Many types of construction work can be significantly accelerated without loss of quality if modern technologies are used.

The construction of interior partitions using tongue-and-groove blocks as the main material can significantly reduce time costs. And when recalculating the cost per 1 m2, construction work will cost less than ordinary brickwork.

What are tongue-and-groove blocks?

Tongue-and-groove slabs are made from gypsum or silicate mixture. There are grooves and protrusions along the edges of the blocks for a more durable connection of the material to each other. The ridge of the block can be rectangular or trapezoidal.

In both options, the groove is quite securely fixed in the recess and does not allow the material to move.

The slabs can have a solid structure or with cavities inside. Hollow blocks have less weight and have increased heat and sound insulation, but in terms of mechanical strength such products are significantly inferior to solid products.

Both options can be used to make partitions, but if you plan to install massive shelves on a wall made of this material, it is recommended to purchase solid slabs.

Advantages of tongue-and-groove blocks

Like any building material, tongue-and-groove blocks have pros and cons.

The positive characteristics of this material include:

• fire safety;
• vapor permeability;
• environmental friendliness;
• efficiency;
• does not require plastering;
• light weight.

Tongue-and-ridge partitions do not ignite even when exposed to high temperatures, and when heated they do not emit toxic or foul-smelling substances. Thanks to these qualities, the material can be used without any restrictions for the construction of partitions for kitchens, rooms with installed heating equipment, including fireplaces and stoves.

The structure of the material does not prevent the penetration of steam, so the partitions can be equipped with tightly closing doors. In this case, no disturbances in the microclimate of the room will be observed.

Due to its relatively light weight, the structure does not require additional reinforcement of the base for the partition. Therefore, in comparison with solid blocks, tongue-and-groove blocks turn out to be a more preferable material for the construction of dividing structures in multi-storey buildings.

Disadvantages of the material

The disadvantages are:

1. The need to perfectly level the floor under the partition before starting installation work.
2. To obtain a more durable structure, it is necessary to install the blocks in 2 rows.
3. In rooms with high humidity, more expensive slabs must be installed.
4. During operation, a large amount of dust and small waste is generated.
5. In direct contact with liquid, the stove quickly gets wet.

These are the main disadvantages that may arise when constructing walls from tongue-and-groove blocks.

If you need to quickly make a partition, the main purpose of which will be to physically delimit the space of the room. The use of this material is the most optimal, despite some imperfections in the building material.

Types of GWP

Tongue-and-ridge partitions can be made from the following types of material.

Gypsum boards

Gypsum tongue-and-groove blocks, the price of which is always affordable, without compromising the quality of the product, allow construction work to be carried out as quickly as possible.

A tongue-and-groove comb, the dimensions of which are: height 50 cm, length 66.7 cm and thickness 8 cm, is enough to purchase in the amount of 2 - 3 dozen blocks for the manufacture of standard interior partitions.

Gypsum is an environmentally friendly material, so for people who care about their health, the use of building materials from this raw material is the best option for constructing walls in a residential area. Tongue-and-groove gypsum boards are made by casting using plasticizing additives, which are necessary to improve the strength of the product.

A significant disadvantage of gypsum tongue-and-groove blocks is the ability to absorb moisture upon contact with liquid.

If you need to make a partition in the bathroom or separate the kitchen from the living space, you should purchase special moisture-resistant gypsum boards. This type of tongue-and-groove blocks is made with the addition of cement and blast furnace slag, which can significantly reduce the hygroscopicity of the gypsum product.

Gypsum boards have good thermal insulation and can protect the room from extraneous sounds with a coefficient of up to 40 dB. Such positive qualities are especially evident when using gypsum hollow blocks. Plates of this design not only have good sound and heat insulating qualities, but also have less weight, which makes installation of partitions easier.

Silicate tongue-and-groove slabs

Silicate blocks, in comparison with gypsum material, have greater strength and have less water absorption. In terms of thermal insulation and sound absorption, such products are inferior to gypsum boards, but if you need to install massive shelves on the partition, then it is better to choose silicate blocks.

Tongue and tongue slabs of this type are made from a mixture of quartz sand and lime. To mix the mixture, use ordinary water.

The solution thus obtained is placed in an autoclave chamber for pressing and hardening under high temperature. In this way, a very durable building material with a thickness of 8-10 cm is formed, which can be successfully used for construction.

Despite the high density of the material, silicate tongue-and-groove slabs are a “breathable” material, which allows you to provide a comfortable microclimate in the room.

Manufacturers and prices

To purchase gypsum or silicate tongue-and-groove blocks for partitions of appropriate quality, it is recommended to choose products from well-known manufacturers.

Knauf materials meet high safety and quality requirements, so if you decide to make a partition from tongue-and-groove blocks, you should choose this manufacturer. Knauf 667x500x100 in Leroy Merlin, the price in the middle range of which does not exceed 250 rubles, is an ideal solution for the construction of interior partitions.

The moisture-resistant material from this company will cost only 20% more than a conventional block, but purchasing this type of slab is absolutely necessary when building walls in a damp room.

It is not only imported tongue-and-groove blocks for partitions that have good characteristics. Domestic manufacturers have also established the production of high-quality building materials of the highest quality.

The Russian company Volma produces a huge range of high-quality products, including tongue-and-groove blocks. Moisture-resistant Volma 667x500x80, the price of which is significantly lower than imported analogues, allows you to make a partition in the bathroom that is resistant to moisture.

At a low cost, Volma building materials are distinguished by their high strength and workmanship. If installed correctly, the use of this material allows you to obtain a high-quality surface that will not require major repairs for a long time.

You can compare the prices of PGP Knauf:

• full-bodied moisture-resistant 667x500x80 mm - 252 rubles;
• full-bodied 667x500x80 mm - 197 rubles;
• full-bodied moisture-resistant 667x500x100 mm - 293 rubles;
• full-bodied 667x500x100 mm - 235 rub.

• hollow moisture-resistant 667x500x80 mm - 202 rubles;
• full-bodied 667x500x80 mm - 190 rubles;
• full-bodied moisture resistant 667x500x100 mm - 266 rubles;
• full-bodied 667x500x100 mm - 233 rub.

Installation features

When constructing partitions, it is important not only to purchase high-quality material, but also to install the blocks correctly.

