Documentation / 01.11.2019

How to plaster with mesh. Why do you need a mesh for plaster and which one is better to choose? What kind of plaster mesh is best to use

Plaster on the grid is effective way rough wall finishes. But what is the essence of this method, which grid to choose and in what cases should it be used? Next, we will try to answer these and some other questions related to the application of plaster on the grid.

Why do you need a plaster mesh

As you know, plaster is a versatile material, as it can be applied to almost any surface. However, not all of them have sufficient adhesion with the plaster solution, as a result of which the finish can peel off and crumble. Moreover, sometimes this process starts almost immediately after the repair.

These surfaces primarily include brick and wooden walls. Accordingly, the use of a plaster mesh will prevent this process. In addition, this material is used for another reason - it allows you to reduce surface cracking, which is especially important if the finish is done in a thick layer.

Types of mesh and their application

To date, there are several types of grids on the construction market. First of all, they differ in the material from which they are made.

For plaster, the following types can be used:

fiberglass;
Metal.

If the surface of the wall is sufficiently even and the plaster will be applied in a thin layer, then a fiberglass reinforcing cloth is sufficient to strengthen the finish. But if the walls are crooked and the thickness of the plaster is more than two centimeters, then a metal mesh is indispensable.

Unlike fiberglass, metal meshes come in different types:

Woven;
Wicker;
Welded;
Cut-and-draw.

Now consider the features of each type of material, which will allow you to make right choice when purchasing it.

Woven

This mesh is a fairly flexible fabric made of durable thin wire. It is sold in large rolls, making it quite convenient to transport.

Most often, its implementation internal works. The only thing when choosing this material, you need to pay attention to the cross section of the cell. Woven plaster mesh 10x10 mm is the most the best option.

Advice! A prerequisite for the use of this canvas is the presence of a zinc coating on it.

Wicker

Another such material is called a chain-link mesh. As it is not difficult to guess, it is performed by weaving wire.

Most often, this plaster mesh has a cell cross section - 20x20 mm. Most often it is used to strengthen large areas of walls and facades. The material is also sold in rolls, like the previous canvas.

Advice! If plastering is performed with a clay-based mortar, then a 50x50 mm plaster mesh is used for these purposes, i.e. with a large cell cross section.

Welded

Welded mesh is made by joining wire by welding. Such a canvas has symmetrical square cells.

Most often, the wire for its manufacture is galvanized or treated with a special polymeric protective composition. Usually this material is used for plastering walls subject to strong shrinkage. Thus, welded mesh can be used when plastering new buildings or buildings that stand on moving soils.

expanded metal

TsPVS plaster mesh is distinguished by a rather complicated manufacturing process. It is based on a metal sheet, in which holes are made on a special machine. After that, such a metal is stretched, as a result of which it turns into a grid.

The cells look like diamonds and are staggered. This material is used only in cases where a slight consumption of plaster solution per one square meter.

TsPVS is also sold in rolls one meter wide and of different lengths. As a rule, the price of expanded metal mesh is the highest.

The technology of applying plaster on the grid

Foundation preparation

Despite the use of a mesh, the base must still be carefully prepared before plastering:

First of all, the old coating is peeled off the wall - paint, plaster, etc.
All flaking and crumbling areas must be removed.
Then the base is cleaned of dust. If there are traces of mold or fungus on the surface, then the wall must be cleaned with a metal brush.
A layer of primer is applied to a solid and clean surface of the wall, which improves adhesion, strengthens the base and protects the wall from the effects of microorganisms.

Mesh installation

After the base has been prepared and primed, the plaster mesh can be installed.

Work is carried out in the following order:

The first step is to measure the height of the wall to be plastered.
Next, you need to unroll the roll and cut the canvas required size special scissors for metal.
After all the pieces are prepared, they should be attached to the wall. Plaster mesh installation is usually done with self-tapping screws or construction nails. The sheets must overlap by 10 cm. In order for the mesh to be securely fixed, washers or perforated galvanized tape must be used.

Note! When installing the mesh, you should pay attention so that it does not sag and does not lag behind the wall by more than 1 cm.

I must say that in most cases, with internal and, a plaster mesh of 5 - 5 mm or with cells of 10 by 10 mm is used, with the exception of some cases, which are indicated above.

Installation of beacons

After the grid is securely fixed to the wall, it is necessary to install beacons with your own hands, thanks to which a flat surface of the walls is achieved. For these purposes, a plaster profile should be used.

Installation is carried out in the following order:

First of all, the vertical position of the extreme beacon is set using two self-tapping screws. The position of the profile should be controlled using the building level.
Then the profile is fixed on self-tapping screws with a gypsum mortar, which quickly hardens.
After that, an extreme lighthouse is installed on the other side of the wall. In order for the rest of the guides to be located in the same plane, a thread can be pulled between the extreme beacons.
Next, intermediate profiles are mounted with a step less than the length of the rule, which will allow the tool to rely on them when leveling the wall.

Applying plaster

After installing the beacons, you can proceed directly to the plastering.

The instruction looks like this:

Immediately before finishing, you need a creamy consistency.
Then the first plaster layer is applied, which is called a spray. The composition is thrown onto the walls with a trowel or ladle. In the process of doing this work, some effort should be applied so that the mixture sticks to the surface, and does not slide down.

