The mesh for plaster is the key to the durability of the work performed. Plastering walls is a traditional leveling and finishing technology. And not only - plastering is also performed for the purposes of fire protection and sound insulation, during repairs, as a decorative finishing layer or as preparation for finishing... but most often you need gypsum, cement-sand and lime plaster, just as finishing. The use of mesh for plaster is an important condition.

Reinforcement of products made from cement-sand mortars is a condition for their long service life, and the plaster layer is no exception. In order for the plaster layer to be durable and serve for a long time, it is reinforced by placing inside a mesh made of plastic, fiberglass, steel; there are a lot of types and materials of mesh. And you need to choose a grid based on certain conditions.

Application of plaster mesh

Although the technology is simple - you need to place a mesh approximately in the middle of the solution layer, there are some nuances. Two factors are important - the thickness of the plaster layer and the material of the surface on which it is applied. The most complex cases- This thick layer plaster - more than two centimeters, and a finishing surface that does not have good adhesion to cement - sand solutions, that is, metals, wood, some types of panels. If one or both of these factors are present, then it is important not only to ensure adhesion of the plaster to the wall, the reinforcing mesh must also be firmly fixed. It is not enough to simply lay it in the plaster layer - the result of such work can be a durable layer of plaster that comes off the wall in a single layer.

Fasteners for plaster mesh

The types of fastenings for mesh also depend on the material of the walls - concrete and brick, although they good adhesion, the mesh is secured with dowels, using large washers, to wooden walls- sometimes with nails, but it is better to fasten with self-tapping screws. If you need to plaster metal surface– choose one of the types of steel mesh, and then fix it by welding. The thicker the layer of applied solution is required, the more powerful the mesh is needed; sometimes Chainlink is used. It is clear that thin woven metal mesh is not suitable in this case.

Inexpensive and widespread meshes made of fiberglass and polypropylene are used for plasters that are not extreme. The thickness of the applied layer is 15-20 mm plus the surface material, which is combined with plaster solutions - and you can perform work without fasteners.

Preparing the surface for plaster

Preparing the surface for plaster is very important. It doesn’t matter whether the layer is reinforced or not - cleaning, dust removal, removal of all old peeling finishes, as well as treatment with penetrating primers or primers is a prerequisite. Properly prepared surface with good adhesion, flat wall, which does not require a thick layer for leveling - if all these conditions are met, then a thin, strong and elastic mesh should simply be correctly placed in the body of the plaster layer. First, a layer of mortar about 5 mm is applied to the wall, then the mesh is pressed into it wide spatula. The fine-mesh mesh holds up well in the solution. Then this first layer should dry and set. And last, finishing layer, made with the same plaster composition - completely levels the surface.

Brief overview of plaster mesh

There are a lot of plaster meshes, and new ones are appearing, from the most different materials. Gone are the days when there was only one way to strengthen plaster on the wall and ceiling - wooden shingles. It also happened that they hammered nails and pulled wire over them. But modern expanded metal and woven steel mesh, with or without galvanization, is undoubtedly much stronger and more technologically advanced.

Plastic plaster mesh

They are used not only for plaster, but also for brick and block masonry for the same purpose - reinforcement. The strength of the mesh provides reinforcement to the masonry - the mesh has high tensile strength. Material – polymers, cell size is usually 5*5 mm, release form – rolls. Technological, light in weight, and easy to cut, but at the same time very durable. Suitable for plaster layers with a small thickness - up to 20 mm.

Polyurethane plastering mesh with fine mesh

Universal, suitable for walls and ceilings, for reinforcement thin layers from solutions of any composition. Cell up to 6*6 mm. Meshes with a cell size of up to 15*15 mm are considered medium.

Large polyurethane plaster mesh

Used for mechanized finishing of large areas - warehouses, hangars, facades of public and industrial buildings etc. mesh 20*20mm, 30*30 mm, 35*35 mm, mesh is available in rolls.