To carry out installation work, it is necessary to prepare the following materials and tools:

• Sand-cement mortar.
• Tongue-and-groove slabs.
• Glue.
• Mounting brackets.
• Gypsum solution.
• Seal.
• Primer.
• Dowels and screws.
• Building level.
• Putty knife.
• Screwdriver.
• Hacksaw.
• Rubber mallet.

Installation work is carried out in the following sequence:

1. Preparing the base

The base under the tongue-and-groove slabs must be perfectly level. Small cracks and irregularities on the surface can be sealed with cement mortar, and the sagging can be removed with a spatula. In case of significant curvatures, it will be necessary to level the base with a concrete screed.

The walls and ceiling at the junction with the blocks, if necessary, also need to be repaired, and after the solution has dried, a layer of primer must be applied.

2. Installation of the first row

The first row of blocks should be installed as level as possible to ensure the vertical position of the partition. For this purpose, it is necessary to install a cord between the walls at a height of 25-30 cm.

The first row is installed on a special seal, which is pre-glued to the surface of the base. Installation of the first row should be carried out using a level and special brackets for more secure fastening of the slabs to the wall.

3. Installation of the next rows

Subsequent rows are installed with offset seams. To ensure greater strength, it is recommended to install rows in increments of 0.5 block lengths. The slabs of subsequent rows are also attached to the wall using brackets.

To securely fix the plates, glue is used, which is applied at the junction of the materials. Each subsequent row should be installed only after the glue of the previous row has set.

4. Installation of the last row

It is necessary to leave a technological gap of about 2 cm between the last row and the ceiling. And to ensure reliable fixation, attach the slabs to the ceiling using staples and anchor bolts. When the slabs are fixed in this way, the gap between the wall and the ceiling is sealed with polyurethane foam.

Conclusion

The construction of partitions from tongue-and-groove slabs allows you to save a lot of time, and given the small thickness of the slab, such a redevelopment will not “eat up” too much area of ​​the room.

Therefore, if you need to quickly build an additional wall, then the best option would be to use technology using these building materials.

Remodeling an apartment is a common thing; all that remains is to decide on the material and technology for constructing new walls and partitions. We suggest paying attention to tongue-and-groove gypsum boards - a practical, affordable and universally applicable material.

Tongue-and-groove slabs and their scope of application

Tongue-and-groove slabs (GGP) are rectangular blocks of gypsum fiber 80 or 100 mm thick. The size of the slabs is standard - height 500 mm, width 667 mm. To strengthen the connection between the plates, their edges are made in the form of grooves and ridges. The technology allows the construction of up to 4 m 2 of partitions per hour.

Standard slabs are used in rooms with normal humidity conditions; moisture-resistant GGPs are used for bathrooms and baths. The plate can be either solid or hollow with horizontal through holes with a diameter of 40 mm. A hollow slab is not only characterized by reduced lightness and thermal conductivity; when laying slabs in one row, the cross-sectional alignment of the holes is guaranteed to be at least 90%, which allows the cavities to be used as technical channels for laying electrical wiring or pipes.

Preparing the installation site

PGPs are universal in use and can be installed in almost any construction environment. Due to their low weight, they do not require a foundation and can be installed directly on a screed or even on a solid wooden floor.

The only requirement for the location of the partition is that the base should not have a horizontal height difference of more than 2 mm per 1 meter. If the floor in the room does not meet these requirements, then a leveling screed 20-25 cm wide is made.

The surface of both the screed and the floor must be coated several times with a deeply penetrating primer, then dried and cleaned. It is optimal to install the PGP before plastering the load-bearing walls, so the finishing coating will be more seamless.

Damper pad device

To compensate for thermal expansion and settlement of the building, a tape of elastic material is laid at the junction of the partitions with the floor and walls. This could be rubber, balsa wood or silicone tape.

The base is covered with a thin layer of GGP glue and the tape is laid. It takes 6-8 hours to harden, after which you can begin constructing the partition.

Installation of the first row

Installation of PGP is carried out strictly in rows, starting from the bottom. The first row is basic and must be correctly oriented in space, vertically and horizontally. The most common error during installation is “waviness” of the partition, which occurs due to a slight displacement in the grooves. To eliminate this phenomenon, when laying each slab, you need to use a rule strip and check the general plane of the partition against it.

The first row should be laid from the corner. The area where the slab touches the floor and wall is covered with GGP glue, then the block is installed with the ridge up and its position is leveled. It is convenient to use a rubber mallet to move the slabs. Be sure to fasten the first block to the wall and floor using L-shaped plates, the role of which is successfully performed by direct hangers. To use them, you need to cut off the toothed comb from the edges and bring the thickness of the plate to the width of the comb. The plates are first attached to the base using quick-installation dowels with a length of 80 mm or more, then to the slab with black self-tapping screws no less than 60 mm long.

Subsequently, the slabs are attached through one side: on one side to the floor, on the other - to the previous slab, with a preliminary coating of the joint with a thin layer of glue and strong pressing. To control the placement of slabs according to the project, it is convenient to use lacing or a laser level. It would also be a good idea to mark the partition on the floor and walls indicating the locations for the doorways.

Construction of a partition and adjoining to load-bearing walls

The second and subsequent rows are laid with a seam offset of at least 150 mm. The slab is located strictly in the plane of the partition thanks to the tongue-and-groove connection. It is enough to control the horizontal installation level and lateral tilt. The outer slabs are attached to the load-bearing walls with L-shaped plates or reinforcement rods 8 mm thick.

To move the joints and remove the edge of the partition, you will need to trim the additional elements to the exact size. It is best to use a regular wood hacksaw with a thick blade and set teeth. If the partition is not adjacent to another wall, its end can be made perfectly flat by increasing the thickness of the glue in the vertical seam from 2 to 6-8 mm.

Construction of doorways

The vertical edges of the openings do not require additional reinforcement. To lay slabs over an opening with a width of less than 90 cm, it is necessary to build a supporting U-shaped strip, which can be removed after the glue has dried.

Openings 90 cm wide or more require laying on top of a series of support beam slabs - 40 mm boards or 70 mm reinforced CD profile. To reach one level, it is recommended to trim the slabs laid on top of the crossbar. The jumper is placed into the partition at least 50 cm on each side.

Corners and intersections of partitions

At the corners and junctions of partitions, it is necessary to strengthen the masonry. To do this, the slabs are laid across a row, alternately covering the joints. In places where the relaying occurs, it is necessary to remove the ridges; they are cut with a hacksaw into sections of 4-5 cm and chipped with a chisel.

