Encyclopedia of Fire Safety

Technology for fastening partitions from pgp. Do-it-yourself installation of tongue-and-groove slabs. Construction of the last row of tongue-and-groove blocks

There are quite a lot of building materials available for the construction of interior partitions. But not all of them are suitable for use in multi-storey buildings. Partitions should be as light as possible in order to minimize additional load on the supporting structures of the building. Thus, the choice is narrowed down to masonry materials such as tongue-and-groove slabs and blocks.

The construction of partitions inside already finished housing has certain specifics. It will be necessary not only to accurately mark the location for the construction of the additional wall, but also to prepare a foundation for it, create a vibration-damping layer at the junction points, provide for fastening the blocks to the walls, and properly organize doorways or arches. The ideal geometry and impeccable quality of masonry will be ensured by the masters of the Repair Prestige company. They have to solve the problem of constructing partitions from tongue-and-groove slabs and blocks at almost every facility where redevelopment of premises is planned, and they have mastered the technology to perfection. In addition to the short deadlines and excellent quality, in addition to concluding an agreement with our company, we can add very affordable prices for this type works

Price list for work on installing partitions from tongue-and-groove slabs

Unlike “flying brigades,” the Repair-Prestige company does not disappear anywhere after the commissioning of the facility. We have been on the market for almost 10 years, and our long-term warranty allows customers not to worry about problems that may arise during the operation of the partitions, which, however, is unlikely.

Blocks or tongue-and-groove slabs?

First of all, it is worth deciding what material to build the partitions from - gypsum blocks or tongue-and-groove slabs. From the point of view of composition, they are identical, but they have different shapes, due to which the technologies for their installation performance characteristics and the cost of partitions vary.

The gypsum block is a regular parallelepiped with smooth edges and right angles. The ideal geometry of products is achieved thanks to a special production technology in which high-temperature treatment is not used. The blocks have high strength characteristics and excellent thermal conductivity.

A tongue-and-groove plate is the same block with a thickness of 8 to 10 cm, but equipped with grooves and ridges for joining between structural elements during installation. The dimensions of the slabs used for the construction of interior partitions are usually 66.7 x 50 cm. Thanks to the tongue-to-groove joining, the partitions are absolutely even; displacement of the plates relative to each other is an extremely rare phenomenon.

A partition made from blocks will be somewhat cheaper than one made from tongue-and-groove slabs, which cost more. And this is only the case when the installation is undertaken by professionals who are able to accurately align the blocks along the planes and fix them without distortions or overruns. glue mixture. Such a wall is also thicker, which means the sound insulation will be higher. The downside is that the partition will be heavier due to the thickness of the blocks (hollow blocks can be used as an alternative). A wall made of tongue-and-groove slabs will cost more, but its construction does not require a perfect eye and high professional skills.

Preparing for the construction of a partition

First of all, you need to use laser level mark the walls and floor, marking the boundaries new design. High-quality installation partitions are only possible on a carefully prepared horizontal surface. Therefore, you should start by cleaning the site where the wall will be erected. Before pouring the area for blocks or slabs, the base is treated with a concrete primer (acrylic, concrete contact or other composition for a similar purpose). It is recommended to apply two layers (the second after the first has dried).

Even with concrete floors their deviation from the horizontal plane is possible. Therefore, the surface is checked by level. Differences of more than 3 mm are leveled cement mortar. A thin platform can be filled with a self-leveling mixture, installing a kind of formwork and using it for uniform distribution composition of a roller with needles. Significant differences are eliminated using a semi-dry screed. It is prepared by mixing cement 500 and fine sifted sand in a ratio of 1:3, adding water until a wet mass is obtained. The mass is laid out on the prepared base and checked for level. After drying (1-2 days), the finished site is treated with a primer, just like the floor slab.

To compensate for thermal expansion and vibrations, install cork backing(thickness 4 mm, width 150 mm). This damper tape can be installed with the same adhesive on which the slabs will be mounted.

Photo: redevelopment and installation of partitions.



