Whitewashing is one of the simplest and inexpensive ways ceiling repair. In some cases, you can even whitewash the ceiling using old whitewash, but the quality of such finishing will depend on a competent approach to the work.
If whitewash is applied to the ceiling for the first time, then preparing its surface consists only of leveling and applying finishing material. But if there are traces or layers of previous whitewash on the ceiling, then its surface must be carefully inspected and checked, since chalk, lime and water-based paint are a very unreliable basis for any ceiling finishing.
In order to determine whether it is worth whitewashing the ceiling without washing off the old whitewash, you need to determine the following:
If, after inspecting the ceiling and checking the strength of the existing coating, it was decided to apply whitewash over the old layer, then at the first stage it is necessary to completely clean the surface of all existing contaminants. Dust and cobwebs are removed from the ceiling using a wet cloth. Rust stains are also first wiped with a rag soaked in warm water, and then treated with a 10% solution of copper sulfate. Oily stains on the ceiling can be removed using a baking soda solution, which after removing the stain must be completely washed off with water.
If there are extensive traces of mold on the ceiling, and there is high humidity in the room, then it is better to completely wash off the previous layer of whitewash.
If the fungal contamination is insignificant, then it can be removed with a soap solution or a special antifungal agent, and after drying, treated with an antiseptic.
The final stage of preparing the ceiling surface for whitewashing is priming. It is necessary to ensure that the new layer of coating adheres to the old one as tightly as possible. Priming is carried out both on a clean surface after washing off the whitewash, and on old water-based paint or lime. It is best to use a roller to apply the primer, but a brush or sponge will also work. Before whitewashing, the primed ceiling surface must dry completely within 24 hours.
Whitewashing the ceiling is done using one of three materials: chalk, lime or water-based paint.
The main disadvantage of water-based paint compared to chalk and lime is its higher price and high consumption.
Once the type of whitewash has been chosen, you can begin applying it to the ceiling. In this case, the quality of the ceiling covering will depend not only on the selected material, but also on the tool used. If you have no experience in whitewashing, it is best to use a roller or brush. Using a spray gun or a vacuum cleaner with a special attachment allows you to whitewash the ceiling yourself much faster and make the coating more even, but it requires certain experience and skills.
When using a brush or roller, the first layer must be applied in even strokes perpendicular to the window, and the last layer in parallel, starting from one of the corners of the room. This technology will avoid the appearance of stripes and stains on the ceiling surface. In this case, each subsequent layer of whitewash is applied only after the previous one has completely dried.
The correct preparation of the solution is also important. When preparing whitewash from chalk or lime, it is recommended to add 50-100 grams to the solution glue mixture. This will increase the strength and service life of the ceiling covering. You can also add 20-25 grams of blue to the solution, which will give the whitewash a more saturated, bluish tint.
Water-based paint must be applied in a similar manner in several layers, allowing each layer to dry completely. In this case, for the first layer, a solution is made from paint mixed with water to a liquid consistency. Subsequent layers are applied using undiluted paint.
Decorating walls with certain materials has many features and nuances that should not be forgotten. This fully applies to such an option as whitewashing. The apparent external simplicity of the layer and its uniformity are deceptive - many mistakes can be made here.
Whitewashing walls has been known for a long time; one might even say that it has centuries-old history. This technique ensures the “breathing” of the wall, that is, gas exchange through it. The antiseptic properties of whitewash improve the sanitary condition of the home. All the work can be done with my own hands, hiring hired builders is not at all necessary.
Therefore, whitewashed surfaces are created quite economically if amateur builders know how to work correctly.
Along with the use of chalk, lime is also widely used. To cover walls, it is allowed to use only slaked lime, How to extinguish quicklime at home with your own hands:
To properly dilute lime, it is necessary to achieve 100% dissolution of the granules.
This can be recognized by the dense film remaining on the wooden spatula. white. It is recommended to dilute the mixture cold water without foreign impurities until a homogeneous, opaque liquid appears. In most cases, 1 kg of quicklime produces 10 liters of working solution. It is worth considering that these figures are only suitable for estimation; the final cost is determined in practice.
Another recipe is:
All this is mixed, diluted with warm water, and, if desired, painted with various pigments.