The connection can be further strengthened with sections of straight hangers or welded T-shaped elements made of smooth reinforcement. In any case, additional trimming of the ridge to the required distance will be required.

Top row bookmark

When laying the top row, the largest amount of waste is generated due to cutting to the desired height. They can be glued and placed in voids, since this row of partitions does not experience a strong functional load.

Electrical wiring is usually laid in the voids of the top row, so it is important to prevent glue from getting into the holes. To facilitate cable pulling, you can additionally drill holes or make transverse holes with a diameter of 45 mm.

When laying the top row, it is necessary to maintain a gap from the ceiling of at least 15 mm to compensate for the deflection of the ceiling during settlement. The top row also needs to be attached to the floor of every second slab. Upon completion of installation, the remaining space is filled with polyurethane foam.

Interior finishing options

With proper installation of the PGP, the curvature of the surface is no more than 4-5 mm per meter of plane. This is an acceptable indicator for wallpapering walls. The outer corners of the partitions must be protected with a perforated corner profile placed on the starting putty. The internal corners are also puttied, strengthening them with sickle. The joints between the plates are cleaned with an 80 grit abrasive mesh, then the entire surface is coated twice with a high-adhesion primer.

Leveling walls made of PGP can be done with any finishing putty, but the coating will need to be reinforced with fiberglass mesh. Often, puttying partitions is used only to hide seams; as a rule, the layer does not exceed 2-4 mm. The tiles can be laid directly on the surface of the PGP with preliminary priming.

The use of tongue-and-groove slabs for the construction of partitions in the house is the best solution for novice craftsmen. Light weight, convenient dimensions, and a strong locking connection make it possible to re-equip the room to your liking without much effort. Using tongue-and-groove slabs, you can do the installation yourself in a matter of hours. But first you should study the technology of their installation and the basic properties of the material.

Tongue-and-groove slabs are made of gypsum and silicate. The first ones are poured from building gypsum mixed with plasticizing additives. To make the latter, quicklime and quartz sand are used, the mixture of which is pressed and kept in an autoclave. Gypsum boards retain heat better and do not allow sound to pass through, but silicate boards can withstand higher mechanical loads and absorb less moisture. Both types of slabs are environmentally friendly, so they are excellent for residential premises. In addition, these materials do not burn, do not emit harmful substances, do not rot or deform.

The slabs are divided into solid and hollow, which reduce the weight of the masonry by almost 25%. The dimensions of the gypsum board are 500x667x80 mm, the silicate board is slightly smaller - 250x500x70 mm. The installation of partitions from such slabs is carried out after the completion of the construction of all load-bearing structures, but before the start of finishing work and laying of the finished floor.

Technology and installation features

Masonry made from tongue-and-groove slabs retains heat well, so it can be mounted not only in the middle of the room, but also close to a wall facing a cold room or outside the building. Double partitions help hide wiring and other communications. To divide the interior into zones, partitions with a height of 80 cm or more are installed.

Tools and materials required for installation:

• tongue-and-groove slabs;
• building level;
• cement-sand mortar;
• adhesive composition;
• brackets for fastening;
• anchor dowels or screws;
• felt seal;
• gypsum mortar;
• primer;
• putty knife;
• hacksaw;
• screwdriver;
• rubber mallet.

Step 1. Preparing the site

If the partition is installed in a new house before finishing work begins, it is necessary to check the evenness of the floor and walls where the tongue-and-groove slabs meet. Any defects should be removed: sagging is removed by grinding, and depressions and cracks are sealed with cement-sand mortar. After drying, the walls and floor are covered with primer.

If there is a need to install a partition during an ongoing repair, the lines where the partition fits are marked on the walls and floor. Then carefully cut the finishing coating according to the markings and remove it to the base. You cannot attach slabs to wallpaper, paint, or decorative plaster, just like linoleum, parquet, or laminate. If the wall or floor is lined with ceramic tiles and the coating is held very firmly, you don’t have to remove it.

To ensure that the partition is even over the entire area, a cord is pulled between the walls along the markings at a height of 30 cm from the floor. This makes it much more convenient to control the vertical position of the slabs. Now a special sealant is glued along the line where the partition meets the base. Its width should correspond to the thickness of the slab - 8 cm. A cork backing or bitumen-impregnated felt is used as a sealant.

Step 2: Installing the first row

The lower ridges of the slabs of the first row are cut off with a hacksaw. Glue is applied to the top of the seal in small portions, both on the vertical and horizontal parts. Take the first slab and, on the side that will be adjacent to the wall, insert a perforated bracket into the groove. Part of the bracket should protrude a few centimeters above the slab. The bracket is attached to the wall either with self-tapping screws or anchor dowels if the base is concrete. The slab is placed with the groove up, leveled, pressed tightly to the base of the wall and floor, and tapped with a mallet. At the bottom, on the side where the second slab adjoins, a piece of bracket is again inserted into the groove and screwed to the floor with dowels.

If this plate is installed unevenly, the rest will completely repeat the angle of inclination. Then it will not be possible to level the masonry due to the interlocking joints, so the first slab is given the most attention. After the glue has set, install the next block of the bottom row. Glue is applied to the side ridges and grooves in such a way that the seams between the plates do not exceed 2 mm in thickness. Excess glue is immediately removed with a spatula, and the masonry is checked with a level. Again, attach the bracket at the bottom and secure it to the floor with anchor dowels. Each subsequent block is placed after the glue on the previous one has set.

Step 3. Install the next rows

Since the slabs of the second row must be positioned with offset seams relative to the first, one slab must be sawn in half. At the beginning and end of the row, staples are attached to the sections adjacent to the wall. The glue is made more liquid; it is applied only to the side and bottom grooves of each block. Be sure to check the horizontal and vertical of the masonry. The third row is installed after the glue in the second row has set.

Step 4. Installation of the last row

The top row of masonry should not be closely adjacent to the ceiling. According to the technology, it is necessary to leave 1.5-2 cm between the ceiling and the slabs. To do this, glue staples are inserted into the upper grooves of the last row and screwed to the ceiling with anchor dowels. After installation is completed, the resulting gap should be blown out with foam, and all excess should be cut off.

