Tongue-and-groove plates (PGP): characteristics and installation. Pros and cons of tongue-and-groove plates

When redeveloping an apartment, craftsmen are increasingly using blocks with supporting and butt surfaces (groove / tongue). Due to these structural elements, the parts of partitions or walls are firmly interconnected, constituting a monolithic plane. The material is practical, versatile and quite affordable in terms of cost. Therefore, it makes sense to consider in more detail all its pros and cons during construction work.

Before discussing whether tongue-and-groove slabs have the pros and cons inherent in any building material, let's briefly consider their design features. First of all, they are rectangular blocks, each of which has a groove on one side, and a comb on the other for joining parts. GWP standard overall parameters:

Thickness - 80 or 100 mm.
Height - 300; 400 and 500 mm.
Width - 600; 667; 800 and 900 mm.

The most popular among developers are blocks with dimensions of 500x667 mm. The soundproofing parameters for all models are the same and are about 41-42 dB.

Varieties of blocks according to the material of manufacture

It is immediately worth noting the fact that the GWP is absolutely fully compliant with the standards environmental safety. According to the type of material used, they are divided into:

Gypsum– made with the use of gypsum and cement. All kinds of additives may be present in the composition to increase strength and hydrophobicity.
silicate- are made on the basis of quartz sand and quicklime. The modern installation of partitions made of tongue-and-groove slabs cannot do without this innovative building material, because it has high mechanical strength.
Shungite- a unique building material made of shungite has full protective properties against electromagnetic and radioactive radiation.

The table will help to correctly evaluate the parameters of gypsum and silicate blocks.

GWP formats

Full-bodied are monolithic building blocks, the weight of which reaches 30 kg. This factor determines their strength.
Hollow - contain longitudinal holes in the body, due to which the weight of the product is much lower than that of full-bodied counterparts. The difference in mass is 25%, and this is easy installation and transportation.

The latter are especially good for the implementation of intra-apartment bulkheads, since they do not exert excessive loads on the floor. Practice shows that hollow blocks also have the best heat and sound insulation characteristics. However, to fix heavy objects, do not use , and dowels are butterflies.

Both types can be made both in a standard version and in a moisture resistant one. In the latter case, additives are added to the mixture that reduce the degree of water absorption. For marking hydrophobized blocks use green color mixtures.

What are the pros and cons of tongue-and-groove rectangular slabs of silicate or gypsum

Subject to the fulfillment of all regulatory requirements, GWP are used in the construction internal walls in buildings of any height. However, buildings may different purpose and fire resistance level.

technological device interior partitions from tongue-and-groove slabs has a number of advantages:

Strength- in compliance with the installation rules practically excluded. The material is resistant to changes in temperature or humidity, which eliminates deformation. These qualities are inherent even in ordinary blocks, and even hydrophobized elements can be confidently used in arranging a bathroom.
Security– GWP components do not burn and do not conduct electricity. Despite the absence of active impurities in the composition, the material is not subject to decay.
Soundproofing- the elements are mounted so tightly that there are no voids in the seams. This guarantees a high degree of sound absorption, and a double partition will not only increase the level of noise protection, but also make it possible to hide all communications in the wall.
thermal insulation- if we compare a standard gypsum fiber board with a thickness of 80 mm with a concrete one, then its level of thermal insulation characteristics corresponds to 400 mm of concrete.
Easy installation- the laying process eliminates "wet" work, the assembly is carried out using a special glue. The presence of professional skills is not necessary - the blocks are assembled as parts of the designer.
Affordable cost- compared to other materials, redevelopment using GWP is cheaper, and if low labor costs are also included here, then the question of choice is obvious.

Negative points

Like all building materials, tongue-and-groove slabs have their pros and cons, as evidenced by consumer reviews. Now we will talk about the negative aspects of their use.

Some developers note moderate sound absorption of the assembled partitions. However, in some cases this is due to a violation of the installation technology, when the stage that prescribes the installation of elastic soundproofing gaskets between the ceiling and the walls is neglected. Let's take a look at a few more points below:

I attribute increased fragility to PGP walls - for uniform distribution internal stresses a perfectly flat floor surface is required at the installation site of the blocks. Permissible level differences should not exceed 2 mm per meter.
Some users point to the high price of the material and the mixture for the preparation of glue - as a rule, imported products have impressive numbers on the price tag. The issue is removed by the acquisition of a domestic product, which is in no way inferior to foreign counterparts.