Quenching requires complete dissolution of lumps and granules in water. But to be on the safe side, before use, the liquid is mixed again and passed through metal mesh. If you plan to work with a spray gun, you need to filter the lime mixture through cheesecloth. Then even very small remaining inclusions will be removed. Adding laundry soap and wallpaper glue increases the service life of the solution.
Whitewash façade walls lime requires strengthening the protective properties of the reagent. The addition of drying oil helps to compensate for the harmful effects of precipitation and its erosion. There are special additives that prevent lime from falling off the walls.
An admixture of table salt (10% by weight of the solution) can reduce the stickiness of lime to various objects and simply to hands. But besides this finishing reagent, there are others.
Although lime has a long history behind it, that is not its only benefit. In any case, whitening should be done on a flat, prepared base. If it has already been whitened with another mixture, that backing needs to be removed, and only then can you begin to work. Lime protects much better than chalk from harmful bacteria.
In addition, it seems to tighten and closes minor defects on its own. Chalk should be used if you are known to be allergic to lime. If there is a difference in color (in the purity and saturation of the white tone), it is not noticeable to the naked eye. Lime is usually applied and then the occurrence of ugly stains will be eliminated.
The solution used to apply chalk whitewash is done as follows:
Before applying lime, you should slightly moisten the wall. Then the whitewash will be even and will not leave a single streak. Very important point is to determine what used to whitewash the walls, especially in newly acquired housing. When exposed to water, the lime will darken; By rubbing the area being tested with your finger, you will immediately see that it is not stained. Among the mandatory tools when working, it is worth mentioning rollers, brushes and vacuum cleaners.
Applying the mixture with a roller is easiest; leveling the surface is much easier. Experienced people should still pick up a brush or vacuum cleaner; such options are not suitable for beginners. Whitewashing must be applied with a roller in at least two layers, with the initial layer being pre-dried. If you have enough experience and knowledge, a vacuum cleaner or sprayer will help you get the job done very quickly.
Attention: not any model of vacuum cleaner is suitable, but only those that can drive air out and are equipped with a polyethylene cover with a set of tubes.
This lid is placed on the jar, after which the nozzle is connected to the outlet. The flowing air flow in the sprayer will suck in the prepared composition. Its removal through the tube will be accompanied by spraying over the surface.
Important: to control the incoming solution, an additional hole is needed, depending on the specific situation it opens or closes with your finger.
Uniform whitewashing is achieved through careful circular movements, in which the spray nozzle is held 0.8 - 1 m from the wall surface.
Allowed repetition this procedure if you want to achieve an ideal result. The application of lime or chalk whitewash requires the observance of certain precautions. So, you should definitely wear protective clothing, a gauze bandage, goggles and gloves.
To give whitewashed walls a more attractive look, water-based emulsion is used for painting. You should first make sure that the whitewash layer is strong, it is fairly even and has no cracks. Water-based paints are the best solution, because they are ideally combined with whitewash and do not require sophisticated surface preparation.
To apply all other paintwork materials, you will first have to remove the whitened layer, and apply the coloring composition only to the rough base. Painting using a roller can be done both vertically and horizontally. Decorative 3D plaster cannot be applied over a whitewashed layer; only surfaces made of natural or artificial stone or drywall. But this coating effectively copes with leveling the surface.
During repairs, the most different types whitewash, but contrary to the name they differ not only chemical composition- There can be a variety of colors. On 99% of the walls, however, such mixtures are applied in the usual white tone. Traditionally, only ultramarine was used, and then only to impart shade, and not for pronounced coloring.
It should be noted that it makes sense to add only dry, alkaline-resistant pigments to slaked lime. The only exception to this rule is universal liquid mixtures recommended specifically for this purpose.
The following dyes are added to completely prepared lime:
Important: do not add excessive amounts of pigment. If you introduce more than 5% of it in relation to the mass of lime, the coating will be too weak and will quickly lose its properties. useful qualities. Therefore, you will have to come to terms with the insufficient saturation of the created color. In fact, colored whitewash is always painted in weakened tones of the main colors. But no one can call it overly flashy in design.
