What paint to choose for the facade on plaster. Facade paints for plaster - instructions for correct application. Performance properties of facade paint

works must have good elasticity. The notorious change in the size (expansion and contraction) of the facade surfaces, which occurs as a result of a sharp temperature drop, is “to blame” for everything.
Facade paint should be highly resistant to ultraviolet light, that is, the ability to retain its original color unchanged for a long time under the influence of direct sunlight.
The paint must be highly abrasion resistant. After all, the facade of the building, among other things, includes areas near doors, windows and sidewalks, which are quite easy to get dirty and even wiped off as a result of constant touching.

In addition to the above-mentioned qualities, another property is characteristic of facade paint: dullness. The fact is that on a glossy surface, all the irregularities become more noticeable. At the same time, the matte surface is characterized by the ability to "hide" minor flaws: depressions, protrusions, chips.

Typology of facade paints

The modern market offers the consumer the following types of facade paints:

Silicate;
Limestone;
Cement;
Acrylic;
Silicone.

Let's consider each type in more detail.

Silicate facade paints

Silicate facade paints are based on silicate glue (sometimes called "liquid glass"). The composition of the paints also includes a special filler (usually also silicate) and various mineral pigments. Such a composition provides good resistance to ultraviolet radiation, wind and precipitation for a long time. The service life of such a coating is about 20 years. In addition to the advantages mentioned above, silicate paints have another important quality: good vapor permeability. Thanks to her, the painted walls practically do not damp.

Among the disadvantages of silicate paints, we note the weak abrasion resistance and low elasticity, which sooner or later lead to cracks.

Lime paints

Slaked lime is used as a base for this type of paint. Merits these paints have a little. The most important among them is the relatively low price. Due to its good bactericidal properties, lime paints guarantee the absence of fungal deposits even on the dampest wall. However, due to good vapor permeability, walls covered with a layer of lime paint will not get damp.

Disadvantages lime paints have much more: such paints quickly get dirty, easily deteriorate under the influence of precipitation, and their color range, in fact, is limited only to white and light pastel tones.

Cement paints

Cement paints are a somewhat modernized version of lime paints: not slaked lime is taken as a basis for their manufacture, but Portland cement with the addition of various pigments. This paint makes the facade slightly more resistant to damp climate and rainfall. But unlike lime paints, cement paints cannot boast of a bactericidal effect.

Today cement paints are used very rarely, despite their low cost.

Acrylic paints

Acrylic facade paints can be called the most popular product in their segment today. Acrylic resins are used as the basis for this type of facade paints.

The reason for their popularity is their relatively low cost and a large number of advantages. The only characteristic by which acrylic paints are inferior to paints made on a silicate base is low vapor permeability, which can lead to excessive moisture formation. However, this disadvantage is compensated for due to the practically zero hygroscopicity and aversion to abrasion.

Most acrylic paints are water-based, but there is also a certain group of acrylic paints based on various organic solvents. The latter are recommended for use as a coating for very worn out facades, on which the plaster does not hold firmly.

Silicone paints

Silicone-based facade paints can be safely called the best option among all these. Silicone facade paints are characterized by the following virtues:

The paint applied to the plastered facade of the building makes it completely hydrophobic. The walls literally repel moisture from themselves: both rain and fog simply flow down the walls, leaving no wet traces on the surface of the facade.
The walls covered with silicone paint breathe. The fact is that the vapor permeability of the paint is provided due to the abundance of the smallest pores in the paint layer.
Excellent adhesion to all types of walls, including all types of plastered surfaces.
Very serious resistance to ultraviolet radiation, any aggressive natural phenomena, sharp and frequent temperature changes.
The facade, painted with silicone paint, is practically not electrified, and, therefore, does not attract dust.

Among disadvantages - high price and somewhat more modest indicators of wear resistance and elasticity than acrylic paints.

How to calculate paint consumption

Let us take the liberty to cite some algorithm with which it seems possible to make a more or less accurate calculation of the consumption of facade paint per 1 square meter of the painted surface.

