The portal about the repair of the bathroom. Useful advice

Removal of decorative plaster from the walls. How to remove old plaster

If you started repair and found that without removing the old plaster, you can not do, we hurry to tell about how to remove the old plaster from the walls and the ceiling.

By itself, the plaster is a very resistant finishing material, and if it is performed qualitatively, then. But by virtue of certain factors, such as dampness or initially incorrect composition, it can move away from the wall, to sprinkle, crack, swell.

Depending on the focus of the lesion, the decoration can be:

  • partial;
  • full.

To determine the strength of the old coating and how well it keeps on the walls, it is necessary to examine the entire area and only after that make a decision to delete it or replace.

If cement or starts to crumble together with removal of wallpaper or paint from it, it is impossible to "cure", in which case a complete deletion is required.

Testing for strength is produced by a scraper or spatula. If the coating is molded only in separate places, it can be coated with a solution on fine-grained sand or perform a spaciousness of weak sections, after reading them with an eyebrow and procession.

To determine how much walls or ceiling, you need to catch up the entire surface with a wooden cyonyan, a hammer or a spatula handle.

In places where the plaster holds weakly, the emptiness formed under it, so the deaf sound will be heard. In these places, the old coating must be removed.

Colding wall hammer

If dampness has shining on separate areas (from below, from above) and weakened the finish, the removal of the old coating is required not only in these places, but also 50 cm above the level of moisture.

Cracks on the old but sturdy plaster Close up cement mortar And thoroughly rub. In this case, the cracks are pre-expanded to the V-shaped shape and wetted with water.

The solution is applied in several stages: first at the bottom of the recess, then after drying on 2/3 and then it is then embresented to the complete sealing of the crack.

If there are fat spots on the old finish, one surface washing will not be enough. It is necessary as follows - cut out the washed places, after which it is to close them with a new layer.

Tools and materials

Removal of old plaster can be produced different waysThe choice of the tool depends on how firmly it holds on the basis.

Instruments:

  • putty knife;
  • scraper;
  • ax;
  • a hammer;
  • shovel;
  • perforator;
  • bulgarian;
  • machine for removing the coating.

Precautions

  1. Use the respirator or gauze bandage to prevent cement dust in the lungs.
  2. Work in protective glasses and gloves.
  3. Before starting work, determine the location of the wiring, if necessary, disconnect the power supply.

Methods for removing old plaster

Treating

The easiest way that can be used in the first stage is the clutch of the sharp protrusion of the hammer head of the entire working surface. Weak sections of plaster immediately crack and disappear. Then scraper or spatula sweep the wall.

Strong areas should be moistened with water using a cloth or brush, a richly moocked finish from shocks with a hammer is easier.

Removal with a spatula

A coarse-grained crepe plaster can be gradually layer on the layer with a spatula, but this process is quite long. In addition, it requires considerable strength and frequent shifts or sharpening a spatula.

For these purposes, a special grid for stripping is used. uneven surfaceswhich is attached on a holder or a special grater.

In the photo device for stripping surfaces (price - from 120 rubles)

Tip! To reduce the amount of dust, periodically spray the wall with the wall using the sprayer.

Perforator

When manual methods It becomes ineffective, "heavy artillery" is entering, for example, a perforator with a shock function.

How to remove the stucco with a perforator?

Instructions for performing your own hands:

To do this, in the jack of the tool, secure one of the special nozzles, for example, a peak or chisel and, transferring the switch to the "Blow" position, proceed to work.

Well, if you have the opportunity to use for the removal of the grinder. Poping on Ne. cutting circle with diamond edge, make longitudinal and transverse propellers on the surface, and then use manual tools, such as a spatula, scraper.

When repaired, the question often arises how to remove the plaster from the ceiling around the heating risers or between the slab overlap.

As a rule, in old apartments, these places are plastered very inactively, there are bugs or depressions on the ceiling. To align the ceiling, you need to knock off the irregularity of the toporist and run the grinder.

Often in the fields of the shots of the floor panels, the cracked plaster itself falls off and she only needs to be a little to help in it, using a hammer, less often a perforator.

Tip! Shaking the coating from the ceiling is better than a spatula or scraper on a long handle, so you will have the opportunity to work with both hands.

Special power tools are much facilitated - grinding machines (LSHM, EMS, PSHM) or special machines to remove plaster (type Flex, AGP).

The use of a tool depends on the thickness, density, and the required purity of the surface treatment.

To remove coverage from facades big Square Used aggregates high pressure Waters (AVD), which can only be used by professionals.