The spray layer should be about 1 cm.

After the spray has set, a thicker solution should be prepared and applied to the walls with a trowel. If the required thickness is reached, then the surface must be leveled using the rule. To do this, the tool should be pressed against the beacons and stretched from the bottom up, which will wipe the solution and remove its excess.
When the plaster sets, you need to remove the beacons and repair the remaining traces with a solution.
The final step is to align the corners. Joints between wall and ceiling, and internal corners are leveled with an angled spatula. For decoration outside corners use metal perforated corners.

This completes the plastering process, now the mesh and plaster form a durable coating on the wall that can last for many years.

I must say that we considered the installation of a metal mesh. If a fiberglass cloth is used, then it is usually glued to the wall directly during the plastering process.

Conclusion

Having dealt with the types and types of grids for plaster, as well as their purpose, it will not be difficult to choose right material. However, in order to achieve a positive effect from its use, it is necessary to follow the finishing technology, which is described above.

For more information on this topic, see the video in this article.

Fastening the mesh under the plaster must be done according to certain rules. After all, it will depend appearance and durability of the entire plane.

Today we will consider in detail how to fix the mesh under the plaster. Although this is not hard work, but it is carried out according to certain rules and they should be followed. Also on the video in this article and photo possible options performing this work.

Fastening the plaster mesh to the wall is done according to certain rules. you just have to choose the right one first. The manufacturer made sure that there was a wide choice of fiberglass mesh on the market.

You can see photo various kinds grids. But the most important thing is to choose the right one. How to attach the mesh under the plaster and how to choose the right one now we will consider in detail.

When choosing a mesh, you should pay attention to the following nuances:

The mesh should have good resistance to alkaline solutions. To do this, it must be placed in such a solution for 25 days, after which it must be tested for rupture. The reduction in strength should be minimal.
The mesh should be tested for resistance to tensile forces.. To do this, you need to take a small piece of mesh and try to crush it into a ball, after which it should take its original shape.
You should pay attention to the quality and size of the cells.
All the main characteristics of the product are indicated in the passport manufacturer indicating the tests carried out.

Attention: Do not forget to immediately purchase fasteners, because the mesh should adhere to the surface and not bulge.

Plaster mesh fixing

The maximum effect can only be obtained when the fixing of the plaster mesh is done correctly. Everything can be done with your own hands, then the price of the work will not be significant.

It should firmly stay on the plane, because it will not be light weight. If this effort is fulfilled, then it will be possible to say with confidence that the plaster layer, during operation, will not fall off the main surface and will not crack.

Despite the large number of types of this coating, the plaster mesh is fastened as tightly as possible to the plane. For this, plastic dowels with self-tapping screws can be used, to which the mesh is attached using metal, galvanized wire. In this case, the reliability of the plaster layer will depend on the reliability of the fastening of the metal mesh.

Plaster metal mesh

Let's consider in more detail how to fix the plaster mesh.

It is also presented on the construction market in a wide range:

By type: welded, woven, chain-link, perforated, reinforcing, etc.
Cell shape and size, as well as location and structure.
According to the size and diameter of the metal wire.
By the presence of coating (galvanization, polymer).

Attention: The range of metal mesh is so large that it can be used in almost all areas of repair and construction work, in which reinforcing mesh is indispensable.

Metal mesh (see. Plaster steel mesh - types and applications) is able to retain its original shape both during its laying and during operation. This allows you to get better plaster surfaces with an extended service life. All reinforcing meshes from other materials do not have such high stability, which narrows their scope.

Based on the foregoing, we can safely say that the metal mesh is more versatile, and it can be used:

Practically on all types of surfaces and with the use of any kind of plaster mixtures and mortars, while the plastic mesh is intended for use with gypsum plasters, it is not recommended to use it with all other types of mixtures.
With various layers of plaster solutions applied to the surface. With its help, you can eliminate differences in irregularities of 6 cm or more. Other types of reinforcing meshes, including fiberglass mesh, are allowed to be used with an application thickness of not more than 3 cm.
If a plaster mesh is used made of galvanized metal or with polymer coated, you can get a reliable and durable surface. This mesh has excellent performance in terms of moisture resistance, wear resistance, strength, etc.

The sequence of fastening the metal mesh:

First you need to measure which segment of the grid you need to fix. As a rule, this will be the size from the floor to the ceiling. This size is transferred to the mesh, after which it is cut with metal shears (if it is a thin mesh) or using a grinder, if it is a chain-link mesh, with a wire thickness of 2 mm or more.

Attention: If the mesh is attached to the wall, then the upper edge is fixed first. To do this, you can drill a couple of holes, insert a dowel into them and screw in a self-tapping screw. Available with a wide hat. After that, the cut off piece of mesh is simply put on the screws and pressed against the same screws. After that, it can be thoroughly fixed without problems.

If the grid needs to be fixed on the ceiling, then everything is much more complicated here and one person cannot cope with it. Fastening can be done according to the same scheme, but first the four corners of the mesh are fixed, after which it can be finally fixed without outside help. But if you take it in general, then you can’t do without an assistant.
The fastening frequency depends on the size of the cells and the thickness of the mesh material. In all attachment points, the mesh can come into contact with the main surface, and in the intervals between attachments, it must move away from the surface, otherwise the reliability of the plaster layer will be reduced.
Before strengthening the mesh, all debris is removed from the surface and dust is swept away. Before applying the plaster layer, the base surface should be moistened for better adhesion.
A properly fixed mesh should be stretched like a string and not vibrate in places where there are no fasteners, otherwise voids may form under the mesh during operation, which will have a negative impact on the final result.

