How to plaster a large through hole in a wall or seal a gap in brickwork before wallpapering. How and how to seal holes in a concrete ceiling Sealing openings in reinforced concrete walls

The appearance of cracks in the walls is a problem. Both for multi-storey buildings and for private ones. It contributes to paint shedding, wallpaper peeling off and other troubles that any owner would like to avoid. You should not be especially afraid, just solve the problem as it appears and do not drag it out - anyway, nothing is eternal. The main thing is that a small crack does not lead to serious damage, otherwise you will have to spend more effort, time and money. Here I will tell you how to fix a crack in the wall with your own hands.

Why cracks appear

The causes are quite varied. If you see cracks no more than a millimeter in your house, then there is no reason to panic. Experts call this a perfectly acceptable phenomenon, in which you should not rush to the hardware store and purchase materials for repairs.

The appearance can cause a change in the ground under the house itself plus insufficient bearing capacity of the walls. Such a crack can be decorated with a mirror. But here it is necessary to pay special attention to the material from which the building is made. If brick and concrete are one thing, then a crack in a foam block wall is already a big danger for the entire construction. But the panel house is not too troublesome to repair.

Not the last role is played by swelling and shrinkage - the behavior of the material under humidity and different weather conditions. This also includes the purpose of use of the building and the loads exerted on it.

Constant vibrations, wind, increased traffic, high temperatures are also important factors that affect the appearance of cracks in one or another element of the house.

Why is a crack dangerous?

The danger appears if the cause of the split is construction defects after a major overhaul or restructuring. To make sure, apply a plaster mark or control strip to the crack. Take a little specially prepared gypsum and apply it to the cracked place, about the width of the palm of your hand. If within three to four weeks the crack does not appear, it is not so scary.

If it appears, wait another eight weeks (experts allow this period to be extended to twelve weeks). When it gets bigger, contact an expert. With it, it will be possible to determine how deep the problem is, and in what way it is best to solve it. You can monitor the changes in the split using special wall beacons. They will help keep track of both vertical and horizontal changes.

Crack in plaster

In order to get rid of such a "guest" in the plaster, you will need the following tools:

brush,
putty knife,
brush,
plaster mortar,
sandpaper.

Repair consists of the following steps:

First of all, thoroughly clean the area from construction debris and dust. If there is, remove the adhesive paint. This is done as follows: the surface is wetted with a brush, and then scraped off with a spatula. Remove dust with a brush, and then thoroughly rinse the place with water.

Make liquid gypsum mortar. Do not forget that the interior walls are suitable for the use of lime mortar plaster. Gently cover the gap with mortar using a spatula.

The filled gap should dry well. Next, use sandpaper and level the wall.

Separately, we will consider how to deal with cracks "cobwebs" that appear in the plaster on the internal and external walls. They may not be so large, but their significant danger lies in the fact that the cobwebs can “spread” all over the wall, justifying their name. The reason for their appearance is usually the broken technology in the process of preparing the solution.

To get rid of them on the interior walls, you will need the following materials and tools:

fiberglass mesh or cullet - fiberglass called "spider line";
putty knife;
brush;
sandpaper;
putty.

The repair is done like this:

Clean the area where the splits have appeared well;
Prime the surface thoroughly;
Glue the mesh onto the applied layer of putty. Please note that the mesh should cover the entire putty;
Apply putty again on top of the fiberglass mesh and wait until it dries well;
Treat the area with sandpaper;
After that, you can paint the wall or stick wallpaper.

Now let's move on to work with the elimination of "cobwebs" on the outer walls. Usually it is done in private homes. In order to make repairs, you will need:

mixture of Ceresit CT-29,
reinforced mesh.

Crack in brickwork

Necessary tools, materials:

brush;
putty knife;
sealant;
primer.

Repair steps:

Widen a crack in a brick wall (clear and deepen the cracked section of the wall);
Carefully apply a layer of primer.

Using a construction gun, seal with seam sealer.

Important! When working with a sealant, pay attention to its composition! If it is a silicone type sealant, then it cannot be used, because it is not suitable for further work with paint and plaster.

Remove any excess applied material.

Crack in drywall

You will need:

fiberglass tape;
putty;
putty knife.

Repair steps:

Carefully apply a layer of putty to the resulting crack. Treat both angled sides of the split;
Apply fiberglass tape to the area treated with putty.
The excess part of the tape can be removed;

Then, using a spatula, apply an even layer of putty to the tape. Proceed as follows: start from the middle and carefully move towards the edges. It is worth pressing the tapes with a spatula so that a little putty protrudes from under the tape itself.

All of the above is more suitable for small cracks. The big ones are a little more difficult. But since large splits are much more dangerous than small ones, I will tell you how to close them in both internal and external walls.

When sealing a large crack inside, you will need:

small spatula;
large spatula (will go for decoration);
sponge;
brush;
gypsum mortar;
reinforced tape (but gauze is also suitable).

The repair process is as follows:

Clean the area well with a damp sponge.

Make a gypsum grout (exactly as described in the point about small cracks), but add more vinegar or wood glue. These additives will help slow down the setting of the solution.

Use a chisel and hammer to trim the edges of the crack.

Apply a neat layer of putty. It is necessary to make sure that not only the crack is closed, but also part of the wall around it. In this case, you will have a guarantee that cracking will not go further.

After that, cover the treated area with gauze or reinforced tape.

Proceed to putty work. Your goal is to putty so that the glued tape (gauze) is not visible.

Then you can safely glue the wallpaper (paint the walls).

Large splits in the outer walls can also be repaired independently. To do this, prepare:

lime-cement mortar;
putty knife;
plaster.

The work steps are as follows:

Clean the split area well;
Make a lime-cement mortar. Provided that the crack is very large and through, pieces of brick can be added to the mortar;
The finished solution is applied to the crack. Wait for it to dry;
Carefully plaster the repaired area.

It happens that entire sections can move. Then it is necessary to make a screed of steel strips and brackets.

Using the methods described above, you can easily and quickly seal the cracks that have arisen in your walls. The main thing is to carefully read the tips and act in stages, then success and a worthy appearance of the walls are guaranteed!

Video “Cracks in the walls of the house. How to avoid it"

Video about the causes of cracks in the walls of the house and methods for their elimination.