Installation of a partition with an opening

If you plan to make a door or window opening in the partition, you need to think about ways to attach the slabs above it. For openings with a width of no more than 80 cm, it is allowed to install slabs on a door frame or any temporary support, but only on the condition that there is 1 row of blocks above the opening. If the opening width is more than 80 cm or there are several rows on top, be sure to make a strong lintel.

Step 1. Marking and installation of the first row

On the base, mark the location of the partition vertically and horizontally. Connect the markings on opposite walls with two parallel lines along the floor. Determine the location for the opening and mark it on the lines. Further, the installation process is identical to the previous version, only the row is divided into 2 parts. The box can be installed at the first stage of masonry, or it can be inserted after installation is completed. Openings are also made without a frame if you do not plan to hang the door.

Step 2: Install the jumper

Having reached the top of the opening, cutouts are made in the slabs adjacent to both sides for the lintel. A 35x80 mm steel channel or a wooden beam of the appropriate section is suitable as a jumper. The depth of the cutout is approximately 50 cm, the width is equal to the thickness of the beam. The cutouts are coated with glue and the beam or channel is tightly inserted. When the glue has set, you can begin installing the slabs over the opening.

Step 3: Decorating the corners

To ensure that the outer corners of the partitions are not damaged and remain level, they must be strengthened. To do this, use a perforated corner profile 30x30 mm. Using a spatula, apply putty to the corner, apply the profile, press it well along its entire length, and cover it with another layer of putty on top. The profile is mounted with an overlap of 3-5 cm, the putty is very carefully and evenly distributed over the surface. To achieve maximum evenness, it is recommended to use an angled spatula.

For inside corners, the biggest problem is cracks at the joints. Serpyanka will help to avoid their appearance: putty is applied to the corner, the reinforcing tape is cut to the required length, bent in half lengthwise and applied to the putty. Add another layer of putty and use a spatula for the inner corners to spread it evenly. When choosing self-adhesive tape, you do not need to use putty.

Step 4: Finishing

If you plan to attach wiring and install sockets and switches on the partitions, use an electric drill to drill grooves and recesses in the slabs to the size of the boxes. After installation, all recesses are sealed with putty and sanded. In most cases, leveling the surface with putty for tongue-and-groove slabs is not necessary. After priming, the slabs can be painted, covered with decorative plaster, covered with wallpaper and ceramic tiles. To paint tongue-and-groove slabs, you cannot use paints based on liquid glass or lime.

Light objects - paintings, mirrors, lamps - can be attached to ready-made partitions using plastic dowels. Heavy bookshelves or kitchen cabinets are secured with lightweight anchor bolts.

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

This Code of Rules contains instructions on constructive solutions for partitions and wall claddings using gypsum tongue-and-groove slabs and methods of their installation, the implementation of which ensures compliance with the mandatory requirements for such structures established by current regulatory documents.

The choice of a specific design solution and materials for constructing structures falls within the competence of the design or construction organization.

If the decisions and materials recommended in this document are adopted for implementation, all rules established herein must be complied with in full.

The document was developed taking into account the experience of constructing these structures from materials supplied by KNAUF group enterprises. If materials from other manufacturers are used for the construction of structures provided for in this Code of Practice, their compliance with the requirements of this document must be confirmed in the prescribed manner.

The set of rules is intended for design and construction organizations, as well as operation services.

The set of rules was developed by TsNIIPromzdaniy OJSC (Deputy General Director, Candidate of Technical Sciences, Honored Builder of the Russian Federation CM. Glikin), KNAUF MARKETING NOVOMOSKOVSK LLC (General Director I.E. Kovaleva) and KNAUF SERVICE LLC (consulting engineer T.N. Skvortsov).

SP 55-103-2004

CODE OF RULES FOR DESIGN AND CONSTRUCTION

DESIGNS WITH APPLICATION
Gypsum tongue-and-groove slabs

STRUCTURES WITH APPLICATION
GYPSUM PLATES

Date of introduction 2004-10-01

1 AREA OF USE

Structures using gypsum tongue-and-groove slabs can be used in buildings for various purposes, varying degrees of fire resistance and functional fire hazard class, any number of storeys and any structural systems erected in all climatic regions of the country, including seismic regions and areas with other special conditions, subject to compliance with regulatory requirements requirements for structures.

2 REGULATORY REFERENCES

The list of regulatory documents referenced in this Code of Practice is given in the Appendix.

3 GENERAL PROVISIONS

3.1 This Code of Practice should be used to guide the design, construction and operation of enclosing structures using gypsum tongue-and-groove slabs in residential, public, administrative and industrial buildings.

3.2 This Code of Rules contains recommended design solutions for partitions and wall cladding using gypsum tongue-and-groove slabs, as well as component materials and products supplied by KNAUF group enterprises, specified in section . When applying these technical solutions, the design parameters provided for in this Code of Practice, including cross-sectional dimensions, the maximum permissible height of structures, as well as the connection devicetions and interfaces with other building structures may be used directly without carrying out supporting calculations. If slabs and component materials and products are used that differ from those specified in the section , the above parameters must be determined by calculation or test results.

3.3 Products and materials specified in the section , must meet the requirements of the relevant standards or technical specifications, and for materials supplied abroad - a certificate of conformity (if there is a domestic analogue) or a technical certificate (if there is no domestic analogue).

3.4 Materials and products must have mandatory accompanying documentation, including: certificates of conformity (for materials subject to mandatory certification); hygienic conclusion (for materials included in the list approved by the Russian Ministry of Health); fire safety certificates (for materials included in the list of products subject to mandatory certification in the field of fire safety); instructions for use.

4 MATERIALS USED FOR CONSTRUCTIONS MADE FROM GYPSUM TONGUE BOARDS

4.1 Gypsum tongue-and-groove slabs

4.1.1 This Code of Rules for the construction of structures provides for the use of gypsum tongue-and-groove slabs in accordance with TU 5742-007-16415648-98, TU 5742-014-03984362-96, TU 5742-001-56798576-2004 and TU 5742-003-05287561-2003, physical - technical characteristics of which are given in the table .

4.1.2 The range of gypsum tongue-and-groove slabs includes ordinary and hydrophobized (moisture resistant) slabs, solid and PUhundred-bodied. Ordinary slabs should be used in enclosing structures of rooms with dry and normal humidity conditions, and hydrophobized ones can also be used in rooms with wet conditions according to SNiP 23-02.