The use of fiberglass mesh

Now let's talk about how to fix a plastic plaster mesh.

If there is a need to strengthen the surface layer of plaster, regardless of the type of building.
It is used for reinforcing waterproofing layers of roofs and floor slabs.
It is necessary to enhance the mechanical strength of self-levelling floors.
It can be used to reinforce plasters designed to prepare the surface for laying ceramic tiles.
It will be needed to reinforce plaster surfaces applied to materials with different coefficients of thermal expansion.
It is very important when applying a plaster layer on the lower plinth of a building.

The technology of laying the reinforcing mesh is very simple and anyone can do it:

Plaster meshes with a density of 145 g per square meter and mesh with a density of 165 g per square meter are very popular among builders. These meshes are mainly used to reinforce the plaster layers of facades of various buildings.
The consumption of the reinforcing mesh is 1.1 m per 1 square meter of area, with a mesh width of 1 meter. Fiberglass mesh is used to reinforce plaster layers in places where completely different materials are used, such as brick and wood. It allows you to make quality work in places where slight deformation changes are possible, in the presence of plastic corners, in places where the plaster layer adjoins the insulating materials of window and door openings.
The technology of laying fiberglass mesh requires that it be sunk into a fresh layer of plaster to a depth of about 5 mm. In this case, it will be in the middle of the applied layer of plaster, which guarantees high strength and solidity of the plaster layer.

How to fix fiberglass mesh

Fiberglass mesh is no less popular than metal. Even the insulation of the building with foam plastic is not complete without the use of fiberglass mesh.

So:

Such a grid is mounted after the fixing of the foam plates to the base surface is completed.
A rough layer of plaster is applied to the surface of the foam. Work is carried out in small areas, as the mixture tends to quickly solidify.
The mesh is cut to size and applied to the surface that has not yet hardened. After that, a wide spatula is taken, and the mesh is leveled and, as it were, pressed into the freshly applied putty or plaster.
After that, you should give time for the surface with the mesh to grab well. Usually on the second day, work continues on this surface. First of all, you need to walk along the surface with a spatula and remove all burrs or bumps.
When installing the grid, make sure that each strip is on the previous strip with an overlap of 15-20 cm, otherwise cracks may appear during operation.
After the excess debris is removed from the surface, you can start applying the finish layer.
Here is a particular case of the use of fiberglass plaster mesh, but the scope of its use is much wider.
When carrying out repairs in private houses with a solid service life, there is nothing to do at all without a fiberglass mesh. This applies to both walls and ceilings.
When carrying out repairs in multi-storey buildings, and especially during puttying work on the ceiling, where there are significant differences due to unevenly laid floor slabs, it is also recommended to use fiberglass mesh. There are cases when it does not help and you have to install drywall.
If the walls are gypsum blocks and there is a need to cover them with a layer of putty, then the plaster mesh will not be superfluous.

Now you know how to fix the plaster mesh to the wall. The instructions will help you choose it correctly and then secure it with high quality.

When plastering surfaces, a reinforcing mesh is often used. The material allows you to apply a thicker layer of repair composition on the building base. To obtain a satisfactory result, it is recommended to familiarize yourself with the types of mesh, the selection rules and how the walls are plastered with a mesh, and video instructions for the work.

Wall plaster mesh is a material that is used to increase the strength of plaster, as well as prevent cracking, peeling of material and distortion finishing. The mesh improves the adhesion of the building substrate and the repair mortar. The material increases the resistance of the plaster to moisture, temperature changes and mechanical stress.

Do-it-yourself plastering of walls with a grid can be performed for:

facade finishing;
floor screeds;
fixation on the surface of materials with low adhesive properties, which include polystyrene and other heaters;
hardening of surface areas where there is a risk of material peeling - slopes, corners and openings;
applying the product in a thick layer - more than 2 cm;
building shrinkage prevention.

Material types

The grid for walls under plaster has several varieties. To choose a material, it is recommended to familiarize yourself with the characteristics of each.

Polymer mesh

These are plastic nets. Such material is in high demand among finishers. The product is available with cells of different sizes. Used even for uneven surfaces with big fluctuations. The advantage of the product is an acceptable price.

Metal grid

This network is mainly used for exterior finish. The material has increased strength, it is used even for uneven walls with big fluctuations.

Metal meshes are divided into several types:

Woven mesh is a thin wire product that has increased resistance to mechanical damage and flexibility. It is applied to reinforcing of surfaces in and outside of the room. Professionals advise using a grid with a cell size of 1x1 cm.
Woven mesh. Another name is net-netting. Masters use it to reinforce the construction base of a large area. Cell dimensions are 2x2 cm.
Welded - a mesh that is made of wire by welding. The rods are arranged perpendicular to each other and are welded at the joints. Cell dimensions - 2x2 or 3x3 cm. The material is used if the object shrinks.
Expanded-drawn is a mesh of sheet metal. The material is made by rolling sheets on a special machine. The grid maintains putting plaster with a thick layer. Distinctive feature grids - an increase in the bearing capacity of the object.

fiberglass mesh

Fiberglass mesh for plastering walls is a thin material with small or large cells. The first type is used for interior decoration. The mesh is fixed to the surface without large drops and defects. Usually the material is used for gypsum compositions. A large mesh fiberglass product is used for facades. Such materials can withstand increased stress.

