of buildings, many series of projects of residential buildings and non-residential buildings have been created, which differ structurally. But technologically they all have common pros and cons in the course of their operation. The most significant link in the chain of maintenance of a panel structure is a seam connection at the joints structural elements. The fact is that during the settlement of the building, an insignificant, but change in geometry inevitably occurs, which manifests itself in the form of cracks along the seams, sealed with plaster.

The house "breathes", and this is quite a natural and normal state of it, but it creates a lot of unpleasant problems in eliminating cracks. It is clear that the panels can slightly shift relative to each other, and all displacements inevitably add up at the seams, as the most weakened place. In this case, the sealing of the seams is violated, the essence of which is to putty the empty spaces between the panels.

Reinforcements with reinforcement in the practice of repairing the first series of five-story panel buildings were experimentally carried out, but this led to the appearance of two new factors: cracks on the panel itself, and through freezing of the walls. The seams must have a sufficiently plastic seal. Until the seventies of the 20th century, tow was used in the body concrete structure, with external protection against precipitation in the form of a solution and bituminous varnish. Later, this filler was abandoned in favor of a material such as vilaterm.

So the panel seams are sealed using new technology.

Foamed polyethylene perfectly retains heat. But in terms of plasticity, such material is much more advantageous. Over time, the technology of using new materials has been improved, and now when repairing panel joints, there is a choice, depending on the dimensions of the distance between the plates, how much the junction should be protected from weather factors and the accessibility of the work site itself.


Since the sealing and sealing of joints in a panel house is important for improving thermal insulation and waterproofing, the main materials during work are: vilaterm and polyurethane foam. Similar materials can be combined quite well when sealing spacious cavities, where the filler is Vilaterm, and the sealing material is polyurethane foam. If the location of the cavity is not directly accessible, it is usually filled with mounting foam or foam through the holes in the vilatherm.

In the event that repair work was carried out earlier with sufficiently high-quality external protection, but during this process inter-seam cavities were preserved, for which it is necessary to insulate inter-panel seams in prefabricated houses, technological holes are made, 3-4 per meter of seam.

Sealing seams in a panel house, the technology of sealing seams is not particularly difficult now.

Through special holes, the cavities are filled without opening the old seal, followed by the application of a protective layer of mastic. In a similar way, using technological windows and holes, sealing work is also carried out. floors inside the building.

Without going into technological subtleties, we can say that, depending on the specific state of the panel interfaces, the technologist of our company chooses the most economical and high-quality way to eliminate voids, based on fifteen years of experience in the enterprise in this area, and the experience of using new technologies in house building.

The owner of a building or apartment is always interested in maintaining the quality of the building, and therefore seeks to protect it from the effects of water, sun, temperature extremes and other climatic factors. There are several technologies for sealing interpanel joints in prefabricated houses and insulating panel joints.

The most suitable in this regard will be the work carried out by our company warm seam technology.



Tight seam technology

This method is a more progressive version of the method of sealing the joints of panel structures. This technology involves, in addition to protection against moisture, filling the seams with a full-bodied cord made of foamed polymer from the assortment of Vilaterm.

High-quality sealing of interpanel seams in panel houses is carried out using material from Macroflex, Penoflex, etc. Such elimination of voids in the seams is possible if the cavity has the same width over a long distance, and there is no deep chips. If you do not comply this requirement, then the tube will not close the deepening of the chip or a significant expansion of the cavity at the junction of the structures, as a result, gaps will appear, repairing the interpanel seams in panel houses in this case will not bring the proper result.

Since the change in the geometry of the joints is usually associated with the shrinkage of the newly constructed building, the density of the joint filling using the "dense joint" technology is usually ensured during planned repair work, or at the request of the customer on structures with a long service life.

If the laying of the vilatherm tube is not flattened enough to hold in the seam, it is filled with mounting foam.

Width gasket materials is selected with an allowance of 10 - 15% of the size of the seam in the widest possible place of the seam, followed by sealing against moisture.

Technology "Warm seam"

"Warm seam" in its classic version performed by the production of works in the following sequence:

Preparatory cleaning of the surfaces of the future seam;

Processing of joint surfaces by applying moisture and mounting foam as an adhesive material;

Laying vilaterm sealant on non-hardened foam;

Laying a cord or tube of vilaterm from polyethylene foam;

Filling the laid tube with mounting foam;

Foam sealing of all prepared joints, including intersecting ones, from voids and cracks;

Removal of excess macroflex after foam polymerization;

Final sealing with hydrophobic mastic.

This technology most fully and qualitatively meets the requirements for insulation with simultaneous waterproofing of construction interpanel seams.



A comparative analysis of two technologies: "Warm" and "Dense seam", shows that the material base in both cases is the same, and the difference is only in the volume of building materials used, and in the cost of the complex of works performed.

