Partitions made of gypsum-fiber sheets in the children's room. We build partitions from drywall with our own hands How to build a partition from gypsum board

Unfortunately, today not everyone can afford to purchase spacious housing, but most of us still strive to create maximum coziness and comfort in what we have. Is there a way out of the situation when the number of rooms in the apartment is not enough to fully meet the needs of all family members? What if one room has to be used as a living room, office and bedroom? Despite the complexity of the question, the answer is quite simple - you can divide any living space into functional zones with your own hands, dividing it with frame partitions sheathed with drywall and installing a door.

Anatomy of a drywall construction

Despite the features of the interior, your design intent, as well as the location and size of the drywall partitions, all these structures, as a rule, have a standard structure. They are based on a rigid metal frame made of galvanized profile, which can be reinforced with a wooden beam at the point of installation of the doorway. To improve the heat and sound insulation properties, the crate is filled with a special insulator, the choice of which depends on the characteristics of the room and the requirements for the design. Mounted and insulated frame is sheathed on both sides drywall sheets(GKL) - a reliable, environmentally friendly and easy-to-install material, completely ready for any type of finishing.

The frame from the profile is filled with insulation and sheathed with plasterboard sheets

Application area

Frame partitions, sheathed with gypsum boards, are used to divide or zoning space in rooms of various layouts and purposes. These structures are mounted in industrial and office buildings, residential buildings and apartments, garages and outbuildings. The variety of types of drywall allows you to install partitions in rooms with high humidity and special requirements for fire safety.

Advantages

Frame structures sheathed with drywall sheets have long and with great success replaced brick or wood partitions due to a number of characteristic advantages:

• Material properties. A durable metal profile allows you to mount light partition frames of any shape and size, which do not create additional load on the load-bearing floors. The material is resistant to moisture, galvanized coating prevents oxidation and rust formation. Drywall is an environmentally friendly material that has been specially treated to improve fire and moisture resistance. It is easy to install, strong and durable, and its combination with stone wool, foam plastic or corkboard enhances the heat and sound insulation properties of the structure. GCR has a perfectly flat surface, which has unlimited possibilities for decorative finishes.
• Fast and easy installation. Plasterboard partitions are easy to install - even a novice, "inexperienced" home master in construction work can create them. Note that one of the advantages of these structures is the ability to change their location - the product is easily disassembled and reassembled.
• Laying communications. The possibility of laying electrical wiring, water supply or sewage pipelines inside the partition frame is another advantage of this design.
• Minimum cost. All the elements that make up the partition sheathed with plasterboard are of low cost. During installation of the product, piles of construction debris and dust are not formed, the permissible noise level is not exceeded and a minimum of energy is expended.

Flaws

Be sure to note the design flaws that must be taken into account when making the final decision on its creation:

• The relative fragility of drywall compared to materials for capital construction (brick, concrete, wood). This parameter can only be increased by adding skin layers.
• Low resistance of GKL to abundant exposure to moisture. The material can collapse as a result of a leak "organized" by neighbors living above.
• The impossibility of fastening massive shelves or wall cabinets on the surface of the partition. The design is capable of holding a weight of up to 70 kg per linear meter, provided that the elements are fastened to the frame parts, and the drywall itself can withstand no more than 15 kg.

Despite some shortcomings of the GKL, we note that the competent creation and proper operation of partitions made of this material will help to quickly, easily and inexpensively transform the interior of the room, giving it comfort and increasing its functionality.

Preparation for work

That's it, this short "course of theory" is over, let's move on to solving practical issues. First, let's look at the list of the necessary tools, list the materials that we need to build the structure, and also perform an approximate calculation of their number.

Tool

To install the partition, you need to prepare a set of special, but quite common and simple tools:

• Roulette, nylon cord, building level, plumb line, pencil - marking the location of the structure.
• Angle grinder ("Bulgarian") or scissors for metal - cutting profile strips into elements of the desired length.
• Jigsaw (hacksaw) with drywall files or a construction knife - cutting sheathing sheets to size.
• Impact drill or perforator - making holes in load-bearing ceilings for dowels for mounting the PN profile.
• Electric (battery) screwdriver - fastening frame parts and mounting sheathing sheets using self-tapping screws.

To install the partition, you will need a simple construction tool

Attention! For mounting the structure at the upper levels, you will need a solid ladder-ladder. Work with a metal profile and drywall implies the mandatory use of personal protective equipment - goggles or a mask, thick gloves, a respirator.

materials

For self-assembly of the partition, the following materials will be used:

1. Two types of metal profile for mounting the frame: PN - "guide" (English marking UW) - is attached to the floor, ceiling and load-bearing walls in order to design the outline of the structure. It is also used when creating a doorway. PS - "rack-mount" (English marking CW) - is installed vertically to ensure the rigidity of the frame. It is the bearing element of the crate.
2. Plasterboard for sheathing - closes the frame on both sides.
3. Insulation - fills the inner part of the structure, increasing its heat and sound insulation properties.

1 - metal profile; 2 - material for heat and sound insulation; 3 - drywall

When choosing the basic materials for the construction of a partition, it is necessary to take into account its individual parameters and the requirements that it must meet. Let's consider this question in more detail:

• Profile. Standard installation of interior frame structures implies the possibility of using material with a base width of 50, 75 or 100 mm. The choice of this parameter depends on the height of the ceilings of the room - the higher they are, the wider the profile should be and the partition itself should be thicker.
• Drywall. There are several types of material for sheathing the frame, the choice here depends only on the characteristics of the room. For example: when installing a partition in a bathroom, you need to use GKLV - a moisture-resistant type of drywall, and the creation of curved and figured structures will require the use of thinner sheets.
• Insulation material. It is selected based on the requirements for the partition and the characteristics of the room - when dividing the room into a study and a nursery, you will need a good sound insulator (corkboard or dense foam), and basalt wool, which perfectly stores heat, is useful to highlight the hallway area.

In addition to the main structural elements, to create it you will need:

• Dowel-nails (6x40 or 6x60 mm) - installation of the profile to the ceilings.
• Self-tapping screws for metal (LB 9 or LB 11) - fastening frame elements.
• Self-tapping drywall piercing screws (MN 25 or MN 30) – cladding installation.
• Sealing (damper) tape - a gasket between the guide profile and the main floors.
• Corner profile (PU) - reinforcement of the joint of sheathing sheets at the corners of the doorway.