Fiberglass plaster mesh

In terms of strength it has best characteristics than plastic meshes, withstands significant breaking forces. Another advantage that many types of plastics do not have is that glass fiber is absolutely chemically inert, and temperature Range its applications are practically unlimited.

Classification of fiberglass plaster mesh

Fiberglass mesh is divided into groups according to density - the higher the density in g/cm2, the stronger the reinforced layer.

For interior plaster Painting and plastering fiberglass mesh is used. The name painting speaks for itself - this type of mesh is the lightest and thinnest, with a density of approximately 45-55 g/cm2. The cell is small - 2*2 mm, 3*3 mm. Plaster mesh for interior decoration have a higher density - up to 180 g/cm2 and a cell from 4 * 4 mm, 5 * 5 mm.

Fiberglass mesh for exterior finishing and facades. Density from 180 to 220 g/cm2, cells 5*5 mm – 10*10 mm.

Fiberglass mesh for plastering on plinth

In addition to the base itself, they are also used for the part covered with soil. And also for plaster underground structures and elements. Very strong and dense mesh, for extreme conditions work and heavy loads, belong to anti-vandal building materials. The price is much higher than for thin meshes. Density up to 300 g/m2, and this is not the limit. The mesh markings indicate the density and tensile strength, as well as the purpose of the mesh.

A feature of fiberglass is its poor resistance to alkaline environments. Basic construction finishing solutions namely alkaline ones - they are classified as weak and medium alkali. Therefore, all fiberglass meshes undergo special treatment - impregnation with polyacrylic dispersions. The result is long-term protection. Unprotected fiberglass cement mortar capable of dissolving and “eating” over a period of approximately several months to several years.

Fiberglass mesh is produced both in rolls and in strips of different widths. It is possible to buy them in canvas usually meter width, and even with ready-made fasteners from corners - for reinforcing horizontal and vertical corners. Tapes are used for finishing gypsum board and gypsum fiber board cladding, and for other surfaces made of panels, sheets or blocks, including foam plastics and expanded polystyrene.

Fiberglass meshes are used not only for plastering surfaces and strengthening joints between walls and blocks of windows, doors, ventilation ducts, etc. In structural “pies” with heat and waterproofing, as well as for strengthening concrete screeds and self-leveling floors, these meshes have shown excellent performance, and very popular.

Steel mesh for plaster

Many types of metal wire mesh are produced. The cell sizes vary, usually up to 50 mm. Steel mesh is intended not only for reinforcing the plaster layer, but also for strengthening walls. Steel mesh is used very widely - both indoors and outdoors, for reinforcing and decorating surfaces made of reinforced concrete and lightweight concrete, brick and stone.

Metal woven plaster mesh

It is made by weaving from wire, like fabric from threads - twill and linen. The cells are small, from 2*2 mm to 15*15 mm, produced in rolls of a meter or 1.5 meter width. The wire used is galvanized and stainless, less often black.

In terms of strength, woven metal mesh is divided into light, medium and heavy, depending on the thickness of the wire used. The main diameters of the wires are from 0.32 mm to 0.8 mm, less often 1 and 1.2 mm.

Rabitz

They also produce galvanized and colored polymer coatings. They are used not only in the construction of fences, partitions or screens. To strengthen adobe and clay walls under plaster, an elastic Chainlink with high relief is indispensable. The cells hold large volumes of plaster, creating a monolith of reinforcing and finishing layers, and the Chainlink itself is easily attached to the wall surface.

Welded metal mesh for plaster

They are produced black, galvanized and with polymer coatings. Used not only for masonry, concrete screeds and foundations, as well as for strengthening structures with a thick layer of thermal insulation and for finishing surfaces under load.

Can be used for walls made of stone, brick and concrete, as well as for wooden surfaces, with a thick layer of plaster, uneven walls and for loaded surfaces. Welded mesh has a huge range of applications, cells from 5*5 to 100*100 mm, other sizes are possible, wire thickness is usually up to 3 mm. Output – depends on the thickness of the steel, rolls or sheets.

