Construction sealing materials are intended for primary sealing - when a panel building has just been erected, as well as a secondary type - for carrying out restoration repair work on insulating seams.
A number of specially developed products that have a certain type and chemical composition are used as sealing.
They are presented in mixtures, solutions, foam, are resistant to temperature changes, frost, are characterized by water-repellent properties, protect against extraneous noise and sounds, retain heat, the stability of the slabs in relation to the structure, and also prevent the appearance of fungi.
How mastic and other materials are used for sealing seams, the correct choice, purpose, manufacturers and average price for them can be found in the presented article.
Why treat seams in a panel house?
Sealing interpanel seams is the process of filling voids formed between the slabs. If this procedure is ignored, then moisture and cold air will penetrate through the cracks, and condensation will form. By eliminating such defects, you will not only insulate the room, but will not allow dampness and mold to penetrate into your home. And the latter is very harmful to our health. In addition, peeling of wallpaper, blackening of walls and other troubles are possible, so the aesthetic side will also suffer.
Sealing is done not only at the construction stage; it is necessary to periodically restore the seams.
What are the causes of depressurization? First of all, errors in the design and construction itself. In addition, it is very important to choose the right materials. For example, a combination of seals with different degrees of elasticity will not give the desired result. If you decide to use special self-adhesive tapes, then you should not apply tension; it is better when they sag a little. Plus, an additional adhesive sublayer should be applied from below. This will keep the stress inside the sealing material to a minimum.
The best for our clients
If there is a need to buy materials for sealing seams and joints, you have come to the right address. The online store contains modern compounds that have been tested and have a quality certificate. The cost is determined by the type and characteristics of the sealant, so the price is available upon request.
Customer reviews will help you verify the reliability of the company as a supplier. You can see the products at exhibitions in Moscow. You can also request advice from managers. Do you want to seal the interpanel seam efficiently and for a long time? Then you should buy sealants from the catalog.
Foam, mastic, tape - exploring the variety of materials
Today there are many sealants for interpanel seams, and they have different types. Special mastics, silicones and polyurethane foam are extremely popular. The choice of one or another material depends on the width of the cavity. If the seam is narrow, then preference should be given to silicones, but wider and deeper recesses are treated with polyurethane foam. It's best to use one that doesn't expand, otherwise you'll have to cut off the protruding parts. And this is already extra labor costs, and taking such a step is not always easy, especially when it comes to external work on the upper floors.
In addition, the foam is afraid of ultraviolet rays, so it must be covered, but the finishing layer must be in the same plane as the slabs, that is, the frozen composition will need to be cut out with a small recess. Expandable material should only be used when working with very large seams. In this case, it is applied in two layers.
Documents required for work
Sealing of apartments above the 2nd floor is carried out using the industrial mountaineering method. That is, specialists will need free access to the roof to deploy equipment.
To do this, you need to submit an application and a package of documents to the house management organization (Dez, Tsh, Zhsk, Zhilischnik). As a rule, we deliver all the documents ourselves; only a signature is required from the owner.
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Package of documents:
- Application for repair of interpanel seams;
- Sample letter of guarantee for access to the roof (guarantee on behalf of our company);
- Certificate of industrial climbers.
Features of sealing technology
Sealing of seams in panel houses is divided into primary and secondary, i.e. during the construction of a building and during repairs. When carrying out the initial work, a sealant is first placed in the seams, or they are treated with special materials, and then a layer of waterproofing follows. It is very important that all components are resistant not only to precipitation, but also to temperature changes. It is recommended to re-treat joints in the house no later than 7 years from the date of construction. The fact is that absolutely any mastic has a service life of no more than 15 years.
The secondary sealing technology differs depending on the condition of the seams. If they do not have significant defects and the mastic has retained its properties, then it is quite enough to simply replace the outer layer. But when the joint is severely damaged, then all old materials should be completely removed and replaced with new ones.
