Removing old plaster from walls. How to remove old decorative plaster

Preparatory work

Before you start removing old plaster from the walls, you need to find out where the electric wires and acquire all the necessary tools and personal protective equipment (see also the article "Plaster mixes. Consumption and use").

Let's consider them in more detail:

• Respirator. During the performance of work, a large amount of dust is formed in the air, which means that it is necessary to protect the respiratory organs from its ingress;
• Gloves. It is recommended to use sufficiently dense and high-quality gloves, which will avoid the appearance of corns on the hands;
• Protective goggles that have the tightest possible fit, which will protect the eyes from dust;
• Percussion and chopping tools - hammer, pickaxe, sledgehammer, hatchet and others;

Hammer and chisel are the main tools.

• A sharp chisel with a long handle;
• Putty knife;
• A metal brush, as well as special nozzles for a drill and a grinder;
• A perforator with a jackhammer function and a chisel-shaped nozzle;

Perforator for removing plaster.

• Angle grinder (Bulgarian) and drill. These tools may not be required, but, if necessary, should be at hand;
• A bucket of water or a regular spray bottle;
• Devices for removal and collection of debris.

Tip: To find out the location of the electrical wiring (if the circuit is lost), you can use a special device - a detector, like the one shown in the photo. After that, experts strongly recommend de-energizing the room.

Hidden wiring detector.

Removing old plaster

How to remove old plaster from walls? In order to remove the old coating was much easier, before starting work, the surface of the walls is wetted hot water. So you can not only get rid of the dust that is already in the air, but also soften the existing plaster a little.

Among other things, similar actions must be repeated during the entire process of work, carefully making sure that the wall is always wet.

We wet the walls.

Instructions for further actions look like this:

1. First of all, the surface is tapped with a hammer or a small sledgehammer. This is done in order to determine how firmly the old coating holds. That plaster, which is loosely connected to the surface, will fall off immediately. To facilitate the work, pieces of the coating can be pry with a pick;
2. In those places where the coating is very weak, it can be removed with a conventional spatula. It is worth noting that this tool becomes dull rather quickly, which means that it must be sharpened regularly;

Using a conventional spatula, clean the surface.

1. If a spatula, a pick and even a chisel are powerless, you can pick up a puncher with a special nozzle, shaped like a spatula. In this case, it is recommended to warn the neighbors in advance that the apartment will be very noisy;

If necessary, connect the perforator.

1. To make the task a little easier, you can divide the surface of the wall into small sectors. For this, an angle grinder and a disc for working with stone and concrete are used. Shallow incisions are made on the surface of the wall. It is worth noting that the smaller the so-called cells, the more the existing coating will be weakened;

We use an angle grinder to divide the walls into sectors.

1. The work can be completed using specialized grinders. As a rule, not everyone has them, which means that the acquisition requires additional financial costs.

Depending on the power and reliability of such tools, the price can vary from the most budgetary to the extremely high. In addition, during grinding, a lot of dust is generated, because the old plaster is not beaten off, but simply sanded off the wall.

At the final stage, we remove the coating with a grinder.

1. When the main part of the plaster is removed, you need to take care of the seams and joints. In order for the new coating to bond to the surface as firmly as possible, the seams are cleaned and slightly embroidered (to a depth of 5-7 mm).

We clean the seams with a brush.

1. After completing all the above steps, the wall surface is cleaned with a metal hand brush, or a drill with a special nozzle.

We finish cleaning the wall with a drill with the right nozzle.

Finding weaknesses

The work of cleaning the wall must start somewhere. And it is better to do this from the area where the coverage is already weakened. You can understand this by tapping the wall. Tap areas that are at a distance of 30-40 centimeters from each other. In the case of a sonorous sound, we are talking about a good adhesion of the coating to the wall. Well, if the sound is deaf, there are voids there, which will facilitate the work. Also, a sign of weakness of the place may be wet spots or cracks.

Important! With fragmentary cleaning of the wall, it is necessary to remove not only the problem area, but also the surrounding finish at a distance of about forty centimeters. .

Types of mixtures

Having decided on the need to remove the old finishing layer, on next step it is necessary to study what methods of dismantling can be used. The latter depend on the type of previously applied mixture. In any case, first remove weak patches of plaster over the entire surface using a hand tool. After these manipulations, mechanized methods can be applied.

Gypsum plaster is especially easy to break. Such a coating is quite loose, not too durable and unstable to moisture. Before removing the gypsum finish, it is necessary to soak the walls well (20 minutes before starting work). To give the material softness and friability, it is desirable to add a small amount of acetic acid to the water. The same method is used to dismantle plaster on a clay or lime base.

Decorative gypsum plaster is removed quite simply, which cannot be said about polymer (acrylic) or silicate compositions. The latter are highly durable, and it can be very problematic to remove them. However, the advantage of such coatings is that they can be left untouched, since they are a reliable base for a new layer, regardless of its composition.

When dismantling a decorative or Venetian finish, the use of a perforator is unacceptable, since this coating has a very thin layer, and inaccurate exposure can damage the base of the wall.

It is undesirable to knock down such plaster, therefore it is better to remove it with an ordinary scraper or clean it off with a grinding and peeling machine.

With the latest tool, the process is much faster, and even removal textured plaster becomes easy and takes a little time. It is enough just to “walk” several times with the sole of the turned on machine along the surface of the wall with a certain pressing force. The disadvantage of this method is only the need to purchase a rather expensive tool.

Remove from walls concrete plaster not easy. In some cases, this is difficult to do even with a puncher, since the coating is thick and durable. In such situations, it is necessary to use a grinder to cut the coating into half-meter squares. After that, the dismantling process becomes easier.

Removing the decorative finish

How to remove plaster from the wall if the coating layer is very thin? In this case, the coating must not be knocked down, but sanded or simply scraped off.

To simplify the work, it is best to use a peeling machine, it will help save a lot of time.

This machine is designed to scrape off a small layer of surface from the wall, so removing the old coating will not be difficult.

You just need to turn on the device and move it from side to side. After a few minutes, glimpses of the wall will become noticeable.

So it is necessary to process all the required space. With this method, a lot of physical effort is not expended, in addition, purification occurs very quickly.

The only drawback of such a tool is its high cost.

The second option for removing a decorative coating is with the help of a cycle. The old finish just needs to be scraped off by moving the tool from side to side.

The results will also be positive, but the work will take a lot of time due to the fact that the cycle width is very small.

Here, perhaps, are all the ways to get rid of the old mortar on the walls. Which one to use is up to you.

The article will tell about effective methods of work:

It all depends on the condition of the previous coverage and your financial capabilities. In any case, removing from the walls will not be difficult.

When do you need to clean the walls from plaster

Removing plaster

It will not be news to anyone that many residential buildings began to be built back in the Union, and with their special quality they did not stand out from the crowd. Anyone, not even experienced in construction, can see that the walls have obvious irregularities.

In this case, it is impossible to fix something, therefore, before covering the walls with wallpaper or paint, they must be leveled, and for this, absolutely all the old coating must be removed to the “bare” surface. This process can be done on your own, or with the help of experienced professionals.

Pay special attention to the fact that during the repair, in no case should a new fresh layer be applied to the old plaster. Such actions may lead to peeling of the new coating, which has certain application rates, shown in the table.

Dismantling work on knocking down old plaster

Index	Norm for stamps	How were they tested
LS clutch mortar 10/90	Surface leveling mortar LS 35/65	Surface leveling mortar LS 50/50	Surface leveling mortar LS 65/35	Finishing mortar LS 50/50	Putty mixture "Termonit"	Putty mix for blocks
Required layer thickness (mm)	3 to 5	5 to 15	5 to 15	5 to 15	3 to 10	from 2 to 10	from 2 to 10	TU p.1,2
Required amount of water (l/25kg)	3-4	3-4	3-4	3-4	4,5-5,5	5-6	6,5-7	TU p.1,2
Adhesion with base (MPa)	0,5	0,4	0,3	0,3	0,3	1	0,5	GOST 5802-86
Average mortar density level (kg/m3)	190	190	190	190	190	190	190	GOST 8735-88
PH	12,5	12,5	12,5	12,5	12,5	12,5	12,5	TU p.