PVC mesh

It is a thin fiber made of polyvinyl chloride. A distinctive feature is increased resistance to chemicals. How to plaster on a PVC mesh is presented in the video tutorials.

What kind of plaster can you use mesh for?

If we talk about what kind of plaster the mesh is used for, then it all depends on the composition of the product and its effect on the material. If the product contains aggressive chemical compounds, then it is recommended to use a PVC mesh. For other materials, gypsum, cement-sand and cement-lime plaster are suitable.

How the grid is fixed

How to lay the plaster mesh depends on what type of material is used for reinforcement.

Installation of fiberglass mesh

Such material is fixed on the repair solution. A layer of plaster is applied to the prepared surface and, without waiting for it to harden, the mesh is laid. From above, a wide spatula is carried out so that the material drowns in the solution.

Before starting work, the mesh is cut into small pieces for ease of fixation. Then they overlap each other.

With the help of self-tapping screws - another option for how to stretch the plaster mesh. The method is relevant if the material is attached to a surface with complex geometry. If the grid is fixed on a wooden construction base, then a construction stapler is used.

Polymer mesh fastening

There are two ways to stretch a plaster mesh made of plastic.

for repair solution. The plaster is applied to the surface in a thin layer, after which a mesh is attached to the material. A wide spatula is used along the surface to drown the product in the solution.
Using self-tapping screws as described above.

Installation of a metal mesh

The mesh for plastering walls made of metal is attached in the following sequence:

cut into small pieces, taking into account the overlaps;
treated with compounds that prevent the occurrence of corrosion;
holes are made in the building base - dowels are fixed in them;
fastening the mesh starts from the upper corners - the material is applied to the surface and screwed with self-tapping screws, screwing the fasteners into the dowels.

The technology of plastering walls on a grid suggests that the gap between the wall and the metal product should be 3-5 mm.

The material is stretched so that there is no sagging (as in the photo below).

Wall preparation

Before plastering walls with mesh, the surface must be prepared: dismantle the old finish, dedust and degrease the surface. Next, the base is primed. The primer is applied twice and after each treatment a break is taken to dry the product. Then the grid is fixed on the surface.

Installation of beacons

After reinforcing the building base, beacons are installed.

Instructions for fixing guides:

with the help of the building level, extreme beacons are installed and the products are fixed with self-tapping screws from above and below;
the fixation of the guides is reinforced with a gypsum solution;
a thread is pulled between the beacons;
the rest of the guides are fixed on the wall at a smaller distance than the dimensions of the rule.

Surface plastering

Grid wall plastering technology:

Knead the solution, the consistency of which resembles liquid sour cream. The product is applied to the surface with a ladle or a narrow spatula. Next, the material is distributed by the rule over the base and a break is taken to dry the solution. Layer thickness - 10 mm.
Knead the solution, the consistency of thick sour cream. The product is applied to the surface with a spatula. After the material has hardened, the guides are removed. The resulting voids are filled with mortar.
Cooking liquid solution and apply the material to the surface. They take a break in work to dry, after which they clean the surface with sandpaper with a grain of P 100, P 120 or P 150.

The video in this article demonstrates how to plaster a building base with a mesh.

Wall plastering with mesh reinforcement is a finishing stage that allows you to level even a building base with large differences. The main thing is to act in accordance with the technique of using materials.

In the course of plastering wall surfaces in any room, specialists use a reinforcing mesh under plaster to prevent peeling of the plaster layer and the appearance of cracks. A special mesh helps to strengthen the main finishing material.

Varieties

There are several types of mesh for plaster; they differ in operating parameters and features of use. To date, a number of manufacturers offer a wide range of mesh products.

There are the following varieties:

Rates

How much does a plaster mesh cost? The cost of the mesh intended for plastering wall surfaces is different. The price is formed based on the type of product and the material from which it is made, operational parameters.

Approximate price:

fiberglass woven (1x55 m) - from 750 to 8000 rubles, depending on the density;
based on polypropylene (1x30 m) - from 700 to 1200 rubles;
from steel (1x10 m) - from 50 to 95 rubles;
with a galvanized coating - from 350 to 580 rubles.

Subtleties of choice

The need to use reinforcing mesh devices arises when plastering bases made of concrete, wood and brick.

Attention! If the mesh is not used, the likelihood of peeling of the facing material increases.

The choice of the type of building reinforcing mesh depends on the type of work to be performed, the thickness of the finishing layer and the conditions of use.

What mesh is needed for wall plastering and which is better? There are several rules that help you decide: what kind of mesh and in what situations is more suitable, and in what cases you can do without the use of a reinforcing product.

For facing the ceiling surface, monolithic load-bearing structures from reinforced concrete and a plaster density of less than 10 mm, it is not necessary to use mesh stuffing.

It is desirable to install a fiberglass mesh with a finishing density of less than 30 mm.

Metal should be used with a density of more than 30 mm.