The whole structure will be mounted using three types of fasteners

Master's advice: When purchasing everything you need, at the same time purchase materials for sealing joints between sheets and masking the areas for screwing in self-tapping screws on the surface of the skin - a reinforcing sickle tape, a primer for gypsum boards, and finishing putty.

Measurements + consumables calculation table

To avoid unnecessary financial costs and eliminate the need for additional purchase of material, you should correctly calculate its required amount. There is no difficulty in this event - you need to measure the height and length of the proposed structure and determine its main parameters (profile width and number of skin layers). Consider the calculation of the material, taking as an example a partition 5 meters long and 3 meters high with a doorway 0.8 meters wide and 2.1 meters high, with a profile frame 75 mm wide and single-layer sheathing with plasterboard sheets.

• Guide profile (UW). We calculate the perimeter of our structure (5 m + 3 m) * 2 = 16 m. Subtract from this value the width of the doorway (0.8) and get 15.2 m. It is known that the height of the partition is 3 m, therefore, we will definitely need two three-meter strips, which we will fix entirely, vertically to the bearing walls. The rest of the length of 9.2 m will be covered with three four-meter strips of the profile (12 m), and the excess (2.8 m) will be useful for reinforcing the frame at the door installation site and mounting jumpers between the posts.

  The black color indicates the UW profile, which forms the outline of the structure

• Rack profile (CW). Given the standard width of the GKL sheet (1.2 m), the vertical racks of the frame must be mounted in increments of no more than 0.6 m, so that the joints of the plates are connected on one profile, and one more element is in the middle of the sheet.

  Frame racks should be mounted at a distance of no more than 600 mm from each other

• Knowing the length of the partition, we can calculate the number of racks by dividing 5 m by 0.6 and as a result we get 8 strips 3 meters long (the indicator is determined in accordance with the height of the structure).

  The gray color marks the vertical posts of the partition frame from the CW profile

• Profile for a doorway. At the door installation site, we will have to move one post, reinforcing it with a guide profile strip, the same constructive solution will be applied on the other side of the opening. Thus, we need another three-meter rack profile (CW) and two guide strips (UW), the same length. To decorate the upper part of the doorway, a segment of the guide profile 1.0 m long will be used.

  Green color highlights two load-bearing reinforced racks, blue - lintel (upper beam) of the doorway

• Profile for jumpers between racks. To increase the strength of the frame, horizontal jumpers from the guide profile are installed between the posts at a height of 1.5 m. This will require another UW strip 3 m long and the excess that remained when calculating the contour of the partition.

  Jumpers from the UW profile are marked in blue, increasing the overall rigidity of the structure

• Drywall. As a material for sheathing, we use sheets (plates) of GKL 3000 long, 1200 wide and 12.5 mm thick. To close one side of the frame, we need five sheets, two of which will be used entirely, and the remaining three will have to be cut to size. The calculation of drywall for the second side of the partition is performed so that the joints of the sheets do not intersect, but are shifted by half the sheet. Five slabs are also needed here - two full and three trimmed.

  On one side of the frame, the sheathing sheets will be arranged in this way

  The second side of the frame must be closed with the sheets offset by one post or 600 mm

Advice of the master: Double-sided installation of GKL sheets with offset joints will increase the rigidity of the structure, significantly reducing the possibility of deformation and reducing the likelihood of cracks on the surface of the material. If you need a more durable partition - use two layers of drywall when sheathing it.

Summing up the calculations, we can conclude that to create a 5x3 m plasterboard partition with a doorway, we need:

• guide profile (UW–75) 3 meters - 5 strips;
• guide profile (UW–75) 4 meters - 3 lanes;
• rack profile (CW–75) 3 meters - 9 strips;
• drywall (GKL 1200x3000x12.5 mm) - 10 sheets.

The number of hardware (fasteners) is calculated based on the step of their installation. The maximum distance between the dowels that fasten the guide profile to the floors should not exceed 500 mm, and self-tapping drywall screws are mounted every 250–300 mm.

The engineers of the German company KNAUF - the world leader in the production of materials and technologies for frame construction - have prepared a table that will help us when performing calculations.

* Note that the number of corner profiles (PU) depends on the size of the doorway and is not related to the construction area.

Attention! To simplify calculations during the construction of a plasterboard partition, you can use a special online calculator that shows the approximate consumption of the base material and all other components.

How to do it yourself: step by step instructions

So, all the important stages of preparation for work have been completed, let's be patient, enlist the support of loved ones, get the approval of the neighbors and proceed to the installation of the structure.

Advice of the master: Any construction work using drywall should be carried out at an air temperature in the room not lower than +15 C. Installation of structures is best done before finishing the floors and painting. Before measures to create a partition, the surface of the main floors should be leveled, filling potholes, seams and cracks with putty.

Layout and layout

Before proceeding with the installation of the structure, we will determine the place of its installation and draw up a schematic plan, according to which the markup will be carried out. This stage of work is as follows:

Attention! It should be remembered that the line we have applied is a mark for attaching the guide profile. To determine the exact boundary of the structure itself, here you need to add the thickness of the drywall boards and the layer of its finish.

Lathing installation

Having finished with the markup, we will carefully check the correctness of its application and proceed to the manufacture of the metal frame of our partition:

1. An angle grinder (“grinder”) or metal scissors will cut pieces of the UW guide profile of the desired length. On the back side of the blanks, we will stick a sealing damper tape that softens sound vibrations and vibrations that will be transmitted to the structure from the main floors.

   Sealing damper tape will protect the structure from sound vibrations and vibration

2. We fix the strips along the horizontal marking line by drilling holes for dowel-nails with a puncher (in increments of no more than 400–500 mm) and hammering the fasteners with a hammer. Experienced craftsmen advise starting with the top rail located on the ceiling, since it will be easier to “shoot through” with a plumb line the correct installation of the floor profile.

   We drill holes for the dowel-nails with a puncher and hammer the fasteners with a hammer

3. Let's install vertical guides, fixing them to the bearing walls (with the same step) along the marking line and controlling the correct installation using the building level. Note that fastening a metal profile to brick walls with a thick layer of plaster will require the use of longer dowel-nails (6x60 or 8x60).

   When mounting the guides to the bearing walls, we check the vertical using the building level

4. We will form a doorway by installing racks made of a reinforced profile in the marked place. Let's measure the distance between the lower and upper part of the frame contour, be sure to subtract 10 mm from this value and cut off two strips of the CW profile of this size. There are several options for reinforcing parts - you can insert the guide profile into the rack and fix it on both sides with self-tapping screws for metal (every 150-200 mm) or you can strengthen the CW strip with a dry wooden beam, picking it up in size, inserting it inside and also fastening it with self-tapping screws.