If after removing the old plaster, you plan to apply a new one, the surface must be carefully cleaned metal brush, after which it is processed and processed by an antiseptic.

Outcome

Now you know how to remove the old plaster. Those who have already come across this work, understand how difficult and an unpleasant process, but, unfortunately, without it, it is almost impossible to perform high-quality repair of walls and the ceiling. It also remains to offer you a video in this article.

Making repair with your own hands, quite often you have to get rid of the old plaster. In some cases, it is possible to be limited to partial repair, but there are times when you have to completely get rid of the former coating. For example, if you want to level the walls having large differences.

Cleaning the walls from the old plaster: A - Cleaning with a scraper; B - smoothing with a teaching or a hinge grater; B - scheme for moving the working tool.

Cleaning walls from old plaster

It will take:

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

First of all, it is necessary to determine whether it is necessary to get rid of the old plaster or not. The wall is checked by climbing. If you find a deaf sound (in many places), it means that the plaster is kept fragile, and it is better to remove it. If there are cracks on the wall, then this is an explicit testimony of poor-quality finishes. It is necessary to get rid of the former coating and in the case when the wall has large differences. Since it is much more complicated to align the irregularities than to shock the wall again.

Clean the wall from the plaster with the help of a hammer and chisel. This is enough dusty work, so the surface must be thicker to moisten with water. Then the chisel is installed under small angle, hit the hammer on it. Thus, pieces of plaster are easily littered. It is important not to damage the electrical wiring. If you do not know where it is located, it is better to unscrew the plugs at the time of work.

There are cases when plaster keeps so firmly that it is impossible to cope with her with a chisel and hammer. Then it is better to use the perforator to which the chisel nozzle is installed and switched to the loafing mode. At the same time, do not forget about safety technique: wear the respirator, safety glasses and gloves. The perforator is set at an angle, they begin to chop out pieces of plaster, while they are constantly moisturized from the pulverizer formed chips.

If plaster contains a large number of Cement, it is quite difficult to remove even a perforator. In this case, the Bulgarian is needed with a nozzle for cutting the stone, with its help the plaster is cut along and across (in the form of a rectangle or square), after which it will be easily sprinkled with a perforator.

Do not forget to immediately put garbage in bags - then you do not have to clean the floors and spend a valuable time for extra cleaning.

Clear walls from plaster can be both a layered method (suitable only for a thin layer of finishing). At first, the surface is very well moistened, then it is cleaned with the help of an abrasive bar, moistened in water (easily replaced by sandpaper and grater). This method not very convenient, as you have to constantly wash the surface of the bar or replace emery paper. The task is greatly facilitated if there is sander With an abrasive disk, it is very easy to clean the wall from the old coating. But this is a sufficiently dusty method, so the plaster will have to constantly moisturize.

It is possible to clean the wall with a spatula, but provided that the coating is loose and not very durable. This is a rather time-consuming process that requires considerable effort and time. Therefore, the masters advise to use it only as a last resort. Given the recommendations set out above, you can easily clean the walls from plaster and cope with the task.

Removing plaster may be needed in different cases. It may be natural destruction of time, poor-quality installation, any negative physical or chemical impact, etc. The reason is not important, the main thing is that local repairs are impossible.

How to remove the old plaster from the walls using different tools

In the process of removing plaster, especially if you have to work a perforator or a rimpable machine, be sure to dress the respirator.

Removal of the solution perforated

The easiest I. effective method Removal is the use of a drill or a perforator with a "wide chisel" nozzle.

  • On the tool we put the nozzle, turn on the loop mode.
  • Pump the perforator to the wall at an angle of about 80 degrees and break through the layer on all its depth.
  • Immediately reduce the angle of up to 30-40 degrees and in such a position, we move the tool along the wall, removing the plaster.

The same in the question "How to remove plaster from the ceiling": We work perforator.

Note: We use a large angle of entry in cases where we break the untouched area, and the movement from the already processed begin with a small one. In the process, follow the perforator, in the process of removal did not damage the material from which the wall itself is made.

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

How to remove plaster from the walls with a rimpted spatula or chisel

It is possible to remove the old solution without applying the power tool. This is done with a wide chisel or a ridestrian spatula. The tool lean to the wall first vertically and, tapping on it with a hammer, roll out the coating to the entire thickness. Next, the chisel / spatula we til down at 45 degrees and continue to work from the "occupation": moving into some side with a continuous tapping of the hammer on the handle.

For your information: This method of removing the coating from the walls is the quietest and does not entail the appearance of dust clubs. However, there is meaning in its use only when it is necessary to remove a small area, since the speed of work will be very low.