Chalk can be tinted with almost any liquid or dry pigments. In the same way, they will have to be added to the composition prepared for use. Wet whitewash with a color additive looks darker than after drying; You can only find out the real tone from a test sample. The disadvantage of colored chalk is that it can only be used on interior walls in a dry room. But such finishing will inevitably stain your hands and clothes, and nothing can be done about it.
There are subtleties when applying whitewash to brick walls. This work should be approached as carefully as possible, otherwise removing the coating without dismantling the wall will be almost impossible. Brick absorbs any substances that are applied to it. The base is first cleared of any visually noticeable defects using a hard-bristled brush. If there is paint on the surface, it is removed with a solvent and then cleaned.
The fight against mold or plaque is carried out with specially designed solutions. After using them, the wall is washed clean water. The processing is duplicated after a certain period of time to ensure that the problem does not return. Detected cracks should be covered with cement, and it should be dried for at least 14 days. Premature whitewashing can result in the appearance of nests of mold or other fungus; It is advisable to prime the base.
It is not recommended to work at air temperatures below 25 degrees. Whitewash is applied from the top right, systematically moving down. The formation of incompletely covered areas and bumps is unacceptable. If a brick is whitewashed in several layers, each one must first dry completely. Salt leaks on a brick surface must be washed off and removed mechanically in advance. The tools for the job are the same as in other cases.
If you miss at least one of these points, already in the coming winter you may encounter the development of pathogenic organisms inside. Lime is best suited for whitewashing underground rooms, if only because it effectively suppresses harmful microbes. To it add 0.03 liters of iron or 0.1 liters of copper sulfate. You should not deviate from these proportions in order to maintain a fine line between ineffectiveness and toxic effect.
The use of bleach for preliminary disinfection should be done in the tightest possible clothing, be sure to wear gloves and respirators (you can even wear a gas mask). Directly decorative processing often carried out using lump lime (one part of which is diluted in three parts of water after thorough grinding).
Important: this composition should be mixed only after getting wet and dissolved. After all, extinguishing is accompanied by the release of heat and splashing of a caustic substance. In general, it’s better to stand at a distance and not look in that direction.
Brushes for work are soaked in water.
Large basements and cellars are finished using sprayers that allow the solution to be applied in a uniform layer. It is recommended to keep the spray nozzle approximately 0.3 m from the surface. In this case, the coating will be perfectly smooth and in just a few minutes. The surfaces to be finished should be cleaned of greasy deposits, oil products, glue and any other dirt. It is advisable to cover the rust with a primer if it is not possible to remove such traces.
Whitewashing is applied from top line walls to the bottom, while it is impossible, as in the open air, to leave at least one free place. Theoretically, one layer is enough, but by whitewashing the cellar or basement twice, you get the lightest and most accurate surface. After finishing, wait about 48 hours, this is enough for everything to dry thoroughly. If you have time reserve and good weather outside, you can open the dungeon for 6-8 days in a row.
Modern whitewashing techniques allow you to confidently decorate not only external walls and underground parts in the house. There are a number of advantages to this method of decorating your own bedroom, kitchen, hallway or guest room. This is cost savings, ease, and accuracy. A whitewashed wall is 100% environmentally and sanitary safe. No wonder even against the backdrop of more modern methods This design is actively used in educational and medical institutions.
Preparation begins by removing furniture and appliances as much as possible. Anything that cannot be moved or has nowhere to move is thoroughly covered with polyethylene or unnecessary material and wrapped with tape. Before whitewashing, cracks up to 10 mm are puttied, and for more serious (10-50 mm) deformations, plaster must be used. If the problems are even larger, you should first repair the wall, and only then take on it decorative finishing. All preparatory compositions leveled either with a spatula or (if the surface imperfections are large) using building rules.
Sometimes you need to quickly remove old or poorly applied fresh whitewash. The simplest means for removing such coating are a roller and a spatula. Attention: this work initially implies major renovation, invariably there is a lot of dirt and debris. In addition to protecting the furniture, care is also taken to cover the floor with newspapers. The surface is soaked with a sponge and the lagging layer is removed with a spatula.
A faster, but at the same time very noisy and dusty method is to use grinding machine. If you need to remove whitewash from high parts of the wall, you need to ensure reliable support. When using a grinding machine, it is worth spraying the surface with a spray bottle in advance. Very durable coatings cleaned using an aqueous solution of laundry soap and baking soda.