Partitions made of tongue-and-groove slabs. Apartment 1 Partitions made of tongue-and-groove slabs. Apartment 2 Partitions made of tongue-and-groove slabs. Flat 3


Partitions made of tongue-and-groove slabs. Apartment 4 Partitions made of tongue-and-groove slabs. Apartment 5 Partitions made of tongue-and-groove slabs. Apartment 6

Our profile is QUALITY renovation of apartments, offices, cottages! You can see this for yourself by visiting the Portfolio section. We have created more than 30 photo reports and this is not the limit, our photo gallery is constantly updated.

Laying partitions

The laying of slabs and blocks is carried out staggered, moving away from the coincidence of vertical seams by at least 1/3 of the length of the product. The first row of blocks is placed directly on the prepared site. The slabs are placed with the groove up; before installing the first row, the ridge is sawed off. Using a spatula, glue or mortar is spread onto the tape (for the first row and blocks adjacent to the wall), then onto the block itself. The seating of structural elements is achieved by tapping with a hammer through a block or a special hammer with a rubber pad. The excess that is squeezed out adhesive composition cleaned up.

Every second row and every second slab (block) of the first row is attached respectively to the walls and floor by means of perforated metal corners. Wood screws are used for fastening to blocks and slabs; dowel screws or anchors are used for walls and floors. The gap between the top row and the ceiling is foamed and leveled.

Installation of tongue-and-groove slabs is carried out using technology that is used in Lately professional builders and home craftsmen increasingly. These products have low weight, reliable locking connections and convenient sizes. All this allows you to install them without special effort, carrying out the redevelopment of premises as required by personal preferences.

Types and features of tongue-and-groove products

Before you begin installing tongue-and-groove slabs, you need to understand what types of these products are on the market today. They are silicate and gypsum, the latter are made from the material of the same name, to which a plasticizing admixture is added. For the production of silicate, lump and also quartz sand, which are pressed and kept in an autoclave.

Which slabs to choose

If you want to give your walls heat-insulating qualities, it is better to prefer gypsum boards; they do not allow sound to pass through. However, silicate ones are able to withstand higher mechanical loads and also absorb less moisture. Tongue-and-groove slabs, which can be easily installed with your own hands, are environmentally friendly, so they can be used for furnishing residential premises. The materials are not flammable, do not rot, do not emit harmful substances into the atmosphere and are not deformed. On sale you can find solid ones that can reduce the weight of masonry by 25%. If we talk about sizes gypsum boards, then they are equal to 500 x 667 x 80 mm. But silicate ones are more compact: 250 x 500 x 70 mm. Once you have dealt with all the supporting structures, you can begin laying tongue-and-groove products, but this must be done before installation finishing coating on the floor and finishing work.

Preparation of tools and materials

Installation of tongue-and-groove slabs is carried out after preparing a certain set of tools and materials. These products can be installed in the center of the room, as well as against a wall that goes outside the building or into a cold room. By forming double partitions, you can hide wiring, other systems and communications.

To divide a room into separate zones, you can use partitions, the height of which starts from 80 cm. For installation you will need:

  • building level;
  • adhesive composition;
  • anchor dowels;
  • gypsum mortar;
  • putty knife;
  • screwdriver;
  • cement-sand mortar;
  • Staples;
  • felt seal;
  • primer;
  • hacksaw;
  • rubber mallet.

Preparing the site

Installation of tongue-and-groove slabs begins with site preparation. To do this, you should check the evenness of the walls and floor where the products will fit. If there are defects such as sagging, then they should be removed by grinding. The walls and floor should also be freed from cracks and depressions, filling the errors with a cement-sand mixture.

As soon as the bases are dry, they should be coated with a primer. If you decide to install a partition during the process of ongoing repairs, then the contact lines should be marked on the floor and walls. After finishing coat cut along the markings so that the base can be seen. For paint, wallpaper, decorative plaster You cannot install slabs; this applies to laminate, parquet and linoleum. If the surfaces have decorative coating as ceramic tiles, then it does not need to be removed, but the surface is first checked for strength.