   We insert the rack profile into the guide and fasten the structure with metal screws

5. We install a reinforced stand in the floor guide of the frame, bring the top of the strip into the ceiling (this is where a 10 mm gap comes in handy), check the strict vertical of the element with a level and fix the part with metal screws. We mount the second rack in the same way.

   When installing the rack, first install it in the lower rail, then carefully insert it into the upper

6. Let's set the racks from the CW profile with a step of 600 mm, starting from any of the load-bearing walls. The installation process of these elements completely coincides with the installation of reinforced racks - we cut the parts into strips 10 mm less than the distance between the guides, we check the verticality with a level, we perform fasteners with metal screws. Note that the step size of 600 mm should fall in the middle of the rack profile, since it is at this point that the sheathing sheets with a standard width of 1200 mm will be joined.

   The rack profile is attached to the rails with metal screws

7. We will mount the horizontal jumper (upper beam) of the doorway. We cut off a piece 200 mm longer than the distance between the reinforced posts from the guide profile strip. We measure 100 mm from each edge of the part and cut the side parts perpendicular to the base, leaving it intact. Carefully bend these segments inward and get a profile strip of the desired size with blind ends.

   Inside the upper beam of the opening, you can insert a wooden beam, further reinforcing the structure

8. We will install a jumper between the posts of the opening in the right place (we will take into account the height of the door block, as well as the possibility of further installation of the finishing floor covering), check the horizontal with a building level and fix the part with self-tapping screws for metal. This structural element can also be strengthened in any of the ways mentioned.
9. If the height of the room at the installation site of the partition exceeds 3 m, it will be necessary to manufacture and install additional stiffeners - transverse jumpers between the racks. The parts are made in the same way as the upper beam of the doorway and are attached to the CW rack profile with metal self-tapping screws.

   Option for the location of transverse jumpers in a frame with a height of more than 3 m

10. Inside the finished frame of the partition, we will install embedded elements from a profile, strong thick plywood or timber, to which it will be possible to attach hanging cabinets, heavy mirrors and sconces. After that, we will mount the electrical wiring, laying it in a special corrugated pipe, and also lay all the necessary communications and pipelines.

    The wooden beam must be fixed at the installation sites of heavy hanging cabinets and other massive interior elements.

This completes the installation of the frame, you can proceed to the next, no less important step in creating the partition.

Sheathing of the frame with the installation of heat and sound insulation

In order for the structure to reliably store heat and protect peace from extraneous noise, its insides must be filled with a special insulating material. Long-term practice shows that an inexpensive, but high-quality heat and sound insulator - mineral (stone or basalt) wool - is quite suitable for these purposes.

Mineral wool slabs will reliably retain heat, as well as isolate the room from extraneous noise

Master's advice: In order to fill the frame of the interior partition, purchase mineral wool slabs or mats of the required thickness - the material of this form of manufacture is easily cut to size and fits comfortably between the elements of the crate.

Before installing a layer of heat and sound insulation inside the structure, perform the following steps:

1. We will sheathe one side of the frame with drywall, starting from the whole sheet from the wall where the 600 mm step counting began for racks from the CW profile. Remember that when installing the GKL, it is imperative to leave a gap of 5-10 mm at the junction of the plate with the ceiling and floor. The material tends to expand with changes in temperature and humidity, and a “blind” installation in a spacer can lead to its deformation and cracking.

   The cladding is mounted from a whole sheet from the wall where the set of racks began

2. We fasten the cladding sheet to the profile, twisting self-tapping screws for gypsum boards around the entire perimeter in increments of 250–300 mm. We recess the heads of self-tapping screws into the drywall to a depth of 0.5–0.8 mm.

   The heads of self-tapping screws should be slightly recessed into the drywall surface.

3. With a jigsaw or a knife, we cut the rest of the sheathing elements to size and fasten them in such a way that the sheets are joined exactly in the middle of the rack profile.

   We join drywall sheets exactly in the middle of the profile

4. Having closed one side of the frame, we lay the insulating material inside, cutting it with a small allowance and inserting it between the racks by surprise.

   Mineral wool cut to size slabs are laid between the racks of the crate

5. We mount the cladding on the other side of the partition, shifting the sheets by 600 mm (one rack) relative to the closed part of the surface - this method of attaching the cladding will significantly increase the strength of the structure.

   We close the other side of the frame with gypsum plasterboard, shifting the sheet by one rack (600 mm)

6. We will strengthen the joints and edges of the sheets at the installation site of the doorway with an angular profile.

Attention! When mounting the cladding from the GKL, remember that the sheet must be fixed around the entire perimeter - to attach the extension or parts of a non-standard size, you will have to insert additional profile elements into the frame.

final chords

Having finished the sheathing of the partition frame, we will insert a door block into it and solve the issue of finishing the surface of the drywall. If a strict vertical was observed during the installation of the opening, the installation of the block will not cause any difficulties.

The issue with the surface finish of the skin is also solved quite simply:

Now the partition with the door is ready for any kind of finishing - it can be wallpapered, painted, ceramic tiles or decorative plaster applied - it depends only on your imagination and financial capabilities. For a more detailed acquaintance with the installation process of a frame structure sheathed with drywall, we bring to your attention the following video.

Video: How to build a GKL partition and install a door

Many years of professional experience shows that our fellow citizens are increasingly choosing drywall for the installation of additional load-bearing walls or interior partitions in their homes. This material is easy to handle and allows you to create such structures without resorting to the help of a team of builders, whose services are not cheap at all. We hope that now you will be able to do this work yourself without any problems.

Frame partitions made of plasterboard (GKL) or gypsum fiber (GVL) sheets quick and easy DIY installation. No need to pay for the work of installation specialists and minimal costs for finishing, make such partitions the most inexpensive - cheap.

The frame partition is a structure made of steel profiles or wooden bars with plasterboard or gypsum-fiber sheets screwed on both sides in one or two or three layers.

The space between the cladding sheets is filled with mineral wool for sound insulation purposes.

These partitions are light, quick to assemble and, if appropriately designed, provide the level of sound insulation corresponding to the normative, and even more.

Frame partitions in most cases provide better sound insulation than partitions of the same thickness made of stone masonry materials. As a result, the device, instead of internal walls made of stone materials, frame partitions allows increase the area of ​​​​the premises in the house.