An alternative to these solutions is the use of paste.
In the next video you will find yourself whitewashing a cellar with your own hands.
There are a huge number of ceiling finishing options, but the most affordable and simplest is whitewashing. If you have a limited budget for renovations, this solution will be the most optimal, and a clean and smooth surface will in any case give the room a neat, well-groomed appearance. In addition, whitewashing the ceiling with your own hands will not take much time and will not require much effort.
You cannot whitewash a ceiling using an old coating: when wet, the previous layers of whitewash will begin to peel off and stick to the brush, making the process difficult. In addition, the surface will not be perfectly smooth, which is completely undesirable. When cleaning the ceiling, you must take everything out of the room or cover it with polyethylene, otherwise you will have to wash everything from lime and.
For cleaning you will need:
If you clean a dry ceiling, a lot of dust will rise, and the process itself will take a long time; It is much faster and more convenient to remove the whitewash after moistening. You should not immediately wet the entire area, since the surface dries out very quickly; it is better to divide the ceiling into small areas and hydrate as you go.
After wetting the whitewash, you need to wait a few minutes until the layers are saturated with water to the base, then the coating can be very easily removed with a spatula. Finally, the remaining chalk or lime is wiped clean. damp cloth until there are no traces left.
For further training Additionally you will need:
Between ceilings always remain, which gradually diverge over time. To prevent them from appearing on the ceiling, they are embroidered, filled with putty mixture, and covered with sickle tape on top. Putty is again applied over the serpyanka and thoroughly rubbed with a spatula, making the surface even.
While the joints are drying, the ceiling is carefully inspected and defects are eliminated. Small cracks are simply rubbed with mortar, gouges and chips
Very often stains appear on the ceiling that show through the finish. It can be quite difficult to remove them, but this must be done at the preparation stage, otherwise after a while they will again be visible through the whitewash layer. Stains from water leaks are removed using bleach or bleach: dip a sponge in the liquid and press it onto the stain until it lightens. Of course, you need to wear rubber gloves to protect your skin.
To remove rust stains you will need copper sulfate. Prepare a saturated solution of bright blue color, spread the stain well, let it dry and repeat everything again. If necessary, re-process until the marks fade. After this, the problem areas are well primed and dried.
When all noticeable defects have been removed, a level is applied to the ceiling surface. different places to determine the magnitude of the differences in height. If there are recessed areas, they are puttied separately, and when the solution dries, the entire area is covered with putty. Usually used finishing putty, which is applied in 2 layers 1-2 mm thick.
To work, take two spatulas - a narrow and a wide one; when applying, hold the spatula at a slight angle to the ceiling. The resulting sagging or streaks are removed after the mixture has dried. sandpaper. It is necessary to sand the entire treated area to give the surface maximum smoothness. Finally, the ceiling is wiped with a dry cloth to remove dust and primed.
Mixtures for leveling walls and ceilings
For whitewashing, chalk, slaked lime and water-based paint are used. Each option has its own advantages, so to decide, you need to learn about the basic properties of these materials.
The chalk solution is easy to apply, has good covering power, and is almost odorless. Chalk - very cheap material, and therefore whitewashing will cost pennies. But at the same time, the chalk gets very dirty, preparing the solution takes time, and the surface may acquire a yellowish tint. To prevent this from happening, blue is added to the solution.
Lime has bactericidal properties, covers small cracks well, lasts a long time, and has a low cost. Disadvantages include sharp bad smell, which appears when the solution is diluted and the material is caustic. When whitening with lime, you must wear gloves, otherwise it will corrode the skin on your hands.
Paint on water based– this is the best option. Its cost is higher than that of chalk or lime, but its covering capacity is much greater. It does not smell, is easy to apply, is sold ready for application, and the painted surface does not get dirty. There is a washable paint that is especially suitable for wet areas.
Whitewash for the ceiling
For whitewashing you will need:
To dilute chalk, you will need water, preferably warm, PVA glue and blue. First, glue is diluted in water, and then in small portions add chalk. Stir the solution well, break up all the lumps, and pour in the blue. Mix everything again until the color is uniform. On 10 square meters you will need 3 kg of sifted chalk, 30 g of glue and 20 g of blue.