The tongue-and-groove slab must be installed correctly; to do this, a cord should be pulled between the walls over the entire area, moving it 30 cm from the floor surface. This will allow you to control the vertical placement of the products. Along the contact line it is necessary to stick a sealant, the width of which must correspond to the thickness of the slab. In the role of this material You can use bitumen-impregnated felt or a cork backing.

Working on the first row

Installation of a tongue-and-groove slab cannot be called difficult work, however, it is necessary to approach this issue extremely carefully. To install the starting row of slabs, it is necessary to cut off the lower ridges using a hacksaw. Glue is applied to the seal, which must be on a vertical and horizontal surface. The first slab is installed on the side where it will adjoin the wall. The perforated bracket is inserted into the groove. The bracket should protrude a few centimeters above the slab. It is fixed to the wall with self-tapping screws, or this is true when you are working on a concrete base.

The slab should be facing upward with the groove, it is leveled and pressed to the base, tapping with a mallet. In the place where the second slab will adjoin, it is necessary to install a piece of bracket and secure it with dowels to the floor. If it turns out that this product is installed unevenly, then the rest will repeat the angle of inclination. In this situation, it will not be possible to level the masonry; they will interfere locking connections. This explains the need to level the first slab of the bottom row. The composition is applied to the side grooves and ridges so that the seams between the plates are not thicker than 2 mm. Excess mixture should be removed with a spatula, checking the masonry with a building level. A bracket is installed at the bottom and fixed anchor dowels to the floor. Each subsequent product must be installed after the adhesive composition has set on the previous one.

Installation of the following rows

Installation of walls made of tongue-and-groove slabs involves displacement of the seams in the second and subsequent rows. To ensure this condition, the slab must be cut in half. At the end and beginning of the row, staples should be fixed on the cuts. This must be done in the place where the sections adjoin the wall. The glue should be more liquid; it should be applied to the bottom and side grooves of each product. It is important at this stage to check the vertical and horizontal of the masonry. The next row is installed only after the glue has set in the second row.

Formation of the last row

Usually not accompanied by difficulties. However, it is important to pay attention to the entire process Special attention. For example, the top row should not be adjacent to the ceiling. Approximately 1.5 cm should be left between the plates and the horizontal surface. To do this, staples are installed in the upper grooves of the final row using glue and screwed to the ceiling with dowels. After installation is complete, the gap can be filled with foam, the excess of which is cut off after hardening.

Features of installation of Knauf brand slabs

Knauf tongue-and-groove slabs, the installation of which requires compliance with certain nuances, can be installed by a home craftsman independently. For example, when preparing, it is important to ensure that the subfloor where work will be carried out is stationary, level and stable. If there are unevennesses that exceed more than 10 mm, then it is necessary to form a leveling layer; this can only be done under the partition.

Before starting manipulations, the surface is cleaned of dirt and construction waste, as well as oil stains. To prepare the mixture, pour the dry composition into a clean plastic container with water. The liquid should be at room temperature. The composition is mixed using a drill with an attachment or an electric mixer. The solution is left for a few minutes and then mixed again. It is recommended to cook it in portions, one of which you can finish in the next half hour.

Such a tongue-and-groove gypsum board, which is often installed independently, can be installed in one of two ways. The first involves the use of glue, which is applied to concrete base. This method allows you to get a rigid fastening. The composition is applied to the floor and walls in an even layer, and the average consumption for an 80 mm slab will be approximately 2 kg per square meter. If the thickness of the partition increases to 100 mm, then the glue consumption will be equal to 2.5 kg.

The second method involves fastening to walls, ceilings and floors through an elastic cork gasket. This method allows for higher sound insulation, especially for impact noise such as door slams and knocking. Such products are laid with the ridge or groove up. More practical installation with a groove on top, since this makes it easier to lay the glue than trying to spread it on the ridge. If the ridge is located on top, then it should be removed using a hacksaw with large teeth. Sometimes elements are removed using a roughing plane until a smooth surface is achieved.