If the seams of a panel building are not insulated and waterproofing of the interpanel joints is not made, the walls are very quickly destroyed by moisture and ice (dew point effect), and the residents suffer from cold, high humidity, mold, leaks and other inconveniences.

Required for all panel buildings. Sealing of joints between panels includes insulation of the joint cavity and waterproofing of the panel joint from the outside. Building panels often have chips and irregularities, so inside the interpanel joint there is not only a technological expansion joint, but also large openings formed by defective panels. The space between the panels must be filled with insulation, and the junction of the panels must be waterproofed during the construction of the building. But in modern construction, seam sealing is done nominally. The joint between the panels is often covered with cement mortar, and not the prescribed building codes, special sealing mastics. Water seeps through the uncompacted space between the plates and cold air penetrates.

Absolutely empty interpanel seam. Chips of slabs on the first floor.

Panel joints may be uneven, the interpanel space must be insulated, densely filling all voids. The slabs are often offset, so the size of the interpanel joint may vary. Therefore, high-quality sealing of seams on panel buildings will require experience and knowledge of technological methods for all types of plate defects in various series of panel houses.

Overview of technologies for sealing joints between panels.

Joint putty- surface (shallow) sealing of interpanel seams. This method (work technology) of repairing seams does not involve opening and removing the old sealant. Waterproofing mastic is applied directly on top of it. This repair method is applicable if the previous layer of mastic is slightly damaged, and thermal insulation material save your properties completely. It is usually used to give the appearance of the work done.

Waterproofing the junction of plates- sealing joints with preliminary removal of the old sealing mastic. A complete cleaning of the joint of the plates from the previous sealant is carried out. A fresh layer of mastic is applied to a clean interpanel joint. With this technology, there is no seam insulation. If the vertical seam of the building is completely sealed, this will help against leaks from the outside of the house in this area. But the cold will still penetrate through the horizontal seams.

"Warm Seam"- more efficient technology sealing seams than the previous ones. Complete or partial cleaning of the interpanel space and the joint of the plates from the old sealant and sealant is carried out. Then a vilaterm insulation is laid, the cavity of which is sometimes foamed. Sometimes they foam the cavity of the seam on the surface, but most often they do without expensive mounting foam. And then cover the joint of the plates with sealing mastic.
Sometimes, with this technology of work, the crosshairs of the plates are foamed to the full depth, in this case the technology is called "warm seam +". In terms of insulation, this helps, but is still a half measure. It is necessary to insulate the entire seam, to the full depth. That's why best technology sealing seams, is a "tight seam".

Sealing of seams on the Tight seam technology. Seam sealing.

The most advanced method of insulating and sealing seams is the "Dense Seam". Unlike other technologies, the "Dense Seam" technology does not combine the use of vilaterm or foam, but both vilaterm and polyurethane foam are used in a complex and systematic way.

As a matter of fact, the "Linen seam" technology is the same as the "warm seam" plus capital foaming of the seam cavities to seal the entire interpanel space of the seam. With "Warm seam" in best case the cavity inside the vilaterm is foamed and the foam expanding the vilaterm with a "swollen sausage" seals the interpanel space well, but this works with a perfectly even joint of the plates. In practice, reinforced concrete slabs are chipped inside and the interpanel space is irregular. geometric shape with unpredictable openings. When building a house, builders try to mount the slabs with the chips on the inside so that the house makes a good impression. And also, when the building settles, the crosshairs of the vertical and horizontal seams are displaced, forming an interpanel space of irregular shape, therefore, with a "Warm seam", the vilaterm does not insulate the seam tightly enough. For high-quality insulation of the interpanel seam, it is necessary to foam not only the cavity inside the vilaterm, but also the space behind the vilaterm, not sparing the mounting foam. Then the joint of the panels must be sealed with good quality mastic.

Even following simple everyday logic, compare the thickness of the plate and the diameter of the insulation. Thickness panel plate from 30cm to 70cm, depending on the series of houses, and the velaterm insulation has a diameter of up to 70mm, usually 30mm or 40mm is used for insulation of interpanel seams. Thus, with a "warm seam" only the outer part of the slab is insulated. If your neighbors did not insulate and seal the seams, then cold air will penetrate to you through the "neighbor seams". There is only one way out - to insulate with the help of velaterm - outside the seam, and mounting foam - in depth, between the panels. It is necessary to foam ALL the empty space between the plates using the "Dense Seam" technology. The use of polyurethane foam "flies a pretty penny", so management companies, at best, use the "warm seam +" technology, i.e. they foam the crosses, and then "a little". Real insulation involves the complete filling of the seam with polyurethane foam. Mounting foam allows you to achieve the proper seam seals. Polyurethane insulation is widely used in construction, such as clinker panels, sandwich panels, roof and wall foam insulation.

