Mounting foam is perfect for sealing interpanel seams. But it has both pluses and minuses.

Advantages of using polyurethane foam:

• qualitatively fills all cracks and voids;
• it is easy to work with it;
• quickly dries and hardens;
• acts as a heat insulator.

Among the shortcomings, one can note the high cost and destruction under the action of direct sun rays. Thus, mounting foam is perfect for sealing small cracks from an apartment.

Instructions for sealing seams with mounting foam

The sealing of joints with mounting foam in a panel house should be approached with all responsibility so as not to completely violate the tightness. We recommend using our step by step guide.

Stage 1. Selection and purchase of materials

First you need to make a choice and purchase quality material. Polyurethane foam is sold in special cylinders that contain propellant and liquid polymer. Upon contact with air, the polymerization of the material occurs and the foam hardens.

In the store you can be offered both semi-professional and professional mounting foam. What is the difference?

The first can be used without a mounting gun, simply by putting a special plastic tube on the cylinder valve. It has an adapter lever, with the help of which polyurethane foam is sprayed. Semi-professional foam is better to buy for a small amount of work.

Professional foam is contained in cylinders with working valves, so it is necessary to use a mounting gun. It has a convenient dispenser, a long metal barrel and an ergonomic handle. All this allows you to work with mounting foam even in hard-to-reach places. After each use of the gun, it must be cleaned and rinsed with a special tool.

As for the quality of the foam, it is determined by several main characteristics: the temperature of use, the viscosity and the expansion of the foam. Depending on the temperature of use, off-season, summer or winter foam is isolated. For sealing interpanel seams from the inside of the room, summer polyurethane foam is ideal, since it is designed to work at temperatures from +5 to + 35 degrees.

Stage 2. Surface preparation

So, we figured out the purchase of mounting foam. Now you need to prepare the surfaces for embedding. We provide access to the seams and clean them from the old sealant. We take out the old materials used to seal the seams, carefully clean the surface with a brush or brush and wipe it with a damp sponge.

Stage 3. Foam application

The preparatory work is completed - we proceed to the direct application of mounting foam. We work from floor to ceiling. We insulate the upper and lower joints along the entire length, and not only at the joints of the plates.

Stage 4. Final steps

As soon as the foam has completely hardened, we cut off the protruding parts and proceed to the putty.

If the crack is large, first lay the insulation, and then use the mounting foam.

All work using polyurethane foam can only be performed in cold or dry weather. Under no circumstances should work be carried out high humidity air. Otherwise, you can destroy the seam, since water at sub-zero temperature expands.

How to seal interpanel seams with polyurethane foam insulation: instructions

The insulation is a polyurethane foam tube with a hollow or solid structure. To seal cracks, it is better to use a hollow one, since it is easier to choose the required diameter and it is more elastic.

Advantages:

• low cost;
• easy installation;
• durability;
• not subject to decay;
• sun resistant.

However, there are also disadvantages. With poor sealing, polyurethane foam insulation absorbs moisture, then freezes and collapses. It does not fill the seam tightly everywhere, so water penetrates into it.

Installation of polyurethane foam insulation

As well as when sealing interpanel seams with foam, we first carry out preparatory work and purchase materials. It should be noted that the diameter of the tube should exceed the diameter of the gap by 10-30%.

After finishing preparatory work, we put the tubes in the seam and tamp with a special spatula. Then we seal the seam with mastic.

Combined method of sealing cracks in the apartment

To date, the combination of the above methods is effective way sealing. Such a combination is known under the name "Warm seam".

• Stage 1. Cleaning the seam

Clean the seam with a stiff metal brush, remove dust with a vacuum cleaner and, if possible, wipe with a damp sponge.

• Stage 2. Pouring mounting foam

Fill the seam should be 1/3, as it will increase in volume.

• Stage 3. Laying insulation

Before the foam hardens, we lay polyurethane foam insulation, ramming it with a wooden spatula.

• Stage 4. Closing the seam with sealant

We seal the seam with mastic. Cement plaster can be used as a sealant.

