Priming walls before wallpapering: how and what to process. What should be done before wallpapering? How to treat the walls before gluing? Preparing the walls for pasting Impregnate the walls before pasting the wallpaper

How to prepare walls for wallpapering

The main arguments for preparing concrete walls before wallpapering are the following:

To make it easier for you to navigate and understand how to prepare the walls for wallpapering, we have grouped all the steps into instructions. You just have to follow the steps detailed in it.

Wall cleaning

First of all, the surface must be rid of any traces of the old finish. Wallpaper must be moistened with water and scratched from the walls with a spatula. To quickly remove the paint, you can heat it with a building hair dryer. You can read more about how to remove old wallpaper from walls or how to remove paint in the relevant articles. After removing the finish, the walls must be cleaned of traces of dust and dirt.

Primer

Firstly, a high-quality primer penetrates deep into the wall, preventing concrete and plaster particles from peeling off. Strengthening primer is especially indicated for use on loose substrates.

Secondly, the primer prevents the absorption of moisture, which is especially important when applying wallpaper glue - it simply absorbs less and dries more slowly. Well, a layer of finishing putty applied to a primed wall dries in a timely manner and does not crack.

Thirdly, the primer removes dust from the surface, and dust, as you know, prevents something from sticking.

You can prime the wall with a roller or a large brush. Well, before further finishing, it is necessary to allow the primer to dry.

As already mentioned, the wallpaper will not hide surface defects, so all scratches, pits and other irregularities are leveled with putty. If you have a plastered surface and cracks appear on it, this means that the plaster is falling off in those places. It must be beaten off from the wall and the pothole must be plastered over with a new one. If there is a difference of more than 5 mm on the wall, then this part should be leveled with plaster. The rest of the surface is leveled with finishing putty.

If you apply plaster or putty on an unprimed surface, then it is likely that the composition will simply crumble.

You will have to apply at least a thin layer of putty, especially when it comes to old concrete walls. On a rough surface, the wallpaper simply will not stick, and after six months it will begin to peel off at the seams.

For perfect alignment, one approach is not always enough. Professionals often level walls in two, three, or even four stages. Having covered the irregularities for the first time, it is necessary to wait for the putty to dry completely in order to proceed with the application of the next leveling layer. After drying, the puttied surface must be sanded with a fine-grained sandpaper. Grinding is needed in order to make the surface smooth, without roughness.

And the final step in preparing the walls for wallpaper is the application of a primer. It is the primer layer that will prevent the appearance of fungus and mold, increase the adhesion of the wallpaper to the walls. It is applied with a roller or brush. If the walls do not absorb the primer well, it must be reapplied. The second layer is applied only after the first has completely dried. After this stage, the walls are ready for wallpapering.

I would like to note that the primer is an obligatory step between any layers of plaster, putty and wallpaper. For quality preparation, always choose a good primer, better than deep penetration.

As you can see, the process, although painstaking, time-consuming, but not complicated. The main thing is to know the technology, and then your finish will delight with its original appearance throughout years. We hope this article was useful to you, good luck!

What are the problems?

Wallpapering is one of the most simple ways change the design of a room or housing in general. A variety of materials allows you to create versatile interiors, adapted to certain styles. But in order to get a similar effect, you should pay attention to the condition of the walls before applying the canvases. It depends on how long and how well the wallpaper will be held on the surface.

Wall treatment before applying wallpaper is needed to solve several basic problems:

Uneven surfaces. It is theoretically possible to glue paper sheets on curved walls, but this will not allow you to get desired effect. The joints between the sheets will be uneven, while forming overlaps or significant gaps. Therefore, in order to apply wallpaper with high quality, you must first repair the base.
Unstable foundation. The walls in many apartments have already been covered with plaster several times, which can peel off. This can lead to the fact that the wallpaper will not fit snugly with the surface and will quickly fall off. Small cavities can occur inside such bases, leading to the formation of drafts and other unpleasant phenomena.

Fungus. Mold often thrives in damp environments. If it appeared on the wall, then this means that the surface quickly absorbs water and does not dry out. In such cases, it is necessary to treat the walls with special substances, as well as additional plastering of the base. In some cases, to get rid of this phenomenon, it will be necessary to remove the top layer of wall decoration, in which spore pathogens are located.
Dirty base. Wallpaper glue is intended for processing only certain types of materials. If there are greasy, oily stains or paint on the surface of the wall, then it simply will not work to fix the canvas. After a certain period, the substance will simply peel off and fall.

Surface preparation is a must, even if none of these problems exist. But at the same time, the wall is affected by special compounds that only improve the quality of adhesion between the material and the base.

The first stage of preparation

The preparation of concrete walls depends on whether the old coating is present on them, or whether the walls have never been decoratively finished.

The very first stage in the preparatory work for wallpapering is the dismantling of the old coating. If you do not dismantle the old wallpaper, further surface preparation measures will not make sense.

The canvas of old wallpaper needs to be softened. If the previous wallpaper was paper, they should be soaked in soapy water with the addition of wallpaper glue. On vinyl or non-woven wallpaper, you need to make cuts in order to get to the paper base, which should soften soap solution. After the wallpaper has softened, it should be removed with a metal spatula. If they are difficult to remove, it is worth moistening them again with soapy water.

If the wall was painted with enamel or oil paint, it should be cleaned with coarse sandpaper. Water based paint removed similarly paper wallpaper with a spatula.

If the previous wall decoration was under plaster, it is necessary to verify its integrity by tapping for voids. Empty places are removed and plastered, if there are many such places, it is better to remove the entire layer and re-plaster the surface.

