In this article we will talk about glue for tongue-and-groove slabs. How to choose the right glue, which brands are the most popular and how to use the glue.
Assembly adhesive for tongue-and-groove slabs
The name itself, assembly adhesive, gives an idea of its purpose. Glue for tongue-and-groove slabs is used for fastening GGP slabs together when laying them for the construction of partitions and other building structures. The peculiarity of assembly adhesive is that it can be used in both wet and dry rooms.
The second purpose of mounting adhesive is for frameless installation of drywall. Let me remind you that frameless installation is gluing gypsum boards (GKVL) to the wall, without assembling the frame.
The adhesive for tongue-and-groove slabs is distinguished by its high adhesion, combined with high ductility. Due to this, assembly adhesive is used not only for fastening slabs, but also for sealing seams between slabs and repairing the slabs themselves.
The binding agent of the assembly adhesive is construction gypsum. To increase adhesion and plasticity, the composition includes special plasticizers and polymer substances.
The approximate “lifetime” of the glue solution is 3 hours, the drying time is 5 hours, and the ability to adjust the masonry is only 30 minutes.
Construction adhesive is sold dry, in bags. To prepare the glue, it is diluted with water in the proportions indicated on the package. Usually this is 0.35-0.60 liters of water per 1 kg of mixture.
Types of glue for GGP
The main difference in the types of assembly adhesive is its frost resistance. According to this parameter, glue is divided into ordinary glue and frost-resistant glue. Frost-resistant adhesive, thanks to frost-resistant additives, can be used at sub-zero temperatures, even below 15˚C.
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Usage
Surfaces on which assembly adhesive is used must be dry, clean and dust-free. For better adhesion, the surface should be treated with a primer and allowed to dry.
The PGP boards themselves do not require additional processing or wetting with water.
The glue is diluted in a clean container according to the instructions on the package. The dry mixture is poured into the water, and not vice versa.
When installing partitions, glue is applied with a spatula to the adjacent grooves ( end sides) slabs. When installing, pressure is applied to the slab so that the glue is squeezed out of the seam. Excess glue is removed. The thickness of the joints between the tiles is more than 2 mm.
Brands
The most popular brands of mounting adhesive for tongue-and-groove slabs are:
- Volma, glue “VOLMA-Montazh” and “VOLMA-Montazh Moroz”;
- Knauf Perlfix, for installing PGP and gluing gypsum boards (GKVL);
- Perfekta "GYPSOLITE";
- "Rusean Plaster Block", from the manufacturer Rusean.
- High-strength “Forman41” from the Forman company.
- "PALADIUM PalafiX-403" from the Paladium company.
Conclusion
It is not recommended to replace glue for tongue-and-groove slabs with other mixtures. However, as a last resort, you can use tile adhesive instead of assembly adhesive. This assumption does not apply to gluing drywall.
To the question Laying tiles on plaster wall from tongue-and-groove blocks... specified by the author Staff the best answer is If we were talking about a kitchen, we could get by with rotband plaster (the tiles stick to it normally).
But the linear expansion of materials in the kitchen and humidity are insignificant.
In the bathroom it's a different matter. And when building up a wall, dissimilar materials will crack along the joint, making gouging out the grooves a hassle.
You want your tiles to last at least 20 years?
In general, screw the plaster mesh over the wall, stick waterproofing on the floor mesh at the bottom of the wall (a strip so that 10 cm extends over the floor and the wall) - at least a piece of roofing material.
Plaster over the mesh with a composition for wet rooms on a CEMENT basis (after all, in tile adhesive, the cement component and adhesion will be better) and sculpt the tiles to your health.
Plaster on a grid will hide the joint of the wall being built up and strengthen the wall itself.
This will of course be considered a perversion!! But this is a very reliable perversion))
Winds
(163432)
you're welcome.
twist the grid as close as possible.
Reply from 22 answers[guru]
Hello! Here is a selection of topics with answers to your question: Laying tiles on a plaster wall from tongue-and-groove blocks...
Reply from Eurovision[guru]
Of course you can.
Reply from Get dirty[guru]
This is how I have it all done.