Calculation of the total area of \u200b\u200bthe facade to be painted. This is easy enough. The first step is to measure the length of the wall and its height. These indicators should be multiplied by each other - we get the total wall area. The next step is to measure the total area of \u200b\u200ball windows and doors located on a given wall. The total area of \u200b\u200ball openings is subtracted from the total wall area. The calculation of the area of \u200b\u200bfacades of complex geometric shapes is carried out as follows. The facade is "divided" into simple rectangles. We calculate the area of \u200b\u200beach of them. Then we add up the results.
Multiplying the area of \u200b\u200bthe facade by the average paint consumption per 1 sq. meter. You can find this indicator on the packaging with paint - any manufacturer must indicate it on its product. The indicator obtained as a result of the calculation is multiplied by the estimated number of paint coats (by 2, 3, etc.).

When calculating the amount of paint, 2 important nuances should be taken into account. The first one concerns the density of the paint. Consider the following: the thinner the paint, the thinner the applied layers are, and, therefore, the paint is distributed more evenly and efficiently, allowing you to save money. The second nuance concerns the high-quality preparation of the wall before painting. Keep in mind that the approximate material consumption that can be found on the paint container is based on the assumption that the paint will be applied to the primed wall. If you plan to paint the walls directly on the plaster, the paint consumption will be significantly higher.

Facade painting instructions

Is there a step-by-step instruction for painting the facade? Let's try to consistently answer this question.

Preparation of surfaces before painting

In the event that the plastered facade has already been painted, the preparation of the walls before the new painting directly depends on the condition of the old paint and its type. For example, it is quite possible to use water-based acrylic paint on old paint of the same type. Moreover, if the color of the new paint is similar to the color of the old one, the wall does not even have to be primed. If the wall is covered with a layer of oil enamel, it is preferable to clean off all the old paint before applying a new one.

The condition of the plaster should be assessed. The surface can be considered ready for painting if the plaster:

does not pour;
leaves no marks on the palm;
does not get dirty when touched;

If the wall or part of it does not meet these requirements, you need to resort to putty.

The facade should be primed with a deep penetrating primer... This will give the surface greater strength and significantly improve the adhesive properties of the paint.

The paint for the plastered facade is selected based on a variety of characteristics. It must ennoble the building, not be afraid of the effects of aggressive environmental factors, have excellent adhesion and UV resistance.

General information

Home paint is classified according to several characteristics:

type of binder;
color;
manufacturer.

By the type of binder, the paint and varnish composition for the home can be:

solvent based;
water based.

Water-thinnable home paint is classified into:

acrylate;
acrylic;
silicone.

Characteristics of types of paint for plastered facades

Various types of paints are suitable for plastered facades. All of them consist of pigment additives, a film layer, a solvent base. Manufacturers introduce into their products a complex of various additives that increase the performance of the material. The types of paints differ mainly in the composition of the binder.

Acrylic paints

Acrylic paint is widespread and widely used for finishing work. Acrylic polymers act as a bonding element, creating an elastic layer. Due to the ease of tinting, the material can be given absolutely any shade. The paint is environmentally friendly, microbiological colonies do not take root on it.

Acrylic compositions on an organic basis and water-dispersion are distinguished. The organic-based substance is suitable for application to the surface of the house in winter. Water-dispersion mixtures do not have an unpleasant odor and create powerful protection for the facade.

Silicone paints

Silicone paints are also applied to the facade, combining a lot of advantages. Water-based solutions, consisting of silicone resins, form a waterproof film on the wall. The paint has good adhesion to any surface. The solidified layer repels water and has good vapor permeability.

Painting with silicone mixture is capable of repairing 2 mm cracks on. Resins are thermoplastic and are easy to use - they lie flat and do not pose a risk to hands.

Perchlorovinyl facade paint

For the plastered house, PVC paints are used, which allow working in the cold season. The formulations have good mechanical, anti-corrosion and water-repellent properties. Of the shortcomings, the presence of volatile flammable components of toxic action is distinguished.

Painted plaster lasts up to four years. The paint and varnish mixture is non-plastic and cracks when the facade is deformed.