Removing old plaster

It is also necessary to remove the old plaster in the event that cracks begin to appear on the walls or the quality of the coating does not inspire confidence. If you are not sure about the strength of the old surface, and even more so if you want to use heavy finishing materials (stone, tile, etc.) in the new repair, do not tempt fate.

If you are confident in the quality of the old plaster, but cracks still began to appear - do not make hasty decisions. To check the strength of the plaster, it is enough to lightly tap the hammer to walk along the entire surface of the walls. If you hear an “empty” sound or the material starts to crumble, then you only need to remove the old finishing material.

Tips on how to remove plaster from a wall or ceiling quickly and efficiently, as well as how to properly remove a thick layer of finish, video of removing plaster from walls

Plaster removal may be required different occasions. This may be natural destruction from time to time, poor-quality installation, any negative physical or chemical exposure etc. The reason is not important, the main thing is that local repairs are impossible.

In the process of removing plaster, especially if you have to work with a puncher or peeling machine, be sure to wear a respirator.

Removing the solution with a perforator

The easiest and most effective way to remove is to use a drill or puncher with a “wide chisel” attachment to them.

• We put a nozzle on the tool, turn on the chiselling mode.
• We put the perforator to the wall at an angle of about 80 degrees and pierce the layer to its entire depth.
• We immediately reduce the angle to 30-40 degrees and in this position we move the tool along the wall, removing the plaster.

The same is true in the question “how to remove plaster from the ceiling”: we work with a perforator.

Please note: we use a large entry angle in cases when we break through an untouched area, and start moving from already processed ones with a small one. In the process, we make sure that the perforator, during the removal process, does not damage the material from which the wall itself is made. . How to remove old plaster from the walls: the video illustrates the work of a perforator

How to remove old plaster from the walls: the video illustrates the work of a perforator.

How to remove plaster from walls with a peeling spatula or chisel

You can remove the old solution without the use of power tools. This is done with a wide chisel or peeling spatula.

We lean the tool against the wall, first vertically and, tapping it with a hammer, we cut out a recess for the entire thickness of the coating.

For your information: this method of removing the coating from the walls is the quietest and does not entail the appearance of dust clouds. However, it makes sense to use it only when you need to remove a small area, since the speed of work will be very low.

How to remove old plaster from walls: use a peeling spatula

Removing decorative plaster

How to clean the walls of plaster if it forms a very thin layer? This question arises when it is necessary to remove decorative trim.

If in the case of leveling coatings we had to knock them down, then we will grind or scrape them. The fastest way is to work with a grinding machine.

On its "sole" there are serrated rollers that rotate to remove a small layer from the surface.

How to remove decorative plaster from the walls: it is very easy to do this with a power tool

Removing textured or Venetian plaster in this way will not be difficult. We press the switched on machine with the “sole” against the wall and move it from side to side with pressure.

The number of passes through the same place is determined visually: exposed rough coating- move on to the next section. Cleaning the surface is fast and with a minimum of physical effort.

The downside is the need to purchase a not too cheap tool.

How to remove decorative plaster from walls: work with a grinding machine

Please note: the second way to remove the decorative layer is to scrape off the cycles. The work is not difficult - just move the tool along the surface from side to side, scraping off the finish. The minus of this method is one and quite significant: the cycle has a small width, which means that at a time it will be possible to remove a very small area of ​​​​stucco. The removal will be slow.

Features of removing plaster from different surfaces

Gypsum plasters are the easiest to remove. They are quite loose and at the same time sensitive to moisture. Therefore, about 15 minutes before the start of removal, we soak the walls well. Acetic acid can be added to water. This will make the finish soft and pliable. The same applies to plasters based on lime and clay.

And how to remove plaster from the walls, if it is made recently and from good concrete? Too strong and thick coating is sometimes difficult to remove even with a perforator. In this case, the Bulgarian will help us.

We cut the surface with it to the depth of the finish, with squares of about 50x50 cm. Then it will become much easier to remove.

And if there is a brick wall under the plaster, then do not forget to go through the seams with a chisel to remove the remnants of the finish, which are not noticeable at first glance.

How to remove old plaster from walls: plaster surface can be pre-soaked

Source:

Methods for removing decorative plaster

The removal method depends on the tool used:

• Roughing spatula(unlike the traditional "competitor", it has a large blade thickness). Apply its blade to Venetian or any other decorative plaster, holding it at an acute angle and performing a scraping motion, remove the finish. Move blades from one area to another. Option does not require a large number money and does not create dust clouds. But if the processing area is significant, it will not work. Since the speed of work is minimal. Another important point: with a spatula and a scraper, only loose coatings can be dealt with;
• Peeling and grinding machine. For very thin and strong plasters, stock up on the indicated tool. Select the medium speed mode and, putting effort on the machine, press it against the wall and move it slowly, slowly. Important! When using a power tool, a lot of dust will be released. You can't do without a respirator that protects the respiratory tract.
• Chisel and perforator. Select a medium speed setting and hold the tool at an 80 degree angle. Proceed in the same way as above. But keep in mind that a perforator can harm the base. So take your time and work slowly. In general, the use of a perforator is recommended for the removal of conventional plaster, not decorative materials;
• vibrating machine(also for decorative coatings from 3 mm thick). It differs from the peeling and grinding tool by the principle of operation: the vibrating working body quickly moves in one plane from side to side. Lean the device against the wall minimum angle, and slowly move in a certain direction.

As a rule, it is easier to deal with silicate plasters than with decorative gypsum compositions. Easier to remove Venetian and.

How to remove decorative plaster from walls

In order to qualitatively remove the old coating, it is worth following some tips and instructions that will determine the progress of the work. First of all, you need:

• stock up on personal protective equipment (respirator, gloves, goggles);
• cover the floor plastic wrap so that dirt does not spread;
• clarify what type of plaster was used, the degree of its strength and the approximate thickness of the layer;
• choose convenient means and tools;
• start with simple methods and move on to more complex ones, if necessary, combine them;
• sharpen tools in the process to get faster results.

Before you start removing the decorative coating, do not forget to remove all switches or sockets, as well as all lighting. If all the tools and materials are prepared, you can get to work.

Essential tool for removing plaster

The type and number of tools needed depends on how old plaster is removed. Since decorative plasters are a very broad concept, which contains materials of different thickness and structure, the complexity of their removal will be different. To cover all possible options, we list the most popular fixtures. It can be:

• chisel, preferably with a long handle;
• a hammer;
• spatula / scraper;
• cycle (a tool for removing old textured finishes, other paints and varnishes);
• metal brush;
• perforator;
• plaster remover.

In addition, you will need plastic wrap, a bucket of water, a damp cloth, a spray bottle, since during the whole process you will have to wet the walls with water, and at the end wipe the walls from dust and decorative plaster residues.

Scraping decorative coating and methods for its implementation

To effectively remove the plaster, it is better to choose a scraper with a length of 130-150 mm. Lightly pressing, it is carried out along the wall at the right angle of application. With light movements, the finish is cycled, starting with a small part of the surface, moving to a large one. At the same time, the wall is wiped with a cloth moistened with water. Instead of a cycle, you can use a hammer and a spatula. Before starting work, the decorative finish is moistened with hot water to reduce dust and soften the putty. Next, the wall is tapped with a hammer, due to which poorly held parts of the plaster will fall off on their own. Other parts need "help".

An abrasive disc grinder is effective method and the solution to the question of how to remove Venetian plaster from the walls. For example, Gracelo di Calce, Stucco Veneziano, Marmorino Classico. This tool does not knock down, but erases the plaster. To completely remove it, you need to walk over the surface with a metal brush. Also, with its help, decorative wall paint with a sand effect is well removed.

Other ways to remove coatings

When the coating to be removed is strongly strengthened on the surface, you can use a grinder with special nozzles, which has more power. This tool works faster than a grinder

But here you should work carefully so as not to damage the wall. If a coating, including Venetian plaster, was applied to the paint, an industrial hair dryer will help to remove it, which softens the paint. Then, with a spatula, remove it and cover

How to remove old plaster from walls.

Before dismantling, the wall is carefully examined to find out the condition of the finish. If the coating is not expected to be replaced, then it is enough to remove only poorly adhering fragments and areas around cracks.