Soundproof partition on a single metal frame with two-layer sheathing on both sides. 1 - GKL sheathing sheets (GSP, GVL); 2 - steel galvanized profile guide PN 50x40 (75x40, 100x40); 3 - rack profile PS 50x50 (75x50, 100x50); 4 - slabs of acoustic mineral wool; 5 - self-tapping screws; 6 - putty; 7 - reinforcing tape; 8 - dowel-nail; 9 - sealing tape;

Drywall partitions are installed after the construction of the house box is completed, already under the roof. If the premises have not dried out from building moisture and in rooms with high humidity, moisture-resistant gypsum sheets should be used for sheathing.

Due to the low weight (20-50 kg/m2), you can place partitions on the floor anywhere.

Partition thickness on a metal frame from a standard profile can be from 7.5 cm. up to 15 cm.(on profile 10 cm. with double lining).

Various communications can be placed inside the partition frame. For the passage of pipes and wires in protective shells, holes are cut out in the frame profiles. Some manufacturers produce profiles with ready-made holes for the passage of communications. The width of the frame profile should be slightly larger than the diameter of the pipes. Pipes must be covered with a layer of sound insulation.

For sheathing the partition frame in wet rooms - bathrooms, laundry rooms, boiler rooms, or in unheated rooms - a garage, basement, moisture-resistant plasterboard (GKLV) or gypsum-fiber (GVLV) sheets are used.

The sound insulation of frame or hollow partitions increases with an increase in the mass and density of the skin material, as well as the width and sound-absorbing properties of the air gap between the skin.

The sound insulation of walls with windows or doors is practically determined by the sound insulation of openings, usually lower than that of the blind part of the fence. Focus your efforts on increasing the sound insulation of the doors, and then select a partition wall design with adequate soundproofing capability.

The set of rules, SP 51.13330.2011 "Protection from noise", establishes the following normative indices of airborne sound insulation of walls and partitions of residential premises Rw, dB(decibel), not less than:

Specified norms are set for the mid-frequency range airborne noise 100 – 3150 Hz. To protect against low-frequency sounds, such as a home theater subwoofer, more powerful sound insulation is needed, which works precisely in the low-frequency noise range.

To ensure the necessary sound insulation of frame partitions, the following measures are taken:

1. Sheathing the frame with a double or even triple layer of sheets on one, or better on both sides, improves the sound insulation of the partition. Gypsum-fiber sheets are heavier, so the lining of this material dampens sound better.
2. Frame partitions lined with massive but flexible sheet materials will have higher sound insulation. Therefore, drywall (or gypsum fiber) sheets (density 850-1000 kg / m 3) is preferable to chipboard, MDF, OSB boards (density 700-750 kg / m 3).
3. The frame space between the cladding sheets is filled with sound-absorbing mineral wool boards. Sound insulation boards can be thinner than the frame profile width. The presence of some air gap between the plates and the casing increases the sound insulation at low frequencies. However, it is necessary to ensure the continuity of the sound-absorbing layer of the boards. Each hole or slot is an excellent conductor of sound. Special sound-absorbing slabs made of acoustic mineral wool provide an increase in the sound insulation of frame partitions, depending on their design, by 5-8 dB. The use of arbitrary heaters in soundproofing structures leads to a much smaller effect or does not have any effect on soundproofing at all.
4. Racks and frame guide profiles are attached to walls and ceilings through a soundproof elastic tape, which prevents sounds from passing to the partition.
5. The partition is made on two independent frames with only outer skin, with the laying of sound-absorbing mineral wool boards and an air gap between them according to the scheme shown below in the figure - w115.
6. Sound insulation of a frame partition made of plasterboard on two independent frames 2x50 mm always higher than that of a partition on one frame 100 wide mm.

1) acoustic mineral wool AcoustCWool Concept (54 kg/m 3 ±10%, NG) is used as a sound-absorbing layer; 3) sound insulation of the original partition w111 is Rw = 41 dB; 4) w115 - two independent frames with a gap of 50 mm.

For comparison- brick partitions made of solid ceramic bricks, plastered on both sides, have the following sound insulation index values:

• wall in two bricks (thickness with plaster 530 mm) - Rw = 60 dB;
• wall in one brick (thickness with plaster 280 mm) - Rw = 54 dB;
• half-brick wall (thickness with plaster 150 mm) - Rw = 47 dB.
• the same in half a brick of hollow ceramic bricks - Rw = 37 dB.
• half-brick wall of sand-lime brick - Rw = 52 dB.
• wall of cellular concrete blocks with plaster thickness 180 mm.—Rw=44 dB.

Many people ask the question, why is the difference in Rw so small for different partition design options?

The fact is that the sensitivity of the human ear decreases as the power of sound radiation increases. For example, if the power of sound radiation increases by about 10 times, then a person will perceive such an increase in sound volume only twice. Sound level unit dB(decibel) value is relative, it just reflects this dependence. Difference 2 dB means that the volume of the sound for a person will change twice, while the power of sound radiation will change by about 10 times.

Installation of plasterboard partitions

The width of the metal frame profile, the material and the number of skin layers are selected depending on the required level of sound insulation, as well as the diameter of the communication pipes inside the partition.

The standard width of the metal frame profile is 50; 75; or 100 mm. Gypsum plasterboard sheets for sheathing partitions are recommended to choose a thickness of 12.5 mm., gypsum fiber - not less than 10 mm.

Plasterboard sheathing is more durable and “quiet”, moisture and fire resistant than drywall. However, gypsum fiber boards are heavier and more expensive, and finishing a gypsum fiber partition is more difficult to achieve.

It is better to choose mineral wool sound-absorbing slabs with a width equal to the distance between the racks of the frame plus 1-2 cm. so that the plates fit tightly between the racks. The thickness of the soundproofing boards should not exceed the width of the frame profile, otherwise the sheathing may swell over time.

In the figure, a partition with a sound insulation coefficient Rw = 53-55 dB. : 1 - soundproof elastic tape under the ceiling profile; 2 - rack frame from a profile with a width of 75 mm.; 3 - soundproof elastic tape under the profile on the wall; 4 - slabs of acoustic mineral wool 50 thick mm.; 5 - concrete screed floating floor; 6 - soundproofing plates of the floating floor; 7 - soundproof elastic tape; 8 - sheathing of two layers of plasterboard or gypsum-fiber sheets; 9 - soundproof elastic tape under the profile on the ceiling;

Acoustic rock wool slabs 50 thick mm. stacked between the racks of the frame with a width of 75 mm. with offset - one plate is pressed against one side of the partition, and the next plate is pressed against the opposite side of the partition.