Silicate paints

Painting with silicate paints does not give a bright tint, but provides deep penetration into the surface of the walls. Water vapor permeability does not suffer from this. The use of the presented composition requires careful preparation of the facade and the utmost care during application. There is no wide range of color solutions.

How to choose facade paint (video)

Preparing the facade for painting

Home preparation is simple in technique. The previously painted facade will have to be cleaned of the layers of previous paints. The plaster finish, which has not been previously painted, will have the greatest strength.

Removal of old paint is carried out with a hydro-sandblasting unit. After dry cleaning of the walls, the dust is blown with compressed air, and after wet processing, it is washed off with water. Long-term retention of color on the surface of the building gives a smooth texture, therefore, a rough paint film is unacceptable for wall decoration. After cleaning the house from nabels, the preparation consists in repairing the plaster with the help of special solutions prepared on the basis of fine-grained sand.

If there are places with a rough texture on the surface of the walls, they are treated with putty, and then the entire building is patched once so that there are no separate spotty places. A putty is being prepared according to the composition of the paint.

Before you paint the structure, you need to check the strength of the plaster by tapping it. Weak points are repulsed, and the cracks are filled with mortar.

Before the painting is carried out, if there are spots from salts, they are hydrophobized with organosilicon compounds. After finishing work, paste, silicate and lime mixtures are used. Hydrophobic solutions are applied to the plastered surface 24 hours after the plastering. Treatment with organosilicon compounds is carried out by hand spray guns or spray guns.

Painting technology on a plastered surface

After the preparation has been completed, painting begins. The technology for applying different types of paints and varnishes is approximately the same.

Paint consumption varies and depends on the type of product chosen:

water-based mixtures - about 270 grams per m²;
acrylic or oil compounds - 150 grams per m².

You can find out how much material is required for painting on the packaging, the manufacturer usually indicates this information.

Important! When painting in several layers, the consumption of material increases. Preparation for work involves the selection of the necessary tools. In addition to paint, you will need a spray gun, a medium-bristled roller, and a wide brush. When painting large areas, it is recommended to use scaffolding and special equipment. There are some important tips for painting.

The paint is mixed with a mixer.
The strokes on the wall are made evenly, it is desirable to combine diagonal, vertical and horizontal movements to achieve a uniform surface.
Painting is carried out in at least two layers. The lime mixture is applied in three layers - each layer after the previous one has dried.
Long pauses in work should be avoided: if one part of the building has already dried up, and paint has just begun on the other, the joint will be noticeable in the future.
During painting, the walls are sheltered from dust and precipitation until they dry completely.

The application of paint to plaster is carried out by many consumers. It is noted that the decorative surface usually has a pronounced relief, therefore, the higher the surface relief, the greater the paint consumption.
You can start painting work only after completion of preparation. If the surface of the walls has smooth and convex areas, you need to start painting with those that protrude.
Painting on a plastered surface has several features. It is necessary to choose the right paint, prepare the walls and correctly apply the mixture to them. This is the only way to achieve the desired result.

Rules for applying facade paint (video)

In practice, it turns out that there is nothing difficult in painting a plastered surface, if you act strictly according to the rules.

Plaster is an integral part of any facade, and it still remains in construction. However, for all its functional qualities, it looks rather unsightly outwardly, remaining a gray and ugly mass. And to correct this defect will help painting the facades on plaster, which will immediately give the whole building a bright and interesting appearance.

All about paints

Interestingly, speaking of facade painting materials, it is possible to emphasize not only the color change that they carry for the exterior, but also positive practical points for the walls of any structure.

After all, high-quality paint for facade plastering allows you to preserve and increase all the positive aspects of the plaster layer, and these include:

Strengthening the moisture resistance of the walls, which always has a positive effect on the duration of the structure's operation.
Hygroscopicity. The material does not close the pores of the base of the walls of the house, therefore, steam removal from the premises to the outside functions normally.
The paint coat adds extra durability to the finish and is weather resistant.
Enhances the tolerance of the finish to temperature changes, increasing the frost resistance indicators.