Puttying. This process is complex and also depends on the state of the surface. If the walls or ceiling were leveled earlier, then their preparation for gluing involves removing small irregularities and repairing cracks with putty. The newly plastered planes, which have already been processed without the use of putty, are also amenable to minimal impact. A more common case is when the geometry of the walls in the room is not respected. Therefore, it is important to properly prepare such planes for the application of materials. The procedure begins with the alignment of the corners, which must be joined strictly at an angle of 90 degrees. This will allow you to get smooth joints without cracks and drops. After that, proceed to align the walls themselves. To do this, they apply a thin layer of plaster in places where there are significant differences.

Padding. Finishing with primer mixtures is always carried out before gluing almost all types of wallpaper.

Wallpaper today can be glued not only inside apartment buildings where the walls are made of concrete or plastered. Similar materials Great for other bases too.

Therefore, it is important to properly prepare them depending on the type of surface:

Concrete walls. Wallpaper is not glued to this material, as it absorbs moisture well, which will affect the operation of the sheets. Therefore, experts recommend that concrete be finished. This procedure begins with cleaning the surface with fine sandpaper. After that, it is important to remove all dust and cover the wall with a primer. To prepare concrete, the wall should be completely covered with putty. This will not only level the plane, but minimize the absorption of moisture. A similar algorithm can also be used for brick walls that need additional plastering.
Drywall. Walls made of this material are an ideal base for wallpapering. When preparing them, attention should be paid to the joints between the sheets, where gaps form. Many experts recommend covering drywall with a thin screed, which will hide all defects and make them invisible after gluing. After this procedure, the material must be primed in order to increase adhesion.

Plywood, chipboard and other wood-based panels. These substances are also very common as wall surfaces. Theoretically, you can fix the wallpaper on them without preparation. But this approach is not always optimal, as the wood quickly swells and fails. To improve adhesion, experts recommend completely puttying the plates or additionally pasting them with special paper, which will act as an intermediate layer.
Clay. Clay walls are not so common, since only lovers of environmentally friendly technologies use this material as a building material. If the clay walls are fairly even, then they do not need additional preparation. But this does not exclude their priming, since this step is necessary for all types of bases.

What kind of wallpaper do we glue?

The type of wallpaper also affects the algorithm for preparing the surface for their fastening.

It is important to take into account a few simple nuances:

Paper ones have a slight thickness, so even small irregularities will show through them. Therefore, the walls under them must be perfectly even.
Base processing should be carried out only with the use of reinforcing meshes. This applies to those areas of the house where there is a risk of cracks that will lead to material rupture.
The surface under vinyl wallpaper or non-woven materials may have small irregularities that they will hide. A feature of these types is that they do not let air (non-woven only after painting) into the wall structure. This, in turn, can lead to the development of fungus. To exclude this, the bases must be impregnated with special antiseptics.
Liquid wallpaper is a certain layer of decorative plaster, which allows you to hide significant irregularities. But it is still recommended to level the walls under them, since when replacing them with other types, this will allow them to be applied faster and better.

Electrician

The electrical network is often located directly on the surface of the walls or inside them. If your cable is simply nailed on top, then it is advisable to place it in special strobes, which are small channels.

The process of preparing walls for wallpaper also includes several operations with electrical appliances:

Dismantling of external elements. Before applying the primer or putty, remove the switch and sockets. At the same time, their insides should be carefully protected from dirt and foreign materials.
Cable replacement. Almost all wiring today is hidden under the wallpaper, which does not allow it to be repaired efficiently and in a timely manner. Therefore, if your network is quite old and cannot withstand loads, wallpaper replacement is an opportunity to completely change all wiring to a new one. This operation is optional and depends only on the state of the electrical network.

A feature of any wallpaper is that they consist of several layers. This, in turn, can affect not only the strength, but also the transmission of the color of the base. Today, after gluing many types of wallpaper, a dark base or different kinds spots. This feature applies only to thin sheets, as well as liquid materials. To exclude this, you should glue them on the walls of light shades.

Before wallpapering, it is recommended to paint the base in light colors using lime or special primers. A similar approach is required for concrete and clay surfaces, which are characterized by significant contrast.

Please note that if you use thick wallpaper, then stains do not appear through them. They can only be seen if the wallpaper has a transparent structure that allows you to see the blackouts under the main layer of the wall covering.

The stages of preparing the walls have already been considered, however, now it is necessary to determine in more detail the sequence of preparatory work before pasting. Preparing the base for gluing is as important as processing it for painting.

Remove switch

During the preparation of the walls, it is recommended to remove the casings electrical sockets and switches. There are various types of power supply devices, in connection with this it is not always possible to clearly determine how to remove the switch correctly. The network can be connected via circuit breakers. In this case, you will have to disable all protection.

There are two types of switches. They differ in the types of attachment. The switch can be attached to the wall with screws. There is also a hidden type switch, the box of which is located under the wall.

The modern switch has a smooth surface, the mounting is hidden. The first step is to remove the fastener keys. If it was not possible to do this manually, then you should use a screwdriver. After the fixation of the switch is removed, check the absence of voltage on the wires. Next, you need to disconnect the wires.

Treatment

If, after removing the wallpaper, irregularities are found on the wall, plastering should be resorted to. Plaster mortar is easily made by hand using sand and cement. The mixture is slowly stirred and water is gradually added to it.

The plaster is applied in three layers. The first layer should be no thicker than three millimeters. The second layer is aimed at leveling the plane of the wall and cannot be more than six millimeters.

Finishing preparation

The final preparation of the walls includes grinding the putty surface with a metal mesh or sandpaper from small irregularities after the putty has completely dried, and final priming until completely dry. necessary quantity layers.

This preparation of concrete walls is carried out when gluing paper, vinyl, non-woven wallpaper.

Preparing walls for wallpapering is a rather complicated procedure, which includes many different operations.