The installation of the partition begins with marking the boundaries on the lower floor or floor. With the help of a plumb line, the boundaries of the partition are transferred to the walls and ceiling. Then, on the floor and ceiling, with the help of dowels, the frame guide profiles are fixed. Dowel pitch no more than 1000 mm.

Rack profiles are similarly attached to adjacent walls. Do not forget between the profiles and the surface of the walls and floors of the building install soundproofing tape from cork, polyurethane or other elastic material.

Rack profiles are inserted into the guide profiles on the floor and ceiling and fixed with self-tapping screws in increments of a multiple of the width of the sheathing sheets - but not more than 600 mm. When used for plasterboard sheathing with a thickness of 9.5 mm. in one layer, as well as in places experiencing increased loads, it is recommended to reduce the pitch of the racks to 300 - 400 mm.

Between the rack profiles above the doorways and at the joints of the sheathing sheets, horizontal frame profiles are additionally installed. The joints of single-layer sheathing sheets, both vertical and horizontal, must be located on the frame profile.

Rack profiles along the doorway are reinforced by inserting a wooden block or another profile inside the box section of the profile.

Sheathing sheets are attached to the frame profile with self-tapping screws in increments of 20-25 cm. over the entire area of ​​​​the sheet, and not just at the edges. For the first layer of double skin, the pitch of the screws is increased to 60 cm. The joints of the plates are spaced apart. Self-tapping screws must be spaced from the edge of the sheet at a distance of at least 10-15 mm. In this case, the screws in two adjacent vertical rows (when two sheets are fastened on the same rack) must be shifted vertically by at least 15 mm.

The installation of the GKL sheets must be carried out in the same direction as the open part of the rack profile, which ensures that the screws are installed first of all closer to the wall, and when the adjacent sheet is attached, the screw screw will not bend the profile shelf inward.

The screws must enter the gypsum board at a right angle and penetrate the metal profile of the frame to a depth of at least 10 mm. The heads of the screws must be sunk into the board to a depth of at least 1 mm without damaging the cardboard.

A gap of 5 should be left between the casing and the ceiling mm., and between the skin and the floor - 10 mm. Joints of plasterboard, gypsum-fiber sheets with a seam edge are made without gaps, and with a straight edge - a gap of 5-7 mm. In three-layer skins, the sheets of the third layer are attached to the sheets of the second layer with self-tapping screws with a length of 22 mm.

To increase the rigidity of the partition and eliminate cracks at the joints, above the doorway, the joint of the sheathing sheets must be located closer to the middle of the opening, as shown in the figure, where pos.1 - joints of sheathing sheets; 2 - doorway.

After sheathing the frame on one side, communications are laid inside the frame, and soundproofing plates are laid tightly between the racks without gaps. If the thickness of the plates is less than the width of the frame profile, then the soundproofing material is laid in the grooves of the profiles and fixed with inserts made of mineral wool boards laid between the surface of the plates and the inner shelf of the profile.

The soundproofing board can also be glued to the inside of the partition wall cladding.

Communication pipes and electrical wiring are passed through the partition lining in elastic sleeves made of porous polyethylene or other elastic materials that do not allow the formation of through cracks during thermal movement of pipes. In places where pipes pass in the partition, the layer of sound-absorbing filler should not be interrupted - pipes should be covered with soundproofing plates at least on one side.

Electrical wires and cables are placed in the voids of the partition between the sheathing sheets in such a way that to avoid damage to the insulation sharp edges of the cut steel of the frame or screws during the fastening of the skin. After that, sheathe the second side of the frame.

The results of work on the installation of a soundproof partition may be unsatisfactory if careless and leave even small holes and cracks that are not filled with soundproofing material. Especially often, defects in the sound insulation layer are found at the junctions of the partition to the walls, ceilings and door frame, as well as at the installation sites of electrical boxes and communications passages.

Conjugation, connection of frame partitions with other house structures

The pairing of two partitions at an angle of 90 degrees should be done as shown in the figure. This solution provides better sound insulation between adjacent rooms.

To ensure good sound insulation in rooms with plasterboard partitions it is recommended to install a floating floor.

Details of the floating floor are connected to the ceiling and partition structures only through elastic soundproofing elements. As a result, the floating floor does not transmit impact noise to neighboring rooms and serves as a barrier to airborne noise.

The figure above shows options for joining a floating bathroom (right) and room (left) floor with a drywall partition.

Plasterboard finishing

The joints of plasterboard sheets with a profiled edge and adjoining walls are filled with a special gypsum putty. A fiberglass reinforcing tape is embedded in the putty layer along the joint.

The recesses in the places of installation of self-tapping screws are also filled with putty. After the putty has dried, the surface of the joints is polished. Provided that the joints are neatly finished, the entire surface of the sheets can not be puttied.

Walls sheathed with sheets with a rectangular edge, after sealing the joints, are covered with a continuous layer (2-3 mm.) finishing putty. For filling joints use the putty recommended by the manufacturer purchased drywall boards. Manufacturers select the composition of the putty in such a way that, subject to the technology of mounting the structure and sealing the joints, the joint is strong and durable.

Do not use materials not intended for this purpose, for example, compositions for thin-layer finishing surface puttying, for filling joints. In no case should such a replacement be made, since such compounds do not have sufficient strength - subsequently the seams will almost certainly crack.

At the corners of the partitions, a special metal corner profile is embedded in the putty layer, which strengthens the corner.

It should be borne in mind that microcracks may appear at the joints of the sheets over time, which are difficult to mask by painting. Therefore, for finishing plasterboard partitions, it is more reliable to use wallpaper, tiles or other types of finishes that are not sensitive to microcracks in the base.

Soundproofing panels instead of drywall

It was noted above in the article that the sheathing of the frame with a double and even triple layer of sheets on one, and preferably on both sides, improves the sound insulation of the partition. Moreover, it is more efficient to use multilayer and massive sheathing sheets.

Soundproof panels made of special corrugated cardboard have appeared on the construction market, which are convenient and profitable to use for sheathing frame partitions. as the bottom layer. Panels are sold under various brand names.

The panel design contains alternating layers of materials with different acoustic properties. This provides multiple reflection and scattering of sound waves. The friction of grains of sand under the action of sound waves further reduces the energy of sound.

The large weight of soundproof panels allows them to effectively reduce noise, including at low frequencies.