Cost of materials

The high price of dry adhesive mixtures in comparison with concrete solutions is compensated not only by the economical consumption of mounting adhesive. The high strength of the joints and the minimum labor costs during preparation also justify its cost.

Hollow gypsum board Leroy Merlin standard size 667x500 mm and 80 mm thick will cost 108 rubles apiece, moisture-resistant material will already cost 131 rubles. Similar product from domestic manufacturer "Volma" sold for 140 and 180 rubles, respectively.

Waterproof blocks of the same size cost an average of 40-50 rubles more. But building blocks with a thickness of 100 mm will cost 100 or more rubles.

The cost of a full-bodied silicate material starts at 45 rubles, but its dimensions are different from gypsum-fiber GWP - 498x115x248 mm and 498x70x248 mm. Many mistakenly believe that affordable price associated with low quality, but this is not the case - everything is explained by the availability of raw materials.

Recommendations for the installation of interroom partitions from tongue-and-groove slabs from leading craftsmen

No one will argue that working with high-quality and easy-to-install material is a real pleasure. Even a novice developer can easily start redevelopment using block elements.

Considering the pros and cons of using tongue-and-groove plates, a few tips from experienced craftsmen do not interfere:

With this building material you can work with ambient temperature not less than +10°C. Before installation, the blocks should be kept indoors for several hours.
Planes that will be in contact with the partition must be leveled and cleaned. Before installation, wall and floor markings are made.
All types of slabs are installed with the ridge down, while in the bottom row it is cut off with a hacksaw. top notch and side surfaces smeared with glue, after which the first and subsequent rows are collected. Each part is tapped with a rubber mallet for secure fixation.
Each subsequent row should be shifted in relation to the previous one according to the principle of brickwork.
Partitions are additionally attached to the walls and floor with metal plates, as well as an angular profile. The fastening must be resistant to corrosion.
For high-quality sound insulation between the partition and adjacent surfaces, an elastic gasket made of felt or cork is laid.
The finished plane does not need additional processing. After the adhesive has dried, immediately proceed to the finishing work.
Attachments are fixed with dowels. If the wall is made of hollow blocks, then "butterflies" are used. For full-bodied fit standard plastic dowels.

Practice shows that one worker is able to lay about 30 m² of wall per day. Of course, for a novice builder, the results will be more modest, but repair is not a race. In our case, the main thing is the result, namely: a smooth and durable structure.

Interior wall partitions, in most cases, are not load-bearing structures in the house. They must have sufficient strength and good soundproofing properties. The design of the partition should easily withstand intra-house communications and hanging furniture.

In this article we will talk about tongue-and-groove gypsum (gypsum) slabs (GWP). This material is used to create interroom and interroom partitions. With a competent approach to the construction, partitions made of tongue-and-groove gypsum boards (GWP) will meet the requirements listed above. But you need to focus on the fact that the installation of tongue-and-groove plates is competent!

If you neglect to comply building technology, then the installation of tongue-and-groove partitions will end with the fact that instead of a solid monolith, the builder will get a shaky and uneven wall, ready to collapse at any moment.

Kruchenkov FORUMHOUSE user, Moscow.

At home I have a partition in the bathroom made of tongue-and-groove slabs. Apparently, when a hole was made in it under sewer pipe, Something went wrong. Now, if you shake this structure by the edge with your hand, you can hear the blocks knocking against each other.

On FORUMHOUSE you can find a lot of similar examples. And if the partition was originally built contrary to the existing technology, then defects can be corrected only by completely destroying the structure.

But do not be afraid, because the technology for building wall partitions from PGP is quite simple. And if it is treated with due attention, then the impression of the work done will be very positive.

AlexDo FORUMHOUSE user

I've worked in construction. The buildings of the old fund were reconstructed. So, all partitions were made of gypsum tongue-and-groove plates, work is a pleasure. As a partition - that's it. Easily and quickly fit. The walls are even. After puttying, they are ready even for painting, even for wallpaper. The fasteners in the plate hold well. Noise isolation is also normal. But if anything, you can make a crate, lay mineral wool and trim with a trailer or panels.