Structures. Over time, interpanel seams and joints begin to collapse, resulting in the formation of mold, leaks and building fungus, which leads to freezing of the walls.

The main causes of the destruction of interpanel butt joints

The following reasons for depressurization of joints can be distinguished:

• non-compliance with technological standards during construction;
• gradual displacement of wall panels due to uneven settlement of load-bearing elements of the structure;
• deformation of panels due to temperature fluctuations;
• the impact on sealed joints of atmospheric factors, such as "acid precipitation", snow and rain.

Sealing materials

To seal and insulate interpanel joints, special sealing mastics and self-adhesive tape. These sealants are different brands, constituent elements and various applications.

Main accompanying material, necessary for sealing joints, is a sealant, which will perform a heat-shielding function, and is also the basis for the laid mastic and self-adhesive tape.

The best sealants are compounds based on foaming polyurethane (PPU). Due to these factors, destruction and deformation of interpanel joints occurs, which leads to rapid freezing of the outer walls in winter, as well as their leakage during heavy rains. As a result of this, not only the interior of the building can deteriorate, but also the risk of morbidity among the people there increases significantly.

The main types of joint sealing

• Primary sealing is used in new buildings where sealant treatment has not yet been carried out.
• Secondary sealing consists in repairing the joints of a building that is currently in operation.

Primary sealing

This type of sealing, as a rule, is carried out in panel houses immediately after their construction is completed.

Interpanel seams of new buildings are processed in 3 stages:

1. Empty interpanel cavities are filled with heat-protective polyurethane foam.
2. The interpanel seam is processed with the innovative Vilaterm insulation, which is a fine-mesh, fairly light white material.
3. Additionally, the seam is sealed from the outside with a special mastic that has good water-repellent properties.

The application of these three stages allows you to create the so-called " warm seam", which allows to provide reliable thermal and waterproofing in all weather conditions.

Secondary sealing

It is carried out in buildings where some time ago the interpanel seams were already subjected to this process processing. It is best to carry out secondary sealing 6-8 years after the primary insulation. Interpanel seams, the sealing of which is carried out again, are sealed by covering the old layer of sealant with a new one.

Interpanel seams. Sealing: general rules

Depending on the state of the seam, secondary sealing is divided into two types.

If it is in a satisfactory condition, if the old insulation has not undergone significant destruction, secondary processing can be limited only to applying a new outer layer of waterproofing mastic. If all the signs of severe destruction of the interpanel seams are clearly visible, then when they are re-sealed, it is required to carry out certain works. These include: opening the seam, removing all old fillers that have become unusable, and carrying out the entire range of sealing work, as in the case of primary sealing.

When performing repair work on panel joints, it is necessary to follow some rules:

• In case of leaking panel joints in the end wall, the interpanel seams of the entire end facade of the building, as well as the joints between the end panels and the longitudinal wall, are sealed.
• If a vertical joint of the longitudinal facade leaks, all vertical joints along the entire height of the house are sealed. In addition, all horizontal joints adjacent to it are sealed.
• If a defect is found in a horizontal joint, all joints located on three or four vertical rows of panels are subject to sealing.
• When carrying out repair work on panel joints, one should take into account the fact that sealants are subjected to tension and compression at the joints. This is influenced by temperature fluctuations, shrinkage and "creep" of concrete, as well as loads arising from the settlement of the entire building. Moreover, with an increase in the ratio of the thickness of the hermetic agent layer to the width of the interpanel seam, such loads become stronger. For this reason, the sealant layer should be half the width of the joint.

Sealing of interpanel seams. Technology

Interpanel seams, the sealing of which should occur as efficiently as possible, are processed in several stages. For the most durable sealing, it is necessary to open them.

We propose to consider the phased repair of panel joints with opening.

The following sealing of butt joints in prefabricated houses is called a "warm joint". Its main difference is the application of a layer of special heat-shielding foam to the base of the seams.

Such a repair of seams has passed a large number of tests and has already long time successfully used in many countries around the world.

Step by step seam sealing at home

Consider how to insulate interpanel seams.