With a galvanized coating - it is considered the best option for facade work and for interior cladding in high humidity conditions.

Reinforcement with a plastic type of mesh is preferably used with a finishing layer with a maximum thickness of 20 mm, as well as in case of the likelihood of subsidence of the base. Excellent for gypsum surfaces.

To eliminate shallow cracks and mask joints, you can use adhesive tape: it will give strength to weakened areas of the base.

To reinforce slopes with a large plaster layer, a steel mesh is used, with a small layer - a fiberglass product. With a slope width exceeding 15 cm, and with a plaster layer of less than 6 mm, reinforcement is still used.

Plastering of wall surfaces on a grid

The plaster mortar allows you to level the wall surfaces, but if there are a large number of cracks or other defects on the walls, only plastering is not enough to smooth the base. In such a situation, it is recommended to use wall reinforcement with a special mounting mesh.

Reinforced surfaces become stronger, their ability to withstand mechanical pressure increases.

The technology of plastering wall surfaces includes several stages:

Foundation preparation. First of all, the old finishing material is removed from the surface, crumbling places are leveled. After removing the worn layer, the base is cleaned of dust and dirt, if there is mold, it is scraped off with a steel brush. After that, the cleaned surface is covered with a primer in order to improve the adhesion of the base to the plaster material and protect the wall from harmful microorganisms.
Reinforcing mesh installation. First of all, you need to measure the height of the wall, and then cut the canvas to the required size. Cut the mesh with scissors designed for cutting metal. The cuts are attached to the wall surface by laying them on top of each other by about 10 cm. How to fix the grid for plaster? It is fastened with self-tapping screws, fixed with washers or galvanized tape.
Installation of plaster beacons. To level the surface, it is preferable to use a profile for plaster. First, the location of the extreme beacon is indicated (vertically), they should be fixed with two screws. After that, the extreme beacon is mounted on the reverse side. To evenly space all the guides, pull the thread between the extreme beacons. Then install intermediate beacons at a distance less than the length of the rule.

On a note! Use a level to check the position of the beacon.

Plastering. Before you start applying the material, prepare a solution with a consistency close to sour cream. The primary layer is applied by spraying with a trowel so that the solution seeps through the mesh and adheres to the wall. It is important that the solution does not flow down the wall. The spray density is about 10 mm. After drying the primary layer, prepare a thicker substance and apply it to the wall surfaces with a trowel. Level the surface with a rule, pressing it against the beacons and turning it from the bottom up to remove excess mortar. After the plaster layer has dried, remove the beacons, and seal the recesses with mortar.

Corner Alignment. The joints of the ceiling surface and the walls are manually leveled with an angled spatula. The outer corners are leveled with perforated steel corners. This completes the work on plastering the walls.

We considered the option of installing a steel plaster mesh. Installation based on durable materials is somewhat different.

Fiberglass mesh installation method:

Preparation for the installation of fiberglass reinforcing material is no different from similar work for attaching steel mesh.

Attention! When applying the solution, make sure that it is evenly distributed over the surface of the grid, smooth it out - from the center of the canvas to the edges. Press the edges at the corners with a rule or an angled spatula.

The method of mounting a polymer mesh involves a number of steps.

At the first stage, the foundation is prepared. Preparatory work include surface cleaning and priming.
The next step is to measure the wall surfaces and cut the canvas in accordance with the measurements taken and add a margin of about 10 cm (for overlapping the joining of the canvases).
After that, the preparation of the adhesive-based composition is carried out.
The main stage is the application of the initial plaster layer with a density of 3-5 mm with the indentation of the paint grid into the solution.
After the initial layer dries, the surface is covered with a primer and the final layer of plaster is applied, leveling is carried out by the rule.
On the last step dried wall surfaces are sanded.

A few useful quick tips allow you to do the job of plastering walls as efficiently as possible.

The denser the plaster layer applied to the base of brick or concrete, the stronger the steel mesh to be mounted must be.
Plain steel mesh indoors with high level humidity, for example, in baths and bathrooms, as well as for external cladding, it is undesirable to use. The whole point is that steel types materials are prone to rust. It is preferable to install a mesh made of fiberglass or welded with a galvanized coating.
Before installing a metal reinforcing product, it must be degreased.
It is unacceptable to use a reinforcing mesh made of plastic for cement-based plaster, because over time the cement mixture will corrode the product.
Many people, when performing wall plastering work, first lay the mesh to the wall surface and only after that they plaster it - professionals do not advise doing this: as a result, cavities in the cells may form and the degree of adhesion will decrease.
When calculating the required number of dowels, keep in mind that per 1 sq. m. approximately 16-20 pieces are required.
When installing the reinforcing material, do not allow it to sag and peel off the surface by more than 10 mm.
For interior cladding, as well as for exterior, the best option there will be a reinforcing mesh with cells with a diameter of 5x5 mm and 10x10 mm.
The fiberglass mesh must be impregnated with a polyacrylic compound. If the mesh is not impregnated, it cannot be used with a plaster solution, otherwise it will gradually collapse under the action of alkalis.
If for finishing wooden surfaces shingles were used on the walls, it is preferable to choose a chain-link mesh.
With a layer density of about 50 mm, due to strong surface differences, it is undesirable to perform wall plastering. Preferably used for decoration Wall panels- this finishing material will help hide existing defects.
In the case of plastering small areas, a plaster mix can be used as a fastener. It is applied pointwise, after which it is evenly distributed over the entire area.