Reply from -=chess=-[guru]
you can if you know how to do it - simply you need to dilute the tile adhesive on a primer without water and putty all the walls after drying, you can simply prime it and - you can glue the tiles onto a tongue-and-groove block
Reply from Sergey[guru]
The plaster must first be isolated. You can do the same tile adhesive plaster a plaster wall. Only first you need to make notches on it for good adhesion.
Reply from Yotas Shabanov[guru]
I would line the wall gypsum plaster, then tiles
Reply from Yergey Krishtofenko[guru]
First, build up the partition. Then reinforce it with strobe mesh. This is a fiberglass mesh similar to serpyanka, only sold in meter-wide rolls and without an adhesive layer. Take one with a cell of 5*5 mm. You shoot this mesh to the wall with a construction stapler. Like wallpaper, only with a 10cm overlap between the sheets. You don't have to shoot too accurately. The main thing is that it stays on the wall and the staples do not stick out from the plane of the wall.
Next, coat this mesh with gypsum plaster. Dilute it a little thinner than usual and spread a thin layer over the entire wall with a wide spatula.
After drying, plaster with the same gypsum plaster in the required layer.
Let it dry thoroughly. Next, glue the tiles.
You need to prime before the strobe, after the strobe and after plastering.
If something is not clear or additional information is needed. information - write :)
Reply from dancer[guru]
Who will stop you from doing this?)
but be sure to think about waterproofing (can you imagine what happens to drywall when it gets wet), choose high-quality glue (or better yet, use good cement, which is suitable for laying tiles, for example, “Master”) and remember the distance between the tiles. By the way, you can also build up the wall using cement mortar. Good luck!
Reply from Yokarificator[guru]
Waterproof the shower area and glue the tiles with reinforced adhesive. The wall can be extended.
Reply from Val Franco[guru]
You can do it without waterproofing, but then your shower will look like in the last photo...
Today there is a wide variety of building materials from which you can make high-quality and durable partitions in an apartment or private house. But often the choice of a specific material depends on the type of structure of the building. If the floor is reinforced concrete slabs between floors, then do interior partitions it is important to make it as light as possible.
The most optimal thing from which interior partitions can be made are light ones, but today there is considerable interest in such masonry material, like gypsum block and foam block. Various blocks are a new tool for quickly and inexpensive construction partitions in an apartment or private house, however, when working, nuances arise that must be observed in mandatory. First of all, let's look at how to lay gypsum blocks on the solution.
Choosing glue or solution
First of all, let's find out what solution is needed for laying gypsum blocks. If you don’t have enough money for a special gypsum-based acrylic adhesive, since it is quite expensive, then you can use regular tile adhesive or cement mortar in a ratio of 1:3 and add PVA glue to it. When thoroughly mixed, a very elastic and finely dispersed mixture is obtained, which is easily spread with a spatula. Its excess is squeezed out when the block is installed in place. It is much easier to work with the solution because its setting speed is much lower than gypsum glue, which can only be used for the first 60 minutes.
The question often arises: “How to lay gypsum blocks with glue?” when the need arises to build a partition. In fact, the glue is the best remedy for the construction of partitions from gypsum blocks. It hardens faster, which allows you to carry out in just one day complete installation with all necessary communications. And within an hour the surface can be easily cleaned by anyone mechanically, but this is usually not required if you used tongue-and-groove slabs.
Slabs or block
Before starting to describe the technology for constructing a partition, you should decide on the choice of material type and its advantages. A gypsum wall block is, as a rule, a perfectly rectilinear parallelepiped on all sides made from a mixture of gypsum, cement and plasticizer. good geometric parameters each product is acquired through production technology without the use high temperatures, as, for example, in the production of foam-gas-silicate blocks. But at the same time, gypsum blocks have better thermal conductivity and strength. High thermal insulation properties of the material were achieved through the use of sawdust, they also strengthen the structure of the block.
Good strength indicators made it possible to produce tongue-and-groove slabs, that is, blocks 8-10 cm thick and dimensions 66.7 x 50 cm with a groove and tongue for joining each other during installation. This is the main difference between slabs and blocks.
Gypsum tongue-and-groove partitions turn out to be perfectly smooth on both sides and during the installation process there is a low probability of curvature from the level even by a millimeter.
If we compare the price parameters, then laying partitions from tongue-and-groove slabs will cost a little more, because their cost is higher than the blocks. But one cannot fail to notice the benefits of working with them. The comb fits securely into the groove and at the same time forms quality connection all blocks together without the slightest deviation along any planes.
