The tongue-and-groove plate is a gypsum rectangle with grooves and ridges around the perimeter. The advantages of a PGP partition compared to a brick partition are the quick installation that does not require the skill of a bricklayer. The vertical surface of the wall, thanks to the grooves / ridges, will be almost perfect, excluding subsequent plastering. There is also no need to mix a large volume of masonry mortar. For an average partition of 20 squares, one bag of Knauf gypsum mixture is enough. So let's get started.

Marking the first row of an interior partition made of PGP

The most time-consuming is the breakdown of the dimensions of the future partition, the marking of the openings and the scrupulous alignment of the first row, taking into account the horizontal and vertical.

First, prepare all the plates for the first row. We lay out the blocks on a dry one along the entire length of the future wall, check the dimensions, draw a single common line at the base of the plates along the length with a marker, use a laser level.

The slab is placed with the comb up, respectively, the groove in the lower part of the slab is cut down with a pick to the base, then it is polished with a planer for stability.

The part of the plates marked with a dotted line is removed.

Partition masonry

If the floor surface is not even or there is no floor screed at all, it is more expedient to level the first row by installing blocks on a cement-sand mortar, since the gypsum mixture quickly sets. It is better to knead the gypsum mixture (glue) in small quantities for a maximum of 5-10 boards.

The consistency of the glue, like thick sour cream, is applied with a spatula in a thin layer (no more than 5 mm) along the vertical and horizontal edges of the plate with a quick movement, wiping the glue towards itself with the flat of the spatula. We seal the seams by gently tapping the plate with a rubber mallet. We seal the seams with squeezed glue and cover up minor chips and cracks.

If we start laying the partition with a whole slab, then the next half will go to dressing the seams.

Be sure to fasten it with self-tapping screws to the outer wall through a row and connect the partition of the tongue-and-groove plates with galvanized mounting corners.

The corner is placed for rigidity along the edge of the plate, sinking into the groove with a chisel or a hacksaw. We fix the corner with the next row.
Do not forget to control the verticality and horizon of each slab with a level, correcting the slab or upsetting it, if necessary, using a bar and a rubber mallet.

Gypsum slabs are malleable and are sawn with an ordinary hacksaw when halves, quarters, pieces are needed for doorways, corners or lighthouses.

Work with a hacksaw will be enough, therefore, in order not to bother yourself with endless sawing, I advise you to make a 1.5-2 cm file on both sides. Put the plate with a file on the edge of a stack of plates or a goat, and lifting it up, holding it, release it without effort. The fracture, if necessary, is polished with a planer.

As the barrier is erected doorway instead of a jumper, we overlap with a bar with a thickness close to the width of the plate. We fasten the bar to the GWP with self-tapping screws obliquely.

Door opening device

Depending on the size of the door and the spread of the corners, it is not always possible to make an opening from HWP. Sometimes it is necessary to use other materials to adjust the dimensions. doorway without compromising floor space.

In this case, a brick was used, installed "on the butt" on a cement mortar. The ends of each brick are tied with a large nail driven into the slab and fixed with the next brick. Additional rigidity of the structure will be given by the subsequent puttying of the partition with a fiberglass mesh.

Above the jumper, to facilitate the construction, a plasterboard finish will go.

To facilitate the process of arranging the opening, and if the door can be positioned arbitrarily, then we build a solid wall, and subsequently, after a day or two, we cut the opening with a reciprocating jigsaw, focusing on the dressing seams.

We complete the construction of the partition from the tongue-and-groove plates with the last row under the ceiling. We cut the blocks of the last row along 1-1.5 cm less than the required height for foaming with mounting foam.

Conclusion

On the Internet, opinions on GWP partitions are divided. In my opinion, the benefit for the customer is obvious. Subject to the accuracy of the breakdown of the first row, the presence of one's own desire, patience and a partner, a partition made of tongue-and-groove plates with one's own hands can be erected quickly without much effort.

You are doing a serious renovation of an apartment with a redevelopment or you have bought a new building with a free layout, you will definitely face the task of installing or 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 plate (GWP) or a tongue-and-groove partition with your own.

Two ways to install the PGP partition

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

1. Elastic connection (fastening). Elastic fastening involves the installation between the edges of the partition and the walls, ceiling, floor of a layer of soundproof material. Available soundproofing material is cork. It is important to understand that elastic fastening is done where the customer, that is, you, needs to improve the soundproofing qualities of the partition. There are no other criteria for flexible installation of GWP. 2. Monolithic connection (fastening). Monolithic fastening involves direct contact of partition plates with walls, floors, ceilings through mounting adhesive.

Material for mounting partitions made of PGP (groove-and-groove plates)

For work you will need:

1. Gypsum tongue-and-groove slab (GWP). Producers: Knauf, Volma, etc. In terms of GWP, we are interested in its thickness. Plates with a thickness of 80 and 100 mm are common. The number of plates is calculated from the area of ​​future partitions with a margin of 10% for undercuts. GWP dimensions:

• 667x500x80 mm for calculating 3 plates per meter: 28 kg / 1 plate.
• 667x500x100 mm for calculating 3 plates per meter: 37 kg / 1 plate.
• 900x300x80 mm for calculating 3.7 slabs per meter: 24 kg / 1 slab.