1. At the first stage of work, before repairing the joints, it is necessary to carry out some preparatory measures. They consist in a thorough inspection of interpanel seams and surface preparation. This includes:

• cleaning surfaces from paint, dust, dirt and exfoliated panels;
• removal from the seams and joints of the old, worn-out insulation and sealing agent;
• crack patching.

2. The interpanel seams are carefully filled with heat-insulating. It should be noted that this material tends to expand during solidification and thereby fill the existing void inside the seam. Cleaning and sealing of joints in buildings can be carried out both manually and mechanized way. Before starting work, it is necessary to check the surface of the interpanel joints. It must be kept dry.

3. Insulation of interpanel seams by installing Vilaterm insulation, which is produced in the form of hollow tubes. It is widely used in seam repairs in panel buildings. According to its properties, the material has good elasticity, dense structure, it is quite convenient for them to work. Lay "Vilaterm" on a layer of foam that has not yet hardened. In diameter, it should be 25-30% larger than the width of the seam.

The laying of the insulation is carried out without breaks along the entire length so that there is room for applying sealant on top of the insulation.

4. The last stage is sealing the seams with a sealing mastic (water-repellent sealant), which closes the previously laid insulation.

This completes the sealing of the interpanel joints!

The sealing of joints between the panels of the house is carried out in the temperature range from -10°C to +30°C. In this case, there must be no precipitation, otherwise the sealing of the joints may be short-lived.

Interpanel seams, the sealing of which is carried out at a height above the 2nd floor, are sealed by qualified industrial climbers.

Frequently asked questions to Assol LLC:

✎ “The management company refuses to repair the inter-panel seams on the territory of the balcony, as well as the seams adjacent to it. According to their logic, after the balcony was glazed, it automatically became private property and the residents should carry out such repair work solely at your own expense. Are the actions of the management company legal in this case? Thanks for the answer."
✎ Interpanel seams should the management company make them?
✎ repair of interpanel seams who should do it?
✎ Who should close the interpanel seams in apartment building?
✎ Who should seal the seams in a panel house? interpanel seams current and overhaul?
✎ Who should repair the seams in a panel house?
✎ How to repair interpanel seams Podolsk
✎ How to draw up an application for interpanel insulation in an apartment building?
✎ In what terms should the leakage of the interpanel seam in the living room be fixed?

✎ Why do seams flow in prefabricated apartment buildings?
✎
Does the sealing of interpanel seams qualify as a major overhaul?
✎ What to do if the walls begin to get wet in the area of ​​​​the joints of the plates?
✎ corners of a panel house get wet what to do
✎ In what terms should the leak of the interpanel seam in the living room be eliminated
✎ balcony seam leaking application to the management company
✎ Who should seal the interpanel seams in an apartment building Let's try to answer some of them →

As the most effective solution to the problem of poor sealing of interpanel joints, the method industrial mountaineering the following method can act: Technology "warm seam". It is used to eliminate the problem of freezing of external enclosing panels and poor-quality sealing of panel seams. It is much more reliable and durable than other methods. The Warm Seam technology consists of the following components: Vilaterm-SP, Macroflex sealant, and Oksiplast mastic. Technical process sealing and thermal insulation of joints with the "Warm joint" system consists of a set of basic operations. It is up to you to decide which way to choose, just remember, when ordering high-altitude work on sealing seams, that the miser pays twice: you can’t save on restoration repairs. For achievement complete technology sealing interpanel joints is not enough to complete all the work on the insulation of joints between the plates. In addition to the above procedures, it is necessary to carry out work to seal the joints plastic windows with the wall of the house, as well as the seams of the joints of the elements of balconies and loggias. For their processing, the "warm seam" technology is used, in which sealing work is performed using the "Macroflex" sealant. The above seam sealing technology involves the repair of a balcony, which consists in waterproofing its roof, as well as the repair of bay windows, loggias and visors that are inaccessible from the inside of the building.

Does this work relate to the repair of interpanel seams?

• Good afternoon! I live in a panel house on the third floor, I have a question about a leak on the balcony at the junction of the balcony floor slab (concrete) and the wall of the house. This work can be attributed to interpanel seams? And is this type of work included in the duties of our management company?
  