Although laying gypsum blocks will be cheaper, it will require more adhesive mixture. It is more difficult to align it on planes, which is fraught with curvature and distortions. The main thing in technology is compliance with the levels, so the wall made from the block turns out smooth and of high quality. But you should take into account the advantage - a wall made of gypsum blocks, as a rule, is thicker and has best characteristics strength and sound insulation. As for weight, of course, it is heavier, so hollow gypsum blocks can be used as an alternative.
Gypsum block installation technology
There are several technologies for laying gypsum blocks. Some people prefer to use glue, while others prefer to use a solution. In fact, you can use both methods, but you just need to do certain conditions. Before considering how to lay gypsum blocks on one or another means, you should familiarize yourself with general technology performing a full range of work.
To make it clearer how to lay gypsum blocks, see the photo below.
Interior partitions made of tongue-and-groove slabs must be smooth and durable. And to achieve this, it is necessary to follow the installation technology.
In order for the installation of the tongue-and-groove partition to be of high quality, it is necessary to allow the blocks to get used to the temperature at which they will be placed in place. To do this, it is recommended to bring all the material indoors and give it at least 1 day to get used to it. The block, due to the filler in the form of sawdust and plasticizer, expands slightly with increasing temperature, taking on its final shape. Compliance with this condition will eliminate the possibility of cracks occurring the next day after installation of the blocks.
The first step is to mark the location where the partition will be installed. Here you can use either a regular tape measure, a plumb line and a long level, or a laser device. When performing large-scale work, it is advisable and much more efficient to use a laser level.
Well, at home, when there is nowhere and there is no need to rush, it is quite possible to get by with familiar tools. A tongue-and-groove partition, as a rule, is perfectly flat on all sides, so no plaster or plasterboard is required. Unless, of course, you need it additional insulation. Therefore, when marking, the craftsman takes this into account and deviates from the original line a distance equal to the thickness of the additional finishing.
Installation of tongue-and-groove partitions should be carried out only on a high-quality and conscientiously prepared surface. Therefore, using a broom, brush and other tools, we carefully sweep the area where the partition will be installed. Also, the installation of partitions from tongue-and-groove slabs provides ideal flat surface. To obtain this purified mechanically the place is treated with concrete contact (acrylic or any other primer for concrete). It is recommended to do this in two layers for better adhesion of the leveling layer.
If a house has reinforced concrete floors, this does not mean that the surface is perfectly flat. In order to correctly lay gypsum blocks, deviations should not exceed more than 3 mm; in other cases, the surface must be leveled.
If the leveling layer turns out to be very thin, then a self-leveling mixture can be used. To do this, you need to install something like formwork and fill it with mortar, using a special roller with needles to roll out the mortar evenly over the entire plane.
If a tongue-and-groove partition is installed on an excessively curved surface, it can be leveled using a semi-dry screed. To do this, mix grade 500 cement and sand sifted through a fine sieve in a ratio of 1:3. Next, water is added and the solution is mixed until a uniformly moist (not wet) mixture is obtained. The process should not be described further, because it is not from this topic. After leveling with a semi-dry screed and completely drying (1-2 days), the surface must be treated again with soil (concrete contact). That's it, the surface is ready, you can start installation.
It is necessary to ensure that the partition made of tongue-and-groove slabs does not vibrate or resonate, thereby increasing the soundproofing properties of the room. To do this, it is necessary to provide a damping layer at the point of contact with the floor and wall. To accomplish this, you can use a cork backing tape 15 cm wide and 4 mm thick. It will compensate for all kinds of fluctuations and the degree of expansion of the partition when the temperature changes.
The tape can be installed using the same glue as the boards themselves. To do this, a certain amount of it is diluted; it is better not to mix it with water, because it will still become unusable even before laying the blocks. Using a spatula, spread a thin layer onto the prepared surface, carefully roll out the tape and press it to the base. You need to let the glue harden for at least 1 hour.
That's it, the damping layer is ready, you can install tongue-and-groove slabs for partitions.
For better orientation relative to the level, you can use physical slats, that is, attach guides to the wall and floor on both sides of the partition with dowels. This will minimize the likelihood of deviation during installation.