Over time, holes or cracks may appear in any walls. The appearance of such defects is considered commonplace. Very often, they can appear during the installation and repair of heating systems, air conditioners, as a result of rearranging furniture and much more. When preparing surfaces for further finishing, it is necessary to beat off old and unnecessary plaster, so fragments may be chipped, which will need to be restored. In addition, cracks appear sooner or later on any concrete during operation.

You can come up with many ways to mask damaged areas: cover with a picture, wallpaper, and much more. But this will not solve the problem itself - the hole will remain. In order to repair defects in the wall, the help of craftsmen is not required, everyone can do all this on their own.

Causes of cracks in the wall

The occurrence of cracks can not only spoil the appearance of the room, but also become a serious problem for the functioning of the entire building. One of the most common causes of defects is uneven shrinkage of the structure. Often this happens when the load on the walls is not properly distributed or the soil is poorly compacted during the construction phase. If the structure is strongly beveled, then the cracks should be repaired only after the causes of such shrinkage have been eliminated and its foundation has been strengthened. With strong displacements, there is a threat of collapse of walls and ceilings.

Climatic conditions can cause cracks: sudden changes in temperature, exposure to sunlight or wind. Joints between internal and external walls on the highest floors of the building and stairwells are especially at risk.

Cracks are eliminated by introducing cement mortar into the open cavity.

Concrete eventually dries out, so it is possible for various defects to appear on it. They can occur both on the facades of the building and inside. Through holes appear most often in reinforced concrete buildings.

Damage restoration methods

There are several ways to repair wall damage. The method and scale of repair depends entirely on the size of the defect. If holes remain after dismantling unnecessary nails or screws, then it will be enough to apply putty or other cement-containing material.

For deep and large cracks, more serious measures are needed. Such holes often occur after replacing heating systems or electrical wires and sockets. Usually, cement or repair plaster has to be used to seal serious defects.

Required Tools

The specifics of the work on the restoration of concrete walls depends on the extent of the problem, but the set of tools needed is almost the same for all cases. To clean surfaces, stock up on a dry brush or household vacuum cleaner. When filling cracks with mounting foam, it is necessary to prepare a knife to cut off excess material.

In order to close the hole with putty or cement mortar, you will need narrow and wide spatulas. They are convenient to cover up problem areas. In case of large damage, as well as to give strength, a reinforcing tape is required. It is smeared with cement composition and becomes a full-fledged component of the wall, which will protect it from repeated destruction.

Do not forget about the final stage of the restoration of the walls. For grouting the surface, prepare sandpaper with a fine-grained coating.

Before filling the hole, it is necessary to expand it with a long screwdriver so that the repair mixture penetrates as deep as possible. After it should be cleaned of cement dust. This can be done with a vacuum cleaner or any dry brush.

Training

The entire surface is thoroughly wetted with water using a spray gun or foam rubber sponge. Do not neglect this work to prepare the hole. Wetting will not allow the putty mixture to quickly give water to the concrete wall.

Applying putty

Next, put a layer of gauze fabric and stick it on a damp surface. After a few minutes, you need to start puttying the defective area. The solution is applied and carefully rubbed into the hole.

After the mixture dries, everything is cleaned with sandpaper having a fine-grained surface. The final stage of puttying holes is painting the repaired area or wallpapering it.

Serious Damage Repair

The initial stage of this work is generally similar to the preparatory stage of puttying small holes. Previously, the entire damaged surface of the wall is cleaned of stones, dust, sand and wetted with water. Instead of water, the surface is often treated with a sealant. The hole is then filled with bricks or stones, which are mixed with a cement mortar. This design will save the bonding material and strengthen the repaired area.

Concrete work

The concrete mixture is prepared in the following proportions: three parts of fine sand are added to 1 part of cement. Instead, a special repair mixture or gypsum is often used.

This material can be bought at any hardware store. It is a dry cement powder, which should be diluted with water and get to work. Strong and dense in structure, the composition allows you to qualitatively repair large chips in a concrete wall. You should wait until he grabs the concrete.

Surface treatment

After the restorative material to eliminate defects hardens and dries, the entire surface is puttied, then rubbed with a spatula. The voids should be carefully covered and leveled. Everything must be left to dry completely. This usually takes up to 12 hours.

After the surface treatment of the walls is carried out. First, the places to be restored are carefully sanded with sandpaper, then facing works are carried out: pasting or painting the treated places.

Sealing deep cracks in the wall

Very often, in the process of formation and shrinkage of the house, the seams between the panels may open or deep cracks appear. The restoration of these damages will not cause serious problems.

The easiest way is to seal them with mounting foam. It is supplied in aerosol cans, which allow you to quickly and easily repair such defects. Foam perfectly fills empty spaces and penetrates deep into the most inaccessible cracks. The material perfectly adheres to various surfaces, expands and hardens in a matter of minutes when interacting with air. When using mounting foam, a good result is guaranteed to eliminate deep holes and cracks.

Preparatory activities

Before starting the restoration, it is imperative to prepare the surface with which further work will be carried out. The gap is cleared of debris, concrete fragments, dust and dirt. Then everything is wetted with water.

Foam application

Before applying the mounting foam, the container is thoroughly shaken for about a minute so that its contents become homogeneous. During operation, the container should be placed vertically upside down. This is necessary because of the gas inside, it is lighter than foam, and therefore displaces its cylinder.

It is recommended to fill cracks from the bottom up. If the damage is too deep and serious, the mounting foam should be applied in layers, each of which is laid after the previous one has completely dried. This method allows you to qualitatively seal the open cavity and dry the material.

After filling the crack, the raw mounting foam should not be touched by hand. Any touch can affect its structure and slow down the hardening process. You should be patient and wait for the material to dry completely.

The final step will be the removal of excess mounting foam with a regular knife. Then the surface should be sealed with putty. Leveling is done with sandpaper.

Do not worry about the remaining hole or crack in the wall. Any defect, no matter how large it is, is simple and easy to repair with your own hands without outside help.

The most important condition for the quality of the restoration is the strict adherence to all recommendations.

techno-concrete.ru

how to repair, how to plaster and putty?

A hole in a concrete wall is not as big a problem as it seems at first glance. It is possible to repair such a defect even in the case of a significant hole size. Moreover, for this work you will not need special tools or expensive materials, and the embedding itself can be done by hand.

Where do defects in concrete come from?

Before closing a hole in a concrete wall, the master must understand the reasons for the appearance of such a defect. Otherwise, all the work done will have to be repeated again and again.