Less lime will be required for the same ceiling area: you need to dilute 1.7 kg of lime in water and add 40g of blue. First take a little water, about 5-6 liters, and then add little by little, depending on the required concentration of the solution. if necessary, also dilute, adding only clean water. If you want to give the ceiling a colored tint, you can use special pigments.
They begin to whitewash in the corner from the window; First, the joints of the ceiling and walls are carefully treated with a brush, and then whitewash is applied to the surface itself with a roller. Do not dip the roller into the paint too much to avoid splashing and drips; the layer should be thin and even. Whitening should be done in parallel movements perpendicular to the direction of light. Having finished applying the first layer, the surface is left to dry completely.
The base can be visible through the first layer, and stripes from a brush or roller are also clearly visible. A second layer of whitewash, which is applied perpendicular to the first, will help remove these defects. The solution must be mixed, because lime, chalk and paint could settle to the bottom. After this, they begin to whiten from the same place as the first time. The movements should be as uniform and confident as possible, then the quality of the whitewash will be high. To ensure that there are no unpainted areas left, when applying the composition, the ceiling is visually divided into strips and overlaps 4-5 cm wide are made at the joints.
After completion of the work, it is necessary to exclude the occurrence of drafts and lighting of the ceiling sunlight, otherwise the coating may crumble. Also, you should not create dust in the room while the whitewash is drying; All paint stains on the floor and walls should be wiped off immediately with a damp cloth, and swept only later so that dust does not settle on the surface. Subject to these simple rules re-finishing will be required no earlier than in 3-4 years.
A whitewashed ceiling is not some outdated technology, but one of the classic ways to decorate a ceiling. At the same time, you can do everything yourself and quite quickly. So that the repair does not take too long, and you do not have to be distracted by correcting defects, you need to prepare the tools and the ceiling in the room itself.
It all starts with preparing the instrument. Preparation consists of choosing the tools with which you will whitewash the ceiling.
Work can be performed:
It all starts with choosing a brush for whitewashing - what tool you use will determine the quality of the work. There are different types of brushes, but the best option is a brush made of natural bristles, width – 15-20 cm. Before using the brush, soak it in water for several hours. This will swell the wooden handle of the brush and secure the bristles.
This is important because the bristles should not remain on the whitewashed ceiling surface.
They also use rollers, and the quality will be better and the process will go faster. When using a roller, do not forget about the special tray.
You can whitewash using lime or chalk - these are the most popular do-it-yourself whitewashing methods.
To dilute chalk whitewash you need:
It is not necessary to use PVA glue; it would be correct to use both wood glue and bustilate.
Lime whitewashing is done like this: dilute 1.7 kilos of lime with 40 g of blue and water. The result is a ready-made mixture that can be applied to 10 squares of ceiling or walls.
If you decide to whiten with a brush, then the strokes are first applied perpendicular to the light source - that is, the windows. And the final layer is applied parallel to the windows. In this case, the bleached surfaces are monochromatic, without stripes.
Whitening the ceiling with a roller is even easier. The technology is as follows: pour the solution into the ditch, dip a roller into the solution, roll the roller along the slope of the pan. First the strokes go towards the windows, then parallel to the windows. The overlaps should be approximately 5 cm. Otherwise, unpainted areas will remain, and it will seem that the ceiling is either unpainted or painted different colors.
It is wiser to use a brush at the joints of walls and ceilings.
You can only renew the whitewash if the old layer is very thin and durable. But even in this case, experts still advise removing the old whitewash. This will ensure good result– free of streaks and other defects such as bubbles and streaks.
The old coating can be removed with a sponge, soap solution and paste. The chalk solution is removed very easily, so applying new whitewash without washing off the old one is stupid. But with lime composition you'll have to tinker. Without wide spatula not enough.
Of course, if the ceiling has defects, you will have to repair the cracks.
Definitely yes! Moreover, whitewashing with putty is Painting works in complex. Putty "Shpakril" is both for sealing small defects and for gluing the ceiling. With this related functionality of the composition you save on materials.