At the next stage, we will look at how to correctly lay gypsum blocks. For more reliable fastening of the slabs to each other and a better geometry of the wall, the slabs must be laid with the groove up. To do this, using the usual hand hacksaw The lower ridge is carefully removed. Here it is important to leave the surface perfectly flat, without protrusions, so that it fits tightly onto the damper substrate.
The mortar for laying gypsum blocks or glue should be spread using a spatula directly onto the tape and then onto the blocks. A little is required, because when joining, the excess will still be squeezed out by the weight of the slab.
Shrinking of each plate is carried out using a hammer with a rubber pad or through a block until the surfaces are in complete contact.
The tongue-and-groove slabs must be laid in a checkerboard pattern or with each row offset relative to each other by no less than 1/3 of its width. This will make the partition very durable and resistant to any impact.
The installation of tongue-and-groove partitions necessarily includes its fastening to the wall and floor using perforated corners. It can be attached to blocks with ordinary wood screws, to the floor and walls using dowels or anchors. Fastening should be done at least every other row or block in a row.
The video attached below will be an excellent instruction and clarification for the article.
Doorways in the partitions of their tongue-and-groove slabs
Installing a partition made of tongue-and-groove slabs cannot do without door or window openings. Moreover, if the height of the partition is no more than 3 m and only 1 row of slabs will be laid over an opening up to 80 cm wide, then lintels do not need to be used. It is enough to make a small half-frame with the width of the opening from wooden blocks and attach it to the slabs with self-tapping screws. Next, the next row of blocks is laid with periodic quality control of the surfaces using a level.
Tongue and tongue slabs are presented on the market today in wide range. However, Knauf products are one of the most popular. This is due to many factors.
Reviews of tongue-and-groove slabs
Knauf tongue-and-groove slabs are blocks rectangular shape, whose dimensions are 667x500x80 mm. To connect the elements together, a tongue-and-groove lock is used, which is made from building gypsum and binding components.
The described products are used for the construction of internal partitions and cladding the walls of houses. Consumers really like the versatility. Among the additional advantages of the described slabs, buyers highlight the opportunity to reduce the cost and labor intensity of laying partitions when using such products. Confirmation may be concrete example: tongue-and-groove slab replaces red brick in the amount of 20 pieces or 14 pieces of sand-and-a-half bricks.
Among other things, gypsum boards provide excellent thermal insulation. Consumers emphasize that the 40-cm can boast the same thermal insulation parameters concrete wall. Buyers quite often choose these slabs for the reason that they provide economic benefits. Installation can be carried out by gluing or using dry technology.
Plastering work is excluded; the front surface of the products has high quality. All you have to do is seal the seams and sand the base. There is no need to use special equipment during installation. Consumers emphasize that nails can be easily driven into Knauf tongue-and-groove slabs. In general, this material is easy to process: it can be planed, milled, and sawed. Therefore, the issue with laying the pipeline and electrical wiring disappears. After installation, according to consumers, the wall is immediately ready for painting, wallpapering and tiling. The partition occupies a smaller area compared to a brick one.
Why choose a tongue-and-groove slab from Knauf
If you are still undecided whether the described slabs are suitable for you, then you should consider their additional advantages. Among others, one can highlight a high sound insulation coefficient, which reaches 41 dB. When constructing openings within 0.9 m, there is no need to reinforce top part using a jumper beam. The formed walls are able to reflect noise waves, in addition, they act as a dielectric.
Knauf tongue-and-groove boards have the same acidity as human skin, and the material has no odor. It can be used to construct single and double partitions, the latter of which require a 4 cm air gap. Everything will depend on the noise protection requirements.
The plates are installed with high precision and connected to each other as firmly as possible. Internal walls able to bear weight kitchen cabinets, shelves and plumbing fixtures. In this case, there is no need to strengthen the surface. Knauf tongue-and-groove slabs have additional advantages, among which are:
- fire resistance;
- vapor permeability;
- environmental friendliness.
Technical characteristics of moisture-resistant solid slab 100 mm
As an example, before purchasing, you can consider Knauf moisture-resistant tongue-and-groove slabs. Among others, a 10 mm product should be highlighted, which has a gray or green. The raw material is G-5 gypsum.