To get a quality result, you should follow a few simple recommendations:

It is desirable to putty the walls in several layers. It is best to start this procedure from the top.
When choosing finishing materials, you should pay attention to what surfaces they are intended for. It is important that they are compatible with the substrate, as their longevity depends on this.
Regardless of the wallpaper used, the walls should be leveled as evenly as possible. This will allow you to use them in the future to work with various materials. After dismantling the old sheets, it will only be necessary to clean the surface and perform its priming. Versatility smooth walls in that they can also be used for both gluing and painting.
The base is covered with whitewash only if necessary. If you make its full alignment, then it will be light even after applying the finishing putty.

We have considered the main features of preparing walls for wallpapering. It remains only to summarize and give some useful advice those who decide to do the surface preparation on their own.

Important Tips:

In order for the wallpaper to last for many years, you should not ignore the instructions for the technological process, which includes putty and base primer.
The finish will never set on glossy paint, however, if you work the base with a special tool, it will become rough, which will allow the adhesive to take a good hold.
The joints between the wall and the plinth are best cleaned and filled with a solution of gypsum, wait until it dries, then remove the remnants of the dry mixture.
It is important to process the seams on the surface of drywall with puttying, it is advisable to paint them with oil paint.
To avoid visible traces of the nails that fasten the drywall sheets, if possible, they should be deepened into the material.

If you skip the stage of priming the wall, then as a result, the finish will not be able to hold out for a long time.
During the puttying process, those parts of the walls where metal fittings are visible are carefully processed. This must be done in order to avoid yellow spots on wallpaper in the future.
After each stage of wall processing, the surface must be thoroughly dried. It is better to do this naturally without the use of artificial air heating devices. If the wall is not well dried, this will lead to dampness, and subsequently to the appearance of fungus.
During the puttying of the walls, the spatula tends to leave noticeable stripes. To reduce surface roughness, two thin layers are applied horizontally, and the next layer should be done in a vertical direction. You can also do this work diagonally. This will give the putty layer a more even appearance.

When choosing a tool for puttying, its dimensions are taken into account. The most optimal spatula with a width of thirty to forty centimeters.
When choosing wallpaper glue, you should pay attention to its important characteristics. First, the emphasis is immediately placed on a proven manufacturer. Repairs are always planned to be done not for a year, so the quality of the glue should be at high level. Secondly, you need to make sure that the glue is suitable for the type of wallpaper you have chosen. For each type of canvas separate view glue.

For more information on preparing walls for wallpapering, see the following video.

Preparation for liquid wallpaper

When preparing for liquid wallpaper, a perfectly flat surface is required, while when gluing non-woven wallpaper, some wall irregularities may become invisible. Preparing concrete walls for decorative plaster and liquid wallpaper is similar, but liquid wallpaper requires less cost by time. It does not differ from the preparation for sticking ordinary wallpaper, except that liquid ones tend to draw stains and stains from concrete surfaces, so the walls must be covered by special means and several primer layers.

Successful examples and options

Interior wall decoration for wallpapering is a universal opportunity to solve several problems at once:

The application of the canvases will become much easier, which will save a lot of time.
Smooth walls allow you to decorate the room with various elements that could not be installed before.

You can decorate the walls beautifully with your own hands, as this does not require special knowledge. It is only important to choose the right materials that are suitable for solving certain problems.

Here is one example of how perfect a wall looks like, which was leveled with drywall and pasted with gray wallpaper. Despite the gloomy, at first glance, shades, the design of the room looks great thanks to the right furniture and bright accents- pillows.

Another original design, which was obtained using drywall wall and wallpaper. Everything is carefully crafted and looks amazing.

Watch the video to prepare the walls for wallpapering with your own hands.

Preparation for painting

Preparing for tiles

The exception is the preparation for mosaic tiles with a paper base, which is glued like wallpaper - it requires a well-plastered surface. If the walls are even, the tiles are laid on tile adhesive or cement mortar if not, then a plaster mesh is additionally used.

After removing the old coating, the plaster is tapped for voids for repair. After that, the surface under the tile is treated with an antifungal primer, this is especially important if the bathroom or toilet is facing. Floor tiles in these rooms must be treated with waterproofing.

Many homeowners, starting their first self-repair, assume that wallpapering walls is a very simple and quick process, which in many respects wins over other types of finishes in terms of these indicators. In part, this is exactly so, but only if the surfaces are well prepared for the main work. The preparatory activities consist of several stages, and some of them are enough labor intensive and "dirty". But holding them is prerequisite, otherwise the desired effect from the finish will not work, and expensive wallpapers will be damaged.

One of the necessary steps involved in preparing surfaces is their careful leveling with subsequent priming with special compounds. Knowing this by hearsay, beginners often have a question - how to process the walls before wallpapering? In addition, you need to know that in order to teach the ideal surface for wallpapering, all work must be carried out in a certain order, without omissions or simplifications.

Requirements for surfaces for wallpapering

First you need to determine the criteria that the wall intended for wallpapering must meet. Not only the decorative quality of the finish, but also its durability will depend on compliance with these conditions. Therefore, the first step is to revise the surface and determine the amount of work to be done. It is possible to check the walls only after the old coating has been removed from them.

After complete cleaning of the walls from the old decorative finishes, they must meet the following requirements:

The walls must be dry, as a wet surface practically does not absorb water, which is the basis for wallpaper glue. In this regard, the canvases will not hold well on the wall, and when the temperature in the room rises and moisture evaporates, the wallpaper will begin to peel off from the surface.
Foundation cleanliness. The walls must be freed not only from old coatings, but also from possible pockets of mold (even if they are only supposed). You should not even start pasting the wall if suspicious dark stains or obvious colonies of some kind of microflora are found on it, as sooner or later they will destroy the finish and will certainly appear outside.

In addition, mold, while growing, releases spores into the environment that are dangerous to human health. Wallpaper same on paper basis are a very favorable environment for the rapid development of such colonies. And they will definitely appear under the already pasted canvases, if the wall is at least a little damp.