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

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

4. For elastic connection only! You need a sound deadening pad. These are strips 100-150 mm wide, best from cork. 5. If the floor is uneven, you will need a dry cement mixture to level the floor at the installation site of the partition.

What thickness of GWP to choose

Interroom partitions from PGP are made in one layer. Technologically, it is impossible to make a straight GWP partition higher than 3600 mm and wider than 6000 mm. In apartments, there are usually no such walls, so there are no restrictions on the use of GWP boards for apartments.

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

It is necessary to choose the thickness of the plates for the partition according to its size. The larger the partition, the thinner the plate. For partitions in a new building, it is better to choose PGP 100 mm slabs. For cladding the walls of the balcony and the partition in the bathroom, 80 mm of PGP boards are enough.

Tool for installation of partition walls GGP

For work you will need the following tool:

• Saw: for cutting boards;
• Drill or perforator: For fixing plates and mixing mortar. Nozzle mixer for drill;
• notched trowel width 200 mm;
• Spatula simple: 100 and 200 mm;
• Horizontal level 500 mm long and 1500-2000 mm long.
• Plumb for marking partitions;
• Rubber hammer for upsetting slabs;
• Clean container for mixing the solution;
• Clean water for mortar and tool cleaning. Rags.

Do-it-yourself installation of a tongue-and-groove plate - step by step

• Prepare a place for mounting the partition. Remove debris, prime the junction of the partition.

• The base of the partition must be horizontally flat. If the slope of the base is visible during the measurement, it is leveled with cement mortar. After the solution has dried, it is primed.
• Mark the partition on the floor, walls, and ceiling. Use a plumb line or laser level for marking.
• When the partition is elastically (soundproofed) to the floor, a soundproof strip is glued to the installation site of the partition on the assembly adhesive.

• PGP boards can be installed both with the groove up and with the groove down. However, for reliable adhesion, mounting with the groove up is recommended.

• Therefore, at the plates of the first row, you need to cut off the comb with a saw. Do not use a power tool for cutting, the amount of gypsum dust will be unreasonably large.
• Cut boards in a partition row should not be narrower than 100 mm. Therefore, before installation, make a dry installation and try on the plates in place. If the last slab in the row is less than 100mm, cut the first slab in the row.

• Install the first row of tiles with adhesive. 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 elastic abutment, place reinforcing corners. The corners are attached to the GWP with standard self-tapping screws. To attach the corner to the walls, we use dowels with 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 put the staples after the first, third and fifth rows.
• We look at the photo, how the mounting adhesive fits into the groove of the bottom row.
• The plates are installed with a spike in the groove with glue. We upset the plate with a rubber mallet. Remove excess glue squeezed out by the top plate with a spatula.

• We constantly control the horizontal rows and the verticality of the partition.

Adjacency of the GWP partition to the ceiling

The adjoining of the GWP partition to the ceiling requires a separate paragraph.

Attachment of partition to ceiling

The correct connection of the partition to the ceiling is more difficult than to the wall. The last row of GWP slabs is cut at an angle. The corner should "look" at you. The distance from the bevel to the ceiling should vary from 10 to 300 mm.

When installing the last row of GWP, the beveled void between the ceiling and the slab is filled with mounting adhesive.

Installation of the tongue-and-groove plate is completed. After installing the tongue-and-groove partition, inspect it, check the vertical level of the partition. With the remaining glue, fill, if any, the voids between the plates. Remove excess glue squeezed out of the seams.

Further, 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 along with the walls of the room, usually puttied several times. Further, according to the repair plan (paint or glue wallpaper or something else).

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

It's time for the walls to be erected. Let's start laying the first row. This will require prepared plates, with a cut spike. Installation of a tongue-and-groove plate with a groove up or a tongue up is not essential, but installation with a groove up is recommended, in this case it is more convenient to apply a binder solution to the end of the plate, and a high-quality mortar layer is obtained, which ensures a strong connection between the tongue-and-groove plates.

The prepared adhesive solution is applied to an elastic tape or to the floor surface, if the installation of partitions is carried out without a noise-insulating gasket. The recommended length of the applied mortar (A) with a plate length of 667 mm can be 680 ... 700 mm. When starting laying the corner of the partition made of PGP (node ​​No. 1), the binder solution is applied immediately under the installation of two slabs (B and C).

Installation procedure for partition corner plates:

• Plate installation (B). The plate is oriented according to the markings and the metrostat. The adjustment of the plate, as well as its horizontal alignment, is carried out by tapping on its end with a rubber mallet, as shown in footnote 1.
• Installing the plate (B) with the cut tenon. A binder solution is applied to the end of the slab, with which it will adjoin the slab (B), the slab is set in place and the plates are tightly connected to each other (footnote 2). All directions of blows with a rubber hammer are indicated by arrows.

After the plates are installed, remove the excess binder solution and proceed to the device of the nodal connection of the plates at the place where the partitions are separated (node ​​No. 2).