To determine the strength of the connection between the coating and the wall surface, it is tapped with a blunt metal object(hammer, pick). In places of tight fit, the sound of blows is more sonorous.

Any movement of the layer under the pressure of the tool is a sign of insufficient adhesion to the base. Such fragments are necessarily exposed.

How to remove old plaster from walls manually.

It is convenient to use a steel spatula, which is used to pry off pieces that fall off, cut them off. Strong parts are knocked down with a pickaxe, an ax or a chisel.

General rule for all types of plasters: before dismantling, the finish must be well moistened. This will soften it and significantly reduce the amount of dust.

Drywall under plaster can be easily damaged. Therefore, strong blows are excluded, it is better to work with cycles - a tool that looks like a well-honed spatula.

First, the integrity of the coating is violated in weak areas, a small fragment is cleared in order to gain access to the end of the layer. Then, having driven a cycle under it, it is necessary to remove the plaster.

If it holds tight and does not give in, you can use a chisel, a chisel, tapping on it with a hammer.

It is better to keep the chisel at an acute angle so as not to destroy the drywall.

What power tool is right for the job?

Strong compositions do not knock down, do not remove with a hammer. It’s easier to pick up a puncher - an electric drill with a swotting mode. True, with this approach, the level of noise and dust is high, which is not always acceptable.

A grinder with a disc designed to work with the appropriate material cuts the plaster into small squares, which are subsequently knocked down with a chisel or perforator.

It is more convenient to remove small pieces of the solution with a grinder with a coarse-grained “sandpaper”. It is desirable to use equipment with the possibility of dust extraction. For example, with a vacuum cleaner.

First, weak areas are removed along the entire wall, working with a pick, a chisel. Only then do they start automated work.

Required Tools

Before proceeding with the dismantling of the old finish, you should take care of the availability of all the necessary tools and materials. For work you may need:

• Putty knife. With it, it is very convenient to remove a layer of old plaster. You can get tools of different sizes. For hard-to-reach places you can use a narrow spatula, for large areas a large wide spatula is suitable.

Important! A tool for these purposes should be chosen solid - flexible models may not be able to cope with the task. It is important to choose a spatula for convenience, it should lie comfortably in your hand.

• Chisel. It is used in the impact method of removal complete with a hammer.
• A hammer. You will need this tool to hit the chisel. This will help to beat off the old layer of plaster step by step.
• Bulgarian or perforator. These tools are used when simpler and easier methods have proven ineffective.
• Starch. It will be needed when using chemical method removal of the coating, namely to soften the old layer.
• A container for diluting a solution to soften the surface. It can be a large bucket, basin, bowl. Often paint buckets are used.
• Rag, sponge or spray bottle. They are necessary for applying a softening solution. It is most convenient and most effective to use a large spray gun. In a relatively short time, it will be able to cover a large area, it will evenly wet the surface with a solution.
• Ladder. Since you will need to work at height, it is best to have a stepladder available. Of course, you can use a table or a stool, however, using a ladder is safer and more reliable.
• Sandpaper. After you managed to remove the old putty from the walls, you need to sand the walls, prepare them for repair work. To do this, you will need sandpaper - it will smooth out all the small transitions and irregularities, and make it possible to make the walls even.

At first glance, it seems that dismantling the old finish requires too many tools and inventory, but this is not so. It may turn out that the old coating can be easily removed the first time, after applying the easy way. Then you don't have to use all the tools. It is also possible that you immediately want to attract “heavy artillery” and use a power tool to do the job with high quality and for sure.

Important! Before proceeding with dismantling, in addition to preparing tools, it is worth purchasing a protective mask and goggles, not to mention clothing. This process is incredibly dusty, it is imperative to ensure the protection of the eyes and respiratory system.

How to remove old plaster

Removing old plaster is not a difficult process if you follow the rules described below:

1. Wet the surfaces to be removed thoroughly with hot water. Important! By doing this, you will reduce the amount of dust and soften the old plaster. Perform this procedure at regular intervals during work so that the walls are constantly wet.
2. Tap the entire surface of the wall or ceiling hard with a hammer or sledgehammer for weak spots. Important! Where the plaster does not hold well, it will fall off on its own.
3. After knocking down a section of plaster with a chisel and hammer, carefully pry and remove subsequent layers of plaster. Important! Start removing plaster from the wall in the direction from the ceiling to the bottom.
4. If the plaster is hard to remove, use the hammer in the "shock" mode.
5. In case the cladding does not want to move away from the walls at all, use a grinder with a disc for concrete.
6. Cut the surface into sectors and remove them one by one. Important! The smaller the sector area, the easier it is to remove the plaster.
7. Thoroughly clean the base with a spatula, taking into account the seams and joints in the blocks and bricks. Important! The quality of the stripping will determine the quality of the setting of the new cladding with the surface of the walls or ceiling.
8. After the main cleaning, go over the wall with a metal brush to remove small elements of old plaster. Important! To simplify the task, use a grinder or puncher with a brush attachment.
9. Collect all construction debris in construction bags and dispose of.
10. Wash the wall to remove construction dust from the surface. Important! Use a wire brush and hot water for this job.

Video

Watch a video that shows the process of removing old plaster with a perforator.

Removing decorative plaster

You can clean decorative plaster using the same methods as regular plaster. Depending on its composition, the old layer can be removed easily or difficult.

However, there are times when a fresh, improperly plastered coating needs to be removed. For example, the bark beetle has protruding granules that will interfere with the application of a new coat. If the composition has not yet had time to grab, it can be easily cleaned off with a spatula. The frozen bark beetle can be rubbed with a grinder until the protruding granules are removed. The smooth surface is primed, and then re-plastered. When working with bark beetle, in case of marriage, you need to know one thing. purchased ready mix in the liquid state, it is weaker; in case of marriage, it will be removed easily. Dry bark beetle, bred at home, has greater strength. To remove such a frozen layer, the wall will first have to be well moistened with water.

Now let's look at how to remove old plaster if it has become unusable:

1. Exfoliating decorative plaster is cleaned off with cycles. For ease of use, it is better to take a tool with a length of 130-150 mm. Passing along the wall, it is necessary to choose the optimal angle of the blade, at which it will be good to pry decorative layer. After cleaning, the wall is well wiped with a damp cloth. The rag should be washed more often in water in order to wash off all the particles of the decorative layer to the maximum.
2. In the absence of a cycle plasterboard wall can be cleaned with a spatula and hammer. Before that decorative surface Plentifully moisten with hot water and give it time to soak. Passing through the decorative layer, hot water soften the putty, weakening the adhesion to the wall. With light blows of a hammer, they tap the entire wall. Weak areas will fall off on their own, and the remnants are pry off with a spatula.
3. Plasters based on polymer and silicate additives are very durable. It's better to remove them. mechanical method. To do this, use a grinder with diamond wheels. Before erasing the plaster, the surface must be slightly moistened to avoid a large amount of dust. The remaining small areas are treated with a metal brush.
4. Clay, gypsum and lime decorative layers are very afraid of moisture. After wetting the walls abundantly, after 30 minutes the plaster can be easily removed in cycles. There will be a minimum of dust here, but dirt, for example, from wet clay is enough. To facilitate cleaning work, it is necessary to spread a film under the falling wet dirt. At the end, the cleaned wall is wiped with a wet rag.

With any method of removing decorative plaster, work on the walls is performed from top to bottom.

Two main ways to remove old plaster

Characteristics different plasters differ in the composition of the solution, which affects their strength. Some species, such as concrete or bark beetle, are not so easy and quick to remove, even if they are already flaking in places. Surfaces of varying strength can be cleaned manually or mechanically.

Manual coating removal

This method is effective for removing weakly adherent plaster and for fragile walls, such as drywall:

• Brick or concrete walls should be dampened with plenty of water before cleaning. Over time, the surface will become damp and soften. A big plus of wetting is the almost complete absence of dust during work. Areas where the plaster is peeling off the base can be easily cleaned with a spatula. The boiled concrete is knocked down with a chisel and a hammer. You can try to cut it down with an axe. Such a beating of plaster is not dangerous for a brick or concrete wall, but you still need to know the sense of proportion.
• Cleaning walls made of drywall, foam block and other fragile material requires caution. An ax or a hammer has an impressive weight and if you do not calculate the blow, the fragile material of the wall will be severely damaged. In this situation, it is better to work cycles. Weak areas are cleaned first. Under the side face of a strong plaster, the cycle is driven by light tapping. If the stuck areas cannot be removed in this way, you can try to lightly cut them down with a chisel. To avoid damage to the drywall, the sting of the chisel is placed at an angle. The blade will not cut the wall, but rather ride along it, prying off the top coating.