Features of installation of tongue-and-groove slabs of the Volma brand

The Volma tongue-and-groove slab, which is installed using the same technology as described above, is a product total area which is equal to 0.33 m 2. The plate is made from hydrophobic and plasticizing additives, which are complemented by lithium technology during the manufacturing process. Products are intended for forming partitions in rooms and buildings for various purposes with a normal and dry microclimate.

You can control the resulting plane by applying a rule or a regular strip to the wall at different angles. If necessary, the plane can be adjusted until the glue sets. It is important to ensure that the slabs are glued together at four ends. Any excess compound that appears must be rubbed down with a spatula before sealing the seam. You should not begin laying the second row until you have measured the remaining gap for which the section is being prepared. The additional element will become the beginning of a new row. This will allow the vertical seams to spread apart.

You will be able to install tongue-and-groove slabs with your own hands; the tips presented in the article will help you with this. From them you can learn that the slabs must be laid down from the sides and from above; they must be used for this only so as not to damage the blocks. This rule should not be neglected, since otherwise it will not be possible to achieve a tight connection between the tongue and groove.

Adhesive for tongue-and-groove slabs "Fugen"

If you decide to purchase glue for installing tongue-and-groove slabs, then you can pay attention to the “Fugen” mixture, which is offered by the Knauf company. It should take approximately 1.5 kg per square meter. If joints between sheets of drywall are sealed, the consumption will be 0.25 kg. This mixture is a dry composition, which is made on the basis of gypsum and polymer additives.

The solution is intended for sealing seams and cracks. To prepare the dry mixture, pour it into a container with cold water. For 1.9 liters of water you will need 2.5 kg of composition. After evenly distributing the dry mixture, it is necessary to hold it for 3 minutes and mix until a homogeneous mass is obtained. Its consistency should resemble thick sour cream.

Conclusion

If, when laying a partition, you plan to make a window or doorway, then you need to think about the technology for attaching the slabs above it. If the opening has a width not exceeding 80 cm, then the product can be installed on a box or temporary support. This is true provided that there is one row of blocks per opening. If the width is greater than the specified value or there are several rows, then it is necessary to form a strong jumper.

If there is a need to zone a room, then one of the options for creating a partition is to use tongue-and-groove slabs.

It's relatively new construction material, which allows you to simplify the construction of the partition as much as possible, its installation is simple and quick.

The specified building material has the form monolithic slabs, which have precise geometric parameters, they are connected to each other using a tongue-and-groove lock. For the manufacture of such slabs, building gypsum is used, they can be regular or moisture resistant.

Since building gypsum is used to create such boards, they can “breathe”, do not burn, do not emit harmful substances, and are odorless, therefore they are ideal for the construction of interior partitions and decorative ones.

Standard plate size 667x500x80 mm, they have area 0.333 cm2, weight about 29 kg.

To create one square meter plaster partition You only need 3 slabs, which makes installation of partitions simple and quick. Unlike, there is no need to mount the frame and filler

The advantage of this material is that it turns out smooth and smooth surface, you just need to seal the seams and you can glue wallpaper, paint or lay tiles.

Installation

Before installing the slab partition, you need to check the condition of the base. It must be strong, horizontal and motionless. If the old screed does not meet these requirements, a new one is made. The installation technology resembles

Differences in the height of the base should not exceed 1 cm; if this is not achieved, then it should be leveled.

To install a tongue-and-groove partition, you need to have the following tools and materials:

  • tongue-and-groove slabs;
  • adhesive composition;
  • gaskets, they can be felt or cork;
  • putty;
  • construction mixer or drill with a special attachment;
  • hacksaw;
  • level;
  • plumb line;
  • rule;
  • measuring instruments;
  • rubber hammer;
  • putty knife;
  • wedges

Before starting the installation of slabs, the base must be cleared of debris, dust, after which it is covered with a layer of primer.

Marking the future partition can be done after the primer layer has dried.

Mark the doors, and to facilitate execution installation work, you can tighten the cord.


Markings are applied to the walls and ceiling
, for which a plumb line and level are used.

Now you can prepare the solution, to do this, fill the container with water and gradually add the dry mixture, constantly mix everything well, do this with a mixer or a drill with a special attachment. The composition should sit for a few minutes and you can begin installing the slabs.