The connection of gypsum tongue-and-groove plates in the place of the perpendicular connection of the partitions can be carried out as follows. From the corner of the partition (plate B), measure the distance for the device of the doorway, for example, 900 mm wide and install the plate (G) after cutting the spike with a hacksaw.

After that, a solution is applied to the end of the plate and the plate is installed (D). The installation of these plates is carried out according to the marking, and in addition to controlling the horizontal and vertical installation of the plates, it is necessary to control the internal angle of the connection of these plates, which should be equal to 90 °.

There is another way of perpendicular connection of partitions from PGP - without serial dressing. With this method of perpendicular connection of partitions, partitions (A) are first erected, separating the total area of ​​\u200b\u200bthe bathroom (if we take the example considered in our case), and only after that a partition (B) is erected dividing the bathroom into two separate rooms. This partition is fastened already without bandaging the rows, by end connection through a binder solution (C) and additional fastening with steel corners (D) to the wall of the main partition.

Now you need to install the plates of the lower row of the partition, which is adjacent to one of the walls of the house. To do this, first install the plate (G), which is directly adjacent to the surface bearing wall Houses. The installation of the plate can be carried out both with a groove to the wall, and with the end where the spike was. A solution is applied to the end of the plate and pressed with this end against the wall of the house, sealing the connection by tapping the end of the plate with a rubber mallet:

After the plate is installed and leveled, it is fixed to the wall using a steel angle (rigid connection). How to fix the slab to the wall is shown in footnote 3. Throughout the entire work on the installation of the lower row of partitions, it is necessary to control the horizontality and verticality of the row of GWP using the building level.

After that, the laying of the plates of the first row is continued to the place of the device of the second doorway. If a doorway with a width of 900 mm is required, and when installing the last slab (З), the distance between it and the slab (E) is less than necessary, then in this case the slab (З) is cut, but it is not recommended to leave a trim for installation in place of the doorway less than 250 mm.

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

The choice of a specific design solution and materials for the installation of structures belongs to the competence of the design or construction organization.

If the decisions and materials recommended by this document are adopted for implementation, all the rules established in it must be observed in full.

The document was developed taking into account the experience of constructing these structures from materials supplied by the enterprises of the KNAUF group. In the case of using materials from other manufacturers for the device of the structures provided for by this Code of Rules, 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 maintenance services.

The set of rules was developed by TsNIIpromzdaniy JSC (Deputy General Director, Candidate of Technical Sciences, Honored Builder of the Russian Federation CM. Glikin), OOO KNAUF MARKETING NOVOMOSKOVSK ( CEO I.E. Kovalev) 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

Introduction date 2004-10-01

1 AREA OF USE

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

2 REGULATORY REFERENCES

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

3 GENERAL

3.1 This Code of Practice should be followed in the design, installation and operation of building envelopes using gypsum tongue-and-groove slabs in residential, public, administrative and industrial buildings.

3.2 This Code of Rules contains the recommended design solutions for partitions and wall cladding using gypsum tongue-and-groove boards, as well as component materials and products supplied by the Knauf group enterprises specified in the section . When applying these technical solutions, the structural parameters provided for in this Code of Rules, including section dimensions, the maximum allowable height of structures, as well as the connection deviceconnections and interfaces with other building structures, it is allowed to use directly without justifying calculations. If plates and component materials and products are used that differ from those indicated in the section , the parameters listed above should be determined by calculation or by 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 of foreign supply - 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 Ministry of Health of Russia); 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 STRUCTURES FROM GYPSUM GRID BOARDS

4.1 Gypsum tongue-and-groove boards

4.1.1 This Code of Rules for the installation of structures provides for the use of gypsum tongue-and-groove plates according to 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), solid and puhundred-bodied. Ordinary slabs should be used in the building envelope of rooms with dry and normal humidity conditions, while hydrophobized ones can also be used in rooms with wet conditions. SNiP 23-02.

Table 4.1

No. p.p.	Indicator	Unit rev.	Plates according to specifications
			TU 5742-007-16415648-98	TU 5742-014-03984362-96	TU 5742-001-56798576-2004	TU 5742-003-05287561-2003
						com.	hydrof.
	Density, no more	kg / m 3	1250			1100		1200
	Release humidity, no more
	Ultimate compressive strength, not less than	MPa
	Bending strength, not less than	MPa
	Coefficient of thermal conductivity: l BUT	W/m × °С	0,29
	l B		0,35
	Water absorption of hydrophobized boards, no more
	Specific effective activity of radionuclides, not more than	Bq/kg
	Flammability group according to GOST 30244		ng

Table 4.2

Specifications	Plate dimensions, mm			Permissible limit deviations, mm
	Length L	Width IN	Thickness t	Length L	Width IN	Thickness t
TU 5742-007-16415648-98			80; 100		± 2
TU 5742-014-03984362-96
TU 5742-001-56798576-2004			80; 100
						± 0,5
TU 5742-003-05287561-2003 (corpulent)
				± 5
TU 5742-003-05287561-2003 (hollow)
Note - Plates according to TU 5742-007-16415648-98, TU 5742-014-03984362-96, TU 5742-001-56798576-2004 - solid. Plates according to TU 5742-003-05287561-2003 - hollow and solid.