Do-it-yourself decorative wall plastering: material selection, preparation, application What is it for walls and how to do it correctly.

After removing all the plaster, the surface should be well swept with a broom.

Mechanical removal of the coating

The mechanical method is considered more aggressive and is used if manual cleaning did not help. Naturally, this can only be done on a solid wall made of brick or reinforced concrete.

Mechanical removal involves the use of power tools:

• A thin layer of plaster can simply be erased with a grinder or grinder with diamond disc. It is better to use a small grinder, otherwise the impressive weight of the tool will quickly affect hand fatigue. Here you need to prepare for a large amount of dust, so indoors it is advisable to use industrial vacuum cleaner.
• Thick layers of concrete are removed with a perforator. The tool is equipped with a chisel-shaped nozzle and the “chiselling” mode is turned on. To simplify the work, a thick concrete layer is cut with a grinder into squares, and then the plaster is beaten off with the same perforator.

The small particles of concrete remaining on the base are cleaned with a metal brush or you can go through the grinder again.

Methods for removing old plaster

There are two main options for working with the surface: partial or complete cleaning. Each of them is suitable for a specific situation.

Partial cleaning

This method is most relevant when it comes to removing decorative plaster. The difficulty is that it is necessary to remove only the top layer without damaging the draft.

You need to follow the following tips:

1. The most popular method is to wet the top layer. To do this, the entire surface is sprayed from the spray gun. If the liquid is absorbed, the coating can be easily removed with a spatula. But such a technique often turns out to be unproductive, because in most cases the decorative mixture is treated with varnish or wax.

   With a spatula, only very thin coatings on a rigid base can be easily removed, for example, ceiling plaster on floor slabs.

2. With a very thin finish layer, a grater comes to the rescue, on which sandpaper is fixed. If the amount of work is large, this method will not justify the loss of time and effort.

   If you need a careful fragmentary removal of damaged parts of the plaster, then it is better to use a grinder

3. The most rational option is to use a grinding machine. Due to the fact that the tool leads to the formation of a large amount of dust, it is recommended to work with goggles and a respirator, as well as spraying with water.

On a note! Surfaces are rarely partially cleaned, only when the question arises of how to clean the wall of decorative material and not damage the rough coating.

Complete dismantling

The need to carry out a complete dismantling occurs much more often, because the reasons leading to this are quite common.

To do this, use the instructions:

1. If the reason for the elimination of the old layer is the presence of voids, then the process will not take much time. It is enough to break with a hammer and a chisel a vertical strip along the edge of the wall. After that, it remains only to pry off the coating with a hard spatula or trowel, which will lead to the collapse of large layers. When doing this, care must be taken to avoid injury or damage to the flooring.
2. If the layer is very strong, then a puncher with a chisel nozzle and a grinder are used for work. With a stone disc installed, the surface is cut into vertical and horizontal stripes, all sections are removed with a perforator. It is important not to go deeper than the thickness of the coating to be dismantled. Of course, sometimes you can do without a grinder, but it significantly increases productivity.

   For a complete cleaning of the wall, it is better to use a perforator or jackhammer with the appropriate nozzle

3. You can completely get rid of the plaster with the help of subsequent stripping and grinding. When removing the old layer, be sure to wet the surface to reduce the formation of dust.

Thus, the process of removing plaster is not too complicated.

It is important to choose the right tool and prepare for the fact that the work will require a lot of time and effort.

Repair and restoration

Damage to decorative wall coverings is not common, but it does happen. For the repair or restoration of Venetian plaster, you will not need high costs and hard physical labor. It is possible to update the finish with your own hands, knowing the basic techniques of plastering and painting.

Possible finish defects:

• Chips and scratches that occur on the outer corners that occur during careless operation.
• Pollution after finishing work or household dirt. Should be restored when large area pollution.
• Exfoliation of the "Venetian" due to water leaks. In this case, repair is not enough. Water can damage the base on which the decorative plaster rests.

"Venetian" is good because you do not have to fix all the coating on the wall. It is enough to restore the desired piece of plaster.

When cracks and cracks appear, restoration can be done with inserts. The repair procedure will be as follows:

1. Examine the strength of the plaster around the damage, tap. If it separates from the wall, then it must be removed.
2. Clean the repair site and the edges of the chips with a brush from pieces of decorative material and dust.
3. Prime the base. To do this, you can independently prepare a solution at the rate of 1 part of PVA and 5 parts of water. Thoroughly smear the cleaned area on the wall with a brush.
4. Next, select the desired plaster mortar. If the base is under drywall or gypsum mixture, then the defects are leveled with gypsum-based putty. If necessary, after drying, the putty is rubbed to perfect smoothness.
5. In order to repair the "Venetian" layer, you will need a decorative material of the same brand as on the wall. If it is not possible to install the manufacturer, then you will have to buy white acrylic plaster. It must be tinted in the same color as the main finish on the wall.
6. The mixture is applied with a soft spatula to the area to be corrected. If the restoration area is large, then they try to repeat the pattern on the wall. Usually this is not difficult. because the Venetian is placed in multidirectional movements without a specific direction.
7. The excess that has fallen on the edges of the Venetian plaster is removed with a damp cloth.
8. The final stage of restoring the finish is the application of wax or glazing.
9. The repaired area is polished with a soft cloth to a uniform shine.

The video below shows the process of repairing a damaged decor.

The final stage of work

Experts insist that new plaster on old plaster - a thankless task. Therefore, the previous finish must be cleaned in the most thorough way. The new coating should lie on a flat surface of the troubles of the remnants of the old plaster mass. Only then will it be as strong and durable as possible.

Therefore, after rough cleaning with a spatula or perforator, the wall must be cleaned with a metal brush.

Important! The manual method of performing such an operation will take you a lot of time, so it is better to install a special brush nozzle on the drill. .

And finally, be sure to wash the wall surface and clean the room from the remnants of finishing materials. It is necessary to carry out subsequent work in cleanliness: the primer is applied to a clean wall.

Surface cleaning instructions

Old plaster

In order to make it easier to remove the old layer of plaster, it is necessary to moisten the surface with hot water before starting the process.

This will help not only in getting rid of excess dust, but also slightly soften the old layer, after which its removal will become less problematic and dusty. Therefore, during the repair, make sure that the walls are always wet.

We remove the old plaster in the apartment

Your next steps should be in the following sequence:

1. determine the strength of the old coating with a hammer (if the connection between the wall and the plaster is poor, the finish will begin to crumble or begin to burst along the wall);
2. if places with a weakly holding finish are found, it can be removed using a conventional spatula (if a spatula or chisel is powerless, you can use a puncher with a “shovel” nozzle);
3. to make cleaning the surface easier, divide it into small squares using a disk and grinder (the smaller the squares, the more you loosen the coating, and it will be much easier to remove it);
4. another stage of the "repair" of old walls is the grinding of surfaces (note that this process is very dusty, because in this way the plaster is not beaten off, but polished);
5. when you manage to remove the bulk of the plaster, work out all the seams and joints well to ensure the greatest bond of the new finish with the surface;
6. at the end of the work, it is necessary to clean all the walls with a metal brush or use a drill with a special nozzle for this.

Demolition work to remove old plaster

After all surfaces are cleaned of the old layer, you can start collecting debris and dust

It is very important that not the slightest layer of the saw remains on the walls, because in the future it may interfere with the high-quality adhesion of the new mixture to the cleaned wall. To "wash" the walls, you can use a brush with hard bristles and hot water.

Now you understand how complicated this process is and there is little pleasant in it. But, whatever one may say, without these actions it is impossible to make high-quality and durable repairs.

When exactly should you remove old plaster from the walls

It is no secret that many houses were built in the era of existence Soviet Union. Volumes of mass construction had reverse side- low quality. Even with the naked eye, you can see that the wall "goes in waves."