A little about the practicality of GWP

Manufacturers of gypsum boards guarantee that this material provides secure fastening standard elements modern interior. This means that GKL partitions can withstand loads comparable to those on walls made of other standard materials. Wall cabinets, Appliances, stretch ceiling- all this is mounted without problems on a tongue-and-groove gypsum partition. It is possible to expand the functionality of a wall partition made of PGP by installing metal-plastic water pipes(with a diameter of not more than 16 mm) and elements of electrical wiring.

Grachev68 FORUMHOUSE user

And you can also put doors without extensions in the tongue-and-groove, lay the electrician without problems, hang shelves and TV more reliably.

Tongue-and-groove slabs - what is it

Standard GWP are of two types: full-bodied 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
use as part of partitions mounted on the floor with
wooden joists.

Hollow GWP provide high sound insulation (43 dB) without overloading the floor structure. Some people believe that all kinds of pests can live and multiply intensively in the internal space of hollow slabs. But such an opinion has not yet been seriously confirmed.

Ordinary (solid and hollow) tongue-and-groove slabs are used for partition walls or wall cladding in rooms with dry and normal humidity levels. If the partition is planned to be placed in a room with a high level of humidity, then preference should be given to moisture-resistant plates that have a peculiar greenish tint. Keep in mind that such GWPs are slightly heavier than regular full-bodied products.

Preparatory work

List of tools for working with tongue-and-groove plates:

Marking cord:
Hacksaw with a wide blade and large tooth;
Roulette;
Putty knife;
Drill with a nozzle for stirring mixtures;
Bucket;
Building level and plumb;
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 maximum strength partitions are provided only if the specified dimensions are observed.

The base for the wall of the tongue-and-groove slab must be even, stable and completely free of dust. If the floor is concrete, and there are differences on it exceeding 3 mm, then before starting installation work it is necessary to align it; create a leveling layer. Suitable for this building mixture based on sand and cement (grade of solution - not lower than M50).

Alignment of the wall from the GWP.

The solution is applied to a clean dampened floor. To obtain an ideal surface, you can create a kind of formwork and fill it with mortar clearly at a horizontal level. After complete drying, the base must be coated with a primer for concrete.

If you can do without a leveling layer, then the base for the future partition, as well as the junction of the partition to the enclosing walls in 2 layers, are covered with a primer.

If the partition is mounted on a wooden floor, then the base must be reinforced with a strong, even beam.

Kirill147 FORUMHOUSE user

According to the technology, gypsum tongue-and-groove panels require an even base - a screed or a separate non-flexible beam under the partition.

When the base is ready, you can mark the location of the partitions and doorways. This is done with the help of lacing, a plumb line and a level.

Installation of HGP can be carried out at temperatures from -10 to +30°C. Building material must be brought into the room in advance. This will help him "get used" to the right temperature regime and insures the partition against deformation (when the temperature changes, the plates may slightly change their volume).

Installation of an elastic gasket

To ensure that temperature fluctuations and deformation of the bearing elements of the building do not lead to the destruction of the partition over time, the HGP structure should be isolated from the base and adjacent walls with a special elastic (damping) tape. The damper tape for PGP protects the wall from mechanical damage and increases the soundproofing qualities of the partition. The 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. Plates and tape are fixed with the same mounting adhesive.

Consumables intended for installation work (building mixtures, gaskets, dowels, suspensions, etc.) should be selected based on the recommendations of the manufacturer of the PGP. At negative temperatures installation of PGP is carried out using a frost-resistant adhesive gypsum mixture.

Glue with a spatula thin layer applied to the prepared surface. The tape is rolled out from above and pressed lightly with your hands. The adhesive sets within one hour. After this period, you can start building the partition.

PGP installation

The damper gasket under the tongue-and-groove slabs is covered with a layer of assembly adhesive, on which the lower, first row of the GWP is laid. The plate can be positioned with a groove up or a groove down - it does not matter. But if the groove is at the bottom, then the comb will not have to be sawn off so that the plate becomes even. It is allowed to install the upper row of plates vertically (if necessary, due to material savings).

During the laying of the first row, the vertical groove of the tongue-and-groove plate and the base of the floor are smeared with glue. Special attention attention should be paid to the observance of vertical and horizontal levels. The plates should be planted with a mallet.

The thickness of vertical and horizontal joints should not exceed 2 mm. After installing the next plate in its place, use a spatula to remove excess glue at its joints.