The most innocent possible cause is human intervention. In concrete walls, through channels are cut out to bring the pipeline from the air conditioner to the outside, blind recesses are drilled for fasteners for a bracket or sconce, shafts are punched for supply and exhaust valves. Over time, the air conditioner, sconce or TV move to another place, and the hole remains, along with the problem of how to close the hole in the wall. But this problem is solved simply - without any preliminary work.

Defects in concrete after application of steel reinforcement

The intervention of nature is a more complex case. Temperature deformations of the soil and building materials lead to the appearance of cracks, chips and other defects covering the structure from the foundation to the roof. In this case, before filling holes in the concrete wall, the owner of the building will have to strengthen the foundation using solutions recommended by the architect and designer. Well, after completing the work to eliminate defects in the integrity of the wall, you will have to restore the thermal insulation and waterproofing of the supporting structures.

A slightly less complicated case is the destruction “from old age”, when part of the reinforced concrete slab begins to crumble, exposing the reinforcing skeleton. After detecting such a defect, it is enough to simply repair the wall and cover it with waterproofing.

Materials and tools - what do we need?

Before we close the hole in the wall, we need to prepare materials and tools. The following options can be used as a filler for a blind or through channel in a wall or concrete floor:

Polyurethane foam is an ideal material with high moisture and heat resistance, but very low structural strength.
Cement-sand mixture, alabaster, plaster or putty - these materials have high structural strength, but they lack heat resistance and moisture resistance. In addition, the materials from this set are afraid of temperature deformations.
Mastic is an option with sufficient strength and high moisture resistance. In addition, mastic is not afraid of temperature deformations. However, not everyone will like the appearance of a mastic-covered wall.

In addition, before filling a hole in the wall with the fillers mentioned above, the master must prepare the following set of tools:

Perforator, paint brush and vacuum cleaner - useful for expanding and cleaning cracks.
A bucket and a construction mixer - will be needed for the preparation of fillers from dry mixes.
Spatula, trowel, sandpaper - necessary for making and grouting viscous fillers.

A spatula is needed for the final grout

Well, the process of introducing the filler depends on its dimensions and the depth of the excavation. Therefore, further in the text we will consider the technology of sealing both small and large defects in the walls.

How to patch a small hole?

With blind recesses on the inside, we proceed as follows: we expand the defective area by a cone with a perforator, and the base should be deep in the wall. We remove the dust from the recess with a brush or pump it out with a vacuum cleaner. We knead the plaster or sand-cement mixture (3 to 1), obtaining a solution of medium humidity (a little thinner than plasticine).

Before closing a hole in the wall, we inject about a quarter liter of water into the channel. The walls must get wet, otherwise they will draw moisture from the plaster or cement, causing a crack to appear. We take a little solution on the spatula and press it into the wall, moving the tool in parallel. We continue this operation until the recess is completely filled. We glue a reinforcing mesh on the damaged place (usually they glue the joints of drywall sheets with it) and putty the wall using the same solution.

If the channel is located on the outside, then the elimination of this defect will proceed according to the following scheme: we expand the recess, removing loose concrete, remove dust with a vacuum cleaner or brush. We knead the solution (from parts of sand to one cement), fill the recess with this mass. We restore the layer of thermal insulation and put a waterproofing patch using hot mastic or tar. Very small defects (from a dowel or similar) can be repaired with mounting foam without cleaning or moisturizing. After hardening, the foam is cut off and sealed with mastic or wallpaper.

Closing a big gap - how to do it?

How to close a hole in the wall in case of large dimensions of the through hole? Of course, the same concrete. In this case, we simply have to fill the hole by arranging a cement-sand plug that fills a huge hole. Before you start restoring the integrity of the wall, you will have to reinforce the future cork with a reinforcing frame. To do this, you need to remove pieces of loose concrete using a perforator and drill channels with a diameter of 10 millimeters in the side “faces” of the breach. It is desirable that they are on the same line.

After that, you fill the drilled points with cement (by a third) and hammer reinforcing bars there. Tie the touching ends of the rods with wire (or weld). As a result, you get a reinforcing frame buried in the wall. Moreover, if the wall reinforcement remains in the gap, then no drilling is needed - you can weld the reinforcing grid directly to it.
Having finished with the reinforcement, you can start building the cork formwork. To do this, you need to take sheets of DSP or OSB and fix them on the wall (inside and out), covering almost the entire gap. Sheets can be fixed with dowels, reinforcing them with oblique supports. Moreover, the shields should not completely cover the gap - the upper cut of the formwork should be located below the edge of the gap (by 8-10 centimeters).
After that, you can start preparing the solution. And if you don’t know the brand of concrete used in the construction of the wall, and you don’t know how to cover up a hole in the wall, then you better focus on the following proportions - 1 bucket of cement, 3 buckets of sand, 3 buckets of rubble. After thoroughly mixing this solution, pour it into the opening closed by the formwork through the gap left.
After 10-14 days, the formwork can be removed and plastered or puttyed with a cement plug, leveling the wall. Moreover, before you plaster a hole in the wall, or rather a gap closed with a cork, you will have to brick an 8-centimeter gap in its upper part.

After the completion of the construction of the cork, which clogged a large gap in the wall, the place of the eliminated defect is treated with mastic, on which thermal insulation boards are glued.

What to do with cracks - a simple instruction

How to putty a hole in the wall if its width is equal to the thickness of a human hair? Yes, almost the same as any small-sized defect. First, we take a puncher or wall chaser and expand the crack on the inside of the wall, cutting a groove with rectangular walls. Remove dust and plaster residues with a vacuum cleaner. Secondly, we process the strobe obtained at the site of the crack with a primer that increases the adhesion of concrete. After applying the primer, it is better to wait 1-2 hours, after which we repeat the procedure, moistening the strob.

Cracks in concrete

Thirdly, we prepare a sand-cement mortar from a dry mixture. Some masters recommend using ordinary starting plaster, but such mixtures do not have the necessary margin of safety. In especially critical cases, a reinforcing fiber can be added to the mixture, which increases the strength of the solution. Fourthly, we fill the strobe with a solution using a spatula. At the end, we glue a fiberglass tape onto the patched area and putty it flush with the wall. Moreover, before the finishing putty, the wall is left alone for a day, waiting for the hardening of the surface layer of the sand-cement plug.