When carrying out such work, you should adhere to certain rules. If defects occur in horizontal joints, the seams of at least three vertical rows must be treated with sealant. If the integrity of the vertical seam of the longitudinal facade in the house is damaged, then all vertical cracks and adjacent horizontal cracks will have to be repaired. And when it is necessary to carry out restoration work on the end side, do not forget about all the joints between the longitudinal walls and the end panels, as well as the entire facade.
In addition, the mastic must be sufficiently plastic, because the interpanel seams in the house may change their dimensions somewhat due to shrinkage, concrete creep, thermal expansion, or under the influence of various loads. If the material is too hard, depressurization will occur and restoration work will have to be carried out again. The mastic should also be laid in a layer at least 2 times thinner than the joint, at least for gaps with an opening of more than 1 cm.
Facade adhesive-sealant black
CEMMIX Facade adhesive-sealant is a special sealant based on hybrid polymers for various joints.
More details
CEMMIX facade adhesive-sealant is a high-tech modern material that has the following important characteristics:
- high adhesion;
- thixotropy;
- durability and strength;
- elasticity and flexibility;
- resistance to ultraviolet radiation, humidity, frost, temperature changes, chemicals, vibrations, mechanical damage;
- increased mechanical stability;
- resistance to the formation of mold, fungi, moss and lichens on the surface of the sealant;
- compatibility with different types of paints and varnishes;
- ability to recover after deformation.
In addition, it should be noted that CEMMIX Facade Adhesive-Sealant is an environmentally friendly, harmless material that does not have an unpleasant odor. It is easy to use, can be applied in a wide range of temperatures (including at subzero temperatures and on wet surfaces), and quickly cures under the influence of moisture from the air.
An additional advantage should be considered a wide selection of colors, because CEMMIX Facade Adhesive-Sealant is available in eight shades.
We seal the seams in the house ourselves
Now is the time to study the technology of sealing interpanel seams. Let’s try to create instructions that are understandable even for “dummies,” although it should be noted that professionals should do this kind of work. Firstly, they have special equipment to work at heights. Secondly, our comfort and savings depend on quality, since the room will release less heat in winter, and even health, because the negative impact of fungi and mold on the human body has long been proven.
Advice from the experts
In old houses and apartments there are almost always areas contaminated with mold. To get rid of it, it is recommended to carry out anti-mold treatment of the fireplace before sealing. The result will be more effective if you further dry the walls with a heat gun.
In addition to sealing interpanel joints, it is worth paying attention to other sources of heat loss: old glass windows, low-quality doors, an uninsulated roof, an uninsulated attic (in a private house). Through such zones, up to 20% of heat can be lost, and additional sealing of windows and doors, as well as interpanel seams, will seriously improve the indoor microclimate and make living more comfortable!
How to seal seams in a house on your own - step-by-step diagram
Step 1: Preparation
In order for the sealing of interpanel seams to proceed as efficiently as possible, you should prepare all the necessary equipment.
We will need a metal brush, spatula, vacuum cleaner, sponge, spatula, broom. From the material you need to purchase the sealant itself, insulation, foam, sand and cement. Next, it is very important to prepare the room. All furniture, if we are talking about a residential building, or other items are taken out so that the room is empty. Then we should remove the old coating from the walls, so we will free up access to the seams. Having removed large elements, we clean the room of dust; in this case, a vacuum cleaner will come in handy. We carefully go through all the joints. If we are talking about secondary sealing of panel seams, then we remove the old material from them. Don’t forget to carry out wet cleaning after this, otherwise dust from the air will settle in the most inappropriate places and this will negatively affect the quality of the work. Then we wait until the surface to be treated dries, and then we degrease it with a special product.
Step 2: Insulation
The key to success is high-quality cavity insulation. If the seams are large enough, they are first filled with polyurethane foam. Before it has time to completely harden, a layer of thermal insulation is laid, which most often takes the form of a very dense hollow tube. Thanks to its excellent elasticity, there will be no problems with installation.