Additional elements for filling the gaps between solid slabs, walls and openings are easily cut from the GWP using a hacksaw.

The relative displacement of the vertical joints in the laying of the PGT must be at least 10 cm. This is a prerequisite for ensuring the strength of the structure.

At the intersection of two partitions made of gypsum tongue-and-groove slabs, as well as at the corners, the slabs are laid in such a way that their joints overlap each other. The tongue-and-groove elements that interfere with the correct dressing device should be cut with a hacksaw.

After the partition is ready, its outer corners must be reinforced with a perforated metal profile and puttied.

It is often asked whether it is necessary to glue tongue-and-groove partitions with a sickle. Yes, internal corners glued with sickle and smeared with putty.

Fastening the partition to the wall

The strength of the junction of the partition from the tongue-and-groove to the walls and the base is ensured by the installation additional elements: mounting angles, fittings or hangers. It is more convenient to use mounting corners or suspensions. After all, they are attached to the plate with the help of ordinary self-tapping screws, and to the walls - with the help of dowels. Plates of the 1st, 3rd, and 5th rows are attached to the side walls. It is possible more often, but there should be several (at least three) mounts. A strong abutment of the base is created for every second slab.

Direct hangers during installation can be installed directly into the groove of the plate, having previously cut them to the required dimensions.

Between top row masonry and the ceiling of the room will need a technological gap of at least 1.5 cm. It must be left and foamed mounting foam. After drying, the excess foam must be cut off, and the seam must be puttied. Between the top row and the overlap, additional fasteners are installed at the same frequency as below.

Creating doorways

For door or window openings, the width of which does not exceed 90 cm, you can masonry without additional reinforcement. In this case, an auxiliary structure made of wooden beam, which is removed after the top row slabs are laid and the mounting adhesive has set.

If the width of the opening exceeds 90 cm, then a wooden or metal jumper should be installed above it. The ends of the jumper should protrude beyond the opening by 50 cm on each side. This will ensure an even distribution of the load on the partition.

The door (window) frame is attached to the partition using frame dowels and mounting foam.

Interroom partitions from PGP

Inter-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 plates is filled soundproof material, mineral wool, etc..

Installation of communications

The design of partitions made of PGP allows you to install hidden wiring. Gypsum boards are strong enough to make vertical grooves in them and have enough thickness to install junction boxes. Technological cavities inside hollow GWP can be used as horizontal strobes.

If the channel selected 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 plate with glue during installation work.

In order to make it more convenient to pass the wire through horizontal channels, non-through mounting holes can be made in the side surface of the partition.

Some doubt the safety of vertical chasing of plaster walls. But, according to the manufacturers (and the builders themselves), there is nothing to be afraid of.

What is not offered to us today construction markets, including for the construction of internal partitions, and yet quite recently the consumer had to choose only between drywall and brick. Fortunately, since those times, technology has gone far ahead and gave us tongue-and-groove plates that can greatly facilitate the "life" of any builder. But first things first.

What are tongue-and-groove slabs?

Tongue-and-groove slabs are a building material with a groove and tongue (hence the consonant name), as well as a smooth, even surface that does not require additional plastering.

Features of these boards include:

ease of installation;
low cost;
almost perfect geometry;
high strength;
no need for additional plastering of the surface built with their help.

Dimensions, types and main technical characteristics.

To date, tongue-and-groove slabs (PGP) can only be purchased in one standard size: 667 × 500 × 80 mm. However, this does not mean that all such plates have identical specifications, because there are GWP: corpulent and hollow, moisture resistant and standard. Consider what is common and different between them.

quantity in a pallet, sq. m. and cube. m. - 32, 3 and 37.5 pieces, respectively;
density - no more than 1350 kg / cu. m.;
ultimate strength in compression and bending - 50 kgf / sq. cm and 24 kg/sq. see respectively.

Miscellaneous:

the weight of one plate - in full-bodied variants it is naturally larger - 28-30 kg versus 25-26 kg;

the degree of water absorption - for moisture-resistant options is no more than 5 percent, and for all others - 30-35 percent;
airborne sound insulation index - hollow slabs are 2 dB less - 41 versus 43 dB.

In addition to all of the above, one cannot but say that even the material for the manufacture of tongue-and-groove plates can be different ...