In this case, there are simply no options for what to do with old plaster, and before applying another coating to the walls, gluing wallpaper or performing other actions, the old plaster is removed to the ground. This can be done both with your own hands, and seek help from specialists.

Important: It is strictly forbidden to apply fresh plaster on old plaster. This approach can lead to extremely negative results - peeling of the new coating.

The plaster is also removed in cases where cracks or chips have appeared on the surface of the wall, and there is also doubt about the quality, otherwise the finishing material may fall off along with the old coating.

This is especially true in situations where wall cladding will be carried out using fairly heavy materials, such as tiles, natural or fake diamond and others,

It should be noted that the presence of cracks does not always indicate poor quality of the coating. To eliminate all doubt, you can lightly tap the surface with a hammer and find out whether you just need to repair the old plaster, or still have to completely remove it from the wall.

We tap the wall with a hammer.

When to get rid of old plaster

Options in which getting rid of the old solution is relevant It is not always necessary to remove the old coating. Wall cleaning is carried out only in the following cases:

1. The old brick wall has an uneven surface, which is most often found in buildings built during the existence of the USSR.
2. Cracks and chips are formed, which can lead to the fact that the recently applied plaster will collapse.
3. Facing work will be based on the exploitation of not only plasters, but also stone, tiles or any other heavy materials.
4. Dark spots formed on the brick, indicating the appearance of mold on the plaster, which must be removed immediately.

In order to ensure that it is impossible to do without removing the old mortar, the surface with plaster around the entire perimeter is tapped with a hammer.

In the case of removing only some problem areas from a brick wall, they can be hidden by puttying or covered with a mixture based on fine-grained sand.

How to remove decorative plaster from the wall with your own hands

Decorative plaster, depending on the relief and performance characteristics, has a certain service life. And therefore, after some time, it will be necessary to eliminate its remnants. There are several ways to eliminate the finish.

Dust free methods

The surface must be well moistened with warm water from a spray bottle or a wet sponge. The swollen layer of plaster (putty) is easily removed with a metal spatula or scraper. During operation, the wall must be periodically wetted.

If the decorative composition is applied in a thin layer, after soaking it is easily washed off with a rag or sponge with a hard abrasive side.

A less common way to remove the outer layer of decorative plaster is mechanized cleaning of surfaces with high-pressure water jet machines. Cons of this option:

• a large amount of moisture is formed on the floor, which can cause water to leak to the neighbors from below;
• acquire expensive equipment beneficial only to professional builders.

How to clean a brick wall

First, the plaster is removed from areas where it no longer holds. This is easy to check by tapping all the sections with a hammer. A deaf sound means one thing - the facing material has already exfoliated. Voiced blows mean a strong grip of the old composition.

At the beginning of work, a chisel, chisel, chisels, a large steel scraper and a hammer are used.

The plaster is cleaned to brickwork. After removing easily peeling sections of the old coating, further processing is carried out along the brickwork. Place a chisel or chisel between the plaster and brick wall. Then, with weak hammer blows, gently knock the breaking pieces to the floor.

If a durable material cannot be removed hand tools, it is advisable to use a puncher with a nozzle in the form of a spatula in the "chiselling" mode. Another way to remove a durable coating is to divide the wall surface into fragments with furrows. To do this, use a grinder with a disk for stone processing. Then the separated parts of the finishing material are knocked out with a chisel or perforator. Brickwork freed from plaster must be primed and allowed to dry for at least a day.

How to quickly remove from concrete

layer of old coating concrete wall removed with a narrow or medium spatula. We also recommend using a special scraper, the metal edge of which must be well sharpened.

To speed up the cleaning of the walls, we recommend using grinder. Used as a bait grinding wheel with coarse sandpaper or a diamond bowl. The disadvantage of this method is that too much dust is generated during surface treatment. You can reduce its amount with a construction vacuum cleaner.

How to remove old plaster from a wooden wall

Wooden walls in old houses used to be plastered using reinforcing structures - shingles, metal mesh, as well as other improvised materials. When removing the old layer, peeling pieces of plaster are beaten off with a chisel and a hammer, without touching the retaining structure.

If during the repair it is planned to replace the reinforcing structure, a wide vertical furrow is prepared in the middle of the wall, cleaned to wooden surface. Then the retaining mesh is dismantled along with the plaster.

If the plaster is applied directly to the wood, it is scraped off with a spatula or scraper.

Having familiarized yourself with the stages of plaster removal, you can understand how important, but at the same time, this process is unpleasant.

Builders who deal with such situations on a daily basis give beginners some helpful tips:

• Before starting work, you must first determine the location of the wiring and, if necessary, turn off the power supply. Prepare in advance all the tools and materials, as well as the means necessary for personal safety.
• Work with a puncher should be careful not to damage the base of the wall. It is better to remove the plaster layer a little longer than to repair the damaged base again.
• On a small layer of coating, a grinding machine is used. If the layer exceeds 3 mm, a vibratory grinder is used. Her distinctive feature is another principle of movement of the work item.
• If the old finish layer partially remains on the surface, then the next layer must necessarily be slightly weaker. For example, any composition can be applied to a cement-sand or polymer coating. Gypsum or clay mortar. Gypsum is not able to withstand the cement layer, as it is heavier. And on top of clay plaster, nothing can be applied at all, this composition can only withstand its own kind. But the clay-sand mortar will adhere to any surface.

• If the layer of plaster is on drywall or on top of shingles, then dismantling should be done carefully, avoiding strong impacts. It is better to remove the coating manually with a spatula or scraper.
• When applying a new layer of coating, experts advise using a more expensive composition. The main thickness of the previous layer can be "recovered" with the same composition, and applied on top of a more expensive thin layer.
• In the process of dismantling, the problem of recycling the removed plaster becomes acute. AT high-rise buildings it is necessary to immediately organize the export process construction debris, since there is usually nowhere to store it. In private buildings, construction waste must be placed under a canopy before it can be removed (hidden from precipitation), because during rain the waste can increase in weight, which will complicate the loading of garbage.

It should be understood that the weight of the plaster in one square. meter with a coating thickness of about 2 cm is about 20-30 kg, depending on the composition of the finish.

• In the process of dismantling, do not forget about moistening the treated surface. These manipulations will not only help to loosen the old layer, but will allow you to work in the cleanest conditions, without the formation of dust.
• It is better to scrape off the plaster from the ceiling with a scraper or a spatula with a long handle. With the help of such devices, you can remove the coating with both hands.

O possible mistakes when dismantling plaster, see below.

Removing putty from the ceiling

But what if it is necessary to prepare not only the walls, but also the ceiling for the start of repairs? How to remove putty from the ceiling? In this case, there are no differences; it is necessary to act in exactly the same way as in the case of cleaning the walls. Determine the thickness of the plaster layer, assess its condition. In a certain area, try to work with a spatula, after pre-wetting with a starch solution. If this method does not give the desired result, then it is worth resorting to mechanical removal.

What to choose - removal with a chisel and hammer, or cleaning with a perforator or grinder, it's up to you. It all depends on your skills and the availability of the right tool.

Do I need to remove the old durable plaster

The need for a complete cleaning of the wall depends on the specific situation. Some compounds are easier to remove, others are more difficult. In addition, the removal of old plasters is not always justified. But in other cases, this is indispensable.

The relevance in cleaning walls directly depends on the composition of the plaster:

1. Clay. More often used in the decoration of fireplaces, heating shields. Destruction, exfoliation of the clay finish leads to the need to replace it, since the thermal conductivity decreases.

Cleaning is also inevitable when tiling the stove, which requires a denser base.

1. Lime. It is removed when the layer is weakened, and if necessary, apply cement-sand plaster.
2. Gypsum. The dismantling of the plaster is carried out as it is destroyed.
3. Cement. Often dismantled due to design errors made by previous builders (violation of the requirements for cement-sand plasters).
4. Polymer. Majority polymer plasters durable. Any solution can be applied to them. Therefore, the removal of synthetic masses is associated with errors made during their application, leading to delamination and cracking.

The expediency of removing plasters must be justified. Plaster is not wallpaper, it is not recommended to change it without a good reason.