How to remove the old plaster from the walls: use a riding spatula

Removing decorative plaster

How to clean the walls from plaster if it forms very much? Such a question arises in cases where you need to delete. If, in the case of leveling coatings, they had to knock them down, then we will grind or scrub. Faster things will go work with a grinding out car. On her "sole" there are serrated rollers that rotate remove a small layer from the surface.

How to remove the decorative plaster from the walls: the power tool is very easy to do

Removal or in this way will be not difficult. The included machine is pressed the "sole" to the wall and with pressure move from side to the side. The number of passes in the same place is determined visually: the draft coating is denied - we move to the removal of the next site. Surface stripping happens quickly and with a minimum of physical effort. Minus - the need to acquire not too cheap tool.

How to remove the decorative plaster from the walls: the work of the grinding out car

Note: The second method of removing the decorative layer is scraping cycles. The work is not complicated, - just move the tool on the surface from side to the side, scraping the finish. Minus such a method is alone and quite significant: the cycle has a small width, which means it will be able to remove very small plot Plasters. Removal will go slowly.

Features of the removal of plaster from different surfaces

It is easier to shoot. They are rather loose and at the same time are sensitive to moisture. Therefore, about 15 minutes before the start of removal, we wake the walls well. Acetic acid can be added to the water. It will make a soft and militant finish. The same applies to lime and clay plasters.

And how to remove plaster from the walls, if it has been done recently and from good concrete? Too strong and thick coating is sometimes difficult to remove even a perforator. In this case, Bulgarian will help us. Cut the surface to the depth of finishing, the squares of approximately 50x50 cm. Further delete will be much easier. And if under the plaster brick wall, I don't forget to walk around the seams to remove the rest of the finishes, which at first glance is not noticeable.

How to remove the old plaster from the walls: gypsum surface You can pre-wet

Dismantling the old wall coating, whether paint or plaster, very an important stage Repair. From how qualitatively this work will be performed, it depends on how new coverage will fall and how long it will last.

The removal of old plaster from the walls is primarily necessary when preparing the surface to finish by any material.

Removing plaster is not only a mechanical process. It is important to correctly spend all the steps, only in this case, the updated cover will last long and will look decent. And first of all, of course, you need to figure out how to remove the old plaster and that it will be necessary for this.

Test of strength

At the first stage, it is necessary to determine: a complete dismantling of the coating is required, or you can only do a partial update. It will take a small hammer for work.

You need to make methodically to strike the instrument handle every 30-40 cm wall and listen. If the sound is deaf, the plaster from the walls will have to be removed, as it has already peashed and can remind of its fraud during the coating. If the sound is ringing, as if from hitting concrete, it means that the old plaster from the walls do not have to shoot, it is securely fixed and will endure weight new finishes.

Checking plaster for strength can be carried out with a hammer.

Determine potentially dangerous places Any stains on the wall surface will help. Wet or fatty markings, visible cracking is a signal to delineate the circle, within which the coating should be removed.

In order for the next stages of repair, there are difficulties, it is necessary to remove the plaster within a radius of 30-40 cm from the inclusive place. To work, it is not necessary to redo work, it is better to immediately dismantle in the locations of defects (at least for the designation problem space). And only later to do the removal seriously, since one hammer or spatula will not work out.

Be sure to remove all areas with flax stains. On such zones, a new coating will not be recorded, and the considerable stage of work will have to redo.

Back to the category

Tools and aid

After analysis, you can move to the dismantling of the coating. For this, you will need the following tools and remedies:

For quick I. quality removal Plasters Use a special typewriter.

  • a hammer;
  • putty knife;
  • scraper;
  • bulgarian;
  • ax;
  • perforator;
  • water pulverizer;
  • glasses and protective mask.

A special machine can be useful. With it, it is much easier. Acquire such an aggregate not necessarily, it can be rented.

The perforator must be sufficiently powerful (with the "Blow" function and the corresponding durable nozzle). Such a perforator can be rented.

Means individual protection Neglect not worth it. During the dismantling, a lot of dust and sandy crumb is formed, from which the glasses and mask will protect.Not superfluous, there will be durable rubber spraying gloves that will ensure reliable fixation of the tool.

The pulverizer is necessary for the irrigation of the wall. This technique will help designate poorly fixed places. In addition, moisturizing will not allow dust to rise.

The ax can be used as a large spatula analog for removing individual formations.

Back to the category

Removing old plaster

After all tools are prepared, you can move to the study of how to remove the old plaster.