The use of reinforcing plaster mesh in the process of performing internal work on plastering wall surfaces allows you to do it efficiently. The presence of the mesh prolongs the service life of the finishing material, the main thing is to choose the right type of reinforcing mesh, based on the conditions of its use.

Video

See the features of wall plastering with mesh on the video:

Repair is a complex set of works that help to make something beautiful, stylish and comfortable out of an ordinary room. To achieve the best results, it is important to use materials correctly and choose those that are best suited for a particular type of work. The use of plaster mesh is becoming more frequent, so you need to know all its advantages and disadvantages.

Peculiarities

Modern renovation does not do without the use of plaster, because the finished walls, floor and ceiling must be completely even, be heat and sound insulated, serve for a long time and reliably. If a layer of plaster is not applied to the draft wall, then the desired effect cannot be obtained. In order for the plaster layer to hold securely, not crack or fall off, it is important to strengthen it. The grid is such a fastening mechanism.

If earlier they used more primitive and inconvenient materials to strengthen the surface for plastering, then with the advent of a grid of new materials, it became much more convenient and faster to work. The plaster mesh can be made of various materials, have a different cell size, its shape, as well as the weight of the web. All this causes a different result from its use.

If necessary, veneer outer wall, it is often taken reinforced mesh with large cells, in some cases a chain-link is used.

Almost every hardware store now has a choice of grids for plaster, which have different lengths, which makes it possible to choose the optimal amount required material for work. The principle of working with it is quite simple, which makes its use more popular for repairing all rooms in a house, apartment, office, getting excellent final results.

The stucco mesh is very important element for repair work, because with its use, the finishing of the walls lays down easier, and the result lasts much longer. After plastering using a grid, the wall will not change its properties, and therefore the wallpaper will not be threatened by gaps in the joints or along the canvas itself. Painted walls are most prone to translucence of the imperfections that appear on them, therefore, choosing this method, it is important to take care of the reliability of the wall and its fortress.

Any type of cladding will be much more confidently attached to a surface that has been properly processed, and its service life will increase several times if the surface has been reinforced and protected from different kind influences and unpleasant environmental factors.

Kinds

Due to the great popularity of the material, it was necessary to create a certain number of options that would allow puttying on different surfaces as conveniently and efficiently as possible. So, there are such types of networks as:

Masonry mesh- this is construction variety which is best laid on brickwork. The material of manufacture is polymer, and the cell size is 5 by 5 mm.
Universal- a small cell is used to reinforce the finishing and plaster mixture. It is convenient to use it in any area due to the optimal cell size, which is 6 by 6 mm.
Average universal. The material of manufacture is polyurethane, as in the previous case, but the size is different - by 13 by 15 mm.

Large universal- cells have dimensions of 22 by 35 mm and with its help you can easily reinforce a large area. It is convenient to make repairs in buildings with large dimensions.
Fiberglass. Its composition is fiberglass, which is processed in a special way. The size of the cells is not large and is 5 by 5 mm. This option easily tolerates temperature differences, exposure to chemical elements, while it has high strength and can withstand the heavy weight of the plaster. This option is most often used in work, because it is light, convenient and has no special contraindications for use.
Plurima- polypropylene biaxially oriented mesh with a cell of 5 by 6 mm. This option is also convenient to use, because it is not exposed to chemical attack, is lightweight and can be used both indoors and outdoors.

Armaflex- a polypropylene type of mesh, in which reinforced knots are provided. The cell in this case is quite long and is 12 by 15 mm. The mesh has high strength, because it is most often used where the putty layer is very large.
Syntoflex- polypropylene variety with a cell of 12 by 14, 22 or 35 mm. The lightness of the material and the lack of reaction to chemicals make it possible to work with the mesh both indoors and outdoors.

Steel variant- These are soldered twigs of steel. The size of the cells can be very diverse. It is used for interior decoration, because under the influence of precipitation, the steel will not last long and will begin to rust.
Galvanized option involves the interlacing of galvanized twigs with each other, which is then soldered. This is a durable material from which you can make surface leveling in any conditions, both indoors and out.

Reinforcing wall finish assumed the use of metal meshes, which have certain design options - these are welded, interlaced and expanded-drawn varieties. The cells can be of different sizes, which is due to a specific task, for which rods with different thicknesses and types of their connection can be used. The resulting mesh has high strength and physical and mechanical characteristics. Wire mesh is used indoors, because it does not tolerate an increased level of moisture and metal corrosion can begin under its influence.

Galvanized variety It has been used for external work for a long time and very successfully, allowing reinforcement to be carried out quickly and efficiently. The size of the cells can be very diverse, and the type of their fastening is welding.

Reinforcing mesh(also called chain-link) is used if the leveling layer is very thick and complex. During work with cement wall you can use any solution, because for such a material there are no special selection criteria, which indicates its versatility. Often brick, concrete, stone walls are trimmed with a chain-link, but it can also be used for aerated concrete and wooden surfaces.

Metal grid expanded-drawn type can be made in any way. Due to the absence of welding spots, the resulting product is durable.