Table 4.1

Table 4.2

In rooms with wet conditions, the use of gypsum tongue-and-groove slabs is not allowed.

4.1.3 The nominal dimensions of gypsum tongue-and-groove slabs and maximum deviations from the nominal dimensions are given in the table .

4.1.4 Gypsum tongue-and-groove slabs are of different types according to the shape of the groove and tongue (Figure ).

TU 5742-007-16415648-98

TU 5742-003-05287561-2003

TU 5742-014-03984362-96

TU 5742-001-56798576-2004

TU 5742-007-16415648-98

TU 5742-007-16415648-98

TU 5742-001-56798576-2004

Picture 1 - Types of gypsum tongue-and-groove slabs according to the shape of the groove and tongue (dimensions are given as a guide and are not a rejection criterion)

4.2 Accessories and products

4.2.1 For fastening partitions and cladding to enclosing structures with an elastic connection, as well as fastening door frames to partitions, it is recommended to use brackets, the nomenclature of which is given in the table .

4.2.2 To fasten brackets to tongue-and-groove plates, it is recommended to use self-tapping screws 35 mm long with a countersunk head and a sharp end, made from steel grades 10, 10KP, 15, 15KP, 20 and 20KP according to GOST 10702 , and for attaching them to enclosing structures - expandable anchor dowels, the nomenclature of which is given in the table .

Table 4.3

Table 4.4

4.2.3 When elastically connecting partitions with other enclosing structures, it is recommended to use an elastic gasket made of cork with a density of at least 250 kg/m 3 or bituminized felt with a density of at least 300 kg/m 3 . The width of the spacers must be at least 75 mm for slabs 80 mm thick and at least 95 mm for slabs 100 mm thick.

4.2.4 When laying gypsum tongue-and-groove slabs, as well as for attaching elastic gaskets to enclosing structures, it is recommended to use glue from a dry putty mixture based on the gypsum binder “KNAUF-Fugen-Füller™” according to TU 5745-011-04001508-97 and TU 5745-021-03984362 -2001. When laying hydrophobized (moisture-resistant) gypsum boards, it is recommended to use the KNAUF-Fugenfüller Hydro™ putty mixture according to TU 5745-021-03984362-2001.

4.2.5 To protect internal corners in partitions and cladding made of gypsum tongue-and-groove slabs, reinforcing tape (serpyanka) should be used, and to protect external corners - procorner protective filler PU 31/31 according to TU 1121-004-04001508-2003 (table ).

4.2.6 To install a heat and sound insulating layer in partitions, the materials specified in the design documentation for a specific building must be used.

4.2.7 To prepare the surface of partitions and cladding made of gypsum tongue-and-groove slabs for finishing, it is recommended to use the KNAUF-Tiefengrund™ primer supplied by the KNAUF group enterprises.

4.2.8 To prepare the surface of partitions and cladding made of gypsum tongue-and-groove slabs for high-quality painting, it is recommended to use the KNAUF-Finishpaste™ putty composition supplied by KNAUF group enterprises.

4.2.9 In rooms where the surfaces of structures made of gypsum tongue-and-groove slabs are exposed to direct moisture, they should be protected with KNAUF-Flechendicht™ waterproofing mastic, and in places where gypsum slab structures interface with each other and withFor the floor, it is recommended to use self-adhesive sealing waterproofing tape “KNAUF-Flechendichtband®”, supplied by the KNAUF group of companies.

5 TECHNICAL SOLUTIONS FOR STRUCTURES FROM GYPSUM TONGUE BOARD PLATES

5.1 General provisions

5.1.1 This section applies to the design of structures of partitions and internal cladding of external walls made of gypsum tongue-and-groove slabs.

5.1.2 The section contains instructions on the design and design solutions of the main components of the structures listed above, their scope of application and physical and technical characteristics.

5.1.3 General requirements are imposed on structures using gypsum tongue-and-groove slabs in terms of:

Surface quality;

Fire-technical and hygienic characteristics of the materials used;

Characteristics of resistance to environmental influences, including the effects of high humidity and chemical aggression.

5.1.4 Meeting the requirements for surface quality, hygienic and fire-technical characteristics of structures is ensured by the properties of gypsum tongue-and-groove slabs, provided that they comply with the requirements of this Code of Rules.

5.1.5 The resistance of structures to environmental influences is ensured under the following conditions:

For structures operating in humid temperature and humidity conditions, characterized by SNiP 23-02, hydrophobized gypsum boards are used;

For structures operating in aggressive environments, metal elements are protected from corrosion in accordance with the requirements of SNiP 2.03.11.

5.2 Partitions

Building codes and regulations impose requirements on partitions in terms of resistance to the effects of their own weight, the weight of attached equipment, other operational, wind and seismic loads, as well as to the effects of accidental impacts.

Partitions of multi-apartment residential buildings (except for interior partitions with openings) and partitions between work areas of non-production buildings must also meet sound insulation requirements.

Partitions separating heated and unheated rooms of buildings for various purposes must also meet the requirements for resistance to heat transfer and vapor barrier.

Partitions in buildings with standardized fire-technical characteristics of building structures must meet the requirements for the fire hazard class and fire resistance limit.

General requirements

5.2.1 This section applies to partitions used in rooms with dry, normal and wet conditions according to SNiP 23-02.

Table 5.1

5.2.3 When choosing partition schemes, force and other influences, the class of functional and structural hazards and the degree of fire resistance of the building, as well as space-planning parameters (including height) and operating conditions should be taken into account.

Design requirements

5.2.4 Partitions made of gypsum tongue-and-groove slabs should be designed from slabs of the same type as self-supporting structures and should be designed to withstand the following loads:

Horizontal wind in accordance with SNiP 2.01.07;

Vertical from the own weight of the structures;

From the weight of household appliances and plumbing equipment hung on the structure;

Seismic (if the building is located in seismic areas).

5.2.5 The strength and stability of the adopted version of the structural scheme of the partitions should be checked by calculation for the action of wind load, taken equal to 0.2W 0 , where W 0 - calculated value of wind speed pressure, determined by SNiP 2.01.07.

5.2.6 The calculated seismic load taken into account in the calculations for seismic impacts is 6.5 for areas with seismicity 7, 8 and 9, respectively; 12.8 and 25.6 kg/m2.

5.2.7 To ensure the strength of the partitions when exposed to attachments, the provisions of the section should be taken into account of this Code of Rules.