In rooms with a wet regime, the use of gypsum tongue-and-groove plates is not allowed.

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

4.1.4 Gypsum tongue-and-groove slabs in the shape of the groove and ridge are of various types (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 in the form of a groove and a crest (dimensions are given for reference and are not a rejection sign)

4.2 Accessories and products

4.2.1 For fastening partitions and claddings to enclosing structures with elastic abutment, as well as fastening door frames to partitions, it is recommended to use brackets, the range 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 of steel grades 10, 10KP, 15, 15KP, 20 and 20KP according to GOST 10702 , and for attaching them to the enclosing structures - expandable anchor dowels, the nomenclature of which is given in the table .

Table 4.3

General view and dimensions	Product and material designation	Purpose
		Bracket C-1 For fixing partition walls with elastic connection
		Bracket S-2 For fastening door frame to the partition
		Corner protection profile for finishing external corners of partitions

Table 4.4

General form	Name	Length, mm	Diameter, mm
	Self-tapping screw with a countersunk head and a sharp end (screw)
	Plastic anchor dowel		6 ,0
			10,0
	Metal anchor dowel
			12,0

4.2.3 In case of elastic connection of 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 bituminous 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 a gypsum binder "Knauf-Fugen-fuller ™" 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 the internal corners in partitions and facings made of gypsum tongue-and-groove plates, reinforcing tape (serpyanka) should be used, and to protect the outer corners - aboutcorner protection film PU 31/31 according to TU 1121-004-04001508-2003 (table ).

4.2.6 For the installation of a heat and sound insulating layer in partitions, materials provided for in the design documentation for a particular building should be used.

4.2.7 To prepare the surface of partitions and facings made of gypsum tongue-and-groove boards for finishing, it is recommended to use the KNAUF-Tifengrund™ primer supplied by the KNAUF Group enterprises.

4.2.8 To prepare the surface of partitions and facings made of gypsum tongue-and-groove boards for high-quality painting, it is recommended to use the Knauf-Finishpasta™ putty compound supplied by the enterprises of the Knauf group.

4.2.9 In rooms where the surfaces of structures made of gypsum tongue-and-groove boards are directly exposed to moisture, they should be protected with Knauf-Flehendicht™ waterproofing mastic, and in places where structures made of gypsum boards are mated with each other and withfloor, it is recommended to use self-adhesive sealing waterproofing tape "Knauf-Flehendichtband®" supplied by the enterprises of the Knauf group.

5 TECHNICAL SOLUTIONS FOR STRUCTURES FROM GYPSUM GRID PLATES

5.1 General

5.1.1 This section applies to the design of partition structures 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 for the main components of the structures listed above, their scope and physical and technical characteristics.

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

surface quality;

Fire-technical and hygienic characteristics of the materials used;

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

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

5.1.5 Structural impact resistance environment provided under the following conditions:

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

For structures operating in an aggressive environment, 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 attachments, other operational, wind and seismic loads, as well as to the effects of accidental impacts.

Partitions of multi-apartment residential buildings (with the exception of interior partitions with openings) and partitions between working premises of non-industrial buildings must also meet the requirements for sound insulation.

Partitions separating heated and unheated premises 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 operated in rooms with dry, normal and wet conditions according to SNiP 23-02.

Table 5.1

Scheme	Design	Weight 1 m 2, kg
	Single	100
	Double	200
	Double with an additional layer of heat and sound insulating material	200* 250*
* Without taking into account the mass of the heat and sound insulation layer. Note - The numerator indicates the mass for partitions made of slabs with a thickness of 80 mm, the denominator - 100 mm.

5.2.3 When choosing partition schemes, force and other effects, the class of functional and structural hazard 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 calculated for the following loads:

Horizontal wind in accordance with SNiP 2.01.07;

Vertical from the own weight of structures;

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

Seismic (when 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 calculating the effect of the wind load, taken equal to 0.2W 0 , where W 0 - the calculated value of the velocity head of the wind, determined by SNiP 2.01.07.

5.2.6 The calculated seismic load taken into account in the calculations for seismic effects is 6.5 for areas with seismicity of 7, 8 and 9 points, respectively; 12.8 and 25.6 kg / m 2.

5.2.7 To ensure the strength of partitions when exposed to attachments, the provisions of section of this Code of Practice.

5.2.8 The resistance of partitions to accidental impacts must be ensured by the installation of protective corner profiles on the outer corners.

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

5.2.10 Interroom partitions are designed as single, and inter-apartment partitions - double with the formation of an air gap, as well as with an additional layer of soundproofing material.

5.2.11 Partitions are recommended to be designed with the installation of plates with a groove up in order to ensure uniform distribution of the mounting adhesive in the tongue-and-groove joint.

If necessary, installation of plates with a groove down is allowed.

The slabs should be placed "in a row", with the offset of the end (vertical) joints of 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 a rigid interface at their junction with the enclosing structures directly through the mounting adhesive solution (Figures - ).