You need to prepare the glue in small portions so that you have enough for 30-40 minutes of work.

You can lay the slabs directly on the floor, then you will have a rigid fastening. The glue is carefully applied to horizontal and vertical surfaces, average to install 1m2 of wall you will need 1.5-2 kg of glue.

When using the second method, the slabs are laid on a special cork pad, which increases the sound insulation of the walls. For this use tape 7.5 cm wide, which is glued along the perimeter of the partition.

The gasket is mounted with glue, its horizontalness is checked and it must be given 20-30 minutes so that it is well fixed.

The slabs can be laid either up or down with the groove, but it is more convenient to place it up, since it is easier to apply glue in the groove than on the ridge.

In this case, on all slabs used for installation of the first row, it is necessary to remove the ridge; do this with a chisel or hacksaw, and then level the plane with a plane.

Laying slabs is carried out similarly to laying brick or cinder block: glue is applied to the base, the slab is installed, pressed down with a rubber hammer and its horizontalness is checked. If leveling is necessary, wedges can be used.

During installation next rows, glue must be applied to both horizontal and lateral sides so that the slabs are securely connected on all sides.

The seam thickness is about 2 mm, all excess glue that has protruded beyond the slab is removed using a spatula.

For wiring, grooves are made in such partitions, and to install sockets, holes are drilled with a special attachment mounted on an electric drill.

If pipes need to be installed large diameter, Then install a double partition.

Soundproofing device

Manufacturers indicate that sound insulation coefficient standard tongue-and-groove slab 80 mm thick, 43 dB, which is a sufficient indicator to create comfortable conditions in the room.

In practice, this figure is often lower, therefore, to increase the sound insulation characteristics of such a structure, it is recommended to carry out additional sound insulation.

For this purpose, materials that have good soundproofing characteristics.Special membranes Can be glued directly to the wall surface.

To protect the room as much as possible from noise, such membranes glue on both sides of the wall. This allows you to increase the sound insulation coefficient up to 30 dB.

If you have the opportunity to create wide walls, then create a double partition Insulation is laid from tongue-and-groove blocks and between the walls, usually mineral wool.

This method allows you to obtain high sound insulation characteristics and reliably protect the room from extraneous noise.

Constructing a strong and reliable gypsum partition with your own hands requires experience in construction work, if it is not there, follow the following expert advice:

  • during the installation of partitions made of gypsum boards, no need to rush. Some people indicate that a partition from tongue-and-groove slabs can be made in a day. It is better to let the first row harden well, and then move on to installing the next rows;
  • Please note that when cutting slabs Quite a lot of dust is generated, so be prepared to have something to clean it with;
  • the strength of the material allows you to hang shelves or a TV on such a wall, but they can no longer bear the weight of the cabinet.

Conclusion

If the soundproofing characteristics of the wall are very important to you, then they can be increased by creating double partitions, between which insulation is laid or the wall can be covered with sound-absorbing materials.

Follow the instructions, and you will be able to create an interior partition in your house with your own hands, which will have high strength and soundproofing characteristics. Or perform decorative

Useful video

See the video for installation technology for VOLMA tongue-and-groove slabs:

In contact with

You are doing a major renovation of your apartment with redevelopment or have bought a new building with an open plan, you will definitely be faced with the task of installing several partitions. If you have the opportunity to hire workers, this article will help you control them; if you do the repairs yourself, in the article I will show you step by step how to install a gypsum tongue-and-groove slab (GGP) or a tongue-and-groove partition with your own.

Two methods of installing the PGP partition

It is clear that any interior partition does not hang in the air, but is adjacent to the floor, walls and ceiling of the room. Installation of a tongue-and-groove slab using technology involves two types of partition installation depending on the connection method:

1. Elastic connection (fastening). Elastic fastening involves installing a layer of soundproofing material between the edges of the partition and the walls, ceiling, and floor. Available soundproofing material is a traffic jam. It is important to understand that elastic fastening is done where the customer, that is, you, needs to improve the soundproofing qualities of the partition. There are no other criteria for flexible installation of the PGP. 2. Monolithic connection (fastening). Monolithic fastening assumes direct contact of partition slabs with walls, floor, ceiling through assembly adhesive.