The compressive strength is 5 MPa. The thermal conductivity coefficient can reach 0.29 W/m °C. As for the flexural strength, it is equivalent to 2.40 MPa. Fire resistance limit - 2.5 hours. The size of the slab is 667 x 500 x 100 mm. Sound insulation is kept at 41 dB. Such solid tongue-and-groove slabs "Knauf" are manufactured according to technical specifications 5742-007-16415648-98. The wholesale price is 250 rubles. per piece.
The mass of the plate is 38 kg. Its density is 1250 kg/m³. The volume of one block is 0.03 m³. The above-mentioned sound absorption coefficient is one of the best indicators among all categories of this material. Partitions constructed from the described slabs are most often used in rooms with high humidity. Among these are:
- kitchen;
- toilet;
- bathroom.
Main Features
The increased thickness of the product allows you to hide pipes, communications and wires of impressive diameter inside. This feature is relevant for bathrooms and other rooms where there is large number water communications.
Using such Knauf tongue-and-groove slabs, the price of which was mentioned above, you can no longer worry that sounds from the toilet or bathroom will disturb you in your living space. And the shelf will not collapse if you place it on such a surface. Partitions can be erected up to a height of 3600 mm, and no additional support frame is required. The manufacturer classifies these plates as premium.
Glue for PGP "Bolars"
If you decide to install Knauf tongue-and-groove gypsum boards, you should worry about the presence of special glue. As an example, we can consider the Bolars composition, which is sold in 20 kg bags. You will have to pay 215 rubles for such a volume of material.
It is a special mixture for installing plasterboard and gypsum fiber sheets, gluing mineral wool boards onto vertical surfaces. This glue can be used to seal joints. He has gypsum base and is made on the basis of highly effective additives.
Advantages of glue
Application of glue for tongue-and-groove slabs is carried out manually. Among the advantages of this composition should be highlighted:
- quick fixation of slabs;
- reasonable cost;
- highly elastic structure.
Thanks to the latter property, the glue is very convenient to use. It is sold dry and packaged in paper bags. The composition is manufactured in Russia, therefore it has an affordable price for the consumer. The material has a wide range of uses, because it can be used to install not only tongue-and-groove slabs, but also plasterboard and gypsum fiber sheets.
Glue characteristics
Adhesion is 1 MPa. Operating temperature varies from +5 to +40 °C. It is recommended to use the composition in bathrooms and living rooms. It is suitable for fastening insulation and gypsum tiles.
Before purchasing glue for tongue-and-groove slabs, it is recommended to calculate the required volume of material. Using the volume of one bag, you can install 35 slabs, which is true for products with dimensions that are 66 x 78 x 5 cm. The thickness of the seam should be 2 mm. You should prepare the amount of solution that you can produce in 40 minutes. The time for on-site correction of the product is 15 minutes.
Conclusion
PGP "Knauf" can be used not only for the formation of traditional wall partitions, but also for fastening products to ceilings. These canvases quite often act as acoustic barriers and are attached using direct hangers, combined and vernier clasps; you can use the technology that is convenient for you. If the base is load-bearing wooden floors, then Knauf self-tapping screws should be used. Subject to availability reinforced concrete floors You will need ceiling dowel-nails from the same manufacturer “Knauf”.
Interior wall partitions, in most cases, are not load-bearing structures in the house. They must have sufficient strength and good sound insulation properties. The design of the partition should easily withstand internal communications and hanging furniture.
In this article we will talk about tongue-and-groove gypsum (plasterboard) slabs (GGP). This material is used to create interior and apartment partitions. With a competent approach to construction, partitions made of tongue-and-groove gypsum boards (GGP) will meet the requirements listed above. But you need to focus on ensuring that the installation of tongue-and-groove slabs is competent!
If you neglect to comply construction technology, then the installation of tongue-and-groove partitions will end in the fact that instead of a durable monolith, the builder will end up with a shaky and uneven wall, ready to collapse at any moment.
Kruchenkov User FORUMHOUSE, Moscow.
I have a bathroom partition at home made of tongue-and-groove slabs. Apparently, when a hole was made in it for sewer pipe, something went wrong. Now, if you shake this structure by the edge with your hand, you can hear the blocks hitting each other.
On FORUMHOUSE you can find a lot similar examples. And if the partition was originally folded contrary existing technology, then the defects can be corrected only by completely destroying the structure.