A mesh is used for plastering the inner surface of walls, where the layer of material is not more than 30 mm.

steel mesh has its advantages, but progress does not stand still and has been replaced by new material. Plastic mesh belongs to modern types, it is used on aerated concrete and brick walls. In this case, it is advisable to choose a small cell, because a large one is more suitable for working on facades and a plinth. This material has no problems with a large temperature range, it can even be used to equip a heat-insulating layer.
Glass cloth variation consists of glass, in which there are no alkali impurities, but aluminum is added, which helps to significantly increase the strength of the resulting surface. Chemical influences are not terrible for this material, decay processes are also bypassed, therefore this type is used most often and is considered the main one in the work.

The polyurethane variety is also universal.. It is very convenient to use it in large rooms. But the biaxially oriented polymer mesh is the newest material of all existing in this industry. Due to its elasticity and the absence of contraindications for use, it is a universal means for communications that conduct current when working on various facades.

Polypropylene mesh is very durable and can withstand a lot of weight on itself, so it is recommended to use it to strengthen bridges and roads.

In addition, there is also sickle, with which it is very convenient to close up cracks in the walls. Due to its fiberglass composition and the ability to self-adhere to the surface, this material is now indispensable for repairing walls and their puttying.

Mounting mesh for plaster is a very convenient invention that made the repair process easier and significantly improved its results. Varieties of grids with different cell sizes help to choose the right one for a certain type of wall.

Thanks to the choice between metal and synthetic options, it is now possible to use the mesh both indoors and outdoors, which significantly improves the result of repairs and extends the life of a particular object.

Which one to choose?

If we consider metal type grids, then there are criteria by which you need to make a choice in the direction of one or another option. These include:

Qualitative characteristics of raw materials, which is taken for the manufacture of rod or wire. It is desirable to have information about the grade of steel alloy from which the mesh is made, which will show how high the quality of the product is.
The cost of a stack will be higher for small merchants, therefore, for large lots, you should contact the enterprises that deal with this. Large product turnovers make it possible to pay for it, which means not to set too high prices.
The quality of the rods themselves, the presence of a galvanized coating. Non-galvanized mesh can be used for interior work, but if it is used for exterior and not covered special composition, then soon it will rust and traces of corrosion can reach the outer layer of the finish.
You need to choose the right mesh type. If it is welded, then it will be better to keep the plaster on itself than twisted. This is important when work is being done with brick wall or from aerated concrete outside the house, where the layer of plaster can reach a significant size.
The rods must have a clearly defined thickness of the rods, therefore, when choosing a mesh, it is necessary to pay attention to the GOST standards in each package.

The plastic version of the plaster mesh is not inferior to any of the above options, it can be used on any surface, inside or outside, for the plinth and facade. The only case when it is worth turning to a metal mesh is the presence of a thick layer of plaster, which has a considerable weight; in all other situations, modern meshes will be much more convenient to use.

The use of the plastic version also implies the choice of the desired cell size, which often comes down to 6 by 6 mm, but you can choose another option depending on your wishes and ease of use.

Dimensions

Since there are a lot of mesh options for applying plaster, there are a certain number of cell sizes for each of them. In spite of big choice, there are norms that are best suited for each of the types and determine the size of the cell. Here they are:

For masonry mesh most convenient size the cell is 5 by 5 mm. The main production material is polymers.
For generic type there are several options - from a small 6 by 6 cell and a medium 13 by 15 to a large 22 by 35 mm. The material for the manufacture is polyurethane. Used for interior decoration.
For fiberglass the optimal cell size will be 5 by 5 mm, and it is made from glass cloth.
Plurima it is characterized by the same cell size, but it is made of polypropylene and can be used for a wide variety of types of work.
For metal mesh there are no clear cell sizes, it is selected for a specific type of activity, but due to its composition, it can only be used indoors.
For galvanized mesh optimal dimensions cells are 10x10 and 20x20, but if necessary, you can find more overall dimensions. This mesh is made of rods that are connected by soldering, which ensures a long service life and reliability of the finished surface.
Armaflex most often it is made with cells of 12 by 15 mm and is used in cases where a thick layer of solution is used in the work.

At the synthoflex a fairly large range of cells that can be used in work is 10 by 10, 12 by 14, 20 by 20, 22 by 35. It is made of polypropylene.
For steel mesh the size of the cells can be different, but the most popular is 20x20 mm. It is made from rods made of metal, which are soldered together. For fixing on the surface, a corner is required.
For plastic mesh There are no specific cell sizes. It is most often used for fixing polystyrene and put on glue, after which it is treated with finishing putty. After that, the process can be considered completed.

It is important to choose the right mesh for repair and pay attention to the GOST indicated on the package. It is this material that will make it possible to make good repair and guarantees the durability of the coating, otherwise you can expect any result from the repair work on the mesh plastering inside and outside the premises.

Mounting

Since there are many varieties of plaster mesh, there are also several ways to fasten it. The most popular of them are:

applying a mixture for plaster;
the use of self-tapping screws;
the use of dowel-nails;
fastening with screws.

If the first layer of plaster is applied, then the mesh is simply pressed into it. With such actions, you can effectively level the wall and get a strong coating. But for decoration, it is necessary to fasten the selected canvas with fasteners. If such a zone has small dimensions, then it can be applied to certain areas. For a paint grid, a small layer of mortar is enough.