Fifthly, from the outside, the crack is smeared with mastic, having previously expanded it with a perforator. In extreme cases, you can use liquid solutions that increase the waterproofing properties of the wall. Self-healing concrete can also be a good option for aggregate. However, ordinary mastic will give a good result at a minimum cost of consumables.

obustroen.ru

How to close holes in a concrete wall large and through?

Repair is a responsible and long-term event. Therefore, most people prefer to trust repairs to professionals. They will calculate the cost of the material without errors, and take into account all possible nuances.

However, sometimes there are situations when it is not necessary to call a specialist, because minor breakdowns can be fixed on your own at no extra cost. To do this, you just need to know the exact instructions and follow them. Such minor household troubles just include the resulting holes in the wall.

How to close holes in a brick or concrete wall?

In order to repair the holes in the wall yourself, you must follow the step-by-step instructions:

Step 1. So that the material with which you will cover up the hole does not fall off after drying, it is necessary to increase the diameter of the hole with a knife, nail or other sharp object.
Step 2 Using a dry rag, brush or vacuum cleaner, remove dust and remnants of old putty from the hole.
Step 3 Wipe the treated hole with a wet rag or foam pad to help the mortar adhere better.
Step 4 Wait for the water to dry.
Step 5 Using putty, seal the hole in the wall.
Step 6 Wait for the mixture to dry.
Step 7. Using sandpaper, sand the surface to make it smooth.
Step 8 Cover the former hole with an appropriate material: wallpaper, paint, decorative putty, etc.

That's all - the hole, as it never happened!

Now let's turn your attention to the material that can be used to eliminate such holes.

Several factors influence the choice of material:

the size of the unwanted hole;
type of damage;
the location of the damaged surface.

Ways to "patch" holes in the wall

With putty

Putty is a universal, proven material for leveling various surfaces over the years. In this case, the nature of the surface itself and the material from which it is made are absolutely not important. Why? Yes, because there are many types of putty, each of them has its own properties and characteristics.

Types of putty:

cement- Can be used for both indoor and outdoor work

Advantages:

Suitable for both indoor and outdoor work
very durable
high moisture resistance

Disadvantages:

the impossibility of maintaining the desired texture when stripping.

plaster.

Advantages:

variety of subspecies: external and internal

Disadvantages:

Can only be used for interior work
very poor moisture resistance

acrylic ready mixes.

Advantages:

used only for finishing work

Disadvantages:

it is impossible to apply such a putty in a thick layer for a thorough leveling of the surface

In any case, the choice of putty depends on the degree of surface roughness and the type of work.

If the unwanted hole is very small, only the finishing putty will be enough.

If the hole is more impressive, proceed according to the plan:

with a construction knife clean the hole from crumbled pieces of materials and align the edges of the unwanted hole;
place crumpled newspapers in the hole to save your time and material;
cover the hole with newspapers plaster mixture;
if necessary or possible it is desirable to glue the construction tape over the hole area;
then this place in the wall with a spatula of the appropriate size is processed with putty;
putty dries;
fill up the old hole sandpaper.

No type of putty is suitable for sealing through holes. Such a hole will be leaky.

Correctly apply putty not only to the damaged area in the wall, but also around it.

On average, the drying time of putty is 6 - 8 hours. Until the putty dries, further work can not be carried out in any case. The sealed surface must be checked for strength and cracks. If any are formed after drying, they need to be repaired.

With mounting foam

This material is multifunctional. You will not do without it either when installing windows and doors, or when sealing cracks and holes.

Types of mounting foam by composition:

one-component– immediately ready for use;
two-component– immediately before use requires mixing, special construction equipment (construction gun or mixer gun).

Advantages:

when leaving the balloon, the volume of foam increases several times;
foam easily adheres to any surfaces;
high density;
high curing speed.

Disadvantages:

over time, shrinkage of the material is possible.

Mounting foam can be safely used if the hole in the wall or between the walls is small, but deep. No material will penetrate as deep into the wall as foam will.

After the mounting foam has hardened, it will be necessary to cut off its excess with a construction knife, clean it with sandpaper and putty.

With repair mix

Advantages:

high ability to adhere to other surfaces;
frost resistance;
moisture and steam impermeability;
durability;
strength;
does not change properties at temperature difference;
is an antiseptic.

Types of repair mixtures:

mixtures for the repair of vertical surfaces;
mixtures for the repair of horizontal surfaces.

Various types of repair mixtures are commonly used when sealing large holes.

How to make an almost imperceptible hole?

In order to close up such a hole, you can use any of the above materials, depending on your capabilities and the expected result.

Before starting work, you need to prepare the following materials and tools:

long nail or something similar - they need to increase the diameter of the hole in the wall so that the material with which you will close the hole better penetrates the base
vacuum cleaner- remove excess dust
brush and water- with a wet brush, it is necessary to process the hole in order to improve the quality of the work
repair mortar– directly for sealing a hole
putty knife- for applying repair mortar
sandpaper- for final processing of the result

If the hole in the wall is large enough and deep enough, your efforts will be much more needed.

After the standard cleaning of a dust hole with a vacuum cleaner and a damp brush, it is necessary to seriously approach the issue of choosing a material. Most often, specialists use several finishing materials at once - for starting and finishing work separately. For example, building foam is covered with finishing putty on top.

If, after the finishing material dries, cracks appear in it, they must be covered up again.

If the hole is completely impressive in size, then a piece of brick or other material can be placed in it, and then sealed with a building mixture. This will significantly reduce the cost of finishing materials and save your time.

How to patch holes in drywall?

Drywall is a material designed for leveling walls. For its manufacture, refractory gypsum and sheets of special cardboard are used.

Advantages of drywall:

Disadvantages of drywall:

fragility
high hygroscopicity
the inevitability of reducing the size of the room through the use of profiles and drywall sheets

As you can see, there are not so many flaws, but sometimes unwanted holes still appear in this material. When sealing holes in drywall, the properties of this material should be taken into account.

In order not to change the drywall sheet completely, you can close the hole in it.