If a seam sealing panel joints were not made or carried out poorly, water can seep into the apartment, flowing down along vertical seams and spreading along horizontal ones. Or form as condensation on a cold wall. Cold air enters through the cavities of the seams and blows heat out of the apartment. Fungus and mold form on the walls in apartments, wallpaper peels off and plaster falls off. In winter, in such apartments, you can easily get the flu.

Each tenant of a modern panel house sooner or later comes to the conclusion that it is necessary to conduct a quality sealing interpanel seams.

Sealing materials must be flexible. Since the seams in a panel house concentrate all the load on themselves. When the house settles, rigid inelastic seams inevitably crack. For example, the cement mortar used by builders cracks, various profiles and cords made of hydrophilic rubber are unevenly deformed. The most correct is the insulation and sealing of seams with dense filling of voids between seams with elastic materials using the "Dense Seam" technology.

This is a waterproofing of the joint of the wall plates of the building and filling the space between the panels. Seam insulation achieved by completely filling the space between the panels with foam. First, a vilaterm is laid between the panels. After that, in the hole made in the vilaterma, the entire intra-seam space is filled with foam. Vilaterm prevents the release of mounting foam to the outside. The foam fills all the voids inside the seam, forming a blind plug. Then the joint between the panels is coated with sealing mastic.
Sometimes the joint of the panels is very small, i.e. the panels are tightly pressed from the outside, but inside there is still a cavity, a deformation seam. In this case, vilaterm is not laid. The seam is filled with foam through the drilled holes, and the joint is sealed with mastic. The foam in this case is completely covered by the panels and lasts a very long time, and the sealant prevents the penetration of moisture into the seam.

High-quality sealing of interpanel seams and insulation of the interpanel cavity can only be carried out using the necessary technologies and the necessary materials. Any deviation from the technology or in the choice of materials when sealing joints leads to disastrous results.

Qualitative repair, insulation and sealing of seams implies work on the technology "Dense seam" with subsequent waterproofing of the joint between the panels with sealing mastic.

Sealing and insulation of seams according to technology "Tight Seam" completely insulate and seal the seams. Many firms only partially solve the problems of insulation and tightness of interpanel seams, as they violate the technological order of work. Either the vilatherm cavity is simply foamed, or an empty vilaterm is laid, but the cavities between the panels are not foamed. Or they do not pull out the old, rotten sealant. We guarantee high-quality - dense insulation of seams, providing complete sealing of the interpanel space and waterproofing of the joint of external wall panels.

If the joints are sealed for the first time, it is necessary to dismantle the cement putty (plaster) made by the builders, then remove the tow or rubber (boards, rags) with which the builders filled the space between the panels. And then it is necessary to make high-quality sealing of the seam (waterproofing of the joint). If the sealing of the seams has already been carried out, but the desired result is not achieved, then the technology was violated or not used quality materials. In this case, it is necessary to repair the interpanel seams. It is necessary to inspect on the spot what repair of the seams to make. If vilaterm is already laid in the seam, it is necessary to foam the seam and seal the joint. If the seam is completely insulated, the sealant just cracked from time to time, then it is enough to coat the joints between the panels with sealant.

Primary and secondary sealing of seams in panel houses.

Primary seam sealing called the sealing of previously unsealed seams. Currently, most houses are rented by developers with sealed seams. Secondary sealing Is it cosmetic or overhaul sealing interpanel seams, depending on the degree of destruction.

Cosmetic repair and sealing of seams in panel houses.

Cosmetic repair and sealing of seams includes cleaning the edge of the seam from the old sealant and applying a new sealing mastic to the joint of the plates. Cosmetic repair of sealing joints is carried out if the old layer of sealing mastic is cracked or partially fallen off. But at the same time, the insulation inside the seam was preserved, and there were no leaks or freezing of the walls in the room, or other signs of seam defects.

Overhaul and sealing of seams in panel houses.

Materials used for sealing seams.

sealant(sealing mastic) - the main material for waterproofing and insulation of interpanel seams and joints. The sealant determines how reliably the seam or joint is waterproofed. If the sealant is qualitatively "taken root" to the seam, moisture will not get inside the seam and ice will not form. The service life of the entire building depends on the sealant!

Sealing mastic is a composite material based on polymers, mainly polysulfide or liquid silicone rubbers. Sealants are used to fill various gaps and cracks in order to ensure their impermeability, it is used to seal interpanel seams, as well as to fill voids around window and door frames, heating pipes, water pipes, at joints and bends.

Vilaterm- it is environmentally friendly sealing material, made of polyethylene foam. The shape of the vilaterm is a hollow cylinder. Vilaterm is used to fill the voids between the plates.