Counteracting the spread of fungi and microorganisms on the facade surface.

Important! The colors of the facade paint on plaster, thanks to a special color scheme, do not fade in sunlight, and the exterior design will be presented in bright colors for a long time.

Types

All main types of facade paint can be roughly divided into three types:

Silicone.
Acrylic.
Silicate.

Moreover, each type has its own distinctive advantages.

So, for example, in acrylic and silicone paints, it can be noted:

The almost complete absence of pungent odors, because the material is simply based on water.
Painting can be carried out in already functioning premises, and not only at the end of construction and finishing works.
The lifespan of acrylic paint for outdoor use is about 10 years, and silicone paint is 2.5 times longer.

Important! The silicate paint is based on liquid glass, therefore it is recommended to work with it with greater care. But the silicate base of the material does an excellent job with the appearance of small cracks on the walls.

From the point of view of appearance, after application, the facade paint Bark beetle on plaster looks interesting. It is obtained in the form of eaten bark of a tree, from which its name comes, and in practice, there is simply a small grain in the paint and varnish material, which is responsible for the effect of the bark beetle.

Application

Naturally, the instruction for painting external walls always presupposes the complete completion of the main construction and installation work at the facility. That is, the roof should already be installed, windows and doors installed, slopes and window sills made, all the necessary communications carried out.

There are also requirements for weather conditions and they must be met:

The air temperature should be stably positive.
The average daily temperature at the time of work should not be lower than 10 C.
Do not apply paint during or after rain.
The wall surface must be completely dry.
It is not recommended to apply paint in hot weather, especially in direct sunlight.

Training

Preparation can begin by calculating the required amount of material. It is necessary to understand that increasing the consumption of facade paint on plaster can only be "hindered" by respect for the material and the correct calculation of the area.

On average, 1m2 of plaster can take up to 300 grams of paint, respectively, 1 liter is enough for an average of 3-5 square meters. An important clarification must be made here at once, we are talking about the consumption when applying one layer! Accordingly, with the second or third layer, the flow rate will increase.

Naturally, paint is always purchased with a margin. The price of the entire facade increases from this, but the moment of getting into the color is important here, because if the paint ends at the wrong time, then it will be quite difficult to get into the color and it will be too clearly noticeable on the facade.

After calculating the estimate, you can start preparing the surface. For this, the plaster is cleaned of dirt and dust. If there are oil stains on the walls, they must be removed without fail. Over time, oil will necessarily penetrate any finish.

If there are obvious defects, they can be corrected with your own hands with cement mortars or glue, after all, the paint will not hide everything.

Once all primers are dry, which is a few hours, paint can be applied.

Paint application

The technology of painting the facade on plaster involves three options for applying material to the surface of the walls:

A simple brush. The method is suitable for a small area, plus the presence of forests is necessary if we are talking about a private two-story house.
Roller. The most common method.
Spray gun. With this method, paint is simply sprayed in a thin layer over the surface.

This is not to say that there is a best or most suitable technique, each method has its own advantages.

In terms of coloring rules, the following can be noted:

All material is recommended to be applied at one time and without long interruptions.
Painting goes from top to bottom to eliminate drips and drips on the finished surface.
Paint application The bark beetle is carried out, and the grains in the material are responsible for the "eaten bark" effect.

Output

Everything is good in facade paint, from practical use to appearance. The incredible ease of application () is also a huge plus.

All the positive qualities of the material will be shown in the video in this article, and together with the qualities it will be possible to "peep" behind the practical use of paint.

Any building facade needs not only decorative cladding, but also protection from mechanical, atmospheric and climatic influences. Facade paint can give a house a unique look, set a single style for the entire yard and at the same time protect the base from various biological formations, as well as changes in temperature, humidity, and sunlight. There are many varieties, but each has individual characteristics and operational parameters. What will help in choosing? Study of the main types and TOP paints for facade works.