Ways to seal holes in drywall:

Method 1. It is necessary to insert a piece of drywall or other similar material into the hole and fix it from the outside with screws
Method 2. Fix the patch with plaster and adhesive watering can, followed by putty

Tool needed to patch a hole in drywall:

putty knife
drywall knife or hacksaw
drywall planer
drill

Step 1. Using a drywall cutter, cut a rectangle out of the hole in the drywall.
It is important that the drywall knife is sharp.
Step 2 Using a planer, cut off the edges of the resulting rectangle at an angle of 45 degrees.
Step 3 Cut out the patch with a knife.
The payment must be appropriate. To do this, the edges of the patch also need to be cut at an angle of 45 degrees with a planer. The thickness of the patch must match the thickness of the base sheet.
Step 4 Cover the edges of the rectangle with plaster and apply a patch.
Step 5 Additionally secure the patch with adhesive tape around the perimeter.
Step 6 Let the solution dry well.
Step 7 Cover with starting, and after finishing putty.

In any case, it is necessary to act depending on the size of the hole, its location and the characteristics of the material. And absolutely everyone can do this work!

poznaibeton.ru

Professional finishers know perfectly well how to close a hole in a concrete wall.

Another thing is when a similar question arises before a person who is far from construction and repair.

Multi-storey buildings today are built of brick and reinforced concrete.

These are reliable and durable structures. Without disputing this thesis, one small feature should be noted.

In order to fix a shelf or carpet on the wall, you have to use a hammer drill or impact drill.

It is difficult to punch a hole in a concrete wall in other ways.

And if in the future there is a need to close the hole, then you have to use a different tool and materials.

Why do holes appear in the walls?

When moving into a new apartment, tenants have to spend a lot of effort to equip their living space.

On the walls it is necessary to fix cabinets, shelves, lamps and other household items. Expensive "plasma" is mounted on a concrete wall using a reliable bracket.

And for each mount you need to drill a hole - a hole in the wall is a must. Some new settlers punch holes in the walls "just in case".

Increasingly, this is done when installing a dedicated line for the Internet. This approach can be understood and explained.

Holes and openings in the walls remain after the transfer of electrical outlets and switches to another location.

Tools and materials

Most often, holes in the wall are closed during current repairs. If the lamp was moved to another place, then you need to remove the bracket, which is fixed to the wall.

After that, a relatively small hole will remain in the concrete. Such a hole can simply be covered with putty. Level this place with a spatula.

After the composition hardens, clean the resulting stain with sandpaper and glue it with wallpaper or paint over.

In the case when a large fragment of concrete falls off at the junction of the walls, it will not be possible to eliminate the resulting defect in a similar way.

It requires other techniques and additional materials.

For the production of work, the following tools and materials will be required:

putty knife;
sandpaper;
household vacuum cleaner;
mounting foam;
brush or piece of foam rubber.

To this list it is necessary to add putty and other finishing materials. To seal through holes and chips of a significant volume, a cement-sand mortar can be used.

Comprehensive instructions on the proportions in which the mixture should be diluted are given on the package.

Hole filling technology

Starting the repair, it is necessary to assess the amount of work to be done. It is possible to close up a small cavity that has formed on a concrete wall without much effort and preliminary preparation.

Another thing is when the hole has a large area. If you hurry up and do all the work in haste, then after a short period of time all these efforts can go to waste.

A piece of plaster will just fall off. In this case, it is necessary to follow certain rules and sequence of actions. There is nothing special about this procedure.

With such repairs, you can easily handle it yourself.

Filling up a large hole in a concrete wall

In order to reliably close up a large hole, it is necessary to ensure high-quality adhesion between the wall and the repair mortar. The first step is to clean the hole from the dust that has settled in it.

It is more convenient to do this with a vacuum cleaner. The inner surface of the hole must be well moistened.

The moisture content of the surface should be the same as the moisture content of the mortar used to seal the hole.

In this case, the wall will not "pull" moisture from the solution, resulting in a monolithic connection. When the hole is more than five centimeters in diameter, it should be backfilled.

As a buta, you can take a piece of brick or concrete.

The gaps between the buta and the wall just need to be covered with a solution. After the mortar has thoroughly “stand up”, the surface of the patch must be carefully puttied.

At the same time, the repaired area is leveled with a spatula flush with the wall surface.

It is important after each operation to withstand a certain period of time in order for the solution to set and harden.

At the final stage, you should thoroughly clean the repaired section of the wall with sandpaper. Wallpaper is glued to the prepared place or paint is applied.

Sometimes in houses of old construction, during repairs, old plaster crumbles and finishing mortar falls out of the corners. In order to seal holes of this size, you can use mounting foam.

The volume formed in the corner between the walls is filled by three-quarters with foam.

After that, you need to dilute a special mixture, which is sold in stores and is designed to seal deep chips in concrete walls.

Fill the remaining volume with the solution for 2-3 times, allowing it to harden. The final finish of the joint is done with putty. At this stage, it is important to achieve a smooth surface of the walls.

Plugging a small hole in a concrete wall

A medium-sized hole in a concrete wall can be easily repaired with foam. If the size of the hole is smaller than a matchbox, then it is sealed with putty.

Before starting work, you need to clean the surface of the hole from dust and moisten it with plenty of water. Then putty is applied in several stages.

When the hole is small in area, but deep, it needs to be cleaned and moistened. Putty is rubbed inward and smoothed out from above.

When it hardens, this place is cleaned with sandpaper and that's it, the process is completed. After that, paint is applied to the repaired place or wallpaper is pasted.

Cracks in a concrete wall

When repairing residential premises in houses of old construction, not only holes, but also cracks are found on concrete walls.

Before proceeding with the restoration of the walls, it is necessary to make sure that the cracks do not expand. You can do this with paper beacons.

It is best to seal large cracks with concrete mortar.

In this case, it is necessary to clean the surface of the crack, grease with PVA glue and fill with sand-cement mortar. Or use a ready-made mixture that is designed for such repairs.

General rules

Carrying out cosmetic repairs in the apartment, one has to face unexpected difficulties. The resulting holes in the concrete walls must not be left. They definitely need to be sealed.

The quality of these works depends on several components. When making repairs, you need to purchase dry mixes for wall decoration and sealing holes in advance.

Stock up on putty and prepare a complete set of tools. You need to know that such work is always accompanied by the formation of dust. It is best to free the room from furniture.

If repairs are not planned in the near future, then any hole can be covered with putty and sealed with wallpaper trimming.

The main thing is that the hole in the concrete wall is sealed.

When the time comes for repairs, everything will be done as required.

stoydiz.ru

How to fix a hole in the wall and how to do it?