The wall should not have cracks or other damage, as they will appear through the glued canvases. Well, with further expansion of cracks, tears or folds from distortions may appear on the decorative coating.
Surfaces must be even and smooth, as well as uniform in color, otherwise the bumps will definitely be visible through the wallpaper. If the selected canvases have a small thickness and are painted in light shades, then the color difference on the wall surface will certainly appear through them.

Step-by-step preparation of surfaces for wallpaper

The process of preparing surfaces for wallpapering - quite long and a tedious procedure that requires not only the application of forces, but also some additional costs. Therefore, some home-grown masters, trying to save time, effort and money, consider it optional. However, in order for the wallpaper to have good adhesion to the wall, look aesthetically pleasing, hold securely on the surface and last for a long time, preparatory work is indispensable.

Wall preparation consists of the following steps:

Cleaning surfaces from old coatings.
Cleaning walls from and conducting "treatment".
Sealing of detected cracks and chips.
Priming of surfaces, which will strengthen the structure of the wall material.
Leveling surfaces with plaster or putty only, depending on the original base.
Sanding of leveled walls.
Primer treatment to increase the adhesive properties of materials.

Plastering is necessary in cases where surfaces have serious deformations. In some cases, an alternative to the “wet” wall leveling technique can be the use of drywall (“dry plaster”) for this purpose, which is glued directly to the wall.

Cleaning surfaces from old coatings

The first step is cleaning the walls from old coatings - paint, wallpaper, whitewashing others. Be sure to remove all occurring nails or dowels.

, although in some cases this process may be delayed if they were glued to high-quality glue.

Various methods are used to remove the used canvases.

- The first method that is most often used by home craftsmen is to try to pick up a paper sheet with a spatula and carefully remove it from the wall, trying not to tear it. Sometimes the canvases are easily completely separated from the surface, and there are no special problems with cleaning.

- Another option is to abundantly moisten the paper sheets with warm water using a brush, roller or spray gun. Water is applied to the surface several times, as it should soak through the paper and soften the glue. In this case, the soaked wallpaper has to be scraped off with a spatula, making an effort.

- Vinyl multi-layer wallpaper has to be removed in two stages - first, the top decorative layer of the canvases is removed, and then the paper backing is peeled off, which, as a rule, is securely held on the wall. It is also well moisturized and removed with a spatula.

Prices for antifungal agent for walls

wall antifungal agent

- In addition, the wallpaper can be removed with steam. Some craftsmen use for this purpose steam iron, professional finishers often purchase a special steamer to facilitate large-scale work.

If you plan to paste over a previously painted wall, then getting rid of the paint layer will be somewhat more difficult. Surface cleaning can also be done in several ways.

- The mechanical method is to remove the paint layer with an electric drill. To do this, an iron brush or abrasive nozzle is installed in its cartridge.

- The thermomechanical method consists of two stages - warming up the paint using a building hair dryer and further cleaning the peeled coating with a spatula.

— Chemical-mechanical method. In this case, a special wash composition is applied to the wall, softening the paint layer, which, under the influence of the drug, is easily separated from the surface.

It may not be difficult to remove whitewash from the walls, but you need to prepare for a lot of dirt. Therefore, before starting work, it is recommended to cover the floors along the wall with plastic wrap. If whitewash has pretty thick layer, it is desirable to soak it abundantly with water, and then remove it in separate fragments. A thin layer of whitewash is washed off with water, to which a little vinegar is added, which will degrease the coating, and it will be easier to remove it from the wall.

Removal of foci of biological damage and "treatment" of the wall

If, after removing old coatings, mold spots are found on the walls, getting rid of them will not be easy. But you need to do this in any case, otherwise there is nothing to take on a new finish.

The problem with their removal is that this microflora grows deep into the structure of the wall material. And if the stains are cleaned only from the surface, without taking any more radical measures, then after a while they will again appear outside, and, will easily “eat up” new pasted wallpaper sheets. Therefore, to remove mold, it is imperative to use special compounds that can penetrate deep into the material.

However, first you should determine the cause of the occurrence of fungal formations and take measures to eliminate it. If this is not done, then the removed spots will soon return to their place. For example, if this is a wall bordering a bathroom or kitchen, then it is necessary to start processing from these premises. If mold has appeared on an external wall, then it may be worthwhile to deal with the system or apartment, and also check the corners for through cracks.

If mold has formed on the plaster layer, then it is better not to even treat it, but to remove it completely.

Today in specialized stores are offered different variants fungicides to remove biological formations. The compositions can be sprayed onto the surface or applied with a brush or roller.

Mold solutions go on sale in containers of different sizes. Protect your hands during this process Airways and eyes, since most solutions are made on the basis of chlorine used in high concentrations.

Most likely, the wall will have to be treated five to six times, since the mold "leaves" is quite difficult. After waiting for the disinfectant to dry, the wall must be washed with water, removing the remnants of stains with a brush.

If necessary, the process will have to be repeated, that is, apply the solution again, then rinse the surface well. If everything went well, and the wall became clean, then it is recommended to dry it well with hot air by directing a heater at it. Best for this situation heat gun, as it is designed for directional action.

If after processing the mold has not gone away, then you should seek help from specialists who should cope with this task. But professional processing will cost much more.

At home, you can prepare a less harmful mold control agent that does not contain chlorine. This will require 200 grams of slaked lime and a liter of water. If more solution is needed, it is prepared in the same proportions.

I would like to give advice to those who move into the apartments of new buildings. So that the mold does not capture the surface of the housing, it is best to immediately treat the walls with a special primer before finishing, which will prevent the appearance of foci of biological damage.

Carrying out repair of the surface of the walls

If cracks are found on the wall, which is not uncommon in old houses, they must be repaired. Otherwise, in the future they can spoil appearance finishes.