But don’t be afraid, because the technology for constructing wall partitions from PGP is quite simple. And if you treat it with due attention, the impression of the work done will be very positive.
AlexDo User FORUMHOUSE
I worked at a construction site. The buildings of the old foundation were reconstructed. So, all the partitions were made from gypsum tongue-and-groove slabs, the work was a pleasure. Just right as a partition. Easy and quick to install. The walls are smooth. After puttying, they are ready for painting or wallpaper. The fasteners in the slab hold well. Sound insulation is also normal. But if anything happens, you can make a sheathing, lay mineral wool and finish it with clapboard or panels.
A little about the practicality of GPP
Manufacturers of gypsum boards guarantee that this material provides reliable fastening standard elements modern interior. This means that gypsum plasterboard partitions can withstand loads comparable to those on walls made of other standard materials. Wall cabinets, household appliances, suspended ceilings– all this can be easily mounted on a tongue-and-groove gypsum partition. Expand functionality wall partition from PGP it is possible by installing metal-plastic water pipes(with a diameter of no more than 16 mm) and electrical wiring elements.
Grachev68 User FORUMHOUSE
You can also install doors in the tongue-and-groove without extras, install electrical wiring without any problems, and hang shelves and TV more reliably.
Tongue-and-groove slabs - what are they?
Standard PGPs come in two types: solid and hollow. The construction of solid slabs is more durable, but this material is significantly heavier than its hollow counterpart. For this reason it is not recommended
used as part of partitions mounted on the floor with
wooden joists.
Hollow PGPs provide high sound insulation (43 dB) without overloading the floor structure. Some people believe that in internal space Hollow slabs can allow all kinds of insect pests to live and multiply intensively. But such an opinion has not yet found serious confirmation.
Conventional (solid and hollow) tongue-and-groove slabs are used to construct partitions or wall cladding in rooms with dry and normal humidity levels. If the partition is planned to be installed in a room with high level humidity, then preference should be given moisture resistant boards, having a peculiar greenish tint. Keep in mind that such PGPs are slightly heavier than regular solid products.
Preparatory work
List of tools for working with tongue-and-groove slabs:
- Marking cord:
- Hacksaw with a wide blade and large teeth;
- Roulette;
- Spatula;
- Drill with a nozzle for stirring mixtures;
- Bucket;
- Construction level and plumb line;
- Rubber mallet;
- Square;
- Screwdriver.
In accordance with the recommendations of the manufacturers, the length of the wall partition made of PGP should not exceed 6 m. The maximum height of the structure is 3.5 m. It is possible to increase these parameters, but the maximum strength of the partition is ensured only if the specified dimensions are observed.
The base for the wall made of tongue-and-groove slabs must be level, stable and completely free of dust. If the floor is concrete and there are differences in it exceeding 3 mm, then before starting installation work it needs to be leveled; create a leveling layer. Suitable for this mortar based on sand and cement (mortar grade - not lower than M50).
Alignment of the wall from PGP.
The solution is applied to a clean, damp floor. To obtain an ideal surface, you can create some kind of formwork and fill it with mortar precisely at a horizontal level. After complete drying, the base must be coated with a concrete primer.
If it is possible to do without a leveling layer, then the base under the future partition, as well as the junction of the partition with the enclosing walls, are covered with 2 layers of primer.
If the partition is mounted on a wooden floor, then the base must be reinforced with a strong, even beam.
Kirill147 User FORUMHOUSE
According to the technology, gypsum tongue-and-groove panels require a flat base - a screed or a separate non-sagging beam under the partition.
When the base is ready, you can mark the locations of the partitions and doorways. This is done using lacing, a plumb line and a level.
Installation of the PGP can be carried out at temperatures from -10 to +30°C. Construction material Be sure to bring it into the room in advance. This will help him “get used” to the right temperature conditions and will insure the partition from deformation (when the temperature changes, the slabs may slightly change their volume).
Installation of elastic gasket
To ensure that temperature changes and deformation of the load-bearing elements of the building do not lead to the destruction of the partition over time, the structure made of PGP should be isolated from the base and adjacent walls with a special elastic (damper) tape. Damper tape for PGP protects the wall from mechanical damage and increases the soundproofing qualities of the partition. Elastic tape is a special cork backing(at least 75 mm wide), which we will glue to the base and walls in accordance with the markings made. The boards and tape are fixed with the same mounting adhesive.