Life often gives us surprises, and they are not always pleasant. Sooner or later, each of us happens to face various everyday problems that we have to solve on our own.

It is unlikely that anyone will turn to specialists if a hole has formed on the surface of the wall. It does not matter how it appeared, but it must be eliminated.

However, in reality there is nothing difficult in repairing a hole in the wall yourself.

How to patch holes in a brick or concrete wall

The scale of repair work on the surface of a brick or concrete wall will depend on the extent of the damage. If these are holes left when removing old nails, screws or dowels, then it is enough to cover them with putty or a special repair mixture.

Let's see how this can be done step by step:

To do this, take a long nail or screwdriver and widen the hole. This must be done so that the putty penetrates as deep as possible.
Then, with a dry brush or vacuum cleaner, clean the place from the resulting dust and crumbs.
Now moisten the resulting hole with water. For this purpose, you can again use a brush or a spray gun, or a piece of foam rubber. This should be done so that moisture from the repair mixture or putty is not quickly absorbed into the wall.
After a few minutes, putty the damaged area, carefully rubbing the mixture into the hole.
After absolute drying, clean the surface with fine-grained sandpaper.
Now the place can be painted over or wallpapered.

If the hole in the wall is large enough and deep enough, for example, it was left after replacing pipes or dismantling an electrical outlet, then in this case one putty will not be enough. You will need either cement, or building plaster, or ready-made concrete repair mix, which can be purchased at a hardware store.

What to do in this case:

Before sealing a hole in a wall, prepare the hole by cleaning it of debris and wetting it with water.
Then fill the void with pieces of stone or brick mixed with cement mortar. This will save putty and strengthen the restored area. The cement mortar for this purpose is prepared from one part of cement and three parts of sand. In this case, you can also use building gypsum or concrete repair mix.
When this cement (or plaster) "patch" dries, putty it, carefully filling and leveling the remaining voids and cracks.
The area treated in this way should dry well. This will take at least 12 hours.
When everything is dry enough, level the surface with fine-grained sandpaper. So that this place does not show off with an ugly mound, it should be leveled with the rest of the wall surface.
The wall is leveled, and now it is quite possible to paint or wallpaper it.

If, during the shrinkage of the building in the room, the interpanel seams parted or a deep crack formed, then here you should not puzzle over how to close up such a hole in the wall. In this case, use mounting foam, which is sold in aerosol cans at any hardware store. It perfectly fills voids, easily penetrating even into hard-to-reach places. In this article, you can learn about how to repair cracks of varying complexity.

Mounting foam perfectly adheres to various surfaces and quickly hardens in air. So a good result in the process of eliminating deep cracks and holes is guaranteed to you.

Before starting work, prepare the place - clean it from dirt, dust and other debris. Wet the surface of the wall.
Before applying the foam, you need to shake the can well so that its contents turn into a homogeneous mass. This will take you less than a minute.
During operation, hold the cylinder upside down, as the gas contained in it, which displaces the mounting foam, is lighter than it.
Fill vertical slots from the bottom up.
If the hole is too deep, apply the contents of the balloon in layers, applying a new layer after the previous one has dried.
After filling the hole, do not touch the raw mounting foam with your hands, this can change the structure of the material and slow down the process of its hardening. Wait until it dries.
Remove excess dried foam with a knife and putty the surface.
When the putty dries, level the place with fine-grained sandpaper.

Now you yourself see that it is simple and easy to close any hole in a concrete or brick surface, no matter what size it is, without outside help.

The main thing is to correctly assess the scale of the repair work and carry it out in accordance with the rules for using the material that you will use when restoring your wall.

How to patch holes in drywall

Now in many houses and apartments the walls are finished with plasterboard. By the way, drywall can align the walls. It is worth noting that the material is quite fragile and can easily be seriously damaged. As a result of an accidental impact, the drywall sheet may break. And how to fix a hole in the wall in this case? Definitely not worth preparing for a major overhaul.

In this case, it is enough to put a simple patch on the canvas.

To do this, cut a rectangle around the damaged area with a hacksaw. From a new sheet of drywall, make a patch, using a cut piece of the old sheet as a template. On the reverse side of the hole formed in the wall, attach two wooden slats parallel to each other with self-tapping screws. Now put the prepared patch there and fix it with screws. Fill the edges. When the surface is dry, sand it down with fine grit sandpaper. That's all. Decorate this place and no one will know that there was once a hole here.

Holes from nails or screws on a drywall surface do not need to be patched. They are easy enough to putty.

That's all the tricks of sealing holes in the wall. We hope that our advice will help you adequately cope with this problem.

Useful materials

Tsugunov Anton Valerievich

Reading time: 4 minutes

It often happens that when preparing an apartment for repairs, it turns out that all the walls are full of holes and resemble Swiss cheese. Holes and strobes remain from old wiring, nails for cabinets and shelves, former sockets and switches, and simply from plaster that has fallen off with a piece of wall. The ceiling window in the bathroom is also an eyesore. But it is not in vain that they say that the eyes are afraid, but the hands are doing. Let's roll up our sleeves and start repairing defects, especially since there is nothing complicated here.

Closing small holes

To begin with, we clean small holes on the wall from screws or dowels with a nail of a smaller diameter. We blow it with a compressor to expel dust from there, we moisten it with plenty of water to equalize the surface moisture and the raw repair composition. The resulting holes are filled with putty to the maximum depth. The final touch is sanding flush with the main surface.

What to do with the middle hole in the wall?

Repairing a hole from an old outlet or a carefully removed utility pipe is not much more difficult than getting rid of a small hole. The principle of surface treatment is the same:

We remove all parts falling off the wall. Including suspiciously staggering ones - they can bring a lot of trouble at the end of the repair.
Using a brush or vacuum cleaner, remove crumbled pieces and dust.
Spray the surface liberally with water from a spray bottle.

For better adhesion of the solution to the wall, it is necessary to use
We fill the hole with a solution of sand, cement and water (3: 1: 1) or use a ready-made plaster mixture, let it dry.
We control the drying process: if cracks appear, we rub it with a primer, leveling the surface. Dry, and then, if necessary, repeat the priming.
Finish with a sander or by hand using medium grit sandpaper.
After complete drying, we can assume that the hole is sealed and the surface is ready for finishing.

Drying of the solution takes at least 12 hours. During this time, no manipulations with the treated surface can be performed.