Wall repair work is quite simple, and this process includes the following steps:

The detected crack is expanded so that the material with which it will be sealed penetrates as deep as possible into the wall.
Then, it is cleaned with a brush, sweeping out dust, sand and fragments chipped from the edges of the crack from the inside.
The next crack step is necessary. It is advisable to do this with a spray gun, but if it is not available, then a soft brush will do.
Next, the crack must be filled with repair material. It can be made on the same basis as the wall material. But very convenient and modern repair compounds on polymer base especially if the crack is small in width. To repair a wide crack can be used and polyurethane foam with a low expansion ratio.
After waiting for the repair compound to harden, the protruding excess is cut off, and then the surface is ground, since the laid “patches” must be brought to the level of the main surface.

Surface priming

The next step is the treatment of the walls with a primer solution, which contains antiseptic substances in its composition. Some consider the priming step optional, but you need to know that it is thanks to this layer that high adhesion of any materials is ensured and protection against the occurrence of new mold formations.

Wall primer prices

wall primer

Priming solutions can be different types, they are subdivided according to the basis on which they are made, as well as according to other criteria.

Subdivision Criteria for Primers	Types of primers
Based on manufacturing	Acrylic, mineral, alkyd and others.
According to the degree of penetration into the base.	Deep penetration, conventional.
By appointment	For plastered walls, concrete, wood, metal surfaces and universal.
By area of application	For external, internal works, and also universal.
By properties	Antiseptic, moisture-proof, anti-fungal, anti-corrosion, fire-fighting, etc.

According to these characteristics, you can choose the desired solution.

For the treatment of any walls, it is best to purchase a deep penetration composition. It will strengthen the base by filling the pores of the wall material structure. According to the material of manufacture, it is recommended to choose an acrylic-based solution.

The primer is applied to the walls with a roller or brush in two to three layers, each of which must be dried before applying the next.

Surface leveling

The wall for wallpapering should, of course, be very even. But ideal smoothness, unlike preparation for painting, is not particularly needed for it. Therefore, some roughness is quite acceptable.

The alignment process can be done in three ways. The optimal one is selected depending on the quality of the surface:

The traditional leveling method is the "wet" method using a cement-sand mortar or gypsum-based mixture. This method gives a good result, but is not always convenient, rather difficult to perform and requires certain skills. It should be noted that not every novice master is able to perform such work efficiently the first time. When choosing plastering for leveling walls, you should prepare for a large amount of dirt, since the mortar will be mixed in a room where work in progress. Due to inexperience, a lot of plaster will end up on the floor. In order not to spoil the solution flooring, it will have to be covered with polyethylene.

Most likely, the matter will not be limited to plastering - on top of this layer, you will have to perform fine puttying. Another disadvantage of this method is the duration of the process, since each of the layers of plaster, and then the putty, must be well dried before applying the next one.

Prices for finishing plaster

finishing plaster

Plastering walls is not as easy as it might seem.

It will not be surprising if the first attempts are not entirely successful. There is no need to give up - experience will definitely come. And to help the novice master there will be an article from our portal.

Leveling the walls with drywall is perhaps the most accessible way for an inexperienced builder. Sheets of this plaster "can be fixed to the wall with a special adhesive, also made on the basis of gypsum. This technology is well suited for use if the wall has small irregularities. It will be problematic to fix a strongly curved wall by gluing drywall.

One of the difficult operations when applying this alignment method is the installation of the sheet, since it is quite large in weight and size, and can easily break if handled carelessly. Therefore, when mounting solid sheets to the wall, helpers are indispensable.

If the wall is relatively flat, then a drywall sheet is possible, but it will be more difficult to achieve gluing them in one level. In addition, the amount of work will increase due to the reinforcement and puttying of numerous joints.

The advantages of this method of mounting GKL is to obtain a perfectly smooth and even surface. At the same time, additional thermal insulation of the wall is achieved, since drywall has a low thermal conductivity. If mold manifestations were previously found on the leveled wall, and it underwent antifungal treatment, then it is best to use a moisture-resistant type of material (GKLV) to level it.

How to mount drywall coating on glue?

This technology allows you to achieve a smooth surface of the walls in the shortest possible time and at minimal cost. True, it is not suitable for all cases. More detailed information about is available in a special publication of our portal.

Drywall prices

drywall

The third way to level the wall is also using drywall, but with the sheets fixed to the mounted frame. This technology is used if the wall has large distortions or if it needs to be additionally insulated.

The curvature of the wall is leveled with the help of crate racks, exposed in one plane. And in the space between the elements of the frame and the wall, a heat and sound insulating material is installed.

The work, although not simple, is still accessible to perform even for a beginner. It is enough for her to have necessary tools, mobilize your attention and accuracy, and act according to technological recommendations.

Surface putty

Whatever method of pre-leveling is chosen, the next step is to bring the surface of the walls to optimal evenness. Many people are perplexed why, for example, putty plasterboard - because it is already even and smooth. However, it is necessary to do this - there are a number of important reasons for this.

Putty will make the surface smoother, receptive to gluing wallpaper sheets made of different materials. In addition, this layer will even out the color of the wall. Wherein, if necessary, putty can be given the desired shade by adding color to the solution. Sometimes this is required to maintain color solution wallpaper.

Putty is applied, as a rule, in one or two layers, each of which is dried before applying the next. Due to the fact that putty compositions dry out quickly enough, the work will not take too much time.

The wall treated with putty must be sanded to remove inconspicuous, at first glance, irregularities. This work is done with a construction float with an abrasive mesh or sandpaper with a medium grain (approximately P 120 ÷ P 180), since the surface prepared for the wallpaper may have slight roughness.

Why and how is puttying the walls under the wallpaper

The process was described very briefly, but this is only because a separate detailed publication is devoted to issues on our portal.