Simply dilute this putty with water, approximately half a liter per kilo of material, and directly whiten the ceiling.
You can do this:
By the way, at least it’s easier to work with a roller, but usually a ceiling painted with water-based emulsion is the merit of the roller. New methods are also emerging, usually involving paint guns and spray guns.
Today, ceilings are whitewashed in the kitchen, bathroom, hallway and toilet, and utility rooms. The method of decorating the ceiling is quite quick and cheap, so you shouldn’t dismiss it as outdated. This classic way, so he will still be in demand for a long time.
Good luck with the renovation!
Of all the existing options for finishing the ceiling surface, the most popular is whitewashing. This is explained by its widespread use due to the affordable cost of carrying out the work and obtaining a good result.
Typically, new whitewash for walls and ceilings is applied after the surface has been thoroughly cleaned of the previous lime and chalk. A new layer of paint can be placed directly on top of the old one. But you need to know how to do it correctly so that the end result is beautiful. It will not take much time to put the ceiling in order, and such work can be done with your own hands.
First of all, you need to decide how to whitewash the ceiling in your apartment by choosing one of the options. Each of them has advantages and disadvantages.
It could be:
As for such a material for whitewashing the ceiling as chalk, it will give the repaired surface a radiant whiteness. Despite the fact that the premises will have good view, additional dust will appear in it. This is explained by the fact that the chalk will gradually begin to crumble. Also this material It is not waterproof, so it is not suitable for repairing the ceiling in the bathroom.
Whitewashing using lime is an excellent way to combat fungus. In the rooms where it appeared, this should be used. In addition, lime on the ceiling is resistant to high humidity. You can paint it ceiling surface in any room, including the bathroom. Lime whitewash successfully hides minor defects such as cracks and cracks.
Before whitening the ceiling with lime, you should take into account the fact that this material can cause an allergic reaction. Also, the surface is not perfectly snow-white, unlike a chalk-based composition.
The ceiling after applying water-based paint has an excellent appearance, it adheres well to the previous coating. The composition adheres to old whitewash and does not begin to peel off over time. This paint has the only drawback - when using it, repairs can be carried out at temperatures from +5°C. But when painting the ceiling is done indoors, this circumstance does not matter.
If you do not want to wash off the previous layer from the surface, then you should know that whitewashing the ceiling using old whitewash has a number of nuances. The fact is that chalk cannot be applied to lime, and vice versa, otherwise the new layer of finishing will not fit well, resulting in dirty stains appearing on the ceiling surface.
It is permissible to apply the same layer or water-based paint on top of the chalk solution. If the old whitewash on the ceiling was lime-based, it can only be covered with the same material or an emulsion coloring composition. In addition, you need to take into account that enamels or oil paints are not applied to the old chalk or lime layer.
Before you whitewash the ceilings yourself, prepare necessary tools- such work is performed in one of three ways, for which they use:
If painting is carried out with a roller, then the coloring composition will lie in an even layer, without forming spots or streaks. To get a good result, whitewash is applied in two layers. You will need to have not only a roller, but also a container for the solution, a mixing tool, a paint tray and a small brush for applying paint where the ceiling meets the wall.
A brush for whitewashing can be purchased at any building materials store. affordable price. When using it, the composition splashes, so you should protect the furnishings in the room from it and use special eye glasses.
The use of a sprayer allows you to lay the whitewash in an even, neat layer. Using a spray gun to whitewash the ceiling, you will reduce the time it takes to complete the work. When using paint, make sure it is free of lumps. Its consistency should be more liquid compared to whitewash, which is applied with a roller or brush.
If, when deciding on the best option to whiten the ceiling, you decide to use this type of paint, then you need to take into account that there are many varieties of them, they differ in composition and properties:
To decide which whitewash is best for the ceiling, before purchasing water-based paint, you need to carefully read the label, which indicates the purpose of the composition, consumption per “square” of area and other important information.
Correctly selected composition allows you to create long-lasting snow-white ceiling covering- it will not turn yellow over time and will be reliably protected from the appearance of fungus.
Before whitening ceilings by applying a water-based emulsion over lime, the previous layer should first be coated with an acrylic primer. Then it doesn’t hurt to make sure the surface is durable; to do this, you can try to scratch it.