Name	Price, l / rub.	Brief characteristics
		It is used for facades and plinths. Can be painted down to -20 ° C. Dries quickly.
		Acrylic weatherproof. No smell. Can be applied internally and externally. Suitable for all surfaces.
		Alkyd enamel for wood and metal. Gives a dense coverage already from 1 layer.
		New tree protection system. Retains color for 10 years. Prevents mold and blue from developing. Suitable even for plinths.
		Water-dispersive, for exterior work on durable cement-lime plaster, concrete, putty, and other mineral coatings.
		Eliminates minor defects. Good covering ability. Dries for a long time. Use at least + 20 ° C.
		Super white textured plaster. 1.5 kg / m² for a single application. It dries for a long time, but the layer is very dense.
		Frost resistant acrylic. Consumption 0.2-0.3 kg / sq.m. On average it is designed for 7 years.
		Forms a glossy transparent coating resistant to temperature changes from minus 12 ° C to 60 ° C.

Features and types

Facade paint differs from the traditional one in increased wear resistance, as well as resistance to temperature extremes, frost, humid or too dry environment. In addition, the composition of such products includes many protective components against the formation of mold, fungus and other biological growths. In this way, the front part of the building will retain its operational properties and attractive appearance for a long time.

The material is found on the market in four interpretations based on the following components:

lime - it is used, as a rule, to carry out restoration work when painting of architectural structures with limestone cladding is required;
acrylic - acrylic facade paint is applied on a cement-limestone base in the form of plaster on a concrete base or brickwork;
silicone - silicone paint is intended for facing silicate bricks or bases previously treated with organic dyes;
drying oil - oily components are used for painting wood materials, they are able to protect the base from destructive atmospheric and climatic influences.

Separately, it should be noted that silicone facade paint and acrylic paint can be tinted in any desired color, which is very convenient when creating a single landscape design. To make the right choice in favor of quality products, use the ratings of dyes, compiled on the basis of real feedback from consumers and experts from the construction industry.

High-quality facade paint should have an ultraviolet filter, maintain an integral structure during temperature changes and not chip at the edges. On average, the shelf life of the coating is 5-7 years, after which it is necessary to re-cover the base.

Luxens

This is a fairly budget option that is sold in Leroy Merlin. A container weighing 14 kg and a volume of 10 liters costs about 1350 rubles. The product is made from environmentally friendly components and does not lend itself to change in structure under various climatic influences. Used for outside wall cladding.

Creates a smooth, even coating. The second layer can be applied after the first one after 1-2 hours, but it takes 2-4 hours to completely dry. The product is applied with a roller or brush. Consumption varies within 10 m2 / l.

dries very quickly - tack-free within an hour, completely - 4 hours;
you can paint even in frost (not lower than -20 ° C), it lays down in an even layer.

very pungent unpleasant odor;
the aroma does not disappear for a long time - even with outdoor work it is very clear.

Expert

Facade paint Expert creates a uniform layer with a matte surface. White dye can be applied both outside and inside. Recommended for painting the following substrates such as concrete, brick, chipboard or fiberboard, plaster.

Differs in the absence of a pungent odor. It is applied on a well-dried and cleaned surface. The price for 3 kg is 200 rubles.

for all types of surfaces - plastered walls made of concrete, cement, bricks, asbestos-cement and gypsum plasterboards, chipboard, fiberboard, plywood, etc.;
strong and durable frost-resistant "breathable" coating;
ideal for kitchens and dining rooms.

after 3-4 begins to flake off;
if the defects of the base surface are not eliminated, it will dry for a long time and with spots.

Although wood is a popular building material, it requires a certain amount of personal care. If it is chosen for finishing the facade or the walls are entirely made of beams, it is recommended to cover them with facade paint. The main task of paintwork is to protect against fungi and mold, excess moisture, at the same time, it is necessary that the decorative function be fulfilled.

Tex PF-115

Teks facade paint is used for cladding wood, plasterboard, fiberboard, as well as chipboards. The product fits perfectly on any surface, while creating excellent adhesion. The result is a smooth, glossy finish.

Tex PF-115

The advantages of the material are in the following aspects:

moisture resistance;
good adhesion to the base;
weather resistance;
ease of use;
resistance to moisture.