Mesh with galvanization and heat treatment

For plaster it is also produced special type plaster mesh– galvanized and heat treated. The grids are designed to distribute and hold solutions on vertical surfaces without loss. Cells from 10 mm to 100 mm, many standard sizes of meshes with rectangular cells. Output – rolls and sheets, depending on wire diameters.

Expanded-exhaust plaster mesh

Available in both woven and solid metal sheets 0.5 -1.0 mm thick by drawing and perforating the sheet. They are widely used, including under plaster, along with welded mesh and chain-link mesh. They perform the tasks of holding and adhesion of finishing layers, strengthening them and significantly increasing the resistance to cracking during shrinkage of buildings.

During construction, reinforcement is an indispensable material. Reinforcement allows you to strengthen a structure and extend its service life. But why do you need to reinforce walls, and what materials are needed for the work? We'll figure out.

Very often, during the construction or renovation process, you can encounter many wall defects that are quite difficult to disguise or remove completely. You can level the wall using a ball of plaster. But if there are a lot of rough irregularities or cracks on the wall, then the plaster itself will not be able to hide them. In such cases, you can use mesh reinforcement of the walls.

The reinforced surface is more elastic and better absorbs mechanical loads. Reinforcement of walls with mesh is recommended if the thickness of the plaster is 2 centimeters or more.

What is reinforcement used for?

Reinforcement is used in the following cases:

1. Uneven walls. In the process of leveling the walls, you may encounter very large irregularities, to hide which you will have to apply a large layer of plaster. But the plaster itself is very heavy and if the layer is quite thick, it can swell and peel off.
2. The wall is too flat. In such cases, the mesh helps the mortar adhere more tightly to the wall.
3. Cracks. Using mesh reinforcement, you can significantly reduce the size of large cracks, and if the cracks are smaller, then completely hide them. The mesh also prevents the appearance of cracks and microcracks if used during the construction process.

How to choose the right mesh for wall reinforcement?

There are many nuances that are worth knowing when choosing a grid. Reinforcement mesh can be metal, plastic or fiberglass.

Metal mesh is suitable for reinforcing walls with large irregularities (more than 4 centimeters). Metal works well in alkaline environment and such meshes can be used for plastering with a solution that includes cement. It is also recommended to use metal mesh if plastering will be done with clay. Only in this case it is better to take a mesh with a cell size of 50x50 millimeters. It is also good to reinforce walls that are often subject to mechanical load with metal mesh (garage walls, first floor of a building).

The use of plastic mesh is only possible if the plaster does not contain cement. Often used with gypsum mortar for finishing plaster walls. This mesh is cheaper than metal or fiberglass, but it is not durable either. When working with such a mesh, experience is required, as it quickly sags and deforms.

If the layer of plaster is thinner, then it is possible to use a fiberglass mesh. This mesh prevents cracks from opening relatively well, but they are small in size.

Mesh installation

In order to attach the mesh to the wall you will need:

• dowel-nails d=6mm and screws 4.5mm;
• perforator;
• wire for knitting mesh;
• metal cutting scissors:
• beacons.

The surface of the wall must be cleaned and treated with a primer. Cut the mesh into pieces so that the piece is the entire height of the wall. We start fastening from the bottom using dowel nails and move to the top.

To fix the mesh, you can bend the edge of the nail or use galvanized mounting tape. The mesh is also often fixed using a knitting wire. To do this, you need to drive the dowels incompletely and tie the wire onto the caps in a Z shape. After fastening the wire, the dowels are finished.

When calculating required quantity dowels, you need to know that about 16-20 pieces will be spent on 1 m².

In order for the mesh not to sag or deform, it must be stretched well and pressed tightly to the wall surface. If there are places where the mesh lags behind the wall by 1 centimeter or more, then the plaster may peel off from the surface. The joints must be overlapped. After fixing the grid, beacons are placed.