Material for installation of partitions made of GGP (tongue-and-groove slabs)

For work you will need:

1. Gypsum tongue-and-groove board (GGP). Manufacturers: Knauf, Volma, etc. In the size of the GWP, we are interested in its thickness. Slabs with a thickness of 80 and 100 mm are common. The number of slabs is calculated from the area of ​​future partitions with a 10% margin for undercuts. GWP dimensions:
  • 667x500x80 mm to calculate 3 slabs per meter: 28 kg/1 slab.
  • 667x500x100 mm for the calculation of 3 slabs per meter: 37 kg / 1 slab.
  • 900x300x80 mm to calculate 3.7 slabs per meter: 24 kg/1 slab.

Note: If the installation of a tongue-and-groove slab is carried out in a room with normal humidity, a standard GGP slab is purchased. For partitions in wet areas, we buy a hydrophobized (moisture resistant) GGP board. Moisture resistant Knauf stove marked with a green stripe.

2. You will need an installation gypsum glue. It is sold in 25 kg bags. For bathrooms, you can use tile adhesive. 3. For elastic fastening of the tongue-and-groove partition to the walls and ceiling of the room, you can buy special brackets. Such staples are marked C2 (for 80 mm PGP) and C3 (for 100 mm PGP). The brackets can be replaced with direct hangers (PP 60/125), used in the installation of plasterboard structures.

4. Only for elastic connection! Soundproofing pad is required. These are strips 100-150 mm wide, preferably made of cork. 5. If the floor is uneven, you will need a dry cement mixture to level the floor where the partition is installed.

What thickness of GGP to choose

Interior partitions made of PGP are made in one layer. Technologically, it is impossible to make a straight PGP partition higher than 3600 mm and wider than 6000 mm. Apartments usually do not have such walls, so there are no restrictions on the use of GGP slabs for apartments.

Installation of a tongue-and-groove slab in an apartment

You need to choose the thickness of the slabs for the partition according to its size. The larger the partition, the thinner the slab. For partitions in a new building, it is better to choose 100 mm GGP slabs. For cladding the walls of a balcony and a partition in a bathroom, 80 mm GGP slabs are sufficient.

Tool for installation of the PGP partition

For work you will need the following tool:

  • Saw: for cutting slabs;
  • Drill or hammer drill: For fastening slabs and mixing mortar. Mixer attachment for drill;
  • Notched spatula width 200 mm;
  • Simple spatulas: 100 and 200 mm;
  • Horizontal level 500 mm and 1500-2000 mm long.
  • Plumb line for marking the partition;
  • Rubber hammer for upsetting slabs;
  • Clean container for mixing the solution;
  • Clean water for solution and washing of instruments. Rags.

Installing a tongue-and-groove slab with your own hands - step by step

  • Prepare a place for installing the partition. Remove debris and prime the junction areas of the partition.

  • The base of the partition must be horizontally level. If the base slope is visible during measurement, it is leveled with cement mortar. After the solution has dried, it is primed.
  • Mark the partition along the floor, walls, and ceiling. Use a plumb bob or laser level to mark.
  • When the partition is elastically (soundproofingly) connected to the floor, a soundproofing strip is glued to the installation site of the partition using mounting adhesive.

  • GGP slabs can be installed either with the groove up or with the groove down. However, for reliable adhesion, installation with the groove facing up is recommended.

  • Therefore, the ridge of the slabs of the first row needs to be cut off with a saw. Do not use power tools for cutting; the amount of gypsum dust will be unreasonably large.
  • The cut slabs in the partition row should not be narrower than 100 mm. Therefore, before installation, do a dry installation and try the slabs in place. If the last slab in a row is less than 100 mm, trim the first slab in the row.


  • Install the first row of slabs with glue. The quality of the entire partition depends on the horizontality and verticality of the first and two subsequent rows, therefore, we actively use the building level to control the installation.