Through holes from pipes are pre-supported on one side with a piece of plywood. Having closed the surface on one side of the wall, we similarly carry out the procedure on the other.

How to close a large hole?

Sometimes it happens that when repairing walls, not only pieces of plaster fall out. They can be joined by broken pieces of concrete or brick. In this case, it is necessary to use additional reinforcement of the wall surface.

Similarly to the previous cases, we clean the hole from everything superfluous.
We drive in dowels or screw in powerful screws. If the pothole is large enough, they need to be additionally tied with wire.
We remove debris and dust with a dry brush or vacuum cleaner.
Wet the surface with plenty of water.
In a standard cement-sand mortar, add broken brick or crushed stone.
With the resulting mixture, we close up the fallen piece of the wall, let the solution stand and dry.
If necessary, we plaster the surface of the entire wall or locally a section of the hole, followed by drying and overwriting the cracks.
Now you can start finishing.

Apply cement mortar in thin layers, allowing them to dry thoroughly. A thick layer is guaranteed to crack or fall off.

What to do with large holes in the wall?

After inaccurate dismantling of pipes, large holes remain in the walls. To restore the integrity of the surface, you will first have to lay the main part of the breach with bricks. We expand the hole so as to make the masonry even. Then we lay out the brick on the mortar as the main patch. Further manipulations are carried out according to the algorithm described above.

Fixing holes in drywall

Carefully remove a small piece of old wallpaper around the hole. On a wet surface, we apply gypsum diluted with water with a knife. Glue a new piece of wallpaper on top of it. You can also stick a decorative application on the damaged surface.

If the GKL is damaged by a “fallen” locker, the repair algorithm will be as follows:

Draw a square or rectangle around the hole with a pencil, capturing the cracked surface.
With a hacksaw, cut a hole along the marked lines.
From the wrong side, we fasten two parallel tires to the drywall with screws, on which the patch will hold. The number of tires increases depending on the size. As a frame, you can use wooden slats, durable plastic, metal profile.
We transfer the contour of the cut piece to a new sheet of drywall and cut it out as accurately as possible.
We fix the patch to the rails previously screwed to the wall, driving the screws so that the caps do not protrude above the surface of the sheet.
We seal the seams with gypsum putty.
We remove irregularities with sandpaper.
We produce further primer either in the area of the former hole, or on the entire surface of the wall.

Professional finishers know perfectly well how to close a hole in a concrete wall.

Another thing is when a similar question arises before a person who is far from construction and repair.

Multi-storey buildings today are built of brick and reinforced concrete.

These are reliable and durable structures. Without disputing this thesis, one small feature should be noted.

In order to fix a shelf or carpet on the wall, you have to use a hammer drill or impact drill.

It is difficult to punch a hole in a concrete wall in other ways.

And if in the future there is a need to close the hole, then you have to use a different tool and materials.

Why do holes appear in the walls?

When moving into a new apartment, tenants have to spend a lot of effort to equip their living space.

On the walls it is necessary to fix cabinets, shelves, lamps and other household items. Expensive "plasma" is mounted on a concrete wall using a reliable bracket.

And for each mount you need to drill a hole - a hole in the wall is a must. Some new settlers punch holes in the walls "just in case".

Increasingly, this is done when installing a dedicated line for the Internet. This approach can be understood and explained.

Holes and openings in the walls remain after the transfer of electrical outlets and switches to another location.

Tools and materials

Most often, holes in the wall are closed during current repairs. If the lamp was moved to another place, then you need to remove the bracket, which is fixed to the wall.

After that, a relatively small hole will remain in the concrete. Such a hole can simply be covered with putty. Level this place with a spatula.

After the composition hardens, clean the resulting stain with sandpaper and glue it with wallpaper or paint over.

In the case when a large fragment of concrete falls off at the junction of the walls, it will not be possible to eliminate the resulting defect in a similar way.

It requires other techniques and additional materials.

For the production of work, the following tools and materials will be required:

putty knife;
sandpaper;
household vacuum cleaner;
mounting foam;
brush or piece of foam rubber.

To this list it is necessary to add putty and other finishing materials. To seal through holes and chips of a significant volume, a cement-sand mortar can be used.

Comprehensive instructions on the proportions in which the mixture should be diluted are given on the package.

Hole filling technology

Another thing is when the hole has a large area. If you hurry up and do all the work in haste, then after a short period of time all these efforts can go to waste.

A piece of plaster will just fall off. In this case, it is necessary to follow certain rules and sequence of actions. There is nothing special about this procedure.

With such repairs, you can easily handle it yourself.

Filling up a large hole in a concrete wall

It is more convenient to do this with a vacuum cleaner. The inner surface of the hole must be well moistened.

The moisture content of the surface should be the same as the moisture content of the mortar used to seal the hole.

In this case, the wall will not "pull" moisture from the solution, resulting in a monolithic connection. When the hole is more than five centimeters in diameter, it should be backfilled.

As a buta, you can take a piece of brick or concrete.

The gaps between the buta and the wall just need to be covered with a solution. After the mortar has thoroughly “stand up”, the surface of the patch must be carefully puttied.

At the same time, the repaired area is leveled with a spatula flush with the wall surface.

It is important after each operation to withstand a certain period of time in order for the solution to set and harden.

At the final stage, you should thoroughly clean the repaired section of the wall with sandpaper. Wallpaper is glued to the prepared place or paint is applied.

Sometimes in houses of old construction, during repairs, old plaster crumbles and finishing mortar falls out of the corners. In order to seal holes of this size, you can use mounting foam.

The volume formed in the corner between the walls is filled by three-quarters with foam.

After that, you need to dilute a special mixture, which is sold in stores and is designed to seal deep chips in concrete walls.

Plugging a small hole in a concrete wall

A medium-sized hole in a concrete wall can be easily repaired with foam. If the size of the hole is smaller than a matchbox, then it is sealed with putty.

Before starting work, you need to clean the surface of the hole from dust and moisten it with plenty of water. Then putty is applied in several stages.

When the hole is small in area, but deep, it needs to be cleaned and moistened. Putty is rubbed inward and smoothed out from above.

When it hardens, this place is cleaned with sandpaper and that's it, the process is completed. After that, paint is applied to the repaired place or wallpaper is pasted.

Cracks in a concrete wall

When repairing residential premises in houses of old construction, not only holes, but also cracks are found on concrete walls.