Insulation of interpanel seams
When a building suffers from heat loss, the old joint must be opened. Typically, interpanel joints are affected by mold and moisture flows into them. Our team acts in such situations as follows:
- the layer of mastic is removed and the insulation that has lost its functionality is removed;
- in the presence of mold damage, antiseptic treatment is carried out;
- the seam is foamed with polyurethane foam;
- Vilaterm is installed as insulation;
- the seam is sealed with sealant.
Repair without opening the joint
The cheapest option is to seal the panel seams without opening them. It is better if this method is used only if the joint coating is in good condition. First, the seam is examined. Using a spatula, remove the old mastic. If the cement composition has retained its reliability, you can save money and perform cosmetic repairs. However, in most cases this solution does not lead to a better result.
Then do the following:
- The cleaned seam is treated with deep penetration primer. It is better if it contains fungal additives.
- If necessary, the damaged areas of the seam are sealed with mortar.
- Afterwards, the entire joint is covered with mastic with water-repellent properties. In the store you can find various formulations that consist of one or two components. Many experts prefer two-component polyurethane-based compounds.
The components of the solution should be mixed with a mixer. In this case, you must follow the instructions on the packaging. The front edge of each panel is covered with construction tape so that it is not stained with mastic.
A number of nuances that everyone should know
As we mentioned earlier, if you decide to line the ceiling with plasterboard or any other material, then in this case there is no need to think about how to putty the seams on the ceiling. However, this method of getting rid of ceiling unevenness is not highly reliable, so it is better to choose materials that are best suited for this type of work. Expanding cement, for example, is suitable.
Before sealing ceiling joints with cement, you will need to acquire the following materials:
- NTs grade cement is used for sealing deep joints. This material is capable of expanding during the process of its hardening, which leads to filling the entire space of the gap between the plates.
- To eliminate fairly wide seams, insulating materials with satisfactory density will be required. Quite often, polyurethane foam is used as such a material.
- Elastic, starting and finishing putty.
- Polyurethane foam will be necessary to eliminate wide cracks. This material adheres well to the primed base and, after expansion, can completely fill the gap.
If, after cleaning the surface, you find a very narrow and, at the same time, deep joint, then you will need to carry out a number of such actions. Having chosen a sealing material of suitable thickness, take the sealant and apply one layer of this composition to one of the sides of the seal. Next, such material is pushed into the gap between the plates with a spatula, and care is taken to ensure that there is room left for further filling with any mixture.
This is one of the methods for deciding how to seal the seam on the ceiling between the slabs. It is similar to the technology by which tiles are laid on an adhesive mortar, only in our case, expanding concrete is used. The cracks are closed with such a solution, with the obligatory leaving of small recesses, since the material we use has the property of expansion. In addition, decorative plaster will be applied at the end.
Coating the joint with elastic putty begins after the solution has completely hardened and the groove is prepared for the next finishing step. To carry out the above work, it is best to use not one spatula, but several, having a working surface of different widths. This will make the workflow easier to some extent.
A large spatula is needed for scooping up putty from the container, and a narrow one is used to remove the putty little by little from the large spatula and apply it to the seam being restored. Thanks to this process, it is possible to completely align all the cracks with our ceiling.
At the same time, do not forget about the timely removal of excess putty. Next, it is necessary to reinforce the working areas. At the final stage, after all the seams have been restored, it is strongly recommended to putty the entire ceiling to achieve maximum evenness of the entire surface.
Now we can assume that the question of how to seal the seam in the ceiling has been resolved. If all the work is carried out according to the technology specified by us, the ceiling will delight you for a very long time.
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Results
I am glad that recently more and more residents have begun to realize that with high-quality work on sealing and insulating seams, they will receive comfortable housing without mold and mildew.
from - Assol this is a 15-year warranty on materials, fixed price: from 450 rubles / meter, permanent specialists. As a result: we eliminate moisture from the street, heat loss through cracks and cold spaces; we eliminate the causes of condensation on the walls; we treat problem areas with mold and mildew; improving...