  • Starting from the first row, with an elastic connection, place reinforcing corners. The corners are attached to the PGP with standard self-tapping screws. To attach the corner to the walls, we use dowels and screws.

  • The number of staples on one side of the partition cannot be less than 3. That is, in an apartment with ceilings of 2700, we install brackets after the first, third and fifth rows.
  • We look at the photo to see how the mounting adhesive is placed in the groove of the bottom row.
  • The slabs are installed with a tenon in a groove with glue. We hammer the slab with a rubber hammer. Remove excess glue squeezed out by the top plate with a spatula.

  • We constantly monitor the horizontality of the rows and the verticality of the partition.

Connection of the PGP partition to the ceiling

The connection of the PGP partition to the ceiling requires a separate paragraph.

Connecting the partition to the ceiling

Proper connection of the partition to the ceiling is more difficult than to the wall. The last row of PGP slabs is cut at an angle. The angle should be “facing” you. The distance from the bevel to the ceiling should vary from 10 to 300 mm.

During installation last row The sloping void between the ceiling and the slab is filled with mounting adhesive.


The installation of the tongue-and-groove slab is completed. After installing the partition made of tongue-and-groove slabs, inspect it and check the vertical level of the partition. Use the remaining glue to fill, if any, the voids between the plates. Remove any excess glue squeezed out from the seams.

Next, after the glue has hardened, the joints of the partition with the walls and ceiling are glued with reinforced tape and puttied. The partition itself is finished together with the walls of the room, usually plastered several times. Next, according to the repair plan (paint or glue the wallpaper or something else).

The installation of doors in a partition made of PGP, as well as the laying of communications in PGP partitions, will be discussed in the following articles. Subscribe by registering on the site.

Tongue-and-groove slabs are rectangular gypsum parallelepipeds designed for constructing internal non-load-bearing partitions in rooms with varying degrees of humidity. There are hollow and solid versions of their execution.

KNAUF tongue-and-groove slabs

One of the most famous manufacturers gypsum board is produced by the German concern KNAUF. The brand's products are available in three sizes: 667x500x80, 667x500x100 and 900x300x80.

Material of tongue-and-groove slabs

The basis for the production of KNAUF tongue-and-groove slabs is gypsum binder of two grades: G-4 or G-5. The material does not support combustion and does not contain toxic components, which allows its use in hospitals and kindergartens. He doesn't spend electricity and resistant to sudden changes temperature regime. A high degree of vapor permeability is characteristic of all gypsum products. The material lends itself perfectly machining and has no specific odor.

installation of partitions from tongue-and-groove slabs. Photo

Technical description of KNAUF boards

The KNAUF tongue-and-groove plate has the form of a rectangular parallelepiped, the design of which provides for a special high-precision tongue-and-groove connection. The finished product has the following specifications for all sizes:


Installation of partitions using KNAUF slabs

Do-it-yourself partition made of tongue-and-groove slabs. Video instruction

Partitions made from KNAUF tongue-and-groove slabs are constructed using the designer method, by precisely connecting a groove on the supporting side and a tongue on the joining side, with gluing of the joining surfaces. The adhesive mixture can be used as glue for gluing drywall " Pearlfix", produced by the KNAUF concern. Installation of tongue-and-groove slabs is carried out with precise adherence to rows in vertical as well as horizontal planes.

Work on the construction of partitions should be carried out after completion of production load-bearing elements premises, but before laying the finished floors. This period coincides with finishing works indoors, mainly during the cold season. Temperature indoors should not be below +5 °C. Humidity should correspond to dry or normal conditions. Before use, the slabs must undergo acclimatization, that is, adapt to indoor conditions. To do this, they must lie inside for at least 4 hours.

The permissible length of the partition is 6 m, and the height is 3.6 m. If it is necessary to erect a longer or higher partition, it is made up of separate fragments, each of which has a separate attachment to load-bearing structures using a special frame.