Before proceeding with the restoration of the walls, it is necessary to make sure that the cracks do not expand. You can do this with paper beacons.

It is best to seal large cracks with concrete mortar.

In this case, it is necessary to clean the surface of the crack, grease with PVA glue and fill with sand-cement mortar. Or use a ready-made mixture that is designed for such repairs.

General rules

Carrying out cosmetic repairs in the apartment, one has to face unexpected difficulties. The resulting holes in the concrete walls must not be left. They definitely need to be sealed.

The quality of these works depends on several components. When making repairs, you need to purchase dry mixes for wall decoration and sealing holes in advance.

Stock up on putty and prepare a complete set of tools. You need to know that such work is always accompanied by the formation of dust. It is best to free the room from furniture.

The most common problem inside and outside the premises is the appearance of holes and cracks, which can be conditionally divided into several types. It is about how to cover up a hole in the wall that we will talk about. Whatever the size of the hole, the preparatory process is always the same. If, they must be carefully cut near the damaged area. Clean all edges from plaster, whitewash or paint. In a word, get rid of everything that can fall off.

Small size hole

Small holes can result from a hammered nail, dowel, or other mechanical damage. It looks terrible and can harm the general, so it is necessary to close the gaps in a timely manner. To do this, you will need a metal spatula, a mixture, a screw, sandpaper and a vacuum cleaner. The sequence of work performed is as follows:

Insert a suitable size screw into the hole and move it in all directions. You need to achieve expansion of the hole channels.
Use a vacuum cleaner to remove the created dust.
Apply the solution with a spatula, press it into the recess and level the surface.
After complete drying, clean with sandpaper. Depending on what finishing material you have on the wall, seal the surface. If it can look rough, then apply an appliqué or something like that.

Alabaster or any kind of gypsum is used as a solution. You can also use cement with sand (in a ratio of 1: 3).

big hole

Such holes occur mainly after removing the socket box and other mechanical effects. They must be sealed immediately, since the structure of the overlap depends on the size of the gap. They are smeared with any gypsum solution. you will need all of the above, plus a piece of stone. The recess is cleaned with a vacuum cleaner and moistened with water to soak.

If the hole reaches 5 cm, then simply cover it with a solution, and after drying, coat it again, because the mixture cracks. Since it is more difficult to close a hole in a larger wall, you will first have to smear a thin layer of mortar, then put a piece of stone or brick on it inside and carefully cover it with plaster.

A finishing putty is applied over the sealed hole and. Next, it is skinned.

hole through

A through hole can appear from anywhere, for example, under the weight of household appliances or all kinds of cabinets. Breaking off, they violate the integrity of the wall structure. Naturally, this needs to be sealed from both sides, but if you are not able to do this, then you can handle it one-sidedly.

The tools you need include a spatula, dowels with screws, an electric drill, bricks and, accordingly, the mortar itself.

Using an electric drill, you need to drill and install the four strongest dowels with screws into the hole. Thus, a support for the brick will appear so that it does not fall out to the other side. Stone or brick must be selected in the appropriate size so that it closes the hole tightly enough.

All this is strengthened only with cement mortar, made as we described above. Make sure that there are no gaps left, fill all the empty spaces with the mixture. Next, sand and cover with the necessary material.

Hole in drywall

To insulate the room, carry out soundproofing or simply align the walls. Unfortunately, this material does not withstand mechanical damage and most often cracks form on it. But, experts advise how to remove a hole in a drywall wall.

To begin with, draw a repair place with a pencil in the form of a regular rectangle. A ruler will help you with this. With a clerical knife or a hacksaw, cut all the damaged material clearly along these lines.

Then you need to cut a plank in the shape of a rectangle, but so that it is slightly narrower, but longer than the specified parameters. Mount a large screw as a handle, which must be removed at the end of the work. Insert the plank into the cut hole and press it against the back of the drywall, fix it with self-tapping screws.

A rectangle is cut out of a piece of drywall, strictly corresponding to the hole. We insert it into the hole and strengthen it with self-tapping screws, which must be screwed inward as deeply as possible. Then, we impose a reinforcing mesh and carefully rub it into the putty. After drying, we sand and apply another layer of putty, but already finishing.

Hole at the seams

As a rule, huge holes are found at the seams. They may appear at the time of removal of the plaster layer. By the way, remember the golden rule: everything that can be easily knocked down - remove it. Because sooner or later, but weak pieces of the wall will make themselves felt. These holes cannot be patched. Therefore, they close them in two ways:

The empty cavity is filled with fragments of brick and tightly cemented.
Mounting foam is poured into such a gap, which is able to adhere the cement floor very tightly.

cracks

Holes in the wall can occur if cracks are not covered for a long time, when they appear, the wall structure weakens. To prevent this, it is necessary to seal the cracks at their first appearance. To do this, the crack must be carefully cleared on all sides at an angle of forty-five degrees. Prime and coat generously.

Solutions for this are used different. Firstly, this is the same mixture that was kneaded for wall decoration, and secondly, these are various plasters and adhesive bases, which include cement.

But the most suitable material is sealant. It wins in that when it dries, it acquires a rubber consistency, therefore it has the ability to expand and contract, which is why new cracks do not appear on the wall.

Sealant is applied using a construction gun. Excess can be removed with a rubber or metal spatula. The only contraindication is silicone-based sealants, as they contain fatty substances that do not come into contact with paint and putty.

other methods

How to cover up a hole in the wall if the gap is narrow but deep? To do this, use mounting foam. The guide tube is inserted into the hole and the foam is launched. When it is completely dry, you need to apply a layer of putty.

A simpler, one might say, grandmother's method includes the use of an ordinary newspaper and adhesive tape. The newspaper is carefully rolled up to the desired size and hammered into the slot, and the adhesive tape is glued on top. Then all this is leveled with finishing putty. For greater strength, you can glue another piece of adhesive plaster over the putty and putty again.

If the gap is very deep, fill it up to half with newspaper, and on top with any gypsum mortar. Now there are special repair compositions based on cement. They harden fairly quickly and are extremely durable.

The repair composition is used both for holes and for chips on the surface of the wall. The mixture is applied in several stages. This is an important condition, since the strength of the setting depends on this. Without fail, let's dry each new layer. At the end of the work, remove the excess and level the surface with a dampened spatula.

Categories

Popular