Consumables intended for installation work ( building mixtures, gaskets, dowels, hangers, etc.), should be selected based on the recommendations of the GGP manufacturer. At sub-zero temperatures, installation of the PGP is carried out using a frost-resistant adhesive gypsum mixture.
Apply a thin layer of glue to the prepared surface using a spatula. The tape is rolled out from above and pressed lightly with your hands. The glue sets within one hour. After this period, you can begin building the partition.
Installation of PGP
The damper gasket under the tongue-and-groove slabs is covered with a layer of mounting adhesive, onto which the lower, first row of the PGP is laid. The plate can be positioned with the groove up or with the groove down - it doesn’t matter. But if the groove is at the bottom, then the ridge will not have to be sawed off to make the slab level. It is allowed to install the top row of slabs vertically (if this becomes necessary due to material savings).
When laying the first row, the vertical groove of the tongue-and-groove slab and the base of the floor are coated with glue. Special attention care should be taken to maintain vertical and horizontal levels. The slabs should be set using a mallet.
The thickness of vertical and horizontal seams should not exceed 2 mm. After installing the next slab in its place, use a spatula to remove excess glue at its joints.
Additional elements for filling gaps between solid slabs, walls and openings are easily cut from PGP using a hacksaw.
The relative displacement of vertical joints in the PGT masonry must be at least 10 cm. This is prerequisite to ensure structural strength.
At the intersection of two partitions made of gypsum tongue-and-groove slabs, as well as in the corners, the slabs are laid in such a way that their joints overlap each other. Tongue-and-groove elements that interfere with proper dressing should be cut off with a hacksaw.
After the partition is ready, it external corners needs to be reinforced with perforated metal profile and putty.
People often ask whether it is necessary to glue tongue-and-groove partitions with serpyanka. Yes, internal corners glued with serpyanka and coated with putty.
Fastening the partition to the wall
The strength of the connection of the tongue-and-groove partition to the walls and base is ensured by the installation additional elements: mounting angles, fittings or hangers. It is more convenient to use mounting angles or hangers. After all, they are attached to the slab using ordinary self-tapping screws, and to the walls using dowels. The slabs of the 1st, 3rd, and 5th rows are attached to the side walls. It is possible more often, but there must be several (at least three) fastenings. A strong base connection is created for every second slab.
During installation, direct hangers can be installed directly into the groove of the slab, having previously cut them to the required dimensions.
Between the top row of masonry and the ceiling of the room you will need a technological gap of at least 1.5 cm. It must be left and foamed polyurethane foam. After drying, excess foam must be cut off and the seam must be puttied. Between the top row and the ceiling additional fasteners is installed with the same frequency as below.
Creating Doorways
For the construction of door or window openings whose width does not exceed 90 cm, masonry can be made without additional reinforcement. In this case, an auxiliary structure made of wooden beam, which is removed after the slabs of the top row are laid and the mounting adhesive has set.
If the opening width exceeds 90 cm, then a wooden or metal lintel should be installed above it. The ends of the lintel should protrude 50 cm beyond the opening on each side. This will ensure uniform distribution load on the partition.
The door (window) frame is attached to the partition using frame dowels and mounting foam.
Inter-apartment partitions made of PGP
Apartment partitions made of PGP, unlike interior partitions, are made double. A technological gap of 4 cm is left between the plates. First, one partition is erected, then the second. In order to enhance sound insulation, the space between the slabs is filled with soundproofing material, mineral wool, etc.
Installation of communications
The design of partitions made of PGP allows the installation of hidden electrical wiring. Gypsum boards strong enough to allow vertical grooves to be made into them and thick enough to install distribution boxes. Technological cavities inside hollow PGP can be used as horizontal grooves.
If the channel chosen for laying the wire is expanded with a crown with a diameter of 45 mm, then the cable will pass through it without difficulty. The main thing is not to clog the side hole of the slab with glue during installation work.
To make it more convenient to pass the wire through horizontal channels, blind mounting holes can be made in the side surface of the partition.
Some doubt the safety of vertical gating of plaster walls. But, according to manufacturers (and the builders themselves), there is nothing to be afraid of.