Volma tongue-and-groove slabs (solid)

Volma solid slabs have the shape of rectangular parallelepipeds with a tongue-and-groove system, manufactured using injection molding technology. The main purpose is the construction internal partitions in rooms with three types of humidity according to SNiP II-3-79. Moisture-resistant boards contain hydrophobic additives and special plasticizers. The moisture-resistant version has a characteristic green color.

The material of the stove does not support combustion and does not contain substances harmful to the human body. They have high sound insulation and do not have a specific odor.

installation of walls made of Volma tongue-and-groove slabs. Photo

Technical characteristics of Volma slabs

The surface of the slab and the geometric accuracy of the design exclude plastering work when decorating a room. The solid slab is produced in one standard size - 667x500x80. The weight of one plate is 28 kg.

Volma tongue-and-groove slabs (hollow)

For the construction of partitions that require reducing the load on the base of the floor, Volma hollow plasterboards are provided. Their main application is the installation of interior structures in modern panel houses. This is due to the maximum load that the floor slabs can withstand. Like their solid counterparts, the slabs can be standard and moisture-resistant. The standard size remains the same: 667X500X80 mm. Often a hollow slab is used for cladding the outside of a room. The weight of a standard hollow slab is 20 kg, moisture resistant - 22 kg. The material properties of hollow slabs are similar to their solid counterparts.

Installation of partitions from Volma slabs

Installation of a partition made of Volma tongue-and-groove slabs is carried out by precise alignment of grooves and ridges on parallelepipeds, followed by gluing them. Any adhesive for gluing drywall, including that recommended by the manufacturer, can be used as an adhesive mixture for Volma tongue-and-groove slabs. Volma-montage" Installation of the partition structure is carried out in the following order:

Partition made of Volma tongue-and-groove slabs. Video instruction

Electrical installation in tongue-and-groove slabs

Electrical wiring in tongue-and-groove slabs is carried out by laying wires in pre-made grooves. The depth of laying the grooves has a limitation: it should not exceed 40 mm for a slab thickness of 80 mm, and 50 mm for a slab width of 100 mm. The wires are secured using alabaster or drywall glue. The landing sockets for undercutters should also not exceed the specified depth. Their arrangement is possible in a mirror image on both sides of the partition into a through hole. But in this way the noise-absorbing properties of the structure are lost. For additional insulation of electrical wiring in tongue-and-groove slabs, corrugated tubes are used.

technology for installing tongue-and-groove slabs. Photo

Finishing walls from tongue-and-groove slabs

Like any other building surface, partitions made from tongue-and-groove slabs require all types of construction and finishing work. The advantage of such a partition is the absence of additional putty manipulations preceding decorative work. The finishing of a tongue-and-groove partition includes: painting the surface, laying ceramic tiles and natural stone, and wallpapering.

Laying ceramic tiles on tongue-and-groove walls

The process of laying ceramic tiles on plasterboard is similar to gluing tiles to drywall:


Due to the moisture-absorbing properties of gypsum, the finished surface should not be disturbed for three days.

Wallpapering walls made of tongue-and-groove slabs

Before gluing the wallpaper to the tongue-and-groove partition, you should make small finishing Painting works . This could be the application of a thin layer of ready-made plaster, for example, “ Rotband" Or covering the surface with a layer of finishing fine-grained putty. Before applying putty, the surface is treated with a primer deep penetration. After the putty has dried, the surface is ready for wallpapering. It is not necessary to treat the base with soil. Gluing wallpaper to partitions made of tongue-and-groove slabs is carried out according to the standard procedure, with glue applied both to the wallpaper and to the base of the surface being glued.

Painting walls made of tongue-and-groove slabs

The tongue-and-groove slab is also painted after finishing surfaces fine-grained putty. After the finishing layer has dried, it is carefully rubbed with a fine sanding mesh under the light of a construction lamp. This is necessary to avoid irregularities and roughness invisible to the eye. The surface to be painted should be treated with a primer and given time to dry. After this, you can apply one or more layers of paint as needed.

Before any type of finishing of the tongue-and-groove partition, it must be thoroughly cleaned and treated with a primer.

Do-it-yourself installation of tongue-and-groove slabs. Video

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