You can remove old coatings completely or partially. It depends on the state of the layer and the composition of the future, new coating:

• Repair. The finish needs some renovation. It is better to remove weak, loose, delaminated fragments. If the area of ​​​​the plaster that has retained its strength is small, the wall is completely cleaned. But if the destruction is not significant, the wall can be left untouched, having cleaned only the problem areas.
• Replacement. The new solution can quite firmly fix on the old (but strong). It depends on the hardness of the previous coating and the composition of the fresh one.

The new plaster should not be stronger than the previous one, so that, while shrinking, it does not destroy the old weak finish, which has less tension.

So, on cement-sand plaster (if it is not loosened), you can put any other solution. Cement cannot be applied to gypsum, since the latter will destroy the surface of the previous one, the adhesion will be insufficient, short-lived. Lime is reliable as a base for gypsum and clay. And you can’t apply anything at all (except clay) - it won’t stick. But herself clay-sand mixture applied to any base.

Dismantling technology

Removal of decorative plaster can be done with a spatula. To begin with, moisten the wall surface with plenty of hot water. This is necessary in order to make the previous finish softer and reduce the amount of dust in the air.

Advice! Experts with extensive experience in performing such operations are advised to periodically repeat the described procedure several times with a certain time interval. If the wall is constantly wet, the work will be carried out faster.

How to remove decorative plaster from the walls after wetting them? To do this, they knock hard on the wall surface with a small sledgehammer. You can also use a large hammer as a working tool. Those sections of the old plaster that did not hold well will fall off instantly.

Note that they work from the top of the wall to its bottom. To make the work go faster, after the first sections of the plaster fall off, pry the finish layer with a hatchet at an angle.

What to do if the plaster does not fall off after soaking? If the plaster layer is held too tightly, you will have to use a puncher by setting the “chiselling” mode on the tool. Remember, this is the fastest way to quickly remove plaster from a ceiling. However, this is the noisiest option and may upset your neighbors. Therefore, such work should be carried out exclusively during the day on a weekday.

Also, cleaning the walls from old textured plaster can be carried out using a grinder, on which a disk is fixed for working on stone or concrete. With this tool, the plaster is cut into small sectors.

How to remove Venetian plaster as efficiently as possible? If you have a power tool for grinding the plaster mass, you can simply wipe this finish off the wall with it. Admittedly, this is quite a dusty job.

Plastering walls with old plaster six stages

Finishing the brickwork of a house or apartment with plaster is the most common option. With proper care, plaster will last at least 20 years. But what to do if cracks appear on the surface? How to quickly remove the plaster from the walls and repair them, we will tell you in more detail.

A solid foundation is the key to success

Before finishing, check the reliability of the old coating. In some cases, you will not have to completely remove the dilapidated layer, only its repair will be required. How to clean the wall from plaster if the old one is cracked? Why can't you apply a new one right away? The base of the finish must be strong, otherwise the new coating will quickly fall off in pieces along with the old one.

Tap the masonry surface. If the sound is deaf, then the layer is holding well and has not moved away from the brick wall. In places where the sound is sonorous, the finish from the old masonry will have to be removed.

You will need the following tools to remove plaster:

1. Wide spatula;
2. An ax or any tool that has a V-shaped working surface;
3. A hammer;
4. Skins of different numbers;
5. Spray bottle with water.

In addition to the tool, you need to buy materials:

Photos increase, click!

Six steps to the finish

The removal of plaster from the walls is carried out until the moment when the old finish leaves a layer that is firmly adhered to the masonry. All loose parts are removed. The work is painstaking and time-consuming, so we recommend that you be patient.

Below is a step-by-step instruction, following which a beginner can clean the walls of dilapidated finishes, and the video in the article will help you deal with the work in more detail:

Before removing the old plaster, it is necessary to clean the surface of the old finish coat. You can remove the paint with a wide spatula, after wetting the old composition with water.

Since water is quickly absorbed and dries to the surface, it is constantly sprayed from a spray bottle. Readers ask how to remove plaster from a wall without dust, dirt.

Use more water, so there will be less dust indoors during operation.

We take tools for removing plaster and go along the masonry. Tap the brick surface with a hammer. In loose places, the plaster itself crumbles, scrape off the remnants with a spatula, after soaking them with water.

In places of formation of cracks, we tap more carefully. If the old layer is cracked, but the adhesion is tight with the brick, then we expand the gap. To do this, we tap its edges with a hammer and expand the hole with an ax.

If there are no gaps, but the layer of the old finish is too thick, then it is also better to remove it. A thick layer of old mortar will fall off due to moisture after you apply a new one.

We coat the cracks with a primer in two layers, let them dry. Inside we lay a new solution, level it to the level of the wall. The remaining masonry surfaces are primed and covered with a thin layer of plaster.

After drying, we level the wall from minor flaws with the help of a skin. The skin is taken first with large grains, gradually moving to the smallest - polishing.

The finished walls are covered with a primer in two more layers. The first layer must dry before applying the second. On the packaging of each manufacturer, the consumption of the primer and the drying time at different temperature and humidity in the room.

On top of the primer we apply the finish coat: paint, wallpaper.

Important! Direct use of the decorative composition does not require a top coat. The decorative mixture is applied to the old one, only after completely cleaning the surface.

New and old compositions may not be in good contact with each other, and the finish will fall off over time and the plaster of the walls will be done in vain.

There should be no questions about how to remove decorative plaster from the walls, since the instructions for ordinary and other types are the same. If you have to remove the entire old plaster, then make the job easier with a puncher. Perforator nozzles are used depending on the thickness and strength of the old layer.

But be careful not to damage the brickwork!

before capital or cosmetic repairs We recommend that you clean the walls from the old finish and only then apply a new one. Otherwise, the finishing work will be done in vain.

material:

How to remove the old plaster yourself, look interesting.

Plaster defects vary in appearance and causes. In addition, they are divided into operational and technological ones, the difference between them is that the former occur over time, and the latter immediately after the coating is installed. Both of them can have the same appearance:

• Small blisters. These are bumps that appear on the surface of the plaster due to the use of hydrated lime that has not been sufficiently cured. Blisters give outstanding material particles.
• cracks. They appear with an overdose in solutions of binders or with poor-quality mixing. In addition, cracks in plaster can occur from its forced drying, especially when exposed to summer sunlight.
• Peeling. It occurs when applying plaster on an overdried base or on a less durable bottom layer of the coating.
• swelling. Such a defect can be caused by applying plaster on a base supersaturated with moisture.

The expediency of dismantling the plaster from the walls

Complete dismantling of old plaster is not always justified. The need for such work depends on certain factors. One of them is the composition of the plaster:

1. Clay. Most often, this coating is used when finishing heating shields or fireplaces. When it is peeled off or destroyed, the thermal conductivity of the base material is disturbed, therefore, in this case, clay plaster must be replaced.
2. lime. Such plaster must be removed when it is weakened or it is necessary to apply a cement-sand coating to the wall in the future.
3. Gypsum. Its dismantling is carried out due to the destruction of the coating.
4. Cement. The need to remove such plaster often arises due to errors made in the preparation of the solution, or violation of the rules for working with it.
5. Polymer. For the most part, such plasters are very durable and are suitable for applying any coatings on them. Therefore, the need for its dismantling may be associated with errors that were made during the application of the composition and led to cracking or peeling of the finish.

Another factor is the condition of the coating layers. It can be the reason for the complete or partial dismantling of the plaster from the walls. If it retained its strength only in a small area, it would be reasonable to completely dismantle the old coating. But if the defects are minor, the wall can only be cleaned problem areas.

When planning a new coating with the removal of old plaster, one should adhere to the main rule: it should not be stronger than the previous one, because otherwise, by shrinking, the new layer can destroy the lower finish, which has less stress.

Therefore, the third factor in the expediency of dismantling old plaster is the composition of the planned coating. So, for example, cement plaster cannot be laid on gypsum plaster, regardless of its condition, for the above reason. On clay plaster, except for the clay itself, nothing can be applied at all, the layer will not hold. But from above it fits perfectly on any base. Reliable cement-sand plaster can be used for laying any coating on it.

Preparatory work before dismantling the plaster

Before removing the old plaster, it is necessary to evaluate the quality of its structure and adhesion to the wall. To do this, tap the entire surface with a rubber mallet. In places where the coating does not hold well, a dull sound will be heard. Such areas should be marked with chalk for further work with them.