Answer: Every month you pay for this service as maintenance and repair, there is such a line in the payment. This is called current repair of common house property. If within a month your written complaint is not fulfilled, write a complaint to the Housing Inspectorate

• Hello , where should I go about how to get rid of the fungus on the balcony on concrete, and if I get a refusal, where to complain?

Answer: Contact the CC and demand to eliminate the shortcomings. In case of refusal to apply to the court.

• What to do chairman of the Criminal Code refuses to repair the interpanel seams, referring to the fact that there was no majority during the votinginterpanel seams flow and penetrate.

Answer: File a complaint with the Housing Inspectorate and the prosecutor's office.

• Sergey. After submitting an application to the Criminal Code for sealing interpanel seams, in what time frame should they complete this type of work?

Answer: Usually within a month.

Reviews about Technology Warm Seam:

• naur abdi 7 months ago

Work on sealing interpanel seams in a panel house can be carried out at any time of the year, since modern insulating material for insulation of houses withstands any temperature and does not lose its properties even at high temperature fluctuations. pluses dampness, draft, cold will remain in the past. it remains only to entrust the work to specialists

Reply ·

• Yaroslav Mishchenko 7 months ago

In fact, the technology described in this video will be quite useful. Indeed, today the issue of saving energy resources is relevant in almost every family. And there are really quite a lot of houses in need of such processing.

• Johnny 7 months ago (modified)

Sealing technology Warm seam - is one of the better ways insulation sealing joints and seams in panel houses. This technology is engaged in Assol LLC. They are professionals in their field, each of their work is of high quality and cheap. I recommend. You won't regret it!

• VecherskiY Life 7 months ago

This solution is very promising for the repair of seams in our time.

For a long time, the technology of sealing joints in industrial and residential buildings left much to be desired.

But after the “Warm seam” technology was developed, all the negative aspects of the non-tightness of the seams were eliminated. The principle of this technology is to use latest material which has elasticity. After all, the materials used earlier were rigid. They wear out under the influence low temperatures. The peculiarity of the Vilaterm material is that when it gets into the seam, it fills the entire space tightly.

The material will gradually dry out. And along the perimeter of the seam, small holes are made, where building foam is subsequently placed. Holes according to technology are placed at a certain distance from each other. Vilaterm in combination with construction foam provides high-quality sealing.

• Anthony Ph. 7 months ago

if the seams in a panel house are leaking, then the procedure for sealing the interpanel seams, I think, is a mandatory procedure for all residents, given our difficult climate, in winter it can be very uncomfortable without this procedure. Sealing the seams on the outside will help keep the heat inside. And it is better to entrust such work to professionals.

Good afternoon!

Do you do balcony roof repairs? apartment buildings(18-storey building, series I-155)?

Do you have all the necessary permits/certificates/licenses required service organization(Housing)?

Provide an estimate of the cost of the work, including the cost of materials, based on:

Roof area - 7 sq.m;

Snow removal required.

Dismantling of the old rolled roof;

Installation of a new roll roof;

Sealing of two air ducts facing the facade of the building (seal sealing).

Sincerely, Alexander

Answer:

Let's do it. We will help you organize the exit to the roof. We have all the available permits and doptsski.

The cost of work without clearing snow and sealing air ducts will be 18 tr. with the cost of labor and materials.

Snow removal is an extra job. They can be negotiated directly with specialists on the day of work.

What to do if external seams in an apartment building are leaking:

Home / Articles / Interpanel seams Does the management company have to seal the seams?