5.2.13 For partitions that are subject to regulatory requirements for sound insulation, it is recommended to use their elastic interface with 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 step of installing metal brackets horizontally should not exceed 1335 mm for plates with a size of 667´ 500 mm and 1800 mm for slabs size 900´ 300 mm; vertically - 1000 mm with plates of size 667´ 500 mm and 900 mm for slabs size 900´ 300 mm. At the same time, at least three fasteners must be provided on each side of the partition.

Ensuring sound insulation

5.2.16 Required Airborne Sound Insulation IndexRw partitions made of gypsum tongue-and-groove boards should be installed in accordance with the instructions SNiP 23-03.

5.2.17 The airborne sound insulation index of some types of partitions can be taken during design according to the table .

Table 5.2

partition type	Thickness of tongue-and-groove plate, mm	Airborne sound insulation indexRw, dB
single layer
Double layer with 40 mm air gap

5.2.18 The airborne noise insulation index of two-layer partitions made of gypsum tongue-and-groove boards with an additional sound-proofing 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 boards according to the "Manual for determining the fire resistance limits of structures, the limits of fire propagation along structures and the flammability path" with a plate thickness of 80 mm and 100 mm is, respectively EI 130 and EI 160, and the class of constructive fire hazard - KO.

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

Figure 3 - Structural solutions for rigid connection of a two-layer partition with enclosing structures

Figure 4 - Designs of single-layer nodes ( BUT) and two-layer ( B) partitions with a rigid connection to the wall and the formation of a corner

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

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

Figure 7 - Structures of partition units with elastic interface with enclosing structures

Figure 8 - Designs of nodes for passing pipelines with a diameter of up to 60 mm ( BUT) and more ( B) through the partition and through the shaft (B)

Figure 9 - Structural solutions of rigid ( BUT) and elastic ( B) adjoining wall cladding with enclosing structures

Figure 10 - Structures of wall cladding units in places of window openings ( BUT) and temperature seam ( B)

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

5.2.21 In places where partitions interface with pipelines for water supply, steam and water heating, it is necessary to provide for the installation of a sleeve made of non-combustible materials, which ensures 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 crossing fire partitions with air ducts, 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 lining of external walls

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

5.3.2 Between the cladding and the wall, a layer of heat and sound insulating material can be additionally provided, the characteristics of which must be taken according to the results thermotechnical calculation on SNiP 23-02 from the condition of the inadmissibility of moisture accumulation in the wall for the annual period and the limitation of moisture for the period with negative average monthly temperatures.

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

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

5.3.5 The gaps between the cladding and the wall at the junction with the windows are recommended to be covered with gypsum-fiber sheets GOST R 51829 , which are attached to the cladding with dowels through a galvanized channel 40´ 75 ´ 40 ´ 2.0 mm. The channel, put on the end of the plate, is fixed 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 locations of the expansion joints of the walls when facing them with gypsum boards with additional insulation heat-insulating material in the vapor barrier layer, it is necessary to provide for a compensator device (Figure ).

5.3.7 A layer of additional thermal insulation is recommended to be fixed to the wall with glue or expansion dowels.

5.3.8 When using the cladding as a fire-retardant element that 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 - according to GOST 30403.

6 TECHNOLOGY OF INSTALLATION AND DEVICES OF STRUCTURES FROM gypsum tongue-and-groove slabs

6.1 Installation of partitions and linings

6.1.1 Installation of partitions is recommended to be carried out during the production process. finishing works. Wall cladding works are also carried out in the process of finishing work, when the wiring of electrical and sanitary systems is completed.

6.1.2 Prior to the installation of partitions and claddings, all construction work associated with "wet" processes must be completed. Installation must be carried out in dry or normal humidity conditions at an air temperature in the room not lower than +5 ° C before the installation of a clean floor.

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

6.1.4 Before starting work on the installation of 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, using a plumb line, 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 a cement-sand mortar of a grade of at least 50.

6.1.7 When a partition or cladding is elastically connected to the enclosing structures, an elastic gasket is glued to the latter at the junction points with mounting adhesive. In this case, it is necessary to ensure the horizontal position of the gasket, on which the lower row of plates should be installed. The installation of the plates should be started after the adhesive has set.

6.1.8 In the case of laying the slabs with the groove up, all the slabs of the first row must be removed with a peeling planer.

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

6.1.10 When laying subsequent rows in the groove of the bottom row of plates and in the vertical end groove of the installed plates, a mountingglue and each plate is upset with a rubber mallet. Excess glue that has come out is immediately removed and used in the future.

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

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

6.1.13 For the last row, boards with chamfered edges should be used and, if necessary, they should be cut to match the configuration of the ceiling surface.

6.1.14 The slabs of the upper 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 the obligatory observance of the spread of the end joints.

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

6.1.16 Openings with a height of not more than 1/4 of the partition height and the area of ​​which does not exceed 1/10 of the partition area may be made by cutting out in the mounted partition. Large openings are recommended to be made during the installation of the partition. With an opening up to 800 mm wide, if only one row of plates is placed above it, a mounting structure is fixed above the opening, ensuring the design position of the plates before the adhesive sets in the joints (Figure ). With a larger opening width above it, it is necessary to provide for the installation of a jumper with a support depth of at least 500 mm.