If we talk about fiberglass, then to use it you need the correct sequence of actions:

drawing markings for fastening beacons;
making holes for dowels;
the screws are screwed to a certain depth so that the caps are at the same level;
applying the solution to the desired area;
on top of the plaster, you must immediately fix the mesh by threading the screw heads;
overlay mixture for a new site;
to fasten the next piece of mesh must overlap by about 10 centimeters;
it is necessary to gradually cover the entire room with a solution and apply a grid on it;
after that, beacons are installed;
subsequent work is already being done on the lighthouses in order to get a flat surface.

The process of smoothing the mixture along the grid goes from the middle to its edges. If the thickness of the putty is small, then you can use staples to fix the mesh, and then apply a new layer of putty on top.

If we are talking about a metal mesh, then the sequence of work is different:

cleaning from grease, washing the surface and wiping with a damp cloth;
separation into pieces of the desired mesh size with metal scissors;
preparation of holes for dowels at a distance of 30 cm from each other;
in dowels with screws and mounting tape, you need to fix the mesh on the wall surface;
a new section of the mesh is laid with an overlap of 10 cm;
after that, the installation of beacons and work on them.

The mesh installation technology is suitable not only for walls, but also for the ceiling. The main thing is to mix the solution correctly, because for ceiling work the mixture must not be too liquid, otherwise it will not stick to the surface.

The use of reinforcing mesh for the ceiling has its own characteristics. It is applied in cases where many small cracks appear on the surface, which cannot be removed in the usual way. In order to carry out work on the installation of a reinforcing mesh on the ceiling, it is necessary:

remove all lagging areas from the surface;
primer with a penetrating mixture;
dilute the PVA glue to liquid state and apply it with a roller to the places of cracks;
immediately put a piece of fiberglass on the place smeared with glue and again apply PVA on top;
each new layer of fiberglass must have an overlap of at least 5 centimeters.

Work is carried out until the entire ceiling is pasted over, after which you need to wait for the surface to dry completely and proceed to finishing with any convenient way. Following the above rules, you can easily and correctly make repairs to any room.

The choice of mesh depends, first of all, on the thickness of the plaster layer. If it is less than 3 cm, then it is recommended to use the fiberglass version, which is mounted on the solution. It dries very quickly, which helps to strengthen the wall and fully work with it.

If the plaster layer is more than 3 cm, then it is better to use a metal mesh that can easily cope with such a weight and help strengthen the wall surface. Usually this type is used for outdoor decoration.

If work is carried out in a bathroom or a pool room, then it is important to choose reinforced material for work, otherwise the mesh will be covered with rust from moisture, which will appear on the wall surface, spoil its appearance and break the fortress.

If you need to make a plaster finish, then the best option for this would be a plastic grate. In the finishing process, it is important to use a stack with a minimum cell diameter. In the event that it is necessary to get rid of a crack on a wall or ceiling and close it up, the most convenient and practical option is to use a sickle.

To work with slopes, it is important to use a metal grate in the case when a thick layer of plaster is applied. For a thin layer, fiberglass can be dispensed with, but any work with slopes must necessarily be using a reinforcing mesh.

In the case when you need to finish the stove, a massive mesh called a chain-link is used. It is attached to a composition of cement and clay, after which fiberglass is applied to a thin layer. Then the finishing process moves to the finishing stage.

There are cases when you can do without the use of reinforcing mesh. But it's still better to use it:

in the presence of joints from various materials- walls made of drywall and brick, the construction of partitions adjacent to other material;
on the corners of the rooms, where bearing wall connects to the interior;
in the presence of a monolithic concrete surface, which is not yet five years old;
there are places where the plaster has been lying for more than 20 years;
if the mixture has a high degree of shrinkage;
when working with drywall;
if the surface is to be painted, wallpaper will be glued to it or decorative plaster will be applied.

If you are working with a paint grid for the first time, you need to know exactly how it should be applied to the surface. The sequence of work in this case is reduced to:

preparing the base for the grid;
applying a base layer of putty to the area where the mesh will be applied;
installation of the grid itself;
pressing the mesh into the putty;
leveling the mesh with a spatula so that there are no bumps or wrinkles on the surface;
covering with a new layer of paint mesh putty.

After that, it is imperative to dry the surface until completely dry and apply the finishing layer of plaster, finally leveling the surface.

If reinforcement is necessary, then the mesh is not located end-to-end, but with an overlap of at least 10 centimeters.

In order to use the grid correctly, you need to be able to choose it, and for this it is important to know how the main options for repair grids differ.

putty mesh- a material similar to fabric, in which the cell is only 2 by 2 mm, and the density is 60 g per m2. If a mesh with a cell of 5 by 5 mm is taken for work, then surfaces can be reinforced using a coarser solution. This mesh can be used both indoors and outdoors.
Serpyanka in structure it has the same appearance as the 2x2 putty mesh, but differs in size, because it is made in the form of a strip. This strip is small in thickness, and the length can vary from 12 m or more. An important feature Such a coating is that one side has an adhesive base, which can reinforce cracks on the walls.
Gossamer mesh- a material that is not similar to the fabric, but obtained as a result of the press a large number fibers. In a professional environment, it is called fiberglass. You can buy it in the form of a roll, the width of which can be different. The minimum is 2 cm, and the maximum is 2 meters.

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