Paint is applied only when the ceiling is not crumbling. When painting over chalk, there is no need to do any preparation. The water-based composition will adhere to the ceiling without the use of a primer.
Before starting renovations, you should prepare the room. Objects in it are carefully covered with film or taken out of the room to protect them from paint.
More convenient and simple process painting is to use a roller, for which proceed as follows:
Spray paint is much easier to apply. It is necessary to apply three layers, and you do not need to follow the direction of painting. The main thing is not to miss a single centimeter of the ceiling surface.
Before you make a ceiling with whitewash, you should prepare a chalk solution, for which 10 liters will require 50 grams of wood glue and 5 kilograms of chalk. Its consistency should be such that the composition does not drain from the knife. If this is not the case, add chalk. You can add blue to the mixture to make the surface snow-white, without yellowness.
The technology for repairing a ceiling with chalk is no different from the process of applying water-based paint. First, choose a repair tool - a brush, roller or sprayer. The composition should lie in an even layer.
Quite popular today is adhesive whitewashing of the ceiling, which contains glue; it is much easier to apply and holds more firmly. If a surface covered with simple chalk can stain your hands upon contact, then glue painting there are no such shortcomings. In addition, this whitewash can be given any color shade.
For the preparation of lime mortar To paint the ceiling surface, take 2.5 kilograms of lime, add 100 grams of salt, pre-soaked in water, and also a little blue. All components are mixed, and water is poured in so that the resulting volume of the mixture is approximately 10 liters.
The rules for how to whitewash a ceiling with lime are similar to the recommendations for how to apply water-based paint and chalk mortar.
When repairing the ceiling surface, you should take into account the purpose of the room. For example, if this is a bathroom, it requires the use of a special composition that is resistant to high humidity and can protect the ceiling from fungus. Otherwise, the paint will lose its attractive appearance within a short time and, most likely, will begin to crumble.
When performing painting work, it is necessary to remember safety, since the whitewash must not come into contact with the respiratory system, eyes or skin. To do this, use a respirator, rubber gloves and special glasses. The fact is that the coloring composition can cause serious allergic reactions and sometimes chemical burns.
Despite the fact that there is a technology for how to whiten a ceiling with your own hands without washing off the previous layer, to obtain a high-quality result you need to clean the surface and be sure to level it.
You should definitely wash off the previously applied whitewash that does not adhere well to the ceiling. If it is not removed, decent result can't be counted on. When the chalk or lime layer is smooth, thin and firmly in place, painting can be done over it.
If you still need to prepare the ceiling for whitewashing, proceed as follows to remove the chalk:
As for the lime layer, it is much more difficult to remove:
It is better to work in sections: while the soaked lime is removed from one of them, the surface of the other absorbs moisture. As a result, you can prepare the ceiling faster. Also, special means are used to wash off the previous whitewash.
Building materials stores sell a remover that is applied by spray. After it dries, a crust forms on the ceiling; it must be removed with a scraper. Finally, wash the surface with a rag.
There is another option for deleting the old layer. Vinegar is added to the water in the amount of one tablespoon per 5 liters and 50 milliliters of bath foam. The components are thoroughly mixed and applied to the ceiling. After 20 minutes, it is cleaned with a scraper and wiped with a wet cloth.
There is another way to clean old whitewash. You need to mix water and flour. The resulting paste is applied to the surface and allowed to dry, after which removing the old layer is not difficult.
If you do not have enough skills and knowledge on how to properly whiten ceilings, you can use the services of professionals. This solution has many advantages. It allows you not only to save time, but also to get excellent result. A professional will use a minimum amount of paint to whitewash the ceiling, so the repair will not cost much more than painting it yourself. The main thing you should pay attention to is the skill of those who are to be hired.
It must be remembered that whitewashing old paint is inexpensive and in a simple way transform the interior of the room into better side. It should not always be used and only when the previous layer is even and holds up perfectly. In this case, water-based paint, lime, and chalk applied directly to the old base will adhere reliably.
Whitewashing is not difficult. You need to turn to experts for help and hire professionals in order to save time if the owner of the premises is a busy person and does not have the opportunity to carry out repairs.