Silicate GWP are created from water, quicklime and quartz sand in special autoclave chambers under high pressure and temperature.

Their main features:

high strength;
moisture resistance;
complete electrical insulation;
gas permeability;
constancy to rotting and deformation;
fire resistance.

Produced from building plaster And different kind additives, including blast furnace slag and Portland cement, which are known to have varying degrees moisture absorption. To find out if gypsum ASGs are moisture resistant in front of you, their color will help, if it is green, then the material is resistant to moisture.

The main features of gypsum tongue-and-groove boards can be called excellent soundproofing and thermal insulation properties and high fire resistance.

Scope of GWP.

The tongue-and-groove slabs, according to the manufacturers, are intended for the construction (assembly) of internal bearing walls and interior partitions. However, according to the reviews of builders and people operating this kind of structures, it is better not to trust a large load on the walls of GWP, so the real scope of this building material is only the construction of interior partitions.

Advantages of tongue-and-groove slabs.

Small thickness.
Structural strength and reliability.
Environmental friendliness.
High level of sound insulation.
Fire resistance.
Profitability: the construction of partitions from this building material is 10 percent cheaper than similar work with drywall and 15 percent cheaper than brick.
Simplicity and speed of installation: the plates are fastened to each other according to the “comb-groove” principle.
No need for additional plastering, finishing can be done immediately.
Resistant to insects and decay processes.
PWPs are easy to process - they can be: milled, sawn, planed and nailed.

Cons of tongue-and-groove plates.

Low strength and creep are typical only for gypsum GWP.
The tongue-and-groove slabs are good repeaters, so if you don’t hear the noise (within 43 dB) coming from behind the wall erected with their help, then all those sounds whose source will be above or below you (in the rooms to which the wall from the GWP adjoins), will, on the contrary, reach you even faster, as if “flowing out” from the inside of the partition.
Insufficient strength for attaching heavy structures to such walls.
The internal partition erected with the help of PGP boards may sway a little, the reason is insufficiently tight fastening to the ceiling.
When any of the slabs sags, the entire structure built from the PSP may collapse.
Before installation, this building material must undergo acclimatization - lie down for some time in the room (with a specific temperature and humidity) in which it will be used.

As you can see, tongue-and-groove plates have enough nuances and disadvantages, so before using them, carefully weigh the pros and cons.

Video.

Hello, in this article we will tell you what tongue-and-groove plates are, the pros and cons of this material. Redevelopment of housing is a troublesome task, especially if you need to move load-bearing walls. Fortunately, this is not always necessary; in many cases, installation of light partitions can be dispensed with. And for such situations, there is a wonderful solution that will help save effort, time and even money.

Grooved slabs pros and cons

These are solid blocks of rectangular shape, made of gypsum, to which the necessary polymer and mineral additives are added. On one side of each plate there is a groove, and on the opposite side there is a comb, which allows them to be tightly joined as parts in the designer. During installation, a special adhesive is used to ensure high bond strength. Plates are usually produced in two versions: 80 and 100 mm thick.

tongue-and-groove slabs types

Groove slabs are divided into the following types:

These are monolithic and therefore heavier - weighing up to 30 kg - plates. They are strong enough: two attachment points with dowels allow you to hang a load of 200 kg. Ideal for a private home: they do not have voids in which rodents and insects like to settle down.

Longitudinal holes are evenly spaced inside such plates. They have less weight- the difference is up to 25% - therefore it is more profitable to transport them and easier to assemble. The sound insulation indicators are about the same as those of full-bodied ones (according to some studies, a little better). Hanging cabinets and other heavy objects can be placed on them, only for this you will have to use special dowels - “butterflies”. Particularly good for intra-apartment partitions: the lighter the slabs, the weaker the load on the floors.