/ What you need to know when ordering seam sealing?
/ Repair of interpanel seams and technology of their insulation
/ How to determine the series of a house and calculate the volume
/ How to close the interpanel seams of the apartment
/ Seam sealing - price determination
/ Causes of mold on the walls of the apartment
/ The walls in the panel house freeze through what to do?
/ Typical errors in sealing joints between panels
/ How is the inspection of the technical condition of interpanel seams, roofs and balconies carried out?
/ Frequently asked questions about seam sealing, what to do when seams leak?
/ How to get rid of fungus and mold on the walls of the apartment
/ How to properly insulate interpanel seams in a panel house?
/ Album of technical solutions: insulation and repair of joints of open and closed type
/ Technical instructions for sealing joints of prefabricated buildings with polymers

"Who should repair the interpanel seams in the house"

Readers turn to us with requests to explain whose duties include repair work on sealing seams, how housing offices that do not want to “fork out” for the restoration of joints between the panels of the house can be legally held liable. We have chosen the most interesting questions, our experts will try to give a detailed answer to them. We are looking for answers to your letters and calls in a variety of instances - from housing authorities to various government agencies.

How to force the UK to seal the interpanel seams?

Question: Our entrance filed a collective application with the Criminal Code with a request,. Public utility workers measured the temperature of the seams using a special apparatus. As a result, only a few apartments did not meet the standard parameters, the rest of the living space, according to experts, does not need to repair the seams. That's just a flood from the rain threatens all residents of the entrance. Docking seams almost completely spilled out on outside walls, but only the Criminal Code does not particularly care. How can you legally force public utilities to start repairing seams.

Answer: The current repair of the house necessarily includes the sealing of interpanel seams and has already been paid for by the monthly transfer of residents.

On a legislative basis, you need to be guided by regulatory documents:

4.2.3.1. Chapter

Local destruction of sealing seals of joints of prefabricated buildings should be eliminated as they are detected, preventing them further development.

Repairing the seams on the balcony - the responsibility of the tenant?

Question: We turned to the Criminal Code with a statement about the restoration of the seams on the facade of the building in the balcony area. Received a refusal, with a note that the seams are adjacent to the balcony, which is private property. How legitimate are the actions of the housing office?

Answer: There is no distinction in official documents for seams adjacent to the balcony and no. The outer side of the house is common house property, and therefore is subject to repair by the forces of the Criminal Code.

The management company refused to repair the seams?

- So who should seal the interpanel seams in an apartment building?

Question: The management company refused to repair the seams, citing that the repair work of the joints in current year not provided. But the apartments are cold, and in the summer, after the rain, smudges appear. After what period of time are the seams checked for sealing?

Answer: There is no definite expiration date for interpanel joints, especially with time a lot of nuances appear: the quality of work, well-chosen material. But regulations require companies to “…..2.6.2. In preparation housing stock for winter operation:

Troubleshoot: walls, facades

“….. 4.2.3.1. Local failures ….. of sealing joints of prefabricated buildings should be eliminated AS DETECTED, preventing their further development …..”

If the repair of the seams is not provided according to the plan

Question: An application was submitted for the repair of interpanel joints in December 2015. The result of the measurements revealed the need for repair of interpanel seams. Only we did not have time to schedule for the winter of 2016, we promised that the joints would be repaired in the summer. Is it right to postpone the repair for such a period? How to repair interpanel seams in Podolsk?

Answer : the work schedule is drawn up in advance, the budget, estimates are calculated. Therefore, the utility company will carry out the repair of the seams as planned.

Is it possible to force the Criminal Code to return the money spent on repairing the seams?

Question: It took urgent repair seam on the outside of the house. Did it on my own. Is it possible to recover the spent funds from the Criminal Code? Should I get a refund for the repair of interpanel seams?

How not to pay the management company for maintenance if you yourself repaired panel seams

Answer: Before starting work, it is better to first find out if your management company will go for it. Sometimes a correct and sensible explanation of your situation on initial stage(rather than direct complaints and threats) can positively resolve your issue. You will have to confirm the importance of the repair and provide invoices, photos, materials spent. Provide all this with an application to the management company and in case of an unmotivated refusal or delay in the inspection / repair, you can collect a fee for the work through the court.

Question: The Criminal Code refuses to seal joints in apartments located in the corner of the house. Meanwhile, the rooms are damp and fungus. The public utilities motivate the refusal by a lack of funds, allegedly the budget only provides for a major overhaul of the house. Repair of interpanel seams, what type of repair is it? seams panel house What about ongoing repairs?

Answer: Restoration of the interpanel space refers to a major overhaul.