Mounting foam This is a polyurethane foam seal. Used to fill voids. After leaving the balloon, the foam polymerizes and expands, filling the voids. After some time, up to 24 hours, the mounting foam continues to expand and seal the seam. High-quality polyurethane foam must have adhesion (compatibility) to materials, the voids between which must be filled.

Sealing seams in apartments.

In apartments above 2 floors, it is produced by the method industrial mountaineering. This requires access to the roof.
To gain access to the roof of the building, it is necessary to submit an application to the DEZ addressed to the chief engineer on behalf of the tenant of the apartment in which the joints will be sealed or the balcony joints will be sealed.
This application is accompanied by a letter of guarantee from our company, about our guarantees not to damage the roof of the building during the work. As well as certificates of climbers who will seal the interpanel seams.
We will take these documents to the DEZ ourselves. The customer only needs to sign the application.

Necessary conditions for high-quality sealing of interpanel seams:

1. Dry weather. (temperature can be any)

2. Quality and necessary materials depending on the type of building facade.

3. Roof access. (we will issue it ourselves in 1-2 business days) Leave a request at or call back.

Sealing of glazing joints and ventilated facade panels.

Sealing of seams and joints of metal structures.

Metal prefabricated structures, various hangars, warehouses require sealing of seams. The main reason for the leakage of the roof of such metal structures is that the joints between the roofing sheets are poorly attracted to the crate. And the gap between the sheets is quite large. A large gap will leak anyway, regardless of the amount of sealant used to seal the joint. Only correct method roof repair will eliminate large gaps between construction sheets, and then sealing the joints of the metal structure.

Sealing plaster joints.

In some panel houses, in order not to perform planned sealing, developers seal interpanel seams plaster mixture. In this case, the interpanel space is not filled. The joint of the panels is simply plastered. Inside, there are voids between the panels. Moisture and cold air still seep through the plaster, and water from the roof can spread along the empty seams into the apartments.

It is sometimes difficult to open the plaster interpanel seam along the entire length. For example, the interpanel gap is very narrow and plastered "to the conscience" with concrete increased strength. In this case, it is possible to produce high-quality filling of the interpanel space with the help of mounting foam. It is necessary to drill holes in the seam every 20-30 cm and foam the seam through the holes. The foam expands inside the seam and fills the empty space. Then it is necessary to smear the seam with sealing mastic over the plaster in order to completely waterproof the seam. In this case, the plaster joint on top of the foam serves as an excellent protection for the insulation (mounting foam) from painting, and the sealant layer on top of the plaster is an excellent protection of the entire interpanel joint from moisture.

Drilling a plaster joint. Application of sealant.

What else is useful to know about the insulation of seams and waterproofing of joints.

AT winter period water freezes in the interpanel seams and cracks of the facade, and this leads to the expansion of cracks and seams, and the destruction of the wall. It is no secret that ice has the power to destroy metal structures, concrete, stone and other materials. Water penetrates through the walls of the facade through, and turning into ice expands the material, which leads to the destruction of the building. Don't procrastinate on repairing panel seams and you'll prolong the life of your building.

If the distance between the panels is too large, the seam is insulated by laying a vilaterm tubular insulation. The main insulation in the interpanel seams is polyurethane foam. Mounting foam fills all the voids between the panels: narrow gaps into which the vilaterm will not fit and the depth of the seam between the panels. And then, at the final stage, a sealing mastic is applied to the joint between the panels.

There are signs by which you can determine if your building needs repair of panel seams. The main ones are leaks, freezing, damp walls, drafts in the corners. Sealant can be applied to the seam at sub-zero temperatures, but not in wet weather.

Sealing the seams of panel houses:

Professional sealing of interpanel seams and insulation of interpanel space is necessary work to permanently rid your home of leaks, freezing and mold.

Overhaul of interpanel seams is carried out only according to the Tight Seam technology developed by engineers of the StroyAlp group of companies. According to which the SNiP was subsequently adopted on sealing the seams of large-panel buildings.

Insulation and sealing of seams of windows and ebbs:

In order to get rid of mold around the windows, window sealing is carried out - sealing the joints and junctions of double-glazed windows and panels, insulation of junctions of ebbs and panels.

Sealing of interpanel seams in prefabricated houses different series produced using different technologies, as the designs of houses and panels are different.

Insulation and sealing of the seams of apartments includes sealing of interpanel seams, sealing of loggias and balconies, sealing of windows and ebbs, and, if necessary, insulation of seams from the inside - from the side of the apartment.

Materials for sealing the joints should be selected based on the technology used for sealing the joints and the series of the house. Sometimes in one series of houses, developers use different facing materials, so an individual selection of a sealant is often necessary for better adhesion to the surface.

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