Both types of tongue-and-groove slabs can be not only conventional, but also hydrophobized (moisture resistant). In this case, in molding sand include additives that reduce water absorption: this option is best suited for rooms where humidity levels are high. Moisture-resistant plates are slightly heavier, but during installation it is practically not noticeable, you can work with them in the same way as with ordinary ones. As a rule, the green color of the initial mixture is used for marking hydrophobized boards.

tongue-and-groove slabs pluses

The tongue-and-groove slabs have so many positive qualities that a whole book could be written about them. Even if you list their main advantages, the list will be impressive:

Security. Gypsum boards do not burn, do not conduct electricity, and do not rot. They do not contain toxic impurities, and their acidity level is the same as that of human skin, that is, they can be contacted without special protective equipment.
Strength. They almost never crack, they are resistant to changes in temperature and humidity and do not deform under their influence. This is true for ordinary plates, and even hydrophobized ones can be safely used even for redevelopment of the bathroom.
Thermal insulation. The tongue-and-groove plates have excellent performance on this item. If we compare them, for example, with concrete ones, then the difference will be impressive: a wall of these slabs with a thickness of 8 cm corresponds to the level of thermal insulation concrete wall 40 cm thick.
Soundproofing. The plates are mounted to each other and to the ceilings so tightly that there are no voids in the connecting seams. This provides enough high level sound insulation: the coefficient is from 41 to 43 dB. If necessary, you can install a double partition: this will not only increase the level of noise protection, but also allow you to hide all engineering communications in the resulting gap.
Ease of installation. Doesn't have to be professional builder to assemble a partition from tongue-and-groove plates: they are like designer parts that easily fold into the wall. Relatively easy, of course: after all, each plate weighs 20-30 kg. And no “wet” work is required: the glue dries quickly, there is no need to plaster a smooth surface.
Space saving. Such a partition, with comparable strength, is thinner than that built from bricks or concrete blocks. And the vacated area - up to 3% of the total for the entire room - useful application there will always be.
Saving money. These plates per finished partition are cheaper than other materials of similar purpose. For one small wall, this can still not be noticed, but with a large-scale redevelopment, the difference will be very sensitive for the wallet. So why not get the same good quality but at a lower price?

tongue-and-groove slabs how to mount

Working with high-quality and easy-to-install material is a pleasure, so almost any construction and repair company will gladly take up the construction of structures from tongue-and-groove slabs. But for those who are used to doing everything with their own hands, such a task is quite within their power. There are some useful tips, which are worth remembering, and then everything will work out for sure:

Before installation, it is necessary to withstand the plates in the room for at least a few hours, and with a significant temperature difference - at least a day. You can work with this material at temperatures above +10 degrees.
Surfaces that the partition will come into contact with must be leveled and cleaned of dirt. Before starting work, you need to mark the floor and walls.
Plates are installed on a wide edge with a ridge down. In the bottom row, the comb at the plates is cut off, an ordinary hacksaw can handle this. The groove on the upper face and both sides are smeared with glue, after which the first row is drawn up, then the second and subsequent ones. After installation, each slab is tapped with a rubber mallet to secure it in place and ensure it is tightly connected to adjacent blocks. Excess glue is removed immediately so that no irregularities remain.
Each next row shifts relative to the previous one: the principle is the same as when building a brick wall, the vertical seams in adjacent rows should not coincide. The partition during the construction process must be regularly checked with a plumb line.
If there is a gap between the plates and the ceiling, it should be filled gypsum mixture, mounting adhesive or other suitable material. Partitions large sizes it is worth strengthening additionally: at the junctions with the floor and walls, cement mortar is useful, the reliability of the corners will be ensured by a metal tape and a perforated corner profile.
To improve sound insulation between the partition and adjacent surfaces, a special elastic gasket, cork or felt, is placed, or the gaps are filled with mounting foam. In this case, the partition is attached to the walls and ceiling with brackets and anchor dowels. It is important to remember that everything metal elements structures must be resistant to corrosion.
Electrical wiring and pipes of small diameter are located in strobes, then they are puttied. If the thickness of the plate is insufficient to accommodate the pipe, the partition is made double. The pipes need to be insulated and should not come into direct contact with the gypsum blocks.
The surface does not require additional processing. After the glue dries, you can immediately cover it with wallpaper or tiles.
Any attachments fastened with dowels. For hollow slabs, “butterflies” are needed, for full-bodied slabs, ordinary plastic dowels are suitable. The dimensions of the fasteners depend on the magnitude of the load: to place a hanging cabinet, for example, you need bolts that pass through the entire partition.

Conclusion

It is believed that one person can mount as many as 30 pieces of tongue-and-groove plates in a day. square meters partitions. The successes of a novice master will probably be more modest, but repair is still not a sport. high achievements. Even if the speed of work is not so impressive, the main thing is the result: a smooth and durable wall that will help make the room exactly the way you want to see it.