5.2.8 The resistance of partitions to accidental impacts should be ensured by installing protective corner profiles at the outer corners.

5.2.9 The length of the partitions should not exceed 6 m, and the height - 3.6 m. Large partitions are recommended to be made from separate fragments, the dimensions of which should not exceed those indicated above, with the installation of a frame attached to the load-bearing structures of the building.

5.2.10 Interior partitions are designed as single, and between apartments as double, with the formation of an air gap, as well as with an additional layer of soundproofing material.

5.2.11 It is recommended to design partitions with the installation of slabs with the groove up in order to ensure uniform distribution of the assembly adhesive in the tongue-and-groove joint.

If necessary, it is possible to install the slabs with the groove down.

The slabs must be placed staggered, with the end (vertical) joints offset by at least 100 mm.

Interfacing of partitions with other building structures

5.2.12 For partitions that do not have regulatory requirements for soundco-insulation, it is recommended to use rigid coupling in places where they adjoin the enclosing structures directly through a solution of mounting adhesive (pictures - ).

5.2.13 For partitions that are subject to regulatory requirements for sound insulation, it is recommended to use an elastic connection between them and the building envelope (figures - ).

5.2.14 Elastic coupling should be performed by attaching the partition to walls, other partitions and ceilings with metal brackets and using an elastic gasket.

5.2.15 The horizontal installation spacing of metal brackets should not exceed 1335 mm for slabs of size 667´ 500 mm and 1800 mm with slabs size 900´ 300 mm; vertically - 1000 mm with slabs size 667´ 500 mm and 900 mm with slabs size 900´ 300 mm. In this case, at least three fastenings must be provided on each side of the partition.

Providing sound insulation

5.2.16 Required airborne noise insulation indexRw partitions made of gypsum tongue-and-groove slabs should be installed in accordance with the instructions SNiP 23-03.

5.2.17 The airborne noise insulation index of some types of partitions can be taken from the table when designing .

Table 5.2

5.2.18 The airborne noise insulation index of two-layer partitions made of gypsum tongue-and-groove slabs with an additional soundproofing layer in all cases must be determined by testing in accordance with GOST 27296.

Fire technical characteristics of partitions

5.2.19 The fire resistance limit of single-layer partitions made of gypsum tongue-and-groove slabs according to the “Manual for determining the fire resistance limits of structures, the limits of fire propagation along structures and the flammability path” with slab thicknesses of 80 mm and 100 mm is respectively EI 130 and EI 160, and the structural fire hazard class is KO.

Figure 2 - Constructive solutions for rigid coupling of a single-layer partition with enclosing structures

Figure 3 - Constructive solutions for rigid coupling of a two-layer partition with enclosing structures

Figure 4 - Designs of single-layer nodes ( A) and two-layer ( B) partitions when rigidly adjacent to the wall and forming an angle

Figure 5 - Constructive solutions for elastic coupling of a single-layer partition with enclosing structures

Figure 6 - Constructive solutions for elastic coupling of a two-layer partition with enclosing structures

Figure 7 - Designs of partition assemblies with elastic coupling with enclosing structures

Figure 8 - Designs of pipeline passage units with a diameter of up to 60 mm ( A) and more ( B) through the partition and through the shaft (B)

Figure 9 - Constructive solutions for rigid ( A) and elastic ( B) junction of wall cladding with enclosing structures

Figure 10 - Designs of wall cladding units in areas of window openings ( A) and expansion joint ( B)

5.2.20 According to SNiP 21-01 partitions made of gypsum tongue-and-groove slabs can be used in residential, public and industrial buildings of all degrees of fire resistance.

5.2.21 In places where partitions interface with water supply, steam and water heating pipelines, it is necessary to install a sleeve made of fireproof materials, ensuring free movement of pipes when the temperature of the coolant changes (Figure ).

5.2.22 When crossing a fire barrier with pipelines with a diameter of more than 60 mm, the pipeline should be insulated with a casing with a fire resistance of at least 0.5 hours at a length of 6.5 m from the plane of the partition.

5.2.23 When air ducts cross fire partitions, the walls of the air ducts must have fire protection that provides a fire resistance limit of at least 0.5 hours for buildings I and II degrees of fire resistance in accordance with SNiP 41-01.

5.3 Internal cladding of external walls

5.3.1 It is recommended to use internal cladding of external walls with gypsum tongue-and-groove slabs for additional heat and sound insulation.

5.3.2 Between the cladding and the wall, a layer of heat and sound insulating material may be additionally provided, the characteristics of which must be accepted based on the results of thermal engineering calculations according to SNiP 23-02 from the condition of inadmissibility of moisture accumulation in the wall over an annual period and moisture limitation for a period with negative average monthly temperatures.

5.3.3 The calculated value of the airborne noise insulation index with gypsum tongue-and-groove cladding should be determined in accordance with the instructions SNiP 23-03.

5.3.4 By analogy with partitions, the interface of the cladding with adjacent enclosing structures can be rigid or elastic (Figure ).

5.3.5 It is recommended to cover the gaps between the cladding and the wall at the junctions with the windows with gypsum fiber sheets GOST R 51829 which are attached to the cladding using dowels through a galvanized channel 40´ 75 ´ 40 ´ 2.0 mm. The channel, placed on the end of the slab, is secured to it with self-tapping screws. The gap between the end of the gypsum fiber sheet and the window frame should be sealed with silicone or thiokol sealant (Figure ).

5.3.6 In the places where the expansion joints of the walls are located when facing them with gypsum boards with additional insulation with heat-insulating material in the vapor barrier layer, it is necessary to provide a compensator (Figure ).

5.3.7 It is recommended to attach the layer of additional thermal insulation to the wall using glue or expansion dowels.

5.3.8 When using cladding as a fire-retardant element, which increases the value of the fire-technical characteristics of the wall, the actual fire resistance limit of such walls should be established by tests according to GOST 30247.1 , and the fire hazard class is according to GOST 30403.

6 TECHNOLOGY OF INSTALLATION AND CONSTRUCTION OF STRUCTURES FROM GYPSUM TONGUE-TOB BOARDS

6.1 Installation of partitions and cladding

6.1.1 It is recommended to install partitions during the finishing work. Work on wall cladding is also carried out during the finishing work process, when the wiring of electrical and sanitary systems is completed.