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

6.1.18 When forming an angle and at the intersection of partitions or facings with each other, the slabs should be laid with overlapping joints below the row (figure ).

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

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

Figure 11 - Scheme of installation of the mounting structure when arranging a doorway

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

6.2 Installation of electrical and low-voltage wiring and pipelines

6.2.1 For electrical and low-voltage wiring in a partition or lining of gypsum tongue-and-groove plates, strobes are made with the help of a furrower, in which the wiring is sealed with gypsum mounting adhesive. In this case, the step of the gate must be at least the thickness of the plate, the depth is not less than 1 cm, and the thickness of the plate behind the gate should not be less than 40 mm or 50 mm for plates with a thickness of 80 and 100 mm, respectively (Figure ).

6.2.2 For sockets, junction boxes and switches in the partition or lining, holes are drilled with an electric drill with a special nozzle.

6.2.3 Under pipelines large diameter strobes are also cut out, followed by embedding them with gypsum mounting adhesive. The amount of embedding and the distance between the strobes 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. At the same time, after the installation of one layer of the gypsum partition, all engineering communications are fixed to it, and then the second layer of the partition is erected. Pipelines must not come into contact with partition plates.

7 SURFACE FINISHING

7.1 The surface of partitions and facings made of gypsum tongue-and-groove boards can be preparedbe painted, wallpapered, clad ceramic tiles or decorative plaster.

Picture 12 - The design of the attachment points of the door frame in a single-layer partition with an opening width of up to 900 mm ( BUT), up to 1600 mm ( B) and up to 2000 mm ( IN)

Figure 13 - The design of the door frame attachment points in two-layer partitions with an opening width of up to 900 mm ( BUT), up to 1600 mm ( B) and up to 2000 mm ( IN)

Figure 14 - Scheme of the layout of plates in the node of the intersection of partitions

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

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

The final finishing preparation of the surface should be carried out using the Knauf-Finishpasta™ putty compound, which is applied to the surface with a wide spatula in a thin layer. After drying, the surface is polished.

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

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

7.6 Finishing the surfaces of partitions and facings made of moisture-resistant gypsum tongue-and-groove boards in rooms with a wet regime should be done with ceramic tiles on a previously applied layer of Knauf-Tiefengrund™ primer.

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

7.8 After the waterproofing mastic or primer has dried, a notched trowel is used to apply the Knauf-Fliesenkleber® tile adhesive, TU 5745-012-04001508-97, on which ceramic tiles are laid.

7.9 The seams between the slabs are filled trowels, for which it is recommended to use the composition "Knauf-Fugenbunt ™".

8 BASIC WORK SAFETY RULES

8.1 The construction of structures made of gypsum tongue-and-groove boards 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 having a certificate for the right to perform work should be allowed to install structures using gypsum tongue-and-groove plates.

8.3 Workers must be provided with overalls and personal protective equipment.

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

8.5 The tools, equipment, fixtures and fixtures used for the installation of structures used in the performance of work must meet the safety conditions for the performance of construction and installation works. 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 means of transport in accordance with the rules for the carriage of goods in force for this type of transport.

9.2 Transportation of plates is carried out in a packaged form. Transport packages are formed from plates of the same type and size. Packing schemes are established in the technological documentation.

By agreement with the consumer, it is allowed to transport plates in unpackaged form.

9.3 Transport packages of plates during storage at the consumer 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 plates, measures must be taken to exclude the possibility of damage and moisture. Loading of plates in bulk or unloading them by dropping is not allowed.

9.4 In the period of established negative temperatures, in order to prevent the plates from freezing together, the packaging is carried out using a gasket material between the plates.

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

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

9.7 It is possible to transport heat and sound insulating materials by any means of transport, provided that they are protected from moisture.

9.8 Storage of heat and sound insulating materials should be carried out 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 means of transport packed in boxes or boxes with labels and stored under a canopy.

10 ACCEPTANCE OF ASSEMBLED STRUCTURES FROM GYPSUM GRID PLATES

10.1 The design of partitions and linings made of gypsum tongue-and-groove plates is recommended to be adopted in stages with the execution of relevant acts for hidden work (laying electrical and low-voltage wiring, laying heat and sound insulation materials and etc.).

10.2 The mounted structures of partitions and claddings must have even and smooth surfaces without dirt, glue and putty compounds, unfilled joints and shells. Check for cracks and broken corners. Heads of screws, bolts and anchor fasteners facing the front side of the structure must be recessed into the body of the slab.