We hope you liked the article “Grooge plates pros and cons”!

If everything is more or less clear with the construction of load-bearing walls, since there are many very well-known materials, then with internal partitions everything is different. You don’t always want to lay them out of brick, but as an alternative to the vast majority, only drywall comes to mind. But in fact, this is not so, and tongue-and-groove blocks can also be successfully used in the construction of partitions.

As the name of this product suggests, we are talking about blocks equipped with grooves and ridges. This greatly simplifies installation, and partitions based on these structures are erected quickly enough.

According to their composition, these blocks are divided into gypsum and silicate. With the former, everything is clear, and the latter consist of quartz sand, which is placed in an acrylic bath and prepared with various additives and water. The output is a mixture that is stronger than gypsum, lighter than it, and also less susceptible to moisture.

Specifications

Depending on the material of manufacture, such blocks can be divided into ordinary and moisture resistant. If in ordinary ones the absorption of moisture can reach 26 and even 32 percent, then in moisture resistant ones it does not exceed 5 percent.

The dimensions of such elements are usually 667 by 500 millimeters. The thickness can vary, but, as a rule, is kept in gradation from 80 to 100 millimeters.

As for the mass, the standard for such a building material is 30-32 kilograms. However, there are hollow options on the market that can weigh up to 10 kilograms less. In general, the density of the material from which such blocks are made is 1350 kilograms per cubic meter.

What are the advantages of tongue-and-groove plates

The material is fire resistant, unlike the same drywall. Exposure to direct fire without losing one's own technical qualities the material is able to withstand up to three minutes, which is an excellent indicator;
Low prices. In general, the construction of such partitions costs 10 percent less than bricks and 15 percent less than drywall. At large volume labor savings will be very significant;
Installation work is quite simple. To build such a partition, you do not need to have special knowledge;
The presence of grooves and ridges allows installation as quickly as possible. Unlike brick, the importance of mortar decreases, but unlike drywall, you don’t need to carry out pre-assembly metal frame.

Important! Do not think that the presence of locks allows the installation of such blocks without the use of additional fastening components. After all, such locks are not very strong, and therefore the use of special glue is necessary.

The disadvantages of such blocks

Despite the fact that the sound absorption of such materials complies with the standards, the structures themselves make such plates a kind of repeaters. Thus, they collect sound vibrations from the floor, walls and ceilings, concentrating them on themselves. The problem is solved by using soundproof plaster, but only partially;
Gypsum boards are afraid of water. Create such partitions in places high humidity contraindicated. Over time, water can even make a hole in such structures;
In the event that the plates from below sag, the partition may crack. Moreover, cracks are sometimes extremely serious;
The partition must be properly fixed to the walls and ceiling. Otherwise, its sustainability will be in question;
The mass of gypsum tongue-and-groove boards is, of course, less than that of a brick, however, according to this indicator, drywall is still out of competition;
The walls are not intended for fastening heavy objects, since gypsum is not classified as a durable material. Well, if we are talking about hollow blocks, then there will be even bigger problems with fastening, up to the need to use anchor structures or wedging dowels.

The process of installing a partition from tongue-and-groove blocks: tips

The position of the comb on numerous installation examples is very different. But it's better to install given element comb up. So it will be possible to achieve higher structural strength;
cook additional tools. For the glue solution you will need a plastic bucket. In addition, find a spatula to apply glue to the edges of the boards. It is also important to make the masonry as even as possible, so the angle and plumb line will also come in handy. It is best to cut blocks with a grinder, as ordinary saws quickly become dull. Finally, it is necessary to knock out already installed plates with a rubber mallet;
It is extremely important to perfectly level the floor before starting the installation of such partitions. Unlike brick options, where the requirements for flat floor not so high, and everything can be straightened out with a solution, the slightest deviations from the norm in tongue-and-groove blocks can cause the entire wall to skew;
If it is necessary to make a hole in the wall of less than 800 millimeters, and at the same time there will be only one row of masonry on top, then a jumper can be dispensed with. Otherwise, its presence is mandatory. In this case, rigidity can be added using metal profile, installed on external corners, as well as working out the seams with reinforcing tape;
Be aware that when working with such blocks, too much dust is generated. It is best to work in a ventilated area. Well, if you need to cut such blocks, then you must wear a respirator in order to protect your lungs.

home > Maths