Dimensions of one panel 1200 x 800 (600) mm., thickness 8-22 mm. and weight 10.5 - 21 kg. Panels are easily sawn with a hand saw or power tool. When sawing, a slight spillage of the filler is possible. The edge of the cut is pasted over with construction tape. Panel weight 12 thick mm. equals 19.6 kg.(19,7 kg/m2)

The panels are fixed to the frame with self-tapping screws. After installation, the joints of the panels are puttied and glued with tape. Drywall sheets are glued to the panels with mounting adhesive in increments of 300 x 300 mm. and additionally fasten directly to the panels self-tapping screws with a pitch of 400 mm.

The figure shows the frequency response of the soundproofing of a frame partition. Light green shows the characteristics of the partition made of the PS 50/50 profile with the frame filled with acoustic mineral wool and sheathed with gypsum board sheets 12.5 thick mm. one layer on each side. Dark green color shows an increase in the sound insulation of the partition, if the partition is sheathed on one side with sheets in two layers. Moreover, as the bottom layer, use soundproof panels made of corrugated cardboard with a thickness of 12 mm.

Watch the educational film "Installation of a plasterboard partition."

Besides, You can watch and download:

• Guidelines for the installation of soundproof partitions, floors, ceilings and claddings Knauf -;
• Guide to the installation of drywall partitions on a metal frame -;
• Manual for the installation of drywall partitions on a wooden frame -.

Materials for frame partitions in your city

Dry building materials

How to attach various objects to the frame partition

You can drive a nail or screw a self-tapping screw into the drywall sheathing sheet. Such fastening will withstand the weight of a picture or a mirror weighing up to 0.5 kg.

If a hook is attached to the skin with two self-tapping screws, then, depending on the thickness of the skin layer, an object weighing 2-6 kg can be hung on the hook. the distance between adjacent self-tapping screws must be at least 30mm.

For attaching heavier objects to the skin, for example, bookshelves, expandable or spiral dowels are used. Under the spiral dowel, it is not necessary to drill a hole. It screws directly into the sheathing sheet.

Permissible point load on a special anchor embedded in a sheet of drywall, no more than 20 kg. or 60 kg. for double layering.

For installation on the bulkhead of heavier objects in the places of their attachment, an additional frame profile should be installed or a plywood panel is fixed under the casing between adjacent frame posts (for example, for attaching a wall-mounted boiler, heating boiler or washbasin).

Folding dowels of the "butterfly" type, embedded in a sheet of drywall, can withstand a point load of up to 30 kg.

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Noise isolation. Soundproofing. Acoustic. Acoustic. Vibration isolation. Noise-absorbing, Vibroacoustic. Vibration resistant. Vibration absorbing. Vibration-damping. Viscoelastic. GKL. Metal profile. Drywall

Greetings, dear reader, and a new blog visitor. To walls in children's rooms we try to make the highest demands on ecology, sound insulation and durability (after all, children love to play pranks). Therefore, when choosing materials for finishing and constructing partitions in a nursery, you need to be careful. By the way, why do we need partitions in the room itself, what should they be in terms of design and proper zoning of the room? You can read an article about this about.

Zoning the space of the children's room, a partition of GVL

Guarantee safety nursery walls where our pranksters play, in the home gym where children lead an active lifestyle, as well as in hallways and closets where we most often store bicycles, scooters, skis, skateboards and other bulky equipment necessary for the vigorous development of a child, frame structures with gypsum-fiber trim will help.

What is a GVL?

GVL is a pressed plate from a mixture of a gypsum connecting element and cellulose fibers evenly placed in it, which plays the role of reinforcement. This material is strong enough, reliable, has high refractory and soundproof qualities. It is used not only for the construction of interior partitions and interior walls.

Besides gypsum fiber sheets are widely used for finishing the slopes of door and window openings and as a finishing floor covering in rooms with normal and dry humidity conditions. And where they can be subjected to cyclic wetting and drying, moisture-resistant sheets (GVLV) are used, which guarantee high resistance to moisture penetration.

Dimensions of gypsum boards

Most requested sizes GVL and GVLV(moisture resistant): 1200 x 1200 x 10 mm and 2500 x 1200 x 10/12.5 mm. I note that the latter are more often used for finishing walls and ceilings. Due to its large format, the joints on the finished surfaces are significantly smaller. Small format sheets are more suitable for flooring, where the main thing is to create a more even base, and in small areas this is best done.

Pros and cons of gypsum fiber sheets

Pros:

• Reinforced with cellulose fiber increased strength material.
• light weight- a sheet with an area of ​​​​1 m2 with a thickness of 10 mm weighs only 12.5 kg, due to its low load, it does not create large loads for the load-bearing elements.
• Gypsum fiber sheets environmentally friendly and fireproof.
• Capable of creating comfortable microclimate- absorb excess moisture and release it when there is a lack of it in the room (for the weak immunity of children, a comfortable microclimate is very important).
• Exclusion during finishing works of most inconvenient wet processes, which are provided for when using traditional materials (and masonry mortars, concrete blocks, bricks).

Minuses:

Of the minuses, it can only be noted that this finishing material is recommended for use only in heated rooms. But it is clear that the children's room will be heated, therefore, as you can see, there are essentially no minuses for GVL sheets.

So, in the furnace? Of course, as you can see, GVL is better than the so popular GKL sheets (the popularity is more due to the fact that they appeared much earlier). However, it should be noted that GVL the price is slightly higher, and therefore those home builders who have every penny in the account, obviously can lean towards the GKL sheets, and this will not be too catastrophic a loss, because we have partitions, not a floor.

And yes, it should also be attributed to the minuses the fact that gypsum sheets are so won't bend like drywall. But this does not matter at all - after all, we have partitions, and if it is suddenly planned, then the bending strip itself can be made from GKL - strength will not suffer from this.

Note: by the way, have you considered the option of building partitions from? It is also good in its own way, easy to erect (thanks to special grooves, even those who have never held a masonry tool in their hands can cope).

Characteristics of gypsum fiber sheets

To check for GVL strength, company specialists KNAUF a number of tests were carried out. They attached a weight with a mass of 1 kg to a cable and hit it on a gypsum fiber partition. Taking into account the length of the cable and the mass of the load, the impact force turned out to be 12 kg, but there were no dents or cracks on the surface of the GVL. Only after the second blow, in the same place, was a barely noticeable trace. So you you do not have to worry about the safety of walls from GVL even if you have a future Olympic boxing champion growing in your children's room. Although, of course, this material has a tensile strength, it is not brick or concrete.