Next, you can proceed to the first layer of plaster. It must be made with a liquid solution. Apply plaster mortar it is necessary to make sharp movements so that it sticks well to the wall between the cells of the reinforcing mesh.

If the first layer has dried well, then you can apply the second. The finishing ball of plaster is made from a thicker solution. Application must be done from bottom to top.

One of the most popular construction materials is plaster. If quite recently wooden shingles were mainly used to strengthen their surface before applying the solution, today a special reinforcing mesh has taken the lead.

However, it will last a long time if all work to strengthen it is carried out in accordance with the regulations. You can use products made of metal or polyurethane, attaching them to the wall with glue, self-tapping screws, screws and other devices for the same purpose. They are usually offered in rolls and can be different sizes, their price is low.

Types of mesh

• For brickwork– made of plastic, cells measuring 5x5 mm;
• Universal:
• small – made of polyurethane, cells measuring 6x6 mm, suitable for reinforcing plaster and finishing mixtures. It has a wide functionality and makes it possible to carry out plastering work on different areas;
• medium - the structure resembles the previous material, cells measuring 13x15 mm;
• large - the cell size is 22x35 mm, large areas are reinforced with it, including storage facilities, facades of workshops and other large structures;
• Fiberglass, which is processed in a special way, cells measuring 5x5 mm. It resists chemical and temperature influences well and, thanks to its super strength, can withstand heavy loads. Has no restrictions for use;
• Plurima– made of polypropylene, two-axis oriented with cell size 5x6 mm. Chemically inert, lightweight, can be used indoors and outdoors;
• Armaflex– polypropylene plaster mesh, with reinforced nodes, cells 12x15 mm. Heavy-duty, suitable for use in places where there is increased load;
• Syntoflex plaster reinforcing mesh – made of polypropylene, cells 12x14 and 22x35 mm. Doesn't respond to chemical exposure, light in weight. Used indoors and outdoors;
• Of steel, the rods of which are soldered at the nodes, has a wide range of cells. Holds the load well, but is used only indoors, as it cannot withstand precipitation;

• Galvanized- consists of intertwined galvanized rods, soldered in knots, its cell sizes are very different. Durable in operation, used for work outside and inside buildings, used in any conditions.

Application

The fastening of plastic or metal reinforcing products to the wall being treated depends on the method of applying plaster - spraying or covering. Strengthening occurs by pressing the selected material into the bottom layer.

Ideally, before applying the final chord, attach the reinforcing layer to the dry base special devices. On a small treated area this may be the same solution.

In this situation, apply it with your own hands pointwise, only to secure the material. Then apply the mixture of the required thickness evenly over the entire base.

Choose

The main thing when choosing a material is to determine the thickness of the layer. For this purpose, construction or laser level you should find the lowest point on the ceiling, mark and calculate the last one.

The following options depend on the result obtained:

• if it is less than 20 mm and there are no cracks on the base, the material can not be used, i.e. proceed immediately to installing beacons;
• when there are cracks or the thickness is in the range of 20-30 mm, apply reinforced mesh for fiberglass plaster. Its main purpose is to protect the base from cracks;
• if the thickness exceeds 30 mm, metal must be used. It will not allow the solution to peel off from the base under its own weight;
• when the differences in the base are more than 50 mm, it is better to make a suspended or suspended ceiling.

Installation of fiberglass mesh for plastering work

When purchasing material, know that its cells should not be more than 5x5 mm, density 110-160 g/m2. It must also be alkali-resistant. The thickness of the solution is 3-30 mm.

Before work, cut the canvases to size, the size of which depends on their placement - lengthwise or crosswise. If there are cracks in the surface, place it along each seam in one piece. If they are absent, there is no difference in how you arrange the material, the main thing is that the entire surface is covered with it.