Finishing wall primer

It is recommended to cover the leveled and puttied wall again, which will not only fasten the leveling layers together, but also improve the adhesion of the surface. This will especially help in cases where non-woven or vinyl wallpapers that are heavy for sticking are chosen for wall decoration.

There are primers that paint the surface. They are chosen for the final stage, if the color of the wall after puttying turned out to be uneven.

At this stage, the primer is applied in one layer using a roller. Work will not take much time if carried out on a well-prepared surface.

Prices for non-woven wallpaper

non-woven wallpaper

by the most the best option primer composition application on a practically finished surface will be acrylic primer deep penetration with antiseptic properties. However, for the final priming of the wall on given At the stage of work, the same glue that will be used for wallpapering is often used.

After drying the final layer of primer, you can proceed to the stage of final wall decoration. Thanks to the work done, it will not cause difficulties and will pass quickly, and the result will please the eye for many years.

And at the end of the publication - a short video about preparing the walls for wallpapering:

Video: An example of preparing walls for wallpapering

Before proceeding with professional wall gluing, it is necessary to carry out preliminary preparation. Many people know about the fact of the existence of the “preparatory stage”, but few people fully understand the true meaning of this concept. What is the sequence of actions during pre-treatment of walls before painting, gluing? There are "pitfalls" in this process, how to avoid them?

Let's try to find out all the nuances of the stage of preparing the walls for wallpapering, since this finishing material is quite often used in everyday life.

Preparing walls for cleaning

It would seem that sticking wallpaper on the walls itself is an activity that requires the right approach, involves patience, accuracy. But if you missed such an important step as the preliminary preparation of the walls, the end result will disappoint you. You will not need special professional knowledge at the preparatory stage, you need to stock up on great desire, patience, and some building materials and tools.

It is necessary to make the surface of the wall smooth and dry. Otherwise, the process of pasting wallpaper on the wall will be meaningless; after a couple of days, the wallpaper canvases will begin to fall off this wall. To perform such actions, purchase at a hardware store. The walls in apartments sold through the secondary real estate market are covered with wallpaper or painted with paint, and therefore need individual preliminary preparation for cosmetic repairs.

If you are planning repairs in a new building, you will first have to carry out, because builders do not really bother building new houses, they do not check the quality of partitions, the evenness of surfaces, their main task is to obtain maximum material benefits in a minimum period of time. All those inaccuracies that were made by them, it will be you who will be forced to correct. Concrete dusty floor, uneven walls, lack of outlets are typical signs new apartment. It is impossible to immediately move into such an apartment, you will have to spend a lot of effort, Money, their time to “bring the square to mind”, that is, to make it habitable.

The procedure for preparing walls in new buildings for cosmetic repairs is conditionally divided into several main stages:

First stage involves applying a spray to the walls, which should have a thickness of about 3-9 millimeters. Such a layer is an analogue of thick sour cream, it can fill all the roughness and irregularities, it easily falls on the surface of the wall. Depending on the consistency of the spray, the plaster may stick to the wall normally, or fall off the wall after a while.
Second phase is to prime the walls. On average, the thickness of the primer layer is 5-6 millimeters; in case of emergency, several layers of primer are applied to the wall in stages.
Third stage consists in covering, that is, applying the final layer of plaster to the wall surface, the thickness of which is assumed to be 2-4 millimeters. The essence of such actions is the formation of a thin, light film on the surface of the soil, which is carefully rubbed over time.
Fourth stage involves the procedure for leveling the walls using sandpaper.

How to remove old wallpaper from walls

If there were old wallpapers on the wall, then you need to get rid of them. Some homeowners neglect this stage, believing that they are simply wasting their time, energy, and. What is the risk of such actions?

If several layers of wallpaper are glued to the wall at once, there is a high probability that they will begin to peel off, in which case you will have to remove all the wallpaper from the walls, buy new ones, that is, you, wanting to save money and effort, will end up spending both. In order to avoid such unpleasant consequences, pay attention to phased implementation preparing the wall for pasting it with new wallpaper.

So, if there is a layer of old wallpaper on the wall, be patient and get rid of all the remnants of wallpaper. Are there ways to speed up the process of removing old wallpaper from the walls?

Professionals advise to use:

Small spatula;
Sprayer or roller;
dishwashing detergent;
Vinegar;
Fabric softener;
Water.

In those places where the elements of the heating system are located, as well as near the window sills, the wallpaper is firmly attached to the wall, they cannot be removed without auxiliary means.

First, the surface of the old wallpaper is intensively wetted with water, for this, take a sprayer or a construction roller. If you add vinegar to warm water, detergents, which are able to dissolve the glue on which the wallpaper was glued, then significantly speed up the procedure for preparing the walls for subsequent pasting them with new wallpaper. After the walls get wet, you can take a spatula, and gradually. If you wish, you can buy special tools at the hardware store designed to get rid of old wallpaper.

Preparing a painted wall for wallpapering

If the wall has been painted, it also needs to be prepared for the wallpapering process, because the wallpaper will not hold on to a smooth painted wall, they will begin to fall off the wall after a few months. In order to prevent such troubles, take care of the preparation in advance. The essence of the preparatory process consists in high-quality stripping from the wall of the layer old paint.

Removing paint with a scraper

Some property owners, trying to save time on preparing walls for gluing, use ordinary emery cloth, removing only part of the layer of old paint with it. Someone simply makes a few notches on the wall or partially coats the surface of the wall with a layer of primer.

Sandpaper is fixed in a special device or wrapped around it wooden block so as not to hurt your hands

Such half-hearted preparations do not guarantee positive result after completion of all pasting, especially if . You'll have to be patient, pay attention to the process of removing all the old paint from the wall:

First, remove the old paint, then perform a high-quality primer on the walls;
Wait for the wall to dry;
Using sandpaper, remove all bumps and roughness from the wall.