6.1.2 Before installing partitions and cladding, all construction work associated with “wet” processes must be completed. Installation must be carried out under dry or normal humidity conditions at an air temperature in the room not lower than +5 ° C before installing a clean floor.

6.1.3 Before installation, gypsum tongue-and-groove slabs must be kept at a temperature not lower than +5 °C for 4 hours.

6.1.4 Before starting work on installing partitions and cladding, dust and dirt must be removed from the base floor, walls and ceiling.

6.1.5 In accordance with the project, it is necessary to mark the position of the partition or cladding on the floor and use a plumb line to transfer it to the walls and ceiling. The position of the openings should also be marked on the floor.

6.1.6 If the floor surface is uneven, they must be eliminated with a leveling layer of cement-sand mortar of a grade of at least 50.

6.1.7 When elastically connecting a partition or cladding with enclosing structures, an elastic gasket is glued to the latter at the junction points with assembly adhesive. In this case, it is necessary to ensure the horizontal position of the gasket on which the bottom row of slabs should be installed. You should begin installing the slabs after the glue has set.

6.1.8 If the slabs are laid with the groove up, the ridge must be removed from all slabs in the first row using a roughing plane.

6.1.9 When installing the slabs of the lower row, the compliance of their position with the design one should be controlled using a rule and a level.

6.1.10 When laying subsequent rows, a mounting compound is applied in the groove of the bottom row of slabs and in the vertical end groove of the installed slabs.glue and each slab are pressed down using a rubber hammer. Excess glue that comes out is immediately removed and used in the future.

6.1.11 During the process of laying slabs, it is necessary to control the thickness of vertical and horizontal joints, which should not exceed 2 mm, and use a rule and level to check the flatness of the wall.

6.1.12 When laying slabs staggered, additional elements are used, obtained by cutting standard slabs into specified sizes using a hand saw with a wide blade and large teeth or a special power tool.

6.1.13 For the last row, slabs with beveled edges should be used, and if necessary, they should be cut to fit the ceiling surface configuration.

6.1.14 The slabs of the top row, as a rule, should be laid on the previous row with the long side, but to reduce waste, they can also be laid with the short side, subject to obligatory spacing of the end joints.

6.1.15 When elastically connecting a partition or cladding with adjacent structures, the fastening bracket is installed in the groove of the slab and secured to it with self-tapping screws, and to the enclosing structures - with anchor dowels.

6.1.16 Openings with a height of no more than 1/4 of the height of the partition and the area of ​​which does not exceed 1/10 of the area of ​​the partition may be made by cutting into the mounted partition. It is recommended to make large openings during the installation of the partition. For an opening up to 800 mm wide, if only one row of slabs is placed above it, a mounting structure is fixed above the opening to ensure the design position of the slabs before the adhesive sets in the joints (Figure ). If the opening is wider, a lintel with a support depth of at least 500 mm should be installed above it.

6.1.17 Door frames should be secured in the partition opening using self-tapping (drilling) screws according to the drawings And .

6.1.18 When forming a corner and where partitions or facings intersect with each other, the slabs should be laid with overlapping joints below the row located (Figure ).

6.1.19 To protect against mechanical damage, a PU 31/31 corner protection profile is fixed to the outer corners of the partitions, which during installation is pressed into the pre-applied layer of adhesive, after which a leveling layer is applied with a wide spatula or a spatula for external corners.

6.1.20 Internal corners should be reinforced using reinforcing tape, which is embedded in a layer of adhesive, and then a leveling layer is applied on top using an internal corner spatula.

Figure 11 - Installation diagram of the mounting structure when constructing a doorway

6.1.21 To prepare for finishing, the joints of the slabs are puttied using a wide spatula, and after drying, they are treated with a manual grinding device.

6.2 Installation of electrical and low-current wiring and piping

6.2.1 For electrical and low-current wiring in a partition or cladding made of gypsum tongue-and-groove slabs, grooves are made using a groove maker, in which the wiring is sealed with gypsum mounting adhesive. In this case, the groove spacing must be no less than the thickness of the slab, the depth must not be less than 1 cm, and the thickness of the slab behind the groove must not be less than 40 mm or 50 mm for slabs with a thickness of 80 and 100 mm, respectively (Figure ).

6.2.2 For sockets, distribution boxes and switches in the partition or cladding, holes are drilled with an electric drill with a special attachment.

6.2.3 For small-diameter pipelines, grooves are also cut out and then sealed with gypsum assembly adhesive. The amount of embedding and the distance between the grooves should not be less than those shown in the diagram (Figure ).

6.2.4 Large diameter pipes, as well as groups of pipelines and air ducts should be placed between the layers of a two-layer partition. In this case, after installing one layer of the gypsum partition, all engineering communications are fixed to it, and then the second layer of the partition is erected. The pipelines must not come into contact with the partition slabs.

7 FINISHING SURFACES OF STRUCTURES MADE FROM GYPSUM TONGUE-GRAVE PLATES

7.1 The surface of partitions and cladding made of gypsum tongue-and-groove slabs can be preparedsuitable for painting, wallpapering, ceramic tiles or decorative plaster.

Drawing 12 - Design of door frame fastening units in a single-layer partition with an opening width of up to 900 mm ( A), up to 1600 mm ( B) and up to 2000 mm ( IN)

Figure 13 - Design of door frame fastening units in two-layer partitions with opening widths up to 900 mm ( A), up to 1600 mm ( B) and up to 2000 mm ( IN)

Figure 14 - Layout diagram of slabs at the intersection of partitions

Figure 15 - Schematic diagrams of the placement of pipelines, electrical and low-current wiring in partitions made of gypsum tongue-and-groove slabs

7.2 To improve the adhesion of the paint layer, the entire surface should be treated with KNAUF-Tiefengrund™ primer, which is applied using a roller or brush. Complete drying of the primer coating occurs after 3 hours.

The final finishing preparation of the surface should be carried out using the KNAUF-Finishpaste™ putty composition, which is applied to the surface with a wide spatula in a thin layer. After drying, the surface is sanded.

7.3 Water-based, oil-based, resin, polyurethane or epoxy paints can be used to paint the surface. The use of lime paints and paints based on liquid glass is not allowed.

7.5 When finishing wallpaper, before pasting, it is recommended to treat the entire surface with KNAUF-Tiefengrund™ primer.