Question: At whose expense should interpanel seams be repaired?

Answer: At the expense of the management company. It is possible for the Company to repay the rent for the amount of costs incurred by the tenant to repair the seams of the apartment in the house, which can invite a third-party company to repair the inter-panel joints of the apartment. Accordingly, the Criminal Code cannot refer to the lack of funds for the performance of work. To delay the deadlines for the completion of work, arguing that work cannot be carried out in winter, or for some other reason, this is all on the conscience of the head of the management company directly. As we know, seam sealing works can be carried out in any weather in temperature regime from + 30С to 15 С. True, in case of rain and sleet, it is better to transfer the work to a more favorable day.

Question: How to apply for seam repairs? How to write an application for sealing seams of panel joints?

Answer : First you need to prove the importance of repair. This will require the research of specialists of the Criminal Code.

• Valery. Who should eliminate defects in interpanel seams in a panel, apartment building, if the house is under the jurisdiction of the housing cooperative? Residents pay for current and major repairs monthly. The chairman of the housing cooperative refuses to repair the joints at the expense of management and shifts the repair to the tenant of the apartment. We are outraged. Who is right in this matter? How to seal interpanel seams in Podolsk?

Such and similar situations with interpanel seams, when, in fact, the seams are leaking and help is clearly required. You need to go to the management company and write an application. In the case of a good manager, they do their own work to eliminate these defects. Since this event is costly, you can offer this option. You hire a company, for example Assol (for Moscow and the Moscow region) and pay directly to the hired company. Then, by agreement with the Criminal Code, they deduct the full amount of your costs for sealing the external seams from the rent. This is the most acceptable way for everyone. The customer receives the work that he orders. The manager does not bear the costs at the time of work. Well, we get an order paid for at a commercial rate and not on a residual basis.

Sample application for repair of interpanel seams

The application to the supervisory authorities is written as follows:

We write the full name and address of permanent residence in the upper right corner.

Be sure to include your phone number and email address.

below in the middle is the text: "Statement of violation of the rules for the maintenance and repair of residential buildings";

How often should the management company inspect and repair interpanel joints?

In accordance with clause 4.10.2.9 of the Rules and Regulations technical operation housing stock, control over the state of sealing of the joints of the outer walls of prefabricated buildings and interfaces along the perimeter of window and door blocks should be carried out: the first - three years after sealing, the next - after five years.

In accordance with paragraph 4.2.1.7 of the Rules and Regulations for the technical operation of the housing stock, Panel joints must meet three requirements: water protection due to sealing mastics in compliance with their application technology, ensuring surface preparation; air protection due to sealing gaskets made of poroizol, gernit, vilaterm, tow, resin rope or other materials with mandatory compression of at least 30-50%; thermal protection through the installation of insulating packages.

Regulated opening of joints against temperature deformations: vertical 2-3 mm; horizontal 0.6-0.7 mm. At the joints closed type waterproofing is achieved by sealant; air protection - sealing materials with mandatory compression of 30-50%; thermal insulation - with heat packs or a device of "woofers", the width of which must be at least 300 mm. Butt joints that have leaks must be sealed from the outside with effective sealing materials (elastic gaskets and mastics) by specialists as soon as possible (in small volumes during the preparation of houses for winter).

Frequently asked questions about seam sealing:
/ MC does not fulfill its obligations where to apply?
/

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 seams are sealed 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 penetrates cold air.

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. technological methods for all types of slab 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 to that case 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, technology " tight seam"The use of vilaterm or foam is not combined, 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. On practice reinforced concrete slabs chipped inside and interpanel space 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. The thickness of the panel plate is 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, used by builders cement mortar cracking, 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 according to 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, which provides 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- this is a cosmetic or major repair of sealing interpanel seams, depending on the degree of destruction.

Cosmetic repair and sealing of seams in panel houses.

Redecorating and seam sealing 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, 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 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 roofing sheets poorly drawn 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.

In winter, the water freezes in interpanel seams and cracks in 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 according to different technologies, since 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 therefore, an individual selection of sealant is often necessary for better adhesion to the surface.