The presence of dampness in the room and sections of the walls with moisture appearing on them indicates a weak layer of plaster. In such cases, the problem areas and the problem areas adjacent to them by 0.5 m in each direction are cleaned from the old coating.

It happens that when the wallpaper is removed, a layer of plaster leaves with them. This is a good reason for its complete removal from the entire wall.

Any dismantling should be approached very responsibly, despite the fact that this work does not require special qualifications. The most important thing in it is the observance of safety measures, since often flying fragments of brick, concrete or a cloud of dust can cause damage own health.

Therefore, before removing the plaster, it is necessary to stock up on eye, skin and respiratory protection. A respirator or gauze bandage will be able to protect the respiratory organs, goggles - the eyes, and construction gloves and tight overalls - the skin from damage. In addition, for safety reasons, it is recommended to temporarily turn off the power supply of the room in which it is planned to remove the plaster from the walls.

When choosing a working tool for removing the coating, you need to focus on the thickness of the old plaster layer, the type of its material and the requirements for the cleaned base. The standard kit should include: spatula, axe, pickaxe or hammer, metal brush, long chisel, perforator with nozzle, broom, broom and dustpan, bucket, wide brush and garbage bags.

Important! Dismantling plaster can greatly simplify the presence of an angle grinder or special devices such as AGP and Flex.

The main methods for dismantling plaster from walls

Various types of plaster can be removed from the walls manually or with power tools. Depending on the characteristics of the coating, one method or another is used.

Removing plaster by hand

Before removing the plaster from the wall, it should be well moistened. This softens the surface and reduces the amount of dust. Pieces of plaster that do not adhere well to the surface of the base can be pry off with a steel spatula, removing them. Strong areas of the coating are knocked down with a chisel, ax or pickaxe.

Special care must be taken when removing plaster from drywall partitions and walls. Such a base is easily damaged, so strong blows to it are excluded. In this case, it is convenient to work with loops. This tool is very similar to a sharpened spatula.

First you need to remove the weak areas of the coating. After cleaning small fragments of the wall, access to the side face of the plaster layer will open. Then a significant part of the coating can be removed by driving the cycle under its end.

If it does not lend itself well, you can use a chisel or chisel for trimming. In order not to destroy the surface drywall sheet, the chisel should be held at an angle, gently tapping the tool with a small hammer.

Dismantling plaster mechanically

The mechanical method of dismantling the plaster is used after manual cleaning of weak areas of the coating. Stubborn plaster that is difficult to knock off by hand can be removed with a rotary hammer or angle grinder. The puncher must be equipped with a chisel blade and switched to the “chiselling” mode. It should be borne in mind that his work is accompanied by a high level of noise.

The grinder is equipped with a diamond-coated stone disc for work. With its help, the plaster can be cut into small squares, and then removed piece by piece with a chisel or perforator. At mechanical removal coating, it is recommended to use an industrial vacuum cleaner. It will be able to practically reduce the appearance of dust in the workflow to zero.

After cleaning the wall, it is necessary to remove small areas of plaster residues. To do this, you can use a metal brush or any of the mentioned power tools equipped with an appropriate nozzle.

Dismantling decorative plaster from the walls

Silicate and polymer decorative plasters are strong enough, so it is very difficult to remove them. It is recommended to use the mechanical method described above. If such coatings can serve as a reliable basis for other wall finishes, then they can be left.

It is much easier to dismantle decorative gypsum plaster with your own hands. It has a loose structure and is very sensitive to moisture. These properties can be used. Half an hour before removing such plaster, the walls must be well wetted. Acetic acid can be added to warm water to help soften the material and make it more pliable.

Since the removal of gypsum plaster is a rather "dirty" process, the floor should be covered with plastic wrap before starting work. The removal of the coating can be performed with a scraper with a blade width of 130-150 mm. Having defined required angle cut and sufficient force, you can begin to remove the protrusions of the decor on the wall surface.

If the base is made of drywall, the scraper must be held at an angle so as not to damage it. After removing the relief from one section of the wall, you can move on to the next. After dismantling the decorative plaster on all walls, you need to clean them from splinters and dust, and then wipe them with a damp cloth.

Clay and lime plaster is removed in a similar way.

How to remove beacons after plaster

There is no definite answer to the question of whether lighthouses are removed after plastering. However, there is an opinion that beacons left in the wall can lead to rust on its surface and even cracks. But no one can give a one hundred percent guarantee in favor of “for” or “against”, since it all depends on several important factors.

The first of these is the quality of the lighthouses. Metal profiles made from counterfeit low-quality raw materials can rust under the conditions of the plaster layer. When choosing products from leading manufacturers, this is hardly possible.

The second factor is the thickness of the galvanized layer on the lighthouse. With diligent leveling of the plaster and repeated rules on the profiles, a thin layer of galvanizing can be erased. Then the upper part of the profile will become susceptible to corrosion.

And, finally, the third factor is the humidity of the room in which the plaster is made on the lighthouses. In a dry room, the likelihood of rust is extremely small, especially with a well-functioning ventilation system.

As for the cracks, the opinion is clear here. Metallic profile, left in the plaster, is a kind of reinforcement. Therefore, if you do not try to hang a picture or a shelf on it, it will behave well.

However, in order to save yourself from the slightest risk, the beacons can be removed after plastering the walls, and the cavities left by them can be sealed with mortar.

Disposal of waste after dismantling the plaster

As the dismantling work is completed, a lot of construction debris accumulates in the room. Diligent workers pack it in bags on time so as not to stumble over pieces of chipped plaster. These bags must then be taken out somewhere. But the problem of disposal of construction waste is quite acute. Time and opportunity to take it out is not always available. This is often due to the workload of utilities, the remoteness of objects from city dumps, and a host of other reasons.

For apartment buildings, there are no other options, except for the removal of such garbage. Utilities usually prohibit loading it into a common container. The reason is clear: the weight of plaster, beaten off from 1 m 2 of a wall, is on average 20-25 kg. Therefore, a container filled to the top with such cargo may be unbearable. Therefore, the filled bags are loaded into the car separately and not in the first place.

For private houses, the problem is easier to solve: dismantling waste can be used on the farm. Pieces of cement-sand plaster can be used as a filler for concrete solutions when filling platforms and sidewalks.

The removed clay plaster can be kept on the site for later use, especially since there is no need to mix a new mortar, since the proportions of clay and sand in it are already determined and implemented. It remains only to soak the material.

Gypsum plaster can be used as bulk insulation for floors various buildings. The remains of the lime coating are good for adding to the soil of those places on the site where the growth of trees is undesirable.

How to remove old plaster - look at the video:

Subject to all these rules, the work expended by you will be justified. good result and there will be a real opportunity to complete the work begun within the specified time. Good luck!

Doing repairs with your own hands, quite often you have to get rid of old plaster. In some cases, you can limit yourself to partial repairs, but there are times when you have to completely get rid of the old coating. For example, if you want to level walls that have large differences.

Cleaning the wall from old plaster: a - cleaning with a scraper; b - smoothing with a bream or a hinged grater; c - scheme of movement of the working tool.

Cleaning walls from old plaster

You will need:

• hammer and chisel;
• putty knife;
• perforator;
• garbage bags;
• goggles and respirator;
• spray.

The first step is to determine whether you need to get rid of the old plaster or not. The wall is checked by tapping. If you find a dull sound (in many places), then the plaster is not holding firmly, and it is better to remove it. If there are cracks on the wall, then this is a clear indication of poor-quality finishes. It is also necessary to get rid of the previous coating in the case when the wall has large drops. Since it is much more difficult to level the irregularities than to re-plaster the wall.

You can clean the wall of plaster with a hammer and chisel. This is quite a dusty job, so the surface must be thoroughly moistened with water. Then the chisel is set at a slight angle, hitting it with a hammer. Thus, pieces of plaster are easily beaten off. It is important not to damage electrical wiring. If you do not know where it is, then it is better to unscrew the plugs for the duration of the work.

There are cases when the plaster is held so firmly that it is impossible to deal with it with a chisel and a hammer. Then it is better to use a puncher, on which a chisel attachment is installed and switched to chiseling mode. At the same time, do not forget about safety precautions: wear a respirator, goggles and gloves. The puncher is placed at an angle, pieces of plaster begin to chip off, while the resulting chips are constantly moistened from the spray gun.