Advice: always cut the material with a margin of 100-150 mm, then you can better strengthen the joints between the wall and the ceiling.

How to attach fiberglass mesh

1. Apply the first layer of the mixture to the entire surface.
2. Place the reinforcing material on top of it and then drown it.
3. Apply a second layer of solution.

Reinforcing the plaster with mesh can be done at one time, or you can wait for the previous layer to dry.

Very often you can see how builders attach this material to the main surface with screws and staples, and then apply the solution directly over it. This method is justified only when applying putty.

The material in this situation will indeed be located between two layers. But, if the thickness of the latter is more than 10 mm, it will end up on the edge, reinforcing the wall, but not the mixture.

Below is suggested optimal instructions installation:

1. Apply markings for the beacons, drill holes in the surface and install dowels in them.
2. Install and level construction beacons.
3. Apply the first layer of mortar along the width of the reinforcing mesh.
4. Place it on a fresh layer.
5. Apply plaster to the wall nearby, secure the material on top, and so on until you have covered the desired area.

Tip: place adjacent panels with an overlap of 10 mm or more.

1. Secure metal beacons and work on them in the usual way.

Tip: apply the solution evenly over the entire surface of the fiberglass mesh; start smoothing from the middle in opposite directions. To do this, press the ends of the canvases in the corners using the or rule. Using the second spatula, smooth the mesh down along the wall.

Installation of metal reinforcing mesh

It is used with a layer thickness of 30 mm. In this case, it is advisable to use galvanized mesh, the cells of which are 10x10 mm or 12x12 mm.

You can also use galvanized expanded metal with cells 10x25 mm. The material is lightweight, even with minimum thickness solution, it easily adapts to the surface, does not leave rusty marks and is easy to cut.

Tip: before using the metal mesh, it must be degreased.

Stages of work:

1. Cut the material with metal scissors into sheets, depending on their placement on the surface. If there are seams, you should lay a solid piece of fabric along them lengthwise.
2. Make holes for the dowels using a hammer drill with a 6 mm drill in increments of 250-300 mm. Approximately 16 holes per 1 m2.

1. Insert the dowels, secure the material securely with screws and mounting tape. Place the canvases with an overlap of 100 mm. If it lags at some points on the ceiling, make additional holes.
2. Install construction metal beacons on it. You may have to apply layers sequentially, waiting for the previous one to dry.
3. Throw the first one over with a trowel, and then push it through the cells so that it catches well on the base. Spread it evenly over the surface with a grater or spatula. After it dries, apply the next one.

If you use galvanized expanded metal mesh, the minimum layer of mortar depends on its thickness. For example, for 0.5-1 mm, 5 mm of solution is sufficient.

Conclusion

A reinforcing plaster mesh made of metal, plastic or fiberglass makes it possible to strengthen the plaster on the surface. Each of them is used for its specific thickness. Working with it does not present any particular difficulties ().

In the video presented in this article you will find Additional information on this topic.

Is plaster reinforcement required?

Considering that in Russia it is customary in most cases to produce renovation work conditions and this type of repair assumes, first of all, its compliance with European standards; in the future we will also point out building regulations, adopted, in particular, in Germany in relation to work on the reinforcement of plaster.

Reinforcement of the internal plaster layer is usually done using plaster mesh. Its purpose is to reduce the impact of the underlying base on the finishing layers and minimize the risk of cracks associated with the movement of such layers.

The use of such a grid is not directly provided for by current Russian regulations. building regulations. In turn, European standards, although they do not necessarily require reinforcement of the plaster layer, indicate that the use of plaster mesh is possible in cases where there is a need to reduce the risk of cracks in plaster layer. At the same time, reinforcement of the plaster layer, within the meaning of European building standards, cannot serve as a means to prevent the formation of cracks caused by the influence of structural processes (for example, deflection of floors, shrinkage, creep load-bearing structures or their deformation caused by temperature changes) (see DIN V 18550 clause 4.3 paragraph 2 and clause 6.3).