We use a building hair dryer

Using a blow dryer is an effective but unsafe way to remove old paint from a wall. It is necessary to turn on the building hair dryer, direct it to the painted surfaces of the wall, and after the paint becomes soft, remove it from the wall with a spatula.

Important. It is necessary to guarantee the inflow of fresh air into the room, because in the process of heating the paint there is an intensive release of harmful chemicals into the atmosphere of the room, there is a high probability of nausea, vomiting, and mild poisoning.

Removing paint with a grinder

The use of a grinder or grinder equipped with wire brush, helps to quickly remove paint from the surface of the wall, but this method is very dusty, so you need to take care of ways to protect your respiratory organs, for example, wear goggles and respirator. When working with a grinder or grinder, it is desirable open windows in the room, protect the floor with plastic wrap, close the doors to other rooms of the apartment so that dust does not spread throughout the apartment.

Experts call the most effective and safe way to get rid of old paint using special paint remover. While working with such a wash, you should also take care of the full protection of your organs of vision, breathing, using the following means.

For finishing walls, non-woven wallpaper is often used now. This kind finishing material quite versatile. It is easy to install and operate, waterproof, durable and able to hide some small defects on the wall. The choice of non-woven wallpaper can be made for any room.

Using non-woven wallpaper for walls

However, despite the simple requirements for the wall covering on which the non-woven wallpaper will be glued, it is still worth preparing it. Today we would like to tell you how to properly work with the walls before wallpapering.

Preparing the walls

Wallpapering is not the most difficult task, especially if it is non-woven wallpaper, but it definitely requires a lot of patience. One of the most important stages of work is the preparation for gluing. The mistakes made at this stage will certainly lead to a worse result in the future, therefore it is necessary to withstand the technology, to do everything right. Almost anyone can cope with this task, it will be enough to gather strength and show some perseverance.

The main thing is not to overdo it with dismantling work and stop in time

We shoot wallpaper

First of all, we need to dismantle the old wallpaper, for this we need a sharp spatula and a large amount of water. It is better to choose a small but sharp spatula so that it easily cuts deep into the wallpaper material. A large spatula will come in handy for the following plastering work.

If there is old paper wallpaper on the surface of the walls, then it will be difficult to remove them, use a large amount of water. Before dismantling, apply water and let it soak into the wallpaper, and then remove the old wallpaper.
If they were previously pasted, then, most likely, they will easily move away in whole canvases. However, in order to pour water behind the wallpaper, it is necessary to damage them, since they themselves are waterproof.

To create a smooth and straight wall, after the wallpaper has been removed, we need plaster. It is with its help that we will achieve a flat and smooth surface. Most often, wallpaper from the walls is torn off along with parts of the plaster, since they were glued tightly.

Not the worst option for dismantling old canvases

Therefore, before gluing new non-woven wallpaper, or non-woven fabrics, we need to create a smooth surface of the walls. To do this, we use plaster, you can choose the well-known German Rotband, you can use other options.

Plastering

The preparation of the walls begins with the very basics, with a thorough plastering of the surface. The first layer is applied base, up to a centimeter thick, two. The consistency of the plaster should be such that it can get into all the recesses of the wall. Irregularities up to a centimeter high are buried in the solution, and the wall becomes smooth.

Before the next layer of putty, called the “finish”, it is necessary to prime the entire surface of the walls. This is done to strengthen the inner layer of plaster. For a primer, use a special compound that can be easily found in the store.

The second finishing layer of plaster is applied after the primer dries, the thickness of this layer varies from 1-3mm. This thin layer of putty removes all minor wall defects. Usually at this stage, builders recommend choosing Vetonit, but whichever finishing putty you didn't take, the second thin layer will help create a surface close to ideal.

Work on leveling the walls in the room

After the second layer of plaster has dried, the surface is sanded, the remaining minor defects are removed. Now the walls should be white and even, it will be easy to glue on them. wallpaper on any basis, it remains only to resolve the issue with the soil.

We prime

The plaster walls are behind, now we have to do it again, but already before sticking non-woven wallpaper. You can prime with wallpaper glue diluted in a more liquid consistency, or use a special composition, which is also sold in concentrate.

This time we are producing a primer to reduce the absorbency of the wall surface. We need to ensure that the liquid from the glue is not immediately absorbed, and the wall does not remain dry.

Any person can cope with the task of priming

Now the walls are completely ready for gluing non-woven wallpaper, or non-woven fabrics. Recall that glue is not applied to such wallpapers, but only the wall is smeared.

Other options

A very bad option if you want to wallpaper a painted wall. Wallpaper on a smooth, slippery surface does not fit well, so before gluing, we will have to remove a layer of paint from the walls.

This is a very time-consuming matter, but if we want to make a full-fledged repair, we will have to sacrifice time. All basic training to work with wallpaper will consist precisely in removing paint from all the walls in the room.

The paint on the walls is different

We can remove paint from the wall in several ways:

The simplest and poor-quality option is to sand the surface of the walls, and in some places, use a knife to make serifs and notches. Then a primer is applied and wallpaper is glued, but they will not hold well everywhere.
Another option is not the safest - the paint is removed from the walls with a spatula, for which it is heated with a building hair dryer. This must be done in a respirator and with well-established air circulation, since when heated, harmful substances can be released from the paint.
The third option is very dusty and dirty - the paint is removed with a brush, or an iron brush worn on a puncher or grinder. When sanding the walls, a huge amount of dust is released, so the room must be isolated as much as possible: close all doors, windows and plug the cracks.
The last option is the use of special solutions for washing off the paint and varnish substance. This method is also quite dangerous, so take care of personal protective equipment.

After removing the paint from the wall, before sticking non-woven wallpaper, the walls must be primed, because in the original version they absorb liquids very strongly. The primer concrete-contact perfectly copes with this task.