The paint and varnish product is packaged in a container with a volume of 900 ml. The price of alkyd products in Leroy Merlin is 200 rubles.

New wood protection system that protects the outer part of the walls from sunlight and climatic precipitation. It is noteworthy that it retains its bright color for 10 years.

Consumption depends on the quality of the preliminary preparation. On average, 1 sq. M. the surface leaves about 100 gr. On bare walls, this figure increases to 120-140 grams. per square. Diluted with water, easy to apply. On average, you need 2-3 layers.

Price 2.7 liters - 950 rubles.

does not drip;
no smell;
adhesion is very high;
layers are dense, cover even small defects.

consumption is more than stated.

The use of such compositions increases the external attractiveness of structures and increases their service life. Advantages in increased strength, resistance to mechanical damage and sunlight.

Façade Deluxe Scanmix

Facade paint Deluxe is used for facing concrete bases, cement-limestone surfaces, putty. It is produced in the traditional white color, but the manufacturer allows the product to be tinted in the required shade.

Façade Deluxe Scanmix

Creates a matte, even finish. Water is used as a solvent in a volume of up to 10%. The density of the material is 1.56 kg / l. After applying the first layer to create the second, you should wait up to 4 hours. When creating one layer, the consumption is 0.10-0.16 l / m2. There is a facade dye on concrete for outdoor work 250 rubles per 1 liter.

good adhesion;
high covering power;
suitable for cement and plaster substrates, silicate and ceramic bricks, concrete.

the manufacturer does not tint - to give the desired shade, you need to buy pigments separately.

Protects walls from moisture, heat loss and minor mechanical damage. Since plaster itself is unattractive, a high-quality coating should be chosen to decorate it.

CAPAROL AmphiSilan-Plus

Silicone-based facade paint on plaster creates a reliable water-repellent layer. Can be applied on silicate or matt dispersion dyes. The product provides a high level of diffusion, but is considered to be vapor-permeable.

CAPAROL AmphiSilan-Plus

In addition, the facade paint for plaster has a good hiding power, it is resistant to external factors and aggressive components. Does not create a film, dries quickly and can be diluted with water. The price of a 10 liter facade dye is 6100 rubles.

Facade paint VGT has excellent adhesion to wood, brick and plaster substrates. After drying, it creates a uniform matte finish. The product is resistant to solar radiation and atmospheric influences.

As a result of using the snow-white composition, a "breathing" layer is formed. When working with paint on plaster for outdoor use, a brush, spray or roller is used. The product is diluted with water in the amount of 5%. The price for a domestic universal cladding of 15 kg is 1100 rubles.

Brick itself is a dense, durable material that is resistant to freezing and the sun. But at the same time, the treated surface is more resistant to seasonal fluctuations in humidity and temperature, while visual appeal is also important.

Akrial-Lux

Brick dye for outdoor use belongs to the category of all-season coatings, since it tolerates temperature changes very well. In addition, the coating is resistant to high humidity, but at the same time it is vapor permeable.

Akrial-Lux

The product is not exposed to ultraviolet radiation, while it does not change its structure and shade. Acrylic facade frost-resistant paint for outdoor use can be applied manually and mechanically. A capacity of 12 kg costs 2800 rubles, and 25 kg - 4100 rubles.

Important! With a high porosity of the brick, the base should be pre-primed with Acrylic-Primer to reduce absorbency and increase strength.

Lacre

Latex facade paint White varnish is used for cladding mineral surfaces, the outer side of the walls of buildings or for indoor work. Creates a monolithic matte coating that is resistant to atmospheric precipitation, climatic changes in temperature. The layer lends itself easily to frequent washing without abrasion and deformation of the structure. Dries quickly. Average consumption 6-7 m2 / kg depending on absorbency

Can be applied to concrete, brick or plaster substrates. Water is used as a diluent. The work uses a brush, roller or special spray. Allow 2 hours to dry between layers. A product weighing 14 kg costs 1200 rubles.