Reinforcement of surface finishing layers, among other things, reduces visibility cracks that, due to various types of processes, appear in the underlying layers.

In accordance with SNiP, the thickness of the plaster layer made gypsum mixture, on average is 15 mm (which corresponds to European building regulations). This plaster is applied to one layer. In the case of reinforcing the plaster layer, the mesh is installed(recessed) into a freshly applied and leveled plaster solution to a height of at least 2/3 of the entire plaster layer (for example, to a height of at least 10 mm with a total thickness of the plaster layer of 15 mm) without the formation of folds and is covered even before the formation of a crust on the surface of the main layer a subsequent layer of plaster, having a height of no more than 1/3 of the total thickness of the layer (technology of applying “wet layer on wet base” or “wet on wet”) - thus, virtually all plastering work is carried out in one layer.

The plaster mesh is laid with overlap not less than 100 mm (in places where one structural element adjoins another - not less than 200 mm).

In most cases, reinforcement of plaster on the surface of walls is not carried out continuously, but only in places where various finishing surfaces and structural elements meet. When applying a plaster layer to the ceiling surface, it is recommended to apply reinforcement over the entire area of ​​such a layer.

When covering the surface of walls ceramic tiles reinforcement of the plaster layer is not performed. At the same time, the thickness of the plaster layer in accordance with European standards is 10 mm versus 15 mm, provided for subsequent wallpapering of the surface or covering with layers of paint.

Production plastering works should be done provided that massive the moisture content of the underlying base is no more than 8% (Russian SNiP) or the residual moisture is no more than 3% (V DIN, Germany).

Our Austrian colleagues once conducted detailed research and found that if gypsum plaster in new buildings subject to structural deformations (for example, in the form of shrinkage), it is possible to reduce the risk of cracks on the surface of the plaster, provided that the plaster is applied in the form of a layer 20 mm thick and reinforced with plaster mesh.

Currently, there are stacks of actual plastering and painting. The first has a cell measuring 5 x 5 mm and is used to reinforce the plaster layer. The second has a smaller cell - 2 x 2 mm and is used when applying putty. In addition, on Russian market The so-called “gossamer” - fiberglass fabric, which is also used to reduce visibility cracks that may form in the underlying layers.

As a rule, a “cobweb” is used. In this case, reinforcing putty layers with painting mesh is not used in most cases. However, such work can be performed additionally at the request of the customer or if there is such a task in the project.

If you have any questions, write! We will try to answer them.

Anyone who has worked on wall finishing knows that when applying a thick layer of plaster, the material may not be able to withstand its own weight and begin to peel off from the wall surface. To prevent this from happening, a reinforcing mesh is used. It is mounted on the wall and takes on part of the load.

In what cases is a mesh needed?

If the walls are plastered without a mesh, there is a possibility of the material peeling off under the influence of its own weight. Thanks to the reinforcing mesh, it is created monolithic slab, which can withstand any load. For plaster of different thicknesses, different meshes are created, designed for a specific load.

The use of a mesh makes it possible to form a durable layer of mortar, on which even long-term use cracks will not appear in the premises. This result cannot be achieved without the use of the described products.

It is worth noting that even with improper mixing or non-compliance with the temperature level, the mesh helps maintain the integrity of the plaster. There are special meshes for facades that are not subject to corrosion.

Types of grids

On the market building materials You can find many varieties of meshes on which plaster is applied. In order not to make a mistake when choosing, it is worth considering the main types of such products and their features:

To choose from the proposed options, it is enough to determine in what conditions the mesh will be used. If you need to plaster the facade, it is better to buy metal or fiberglass products with large cells. When applying the compositions to interior walls You can use a plastic mesh.

How to attach the plaster mesh

To understand how to properly attach the mesh to the wall, it is worth considering the two most popular types of mesh - fiberglass and metal. It is much easier to secure the first named type of product, since for this you only need to screw in several screws at an equal distance from each other. Such fastenings are sufficient to securely hold the mesh.