Thermal insulation material, placed in the construction of the GVL frame, increases the sound and heat insulation of walls and partitions. The most optimal solution is the construction of partitions with a thickness of 100 mm filled with mineral wool 50 mm and double sheathing GVL 2 x 12.5 mm. The sound insulation index of this GVL design is Rw = 56 dBA (according to GOST, it should be at least 41 dBA for interior partitions).

Therefore, the wall will be a sure barrier from extraneous sounds and noises. Even if there are ardent music lovers in the family, you are guaranteed peace and quiet.

Gypsum fiber sheet is a homogeneous material of pressed reinforced gypsum and paper and looks similar to drywall in appearance. GVL differs from GKL in that it is not covered with cardboard. It consists of two layers, one of which is primed.

Today, gypsum fiber is widely found in the decoration of premises for various purposes, including those with strict fire safety requirements. Sometimes it is simply irreplaceable. Due to the strong structure, GVL has increased strength and the sheet is suitable for creating load-bearing surfaces. Like GKL, they put it on glue.

The advantage of GVL is its high strength, and the disadvantage is its mass. Unlike GKL, it is so heavy that it cannot withstand strong stretching and deformation, it cannot be bent. The material is larger than GKL, thicker and more expensive. This is an environmentally friendly product with high soundproofing qualities. It is flame retardant and moisture resistant, without formaldehyde, has the highest heat capacity. GVL sheet is warm to the touch.

Where applicable, dimensions and markings

Like GKL, GVL is used for the construction of suspended ceilings, walls and floors. Due to the properties of GVL, it is used in damp, poorly heated rooms and where increased sound insulation is needed. Experts recommend using it instead of tiles, even in those rooms in which there is constant humidity.

When installing a floor, a gypsum-fiber sheet creates a strong and warm base for a finish coating on any basis - a wooden, concrete or expanded clay cushion. GKL is not very suitable for this.

The choice of GVL is wide. Gypsum fiber, which resists moisture well, is used in any room, including bathrooms and bathrooms.

Based on the size, GVL is divided into a standard and small-format sheet. Dimensions of a standard plate: length - 2.5 m, width - 1.2 m, thickness - 10 or 12 mm. A small-format sheet is smaller: 1.5 m - length, 1 m - width, and the thickness is the same. It is convenient and recommended for adhesive installation on the walls of bathrooms and toilets.

Marking with information about the longitudinal edge, the name of the type of material (moisture resistant or not), sheet dimensions, production date and company name is applied on the back of the sheet.

👷‍♂️ No less important information on the topic:

Gypsum fiber boards are a suitable material for covering walls. GVL is attached to the wall in the same way as GKL, in two ways - frameless or framed. In the first case, they are planted on glue, and in the second, they are fastened with self-tapping screws. The choice of method depends on the curvature and condition of the wall covering. Sometimes the walls have to be puttied, and sometimes a frame is required.

Read also:- just the facts!

Frameless installation of GVL

Frameless laying of GVL is used less frequently, although this method is not bad. The frame is not needed, but you will need special glue. Installation is carried out in this way:

• When the recesses are up to 4 mm deep, the sheets are immediately glued to the surface with gypsum putty. This is the so-called gypsum glue. It is applied to the sheet in longitudinal thin strips around the perimeter, and then tightly applied to the wall.

Glue for GVL is applied. In some cases, PVA glue is used, although this option is more suitable for floors.

• If there are more irregularities on the wall (up to 2 cm), glue is used. It is smeared around the perimeter and in the center of the slab with dots every 30-35 cm. When it is planned to attach shelves, cabinets or other furniture to the wall, glue is applied to the entire surface of the slab.
• If the wall is already completely uneven (irregularities from 2 to 4 cm), then strips up to 10 cm wide are first glued to it, and solid slabs are already attached to them with gypsum putty. Installation on the walls is carried out before finishing the floor. The air temperature in the room should not exceed +10 degrees. Sheets before starting work should be at room temperature for 2-3 days.

For wet rooms use moisture resistant gypsum fiber.

Before starting work, the walls are cleaned of a weak old coating. If required, it is strengthened with a primer and puttied. Installation of plates begins after drying. First, the level checks the verticality of the wall and marks the places where the plates will be installed.

Cutouts for switches and sockets are prepared in the GVL slabs cut according to the marking. The height of the GVL should provide gaps in the lower part of approximately 8-12 mm. They will close in sections after the installation of the main plates. For greater reliability, the plates are twisted with self-tapping screws.

Putty and adhesive are applied with a notched sizing trowel. The level is controlled by a stretched thread. Alignment of the plates is carried out with a mallet directly on the wall.

Plates are placed around the perimeter of the wall, starting from its corner. For facing wooden walls, self-tapping screws or roofing nails are additionally used.

Frame installation GVL

The frame of wooden slats is made with a material with a cross section of at least 3.0x5.0 cm. The transverse dimension of the vertical racks is 2.5x7.5 cm. The fastening step does not exceed the width of the GVL, the recommended one is 40 cm. 30 mm in increments of 25 cm (with a plate width of 1.2 m). Glass wool is used for insulation.

Plates are installed starting from the middle of the wall. A small gap is left between them, about 5-7 mm.

The metal frame is much more reliable. It is made of galvanized rails and load-bearing wall and ceiling profiles with a thickness of 0.56-0.6 mm, and the installation is similar to the crate for drywall sheets.

Assembly is carried out as follows:

• The surface is being prepared. The old coating is removed. True, not all masters advise this, considering it an unnecessary waste of time and effort.
• Using a level, plumb line and pencil, mark the wall. For vertical racks take a ceiling profile. Guides are mounted in areas adjacent to the floor and ceiling.

• Brackets are attached to the racks with self-tapping screws, and the alignment of the profiles is performed by a cutter with bending. Profiles are attached to the ceiling with dowels in increments of 60 cm or a little less.
• GVL are installed from the bottom up or from the top down with a small gap between them.

After installation, the resulting surface is treated with gypsum putty, the joints and the places where the screws are screwed in are completely covered.

GVL: arguments for and against

If we compare gypsum fiber with drywall, then the identity of the materials is immediately noted. They are produced from the same raw material (gypsum), using different technologies. Both materials are intended for interior decoration. They have similar, high environmental performance, equally resist moisture, and under certain conditions resist fire.

Thus, the material is chosen depending on the possibilities of the wallet and the purpose of the room. GVL has the following advantages:

• Strength. This is a strong material. It withstands severe compressive stress. Drywall in this regard is more fragile. GVL is tougher in work and does not crumble. Drywall breaks during transportation, loading and unloading and absorbs moisture.
• Moisture resistance is one of the advantages of gypsum fiber.
• GVL is more environmentally friendly. The structure of gypsum fiber does not collapse over time and does not create dust in the room.
• Not combustible, while simple drywall is processed to achieve such indicators.
• It has the highest heat capacity and sound insulation. Where insulation and silence are needed, GVL cannot be replaced by anything.