10.3 Surface defects of partitions and facings should not exceed the values ​​given in the table .

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

11 BASIC RULES FOR TECHNICAL OPERATION OF STRUCTURES FROM GYPSUM GROUND PLATES

11.1 The type of fastener used must be selected depending on the mass of objects hung on the partition or lining.

11.2 Lung attachments and interior items are attached to partitions and facings made of gypsum tongue-and-groove plates with the help of anchor plastic 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 (for elastic tension) on the dowel, kN;

B - maximum mass of the attached object, kN;

table10.1

Structural defects	Permissible deviations in finishing
	simple	improved	high quality
Surface irregularities (detected when applying rules or a 2 m template)	No more than three deep or convex up to 5 mm	No more than two deep or convex up to 3 mm	Not more than two deep or convex up to 2 mm
Deviation of the plane of the structure vertically	15 mm for the entire height of the room	1 mm per 1 m, but not more than 10 mm for the entire height of the room	1 mm per 1 m, but not more than 6 mm for the entire height of the room

table 11.1

Company manufacturer	brand	Diameter, mm	Depth, mm
Fischer-Duebel S	S8	8	55	0,12
	S10	10	70	0,24
TOXCombi-Duebel	combi 10/50	10	60	0,30
	Combi 12/60	12	70	0,46
Upat U Ultra-Duebel	U8	8	55	0,20
	U10	10	65	0,35
	U12	12	75	0,50
HILTI Universalduebel HUD	HUD8	8	55	0,15
	HUD10	10	65	0,30

Figure 16 - Attachments for communication equipment to a single-layer partition ( BUT) and two-layer ( B)

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

P - number of fasteners;

but - support arm, see

11.4 Heavy attachments and objects must be fastened using special fasteners, whichIt is recommended to use loose anchors and bolts with steel washers (Figure ).

11.5 If partitions or linings are damaged during operation from mechanical influences, leaks, etc. First of all, the cause of the damage must 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 standing water, for which, at the bottom of the partition or cladding, control holes are first drilled with a drill, and then, if necessary, an opening is cut out necessary to repair the damaged pipeline.

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

APPENDIX A

LIST OF REGULATORY DOCUMENTS REFERRED TO IN THIS CODE OF RULES

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

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

SNiP 23-02-2003 Thermal protection of buildings.

SNiP 2.03.11-85 Protection building structures from corrosion.

SNiP 2.01.07-85* Loads and impacts.

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

SNiP 23-03-2003 Noise protection.

GOST 10702-78* Rolled products from high-quality structural carbon and alloy steel for cold extrusion and heading. Specifications.

Today there is a wide variety building materials, from which you can make high-quality and durable partitions in an apartment or a private house. But often the choice of a particular material depends on the type of building structure. If the floor is reinforced concrete slabs between floors, then it is important to make interior partitions as light as possible.

The most optimal thing that interior partitions can be made of is light, but today such masonry material as gypsum block and foam block is of considerable interest. Various blocks are a new tool for the quick and inexpensive construction of partitions in an apartment or a private house, however, during work, nuances arise that must be observed without fail. First of all, consider how to put gypsum blocks on the mortar.

Choosing glue or mortar

First of all, we will find out what solution is required for laying gypsum blocks. If there is not enough money for a special gypsum-based acrylic adhesive, since it is quite expensive, then you can use ordinary tile adhesive or cement mortar in a 1: 3 ratio and add PVA glue to it. With thorough stirring, a very elastic and finely dispersed mixture is obtained, which is easily spread with a spatula. Its excess is squeezed out when the block is installed in place. Mortar is much easier to work with because its setting speed is much slower than gypsum adhesive, which can only be worked with for the first 60 minutes.

Often the question arises: “How to put gypsum blocks on glue?” When it becomes necessary to build a partition. In fact, glue is the best remedy for the construction of partitions from gypsum blocks. It freezes faster, which allows you to carry out in just one day complete installation with all necessary communications. And after an hour, the surface can be easily cleaned by any mechanical means, but this is usually not required if tongue-and-groove plates were used.

Slabs or block

Before starting a description of the technology for erecting a partition, one should decide on the choice of the type of material and its advantages. A gypsum wall block is, as a rule, a parallelepiped ideally straight on all sides from a mixture of gypsum, cement and plasticizer. Each product acquires good geometrical parameters due to the production technology without the use of high temperatures, as, for example, in the production of foam-gas-silicate blocks. But at the same time, gypsum blocks have the best indicators in terms of thermal conductivity and strength. High thermal insulation properties of the material were achieved through the use of sawdust, they also strengthen the structure of the block.

Good strength indicators made it possible to produce tongue-and-groove slabs, that is, blocks 8-10 cm thick and 66.7 x 50 cm in size with a groove and a ridge for joining together during installation. This is the main difference between slabs and blocks.

Gypsum tongue-and-groove partitions are obtained perfectly even on both sides and during the installation process there is a low probability of curvature from the level even by a millimeter.

If we compare by price parameters, then the laying of partitions from tongue-and-groove plates will cost a little more, because their cost is higher than blocks. But it is impossible not to notice the advantages of working with them. The comb securely enters the groove and at the same time forms a high-quality connection of all blocks with each other without the slightest deviation along any planes.

Laying gypsum blocks, although it will cost less, will require more adhesive mixture. It is more difficult to expose it on planes, which is fraught with curvature and distortions. The main thing in technology is the observance of levels, therefore the wall from the block turns out to be even and of high quality. But you should take into account the advantage - a wall of gypsum blocks, as a rule, is thicker and has the best performance strength and soundproofing. In terms of weight, of course, it is heavier, so hollow gypsum blocks can be used as an alternative.

Drywall installation technology

There are several technologies for laying gypsum blocks. Someone prefers to use glue, and someone solution. You can really use either method, but only certain conditions must be met. Before considering how to put gypsum blocks on one or another tool, you should familiarize yourself with the general technology for performing a full range of work.