If the plaster contains a large amount of cement, then it is quite difficult to remove it even with a perforator. In this case, you will need a grinder with a stone cutting nozzle, with its help the plaster is cut up and down (in the form of a rectangle or square), after which it will be easy to chip off with a puncher.

Don't forget to bag your trash right away so you don't have to clean the floors and waste valuable time cleaning up.

You can also clean the walls from plaster using a layer-by-layer method (suitable only for a thin layer of finish). First, the surface is very well moistened, then it is polished with an abrasive bar dipped in water (easily replaced with sandpaper and a grater). This method is not very convenient, since you have to constantly wash the surface of the bar or replace the sandpaper. The task is greatly facilitated if the house has a grinder with an abrasive disc, with its help it is very easy to clean the wall from the old coating. But this is a rather dusty method, so the plaster will have to be constantly moistened.

You can also clean the wall with a spatula, but on condition that the coating is loose and not very strong. This is enough laborious process requiring a lot of effort and time. Therefore, masters advise using it only as a last resort. Given the recommendations outlined above, you can easily clean the walls of plaster and cope with the task.

Plastering walls is considered the initial stage of ennobling your own home from the inside. The beauty of the interior of the room depends on the quality of such work. Every homeowner wants the uniqueness of the interior space of his home to create a warm atmosphere and comfort. If you decide to repair and update the old walls, then you will certainly have to restore the coating. To do this, it is necessary to remove the old plaster - in whole or in part, adhering to the established rules and recommendations for the work. The information described below will certainly help you to qualitatively restore the old plaster, as well as prepare the walls for the new decorative cladding.

Update the plaster if defects are found.

Depending on the nature of the deformations, all defects are schematically divided into two main groups:

1. Technological - appear in the process of improper application of the solution to the surface of the wall and with poor quality of the batch itself.
2. Operational - arising in the course of operation.

Important! Regardless of what exactly caused the need to restore the coating, dismantle the old plaster correctly and efficiently.

Types of plaster damage

Defects include:

Why else would you need to remove the old plaster?

How to determine the strength of plaster?

Before removing old plaster, first assess its condition and how firmly it adheres to the wall. To check this, use these simple tools:

To verify the strength of the plaster layer on walls, ceilings and slopes, completely tap all surfaces with a rubber mallet - where you hear an empty sound, feel free to remove the cladding.

Materials and tools for installation work

To carry out the dismantling of old plaster, you will certainly need a certain set of tools:

Precautionary measures

In order not to harm your health during the dismantling of the plaster, be sure to follow the following recommendations:

How to remove old plaster?

Removing old plaster is not a difficult process to perform if you follow the rules described below:

Video

Watch a video that shows the process of removing old plaster with a perforator.

Conclusion

It is quite easy to do the dismantling of old plaster on your own, without the involvement of specialists, moreover, in a very short time. Subject to the above rules, the work you have expended will certainly be justified by the expected result, and you will be able to complete all restoration work within a clearly defined time frame.

Preparing walls for finishing involves cleaning old coatings to the ground, this article will discuss how to remove old plaster from walls. The solution to this issue requires a rational approach, since if the layer was applied in violation of the technology or from low-quality materials, then it can simply crumble at the touch, which would be nice and, on the contrary, hold on very tightly. Consider the worst case, and mentally prepare to do serious work.

Mechanical removal method

If you can use a power tool, it will greatly facilitate the cleaning of the walls from old plaster. As a rule, a perforator with a variety of nozzles is used in the work. The procedure is very noisy, dirty and dusty. It can be performed strictly during the allotted hours, for noisy work.

Manual removal method

This option is very labor-intensive, and it will take much more time. The work uses a hammer and a special spatula chisel. These methods are used by Mania Remont specialists in extreme cases when it is impossible to use power tools for one reason or another.

Is free
we arrive at the object;

Professional
workers;

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for repairs;

Fixing the cost;

Preparing to remove plaster from the walls

Before starting work, the surface must be checked for strength. To do this, you need to conduct a small test, using a conventional spatula. With the handle of the instrument, we tap the surface every 40-45 cm, carefully listening to the sound. If the blows are sonorous, approximately the same - as if you were applying them to concrete, then the adhesion of the plaster to the base is good, and this is not lucky. But if the sounds are deaf, using a special tool, in this place you can easily bring down a whole layer that does not firmly adhere to the plaster. If the surface of the plaster is heavily cracked, wide cracks are an indirect sign for recognizing the plaster as fragile. If at least one of the signs listed above is found on your wall, you can safely proceed to removing the old plaster from the wall.

Some builders remove only poorly adhering sections of plaster, in this case there is one rule: you always need to clean up, a little more than it turns out and go beyond this fragment by 20 centimeters to the sides. This method can be used if you need to quickly complete the work.

Removing plaster without unnecessary labor

Not in all cases it is necessary to beat off the coating entirely. And not in all cases, when the plaster is in cracks, this means its delamination from the base. Each specific option, depending on the circumstances, is considered separately, although general rules should not be neglected.

If cracks are nevertheless found on your surface, they must be inspected for shedding edges, with obligatory tapping in this area. If deaf sounds are not heard when tapping, then the crack can simply be expanded with a suitable and convenient tool for this until a v-shaped section is obtained. Later on, at finishing work the crack is well primed and filled with the same plaster material as the main surface. After grouting is completed, provided that the work is carried out in compliance with the technology, there will be no trace of the crack.

In any plastering work, it is necessary first of all to ensure good adhesion of the plaster to the base. Before work, any finish (paint or wallpaper) is carefully removed, and the surface must be primed.

With modern high-quality repairs, in some cases even well-keeping plaster has to be removed in some cases. There can be many reasons for this, the main one is usually one - this is the large thickness of the old plaster layer, which eats up the usable space, which, with the current possibilities modern materials it is unreasonable to bear. In the process of removing the plaster, the surface must be constantly moistened with water, this will prevent the formation of a large amount of dust.

A few basic options for how to remove plaster from walls

It all depends on the current situation, there are two ways to act, to use forceful measures (mechanized method) or to take cover to starve (manual method). The first option can save a lot of time, but it will require a lot of effort, the second is suitable for people who are not limited in time but at the same time have great patience.

Tools that will be needed in two cases to perform the work: a hammer, a special chisel, a spatula, a puncher with a variety of nozzles and a grinder.

Before starting work, you must protect yourself by wearing protective ammunition. To protect hands gloves, eye glasses, respiratory respirator.

Quick force method to remove unwanted plaster from the surface

Step 1: preparatory work

It is necessary to moisten the surface of the wall abundantly, it is better to wet it with a roller. The procedure should be carried out until the water stops being absorbed into the coating. In the event that for some reason it seems to you that the surface is not sufficiently moistened, repeat the procedure until you are convinced of this, it is difficult to overdo it - and there is no harm from it. You can check the quality of impregnation with an ordinary metal spatula by trying to immerse one of its corners as deep as possible into the coating. Only after you make sure that the layer of old plaster has become loose, and the spatula is immersed in it, you can proceed to the next step.

2 step: main work

Everything needs to start with testing, which was described above in this article. Having chosen the most poorly held area, we pick up a puncher with a chisel nozzle, put it in the strike position and try to chip off the first piece of plaster. First, notches are made, then they are hooked, and now whole fragments should already be separated from them. Depending on how well the plaster adheres, it will chip off in small pieces or whole layers.

3 step: cutting

Old housing stock, very often plastered with high cement content, they hold up so well that even a hammer drill can not always cope. The grinder, with a diamond wheel dressed on her, will help to significantly speed up the process. The plaster is divided into squares, horizontal and vertical lines are sawn, in the future the layers will be chipped off inapplicably along the applied cuts. Important point when working with a grinder, it is necessary to ensure that the wall surface is abundantly impregnated with water in order to reduce the amount of dust.

Gradual method of removing old plaster

Step 1: Getting Ready

As in the first case, the surface must be moistened, it must be moistened especially abundantly, and here's why: the work will be done manually, it will take much longer, so negative impact dust will be longer, the less it will be in the air the better.

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