First of all, it is necessary with the help of a hammer to repel the poorly fixed areas. Usually at this stage, the old plaster begins to separate from the walls with whole formations, which greatly simplifies further work. You need to strike every 20-30 cm, the more the coating will be removed from the walls at this stage, the easier it will work in the future. The entire perimeter needs to be cleaned with a spatula or scraper.

It is necessary to periodically moisten the wall. It will not allow dust to rise into the air and weaken the moderately detached areas, also to be deleted. If some sites do not succumb to, it is necessary to moisten them and leave for a while. Such an impact will weaken the layer, and it will easily be deleted.

For particularly strong places it is necessary to use a perforator. It must be configured to the "Strike" function. With it, you can easily remove large layers. The chisel needs to be placed under sharp angle To the wall and gradually clean the layer.

If you need to remove a rather strong old stucco from the walls, you can use a grinder with a fixed diamond circle. To do this, make horizontal and vertical notches on the wall and remove separated areas with a hammer or perforator. Shells weaken the canvas, and the removal of plaster from the walls will pass without problems.

If you are planning to repair your housing soon, be prepared for what you have to remove the old plaster from the walls. It has a direct impact on the ease of removal of plaster, how qualitatively the process was performed on its application. Whatever difficulties have arisen before you, treat this work with all seriousness.

When should I clean the walls from the plaster?

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

In this case, it is impossible to correct something, so before covering the walls with wallpaper or paint, they need to be aligned, and to do this - remove an absolutely all old coating to the "naked" surface. This process can be performed on your own, or resorting to the help of experienced specialists.

Note special attentionDuring repair, in no case cannot be applied to the old plaster a new fresh layer. Such actions may entail a new coating, which has certain application standards, are displayed in the table.

Indicator Norm for marks What way was tested
Solution for clutch LS 10/90 Solution for alignment of the surface of drugs 35/65 Solution for alignment of the LS 50/50 surface Solution for alignment of the surface LS 65/35 Solution for finishing work LAN 50/50 Putty mixture "Thermion" Putty mixture for blocks
Necessary layer thickness (mm) from 3 to 5 from 5 to 15 from 5 to 15 from 5 to 15 from 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
Coupling with the basis (MPa) 0,5 0,4 0,3 0,3 0,3 1 0,5 GOST 5802-86
Medium level of density of the solution (kg / m 3) 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.

It is also necessary to remove the old plaster in the event that cracks or the quality of the coating began to appear on the walls, it does not inspire confidence. If you are not confident in strength old surface, even more so you want to use heavy in the new repair decoration Materials (stone, tile, etc.) - Do not tempt fate.

If you are confident as an old plaster, but the cracks still began to appear - do not take sustainable solutions. To check the strength of plaster, sufficiently light tapping hammers walk along the entire surface of the walls. If you hear the "empty" sound or material will begin to sprinkle - then it will only need to remove the old finishing material.

Preparatory work

Starting repairing the room before removing old finish, you need to determine where the wiring is located, as well as purchase required tools and protection.

To perform work, you will need such tools:

  • hammer, sledgehammer, ax and other percussion instruments;
  • chisel with a long handle;
  • putty knife;
  • brush with metal bristle;
  • bulgarian, drill and nozzles for her;
  • perforator;
  • water capacity or pulverizer;
  • bucket, Savok, broom.

Individual protection means are also necessary:

  • respirator to protect the respiratory organs from dust;
  • gloves from dense matter (this will allow to protect your hands from calluses);
  • protective glasses.

Surface cleaning instructions

In order to remove old layer The plaster was easier, it is necessary before the start of the process to moisten the surface of hot water.

This will help not only in getting rid of extra dust, but also a slightly soften the old layer, after which his removal will become not so problematic and dusty. Therefore, while repairs, make sure that the walls are all the time wet.

Your following actions must have such a sequence:

  1. determine the strength of the old coating with the help of a hammer (if the connection between the wall and the plaster is bad - the finish will begin to crumble or start to burst on the wall);
  2. if there are places from a weakly holding trim, it is possible to remove it using a conventional spatula (if a spatula or chisel will be powerless, you can use a perforator with a shovel "shovel");
  3. to clean the surface become easier, divide it into small squares using a disk and grinding machine (the smaller the squares will be, the more you weaken the coating, and it will be much easier to remove it);
  4. another stage of the "repair" of old walls is grinding of surfaces (note that this process is very dusty, because the plaster does not disappear, but is stiff);
  5. when you manage to remove the bulk of plaster, work well all the seams and joints to provide the greatest bunch of new finishes with the surface;
  6. at the end of work, it is necessary to clean the entire walls with a metal brush or use a drill with a special nozzle.