7.6 The surfaces of partitions and cladding made of moisture-resistant gypsum tongue-and-groove slabs in rooms with wet conditions should be finished with ceramic tiles on a pre-applied layer of KNAUF-Tiefengrund™ primer.

7.7 It is recommended to pre-coat the surface of structures exposed to direct moisture (in showers, near sinks) with KNAUF-Flechendicht™ waterproofing mastic, which is applied with a brush or roller, and glue the corners with KNAUF-Flechendicht™ sealing waterproofing tape.

7.8 After the waterproofing mastic or primer coating has dried, KNAUF-Fliesenkleber® tile adhesive, TU 5745-012-04001508-97, is applied with a notched trowel, onto which the ceramic tiles are laid.

7.9 The seams between the slabs are filled with grouting compounds, for which it is recommended to use the KNAUF-Fugenbunt™ compound.

8 BASIC SAFETY RULES DURING WORK

8.1 Construction of structures made of gypsum tongue-and-groove slabs should be carried out in compliance with the requirements SNiP 12-04.

8.2 Persons who have been instructed in safety precautions, industrial sanitation, trained in installation techniques and have a certificate for the right to carry out work should be allowed to install structures using gypsum tongue-and-groove slabs.

8.3 Workers must be provided with special clothing and personal protective equipment.

8.4 Work on the installation of structures using gypsum tongue-and-groove slabs is recommended to be carried out by specialized teams with experience in installing such structures and equipped with special tools.

8.5 The tools, equipment, fixtures and fittings used for the installation of structures used during the work must meet the safety conditions for performing construction and installation work. The recommended list of special tools is given in the appendix .

9 TRANSPORTATION AND STORAGE OF MATERIALS AND PRODUCTS

9.1 Gypsum tongue-and-groove slabs are transported by all types of transport in accordance with the rules for the transportation of goods in force for this type of transport.

9.2 The slabs are transported in packaged form. Transport packages are formed from slabs of the same type and size. Packaging schemes are established in the technological documentation.

By agreement with the consumer, transportation of slabs in unpackaged form is allowed.

9.3 When stored at the consumer's place, transport packages of slabs can be stacked on top of each other in accordance with safety regulations. In this case, the height of the stack should not exceed 2 m.

When loading, unloading, transporting and storing slabs, measures must be taken to prevent the possibility of damage and moisture. It is not allowed to load slabs in bulk or unload them by dropping them.

9.4 During the period of established negative temperatures, in order to avoid freezing of the slabs among themselves, packaging is done using cushioning material between the slabs.

9.5 The slabs should be stored in rooms with dry and normal humidity conditions, separately by type and size.

9.6 The manufacturer must guarantee that gypsum tongue-and-groove boards comply with all the requirements of the manufacturer for at least a year, subject to the conditions of transportation and storage.

9.7 Heat and sound insulating materials can be transported by any means of transport, provided they are protected from moisture.

9.8 Thermal and sound insulating materials should be stored in closed warehouses or under a canopy, provided they are protected from moisture.

9.9 Screws, dowels, metal plates for fastening can be transported by any type of transport, packed in boxes or boxes equipped with labels, and stored under a canopy.

10 ACCEPTANCE OF ASSEMBLED STRUCTURES FROM GYPSUM TONGUE-TOGGED PLATES

10.1 It is recommended that the construction of partitions and cladding made of gypsum tongue-and-groove slabs be adopted in stages with the execution of appropriate acts for hidden work (laying electrical and low-current wiring, laying heat and sound insulating materials and etc.).

10.2 The assembled structures of partitions and claddings must have flat and smooth surfaces free of dirt, glue and putty compounds, unfilled seams and cavities. You should check for cracks and broken corners. The heads of screws, bolts and anchors facing the front side of the structure must be recessed into the body of the slab.

10.3 Defects in the surfaces of partitions and claddings should not exceed the values ​​​​given in the table .

10.4 In places where partitions and claddings interface with other enclosing structures and where they intersect with each other, putty must be laid without breaks along the entire interface contour to the full depth of the joint.

11 BASIC RULES FOR TECHNICAL OPERATION OF STRUCTURES MADE FROM GYPSUM TONGUE-TOGGED PLATES

11.1 The type of fastening element used should be selected depending on the weight of the objects hung on the partition or cladding.

11.2 Lightweight attachments and interior items are attached to partitions and cladding made of gypsum tongue-and-groove slabs using plastic anchor dowels. In this case, it is necessary to take into account the maximum permissible load per dowel indicated in the table .

11.3 To determine the maximum load on the dowel (elastic tension), it is recommended to use the formula

WhereF - maximum load (elastic tension) on the dowel, kN;

B - maximum weight of the object being hung, kN;

Table10.1

Table 11.1

Figure 16 - Mounting points for communication equipment to a single-layer partition ( A) and two-layer ( B)

e - distance of the center of gravity of the hung object from the wall, cm;

P - number of fastenings;

A - support arm, see

11.4 Heavy attachments and objects must be secured using special fasteners such asIt is often recommended to use through anchors and bolts with steel washers (Figure ).

11.5 If partitions or cladding are damaged during operation from mechanical influences, leaks, etc. The cause of the damage must first be identified and eliminated.

11.6 If water gets into the cavities of two-layer partitions or into the gap between the cladding and the wall, it is necessary to drain the standing water, for which purpose, first drill control holes at the bottom of the partition or cladding, and then, if necessary, cut out the opening necessary to repair the damaged pipeline.

11.7 After repair work on the pipeline, the hole is sealed with standard gypsum boards or inserts cut from them.

APPENDIX A

LIST OF REGULATIVE DOCUMENTS REFERENCED IN THIS CODE OF RULES

SNiP 12-04-2002 Occupational safety in construction. Part 2. Construction production.

SNiP 21-01-97* Fire safety of buildings and structures.

SNiP 02/23/2003 Thermal protection of buildings.

SNiP 2.03.11-85 Protection of building structures from corrosion.

SNiP 2.01.07-85* Loads and impacts.

SNiP 41-01-2003 Heating, ventilation and air conditioning.

SNiP 03/23/2003 Noise protection.

GOST 10702-78* Rolled products from high-quality structural carbon and alloy steel for cold extrusion and upsetting. Technical conditions.

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:

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

For work you will need:

• 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 rooms, we buy hydrophobized (moisture-resistant) GGP board. The moisture-resistant Knauf board is marked with a green stripe.

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.

When installing the last row of PGP, 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.