The video shows the installation of GVL in the bathroom:

Among the disadvantages of GVL include the following:

• Weak in bending and not suitable for creating curved structures.
• It is not plastic, therefore it is not widely used.

GVL is a great material. It is perfect for interior work in any room, including bathrooms, bathrooms, installation of suspended ceilings, construction of fences, partitions and similar structures.

GVL is purchased in a specialized store after consulting with the seller or a specialist who will advise the appropriate material. They buy it without any stock, since there is no material waste during installation.

In contact with

The abbreviation GVL means gypsum fiber sheet. GVL panels are an alternative to popular drywall sheets (GKL). From a technical point of view, a gypsum fiber sheet is a homogeneous building material, which is obtained using the semi-dry pressing method from a mixture of fluff waste paper with a gypsum binder solution.

What is the difference between GVL and GKL?

The difference between gypsum fiber and gypsum board is that the first material is more uniform in structure, and cellulose fibers, which are introduced into the composition of the gypsum mass during the factory production of gypsum fiber, give it rigidity.

If you look at a section of a gypsum fiber sheet, you can clearly see the reinforcing cellulose fibers. For comparison: in GKL, the reinforcing function is performed by cardboard layers (and not cellulose fibers), which cover the gypsum base on both sides. Often GVL panels are additionally reinforced, which increases their mechanical strength.

Advantages of GVL in comparison with GKL

The above-described reinforcing structure of gypsum fiber sheets provides them with a number of advantages over gypsum boards. Here is some of them:

• increased mechanical strength;
• minimal loss of strength during cutting in any direction;
• the best sound insulation;
• increased fire resistance.

By the way, the margin of safety of gypsum fiber sheets allows them to be used as flooring for subfloors.

Disadvantages of GVL in comparison with GKL

Unfortunately, GVL, like other building and finishing materials, has its objective disadvantages compared to GKL. Here they are:

• minimum moisture resistance - when dried, strength is not restored;
• noticeably reduced bending strength, which makes it impossible to use GVL in the manufacture of curved structures;
• mandatory need for pre-treatment of the sheet for finishing;
• a higher price compared to the prices for gypsum boards with the same dimensions (about 1.5 times more expensive); when purchasing large volumes of GVL, the rise in price will be noticeable.

Purpose of GVL

Based on the shortcomings of gypsum fiber sheets, we can draw an unambiguous conclusion: this building and finishing material should be used only where it is necessary to protect the wall (partition) from impact and damage, and also where it is necessary to provide a zone of increased sound insulation.

The method of erecting a frame structure in 3 steps

Step #1. Partition frame manufacturing

It is more expedient to make the frame of a partition (or false wall) with its further GVL sheathing from a metal profile. The work is performed according to the following algorithm.

1. Room layout. With the help of appropriate measuring instruments, lines are drawn on the walls, floor and ceiling, along which the frame of the future false wall will be installed.
2. Installation of the starting profile. The starting profile is fastened along the perimeter, securely fixed with anchors with metal or plastic sleeves. The anchors are screwed into holes with a depth of 4 cm or more. A sealing tape (anti-vibration rubber bands) is glued to the base of the starting profile at the points of contact with the supporting structures (ceiling, floor).
3. Opening formation. Vertical racks are installed from the side of the doorway. The edges of this opening are made of elements, which, in turn, are assembled from a pair of rack profiles nested into each other. Then, an opening jumper is made from the rack profile, which is cut and bent into the shape of the letter “p”, only inverted.
4. The final stage in the manufacture of the partition frame is the installation of vertical racks. As soon as the opening is mounted, vertical racks are installed. They are inserted both from above and from below into the starting profile, fixed with self-tapping screws. The pitch of these racks should be selected in such a way that the edges of the gypsum fiber sheet during the sheathing process fall exactly on the middle of the guide.

It is worth noting that during the installation of the starting frame of the partition, you need to think in advance and provide for laying communications (if any) inside the false wall. To do this, holes are made in the mounted racks for cable channels with electrical wiring.

Step #2. Paneling frame

So, as soon as the starting frame of the false wall is ready, it should be sheathed with GVL panels. This is done by cutting the sheet with a knife along the ruler. There are other ways, but this method is the simplest and most popular.

1. The gypsum fiber sheet is cut to size, however, it must be ensured that a gap of at least 6-7 mm is maintained between adjacent sheets during joining. This is necessary to prevent deformation of the material.
2. Once the sheet is cut to size, it is applied to the frame and leveled. If the upper edge "hangs" in the air, one more jumper should be added to the structure.
3. The next step is fixing the GVL slab on the frame using self-tapping screws designed for gypsum fiber. For reference: for standard slabs with a thickness of 12.5 mm, self-tapping screws 4 cm long are used. The screws are twisted in increments of 30-40 cm. At the joints of gypsum fiber sheets, self-tapping screws are arranged in a checkerboard pattern - this should not be forgotten.
4. First, one side of the false wall is sheathed, then heat and sound insulation in the form of stone wool can be put inside the frame, and then the GVL partition is sheathed on the other side. It is not recommended to leave the space inside the frame empty, since in the future the finished partition, when in contact with it, will emit an empty rumbling sound, accompanied by an echo and not pleasing to the ear.

Step #3. Preparing for the final finish

GVL walls are not GKL walls, so their finishing requires careful surface preparation. The structure of GVL is such that a porous gypsum board can provoke inhomogeneous polymerization of paint and adhesive composition. In general, in order for everything to work out as it should, it is better to act according to the following scheme.

1. Jointing (grouting). If the trimming of gypsum fiber sheets was not accompanied by chamfering, all existing seams are embroidered.
2. Seam reinforcement. After grouting (jointing), the seams should be treated with a primer, and then glued with a sickle.
3. Primer and putty. The surface is treated with primer for GVL. As soon as the primer dries, the structure should be puttied: first, the fasteners and panel joints are processed to mask the self-tapping screws, then the material polymerizes. Only after this, the entire surface of the gypsum fiber is covered with a thin layer of putty.
4. Grinding. The dried putty mass is polished with a grater with an abrasive mesh. A lot of dust is generated during the process, it should also be removed. Everything. The false wall is ready for finishing. Now it is possible to produce finishing, i.e. wallpaper pasting.