To make it clearer how to lay gypsum blocks, the photo below.

Interroom partitions made of tongue-and-groove plates must be even and durable. And in order to achieve this, it is necessary to follow the installation technology.

In order for the installation of the tongue-and-groove partition to be of high quality, it is necessary to allow the blocks to get used to the temperature at which it will be laid in place. To do this, it is recommended to bring all the material into the room and let it get used to at least 1 day. The block, due to the filler in the form of sawdust and plasticizer, slightly expands with increasing temperature, taking the final shape. Compliance with this condition will eliminate the likelihood of cracks on the next day after the installation of the blocks.

The first step is to mark the place where the partition will be installed. Here you can use both a regular tape measure, a plumb line and a long level, as well as a laser device. When performing large-scale work, it is advisable and much faster to use a laser level.

Well, at home, when there is nowhere and there is no need to rush, it is quite possible to get by with familiar tools. The tongue-and-groove partition, as a rule, turns out to be perfectly flat on all sides, so neither plastering nor plasterboarding is required. Unless, of course, additional insulation is needed. Therefore, when marking the master, this is taken into account and a distance equal to the thickness of the additional finish retreats from the original line.

Installation of tongue-and-groove partitions should be carried out only on a high-quality and conscientiously prepared surface. Therefore, with the help of a broom, brush and other tools, we carefully sweep the installation site of the partition. Also, the installation of partitions from tongue-and-groove plates provides a perfectly flat surface. To obtain this, the mechanically cleaned place is treated with concrete contact (acrylic or any other primer for concrete). It is recommended to do this in two coats for better adhesion of the leveling coat.

If the house has reinforced concrete floors, this does not mean that the surface is perfectly flat. In order to correctly lay gypsum blocks, deviations should not exceed more than 3 mm, in other cases the surface must be leveled.

If the leveling layer is very thin, then a self-levelling mixture can be used. To do this, you need to install something like a formwork and pour it with a solution, using a special roller with needles, roll out the solution evenly over the entire plane.

If the tongue-and-groove partition will be installed on an excessively curved surface, it can be leveled with a semi-dry screed. To do this, cement 500 grade and sand sifted through a fine sieve are mixed in a ratio of 1: 3. Next, water is added, and the solution is mixed until a uniformly moist (not wet) mixture is obtained. The process should not be described further, because it is not from this topic. After leveling with a semi-dry screed and its complete drying (1-2 days), the surface must be treated again with soil (concrete contact). Everything, the surface is ready, you can proceed with the installation.

It is necessary to make sure that the partition of tongue-and-groove plates does not vibrate and does not resonate, thereby increasing the soundproofing properties of the room. To do this, it is necessary to provide a damping layer at the point of contact with the floor and wall. To accomplish this, you can use a cork backing tape 15 cm wide and 4 mm thick. It compensates for all kinds of fluctuations and the degree of expansion of the partition when the temperature changes.

The tape can be mounted on the same adhesive as the plates themselves. For this, a certain amount of it is diluted, it is better not to mix it with water anymore, because anyway it will become unusable even before the blocks are laid. Using a spatula, a thin layer is spread on the prepared surface, the tape is carefully rolled out and pressed against the base. Let the glue dry for at least 1 hour.

Everything, the damping layer is ready, you can install tongue-and-groove plates for partitions.

For better orientation relative to the level, physical rails can be used, that is, with dowels, attach the guides to the wall and floor on both sides of the partition. This will minimize the chance of deviation during installation.

At the next stage, we will consider how to properly lay gypsum blocks. For more reliable fastening of the plates to each other and better geometry, the walls of the plate must be laid with the groove up. To do this, using a conventional hand hacksaw, the lower comb is carefully removed. Here it is important to leave the surface perfectly flat, without protrusions, so that it fits snugly on the damper substrate.

The mortar for laying gypsum blocks or glue should be spread with a spatula immediately on the tape, and then on the blocks. It takes a little, because when docking, the excess will still be squeezed out by the weight of the plate.

Shrinkage of each plate is carried out using a hammer with rubber pad or through a bar until the surfaces are in full contact.

Laying tongue-and-groove plates should be carried out in a checkerboard pattern or with an offset of each row relative to each other by at least 1/3 of its width. This will make the partition very durable and resistant to any influences.

The device of tongue-and-groove partitions necessarily includes its fastening to the wall and floor using perforated corners. It can be attached to blocks with ordinary wood screws, to the floor and walls with dowels or anchors. Fasteners should be performed at least every 1 row or block in a row.
The video below will be an excellent instruction and clarification to the article.

Doorways in the partitions of their tongue-and-groove plates

Installation of a partition from tongue-and-groove plates cannot do without door or window openings. Moreover, if the height of the partition is not more than 3 m and only 1 row of plates will be laid above the opening up to 80 cm wide, then the jumpers can not be used. It is enough to make a small half-frame with the width of the opening from wooden bars and attach it with self-tapping screws to the plates. Next, the next row of blocks is laid with periodic quality control of surfaces using a level.