To keep the mesh more securely, you should roll it out across its entire width in one piece, without dividing the product into several. Vertical beacons are installed at a distance of about two meters from each other during installation. After the mesh is hung on the screws, the thrown plaster seals it to the wall, so additional elements no fastenings needed.

The installation process for metal mesh is slightly different. This is due to the fact that under own weight such a product is not able to be securely held on the mounts. Also, the cells of metal mesh are large and require additional fastening with mounting tape.

To secure it you only need to cut off a part mounting tape so that it can completely cover one cell. After cutting the mounting tape, it is fixed to the wall with self-tapping screws. You need to calculate the distance between the fasteners in such a way that the mesh does not sag on any section of the wall.

Surface preparation

Before you start plastering the walls, you need to clean the surface of dirt and old finishing materials. After finishing works there should not be any on the surface additional materials, as they can cause peeling of the plaster.

After cleaning the surface of the walls, it is necessary to apply a primer. Such compositions increase the strength of the wall and improve the quality of adhesion. They also prevent mold and corrosion. The primer promotes quick drying surface and promotes better absorption of compounds that are applied after it.

Applying plaster

After preparing the surface and fixing the reinforcing mesh to it, plaster is applied in several layers. To properly apply the composition to the surface, you should consider the features of creating different layers:

First layer. Plaster is usually applied in two or three layers, depending on the material of the walls. Concrete, for example, requires three coats. The first of them is called “spray”. The plaster at this stage has a creamy consistency and is thrown onto the wall surface in any order. The composition can be spread, but throwing it on allows you to speed up the process. After applying plaster to a certain area of ​​the wall, you need to wash the tool. After casting, the composition is leveled with a two-handed spatula from bottom to top.

Second layer. After the first layer has completely dried, you need to knead the plaster, the consistency of which should resemble dough. Then you need to throw the composition on the wall and, taking a trowel, spread it in the horizontal and vertical directions. It is after applying the second layer that the reinforcing mesh is completely covered with plaster. If it still protrudes to the surface, you need to apply the plaster again.

Third layer. At this stage, you need to level the composition more carefully so that no errors remain on the surface of the walls. Before applying the finishing layer, you need to wet the surface of the plaster.

This mesh plastering technology is universal and can be used when working with walls made of various materials.

The final stage of work

After the plaster has completely dried, it must be prepared for fixing finishing materials. To paint and wallpaper, just sand the surface with sandpaper. If there are noticeable unevenness on the wall, you need to start using the largest brand of paper. For ease of work, a piece of product is clamped on a grater. Grinding is done in a circular motion with little effort so as not to create new defects on the surface.

When the wall becomes uniform, you need to change the brand and continue grouting. If the surface will be painted, you need to take P120 paper. During the entire process, you should use goggles and a respirator to protect yourself from dust.

Since it is quite difficult to grind the surface in the corners, it is worth working either without a grater or using bars with sharp corners. If you want to make the work process easier and faster, you can purchase an electric grater. But to treat the walls of one apartment, it is not profitable to buy such a product. After sanding, you need to sweep away the dust with a brush.

Applying plaster under wallpaper and painting

Before starting work, you should determine exactly how the room will look and what will be used as finishing materials. If you choose wallpaper, you need to determine its type and thickness in advance. If they are thin, you need to apply several layers of leveling plaster. This will allow you to hang the wallpaper without any unevenness or bubbles.

For the room in which wallpaper will be hung, it is better to purchase ready-made dry mixtures, since using them you can prepare higher-quality plaster.

If plastering the wall surface occurs before painting, you should carefully prepare the wall, without leaving even small irregularities on it. The whole process is carried out in several stages:

• first, a leveling layer is thinly applied;
• then, if necessary, two more layers are applied to eliminate defects;