This time, a dusty method was chosen to remove paint from the walls.

If the walls were badly damaged when removing the paintwork, then we return to the plastering of the walls. In the presence of extremely large damage, it is even possible to plaster the walls on the lighthouses. However, this method involves the application of a large amount of plaster material.

Often there are such walls that you need to spend a huge amount of plaster to level them. In this case, it is permissible to consider leveling the geometry of the room using drywall. Irregularities and defects of the walls are simply sewn up with drywall sheets.

Use for plasterboard walls

On plasterboard walls, non-woven wallpaper is glued just fine, but it also needs to be primed, but in this case you will not need much primer material. Vinyl wallpapers on a non-woven base, they will perfectly lie on even, prepared plasterboard walls.

Properly preparing your walls before you hang your wallpaper will help you avoid many problems in the future. Even if repairs are done by amateurs, many difficulties in the work can be avoided by carrying out elementary work to level the walls. In the future, you will only have to enjoy an excellent repair.

On how well the surface of the wall is prepared under decorative trim(wallpaper, decorative plaster, tile, painting) depends on the final result and the duration of the service life of the repair. Many people know about the need to prepare concrete walls for wallpapering, but few know how to do it correctly in order to avoid the deplorable results of their work, which will eventually result in additional expenditure of time, effort and finances.

The main arguments for preparing concrete walls before wallpapering are the following:

The first stage of preparation

The preparation of concrete walls depends on whether the old coating is present on them, or whether the walls have never been decoratively finished.

Preparing for old wall coverings

The canvas of old wallpaper needs to be softened. If the previous wallpaper was paper, they should be soaked in soapy water with the addition of wallpaper glue. On vinyl or non-woven wallpaper, you need to make cuts in order to get to the paper base, which should soften the soap solution. After the wallpaper has softened, it should be removed with a metal spatula. If they are difficult to remove, it is worth moistening them again with soapy water.

If the wall was painted with enamel or oil paint, it should be cleaned with coarse sandpaper. Water-based paint is removed similarly to paper wallpaper with a spatula.

Wall preparation in a new building

Before preparing the walls for wallpapering in a new building, rough finish, which, in turn, consists of several stages:

Wall irregularities can be eliminated using a plaster mesh. To achieve maximum adhesion of the plaster to the surface, notches are made on a smooth concrete wall with a perforator.

Stage two: primer

After the end of the first stage, the preparation of the walls continues with their primer. It is needed in order to fasten the surface layer of the wall, penetrating deeply into plaster or concrete. The surface of the wall begins to absorb moisture worse, which improves the quality of its coating. In addition, the primer removes dust, cleaning the surface. It must be remembered that the preparation of concrete at each stage must be accompanied by priming.

The primer is applied with a roller or brush until a white foam is formed. If it is quickly absorbed, additional layers are applied. After the primer dries, the wall is rough leveled.

Stage three: putty

After the primer dries, the preparation of the walls continues by eliminating irregularities, defects, cracks. It is necessary to achieve the most even surface. Before applying putty, you need to make sure that there are no fasteners and fittings left in the wall, which will show up as rust through the wallpaper in the future. Areas where reinforcement is exposed must be puttied with special care. In order not to leave noticeable stripes, it is necessary to carry out the spatula first in a vertical position, then in a horizontal position. To obtain a better and more uniform coating, it is recommended to use a wide spatula 30-40 cm and hold it at an angle of 25-30 degrees relative to the wall. An angled spatula is used for filling corners.

Finishing preparation

This preparation of concrete walls is carried out when gluing paper, vinyl, non-woven wallpaper.

Preparation for liquid wallpaper

When preparing for liquid wallpaper, a perfectly flat surface is required, while when gluing non-woven wallpaper, some wall irregularities may become invisible. Preparing concrete walls for decorative plaster and liquid wallpaper is similar, but liquid wallpaper requires less time. It does not differ from the preparation for sticking ordinary wallpaper, except that liquid ones tend to draw stains and stains from concrete surfaces, so the walls must be covered with special products and several primer layers.

For concrete walls, gypsum is such a tool. It protects the adhesive included in the liquid wallpaper, allowing them to adhere securely to the concrete surface. Gypsum clogs all small bumps and pores, it can also be sanded. After it dries, the surface is primed and covered with white water-based paint so that the liquid wallpaper does not lose its color. Applying paint on concrete and plaster is ineffective, only on gypsum putty. Finally, a reinforcing primer is applied, which adheres the liquid wallpaper and the wall surface. Liquid wallpaper is applied with a spatula in the same way as decorative plaster.

Preparation for painting

When preparing a concrete wall for painting, it must be cleaned of any coating that has been applied and anything that may prevent an even layer of putty from lying down. All chips and cracks are sealed, then the concrete for painting is polished with sandpaper. To prime a concrete surface for painting, special deep penetration primers are needed to prevent swelling and peeling of the paint. It is possible to obtain a high-quality surface painting only after applying several layers of primer. Painting of concrete should be done after complete removal of dust with a roller. Correct painting carried out starting from the top of the wall.

Preparing for tiles

Preparation of a concrete surface for tiles is practically no different from other types of coatings. The preparation steps for tiles are the same as described above. A plus in the work, which will save time, is the absence of the need to align the wall under the tiles to a perfectly even state - it is enough to get rid of significant irregularities. An exception is the preparation for mosaic tiles with a paper base, which is glued like wallpaper - it requires a well-plastered surface. If the walls are even, the tiles are laid on tile adhesive or cement mortar, if not, then plaster mesh is additionally used.

After removing the old coating, the plaster is tapped for voids for repair. After that, the surface under the tile is treated with an antifungal primer, this is especially important if the bathroom or toilet is facing. Floor tiles in these rooms must be treated with waterproofing.