Facade paint - how to dilute, how to paint

Each dye has an individual composition. Because of what it needs to be diluted with different solvents - white spirit, acetone or ordinary water. This information must be indicated on the original packaging of the material.

Most outdoor concrete paints are water-based, which can be thinned with plain clean water. Moreover, after solidification, such a dye cannot be washed off upon contact with moisture. The proportions of consistencies directly depend on how liquid the material should be as a result. As a rule, the indicator does not exceed 15% of the total volume.

Water-based paint, in the opinion of most experts from the construction industry, is the most suitable option for cladding a building by DIYers with little experience in painting. It is easy to apply and at the same time is not subject to abrasion, weathering, moisture.

A brush, roller or spray gun is used as working tools. The latter device is most convenient for large-scale work. The material is applied in one layer, then the time specified by the manufacturer is waited for "setting" and is covered with the second, and if necessary or if the manufacturer allows, the base is covered for the third time.

VIDEO: What is the difference between expensive and cheap facade paint

Paint for building facades differs in many respects from material for interior work. First of all, it should be as resistant as possible to all influences present outside.

Moisture, temperature extremes, aggressive environment, ultraviolet light, mechanical stress are the main factors that can quickly destroy a layer from an incorrectly selected coating.

Types of facade paints

Before deciding how to paint a plastered house outside, you should learn a little more about what the building materials market offers today.

Facade silicate paints... They are based on silicate glue (liquid glass), and filler and natural pigments complement the composition. Painting the exterior walls on plaster will last for at least 20 years. The painted layer is vapor-proof, UV-resistant and acid-resistant.

Note! Among the disadvantages - poor abrasion resistance, frequent cracking. The latter is due to the zero elasticity of the layer, which deforms from thermal expansion. In the end, the owner often observes a grid of small cracks on the walls.

Slaked lime formulations... Perfectly let the steam coming from inside the room pass. The fungus will never settle on the walls due to the bactericidal properties of lime. Such painting of a house from the outside on plaster also has disadvantages - it is easily dirty, washed off by precipitation, and is poor in color. White and pale, pastel colors - that's the whole palette.
Cement facade paints... A base of white Portland cement, with the addition of pigments, creates a mixture similar to lime. Moreover, the paints, although they are more resistant to moisture, are not protected from mold and fungal formations. Therefore, even the low price of the material does not add much popularity to it, which more modern counterparts can boast.
Acrylic compounds... Reasonable cost and modern components that provide decent performance, put the material in a number of leaders. Most varieties are made on the basis of water, but there are analogues also on organic solvents.

Before painting the outside of the plaster, pay attention to its strength. For heavily worn facades where the plaster is unreliable, solvent-mixed options are desirable.

The paint is vapor-permeable to a lesser extent than silicate paint, but has better abrasion resistance. Durability and the ability to mask small defects and cracks on the surface add pluses.

Outdoor silicone paints... It is generally accepted that this option is one of the best. The attached instruction justifiably promises a whole list of benefits.

The coating will become hydrophobic, which means that precipitation and condensation from the fog will not be absorbed into the walls, but will flow down. At the same time, vapor permeability will remain, which is very important for the microclimate in the house. Micropores formed in the colored layer will not obstruct diffusion.

Adhesion to almost all types of plasters can be called ideal. Ultraviolet light, as well as temperature differences, have no effect on the paint. Dust will not be attracted due to the inability of the facade to electrify.

The disadvantages include the highest cost in comparison with previous types, and slightly less elasticity than that of acrylic paints.

How to calculate paint consumption

To acquire the exact amount of the required paint, it does not hurt to do some simple arithmetic operations.

Therefore, before painting a plastered house outside, it is worth calculating the surface area of \u200b\u200bthe facade walls.

It is calculated by multiplying the length by the height, then the results are summed up.
The sum of the areas of the door and window openings is subtracted from the result.
At the facade, which has a complex shape, all piers and ledges are measured out separately, then folded.
The result obtained is multiplied by the average paint consumption indicated on the package per square meter.
If you plan to cover walls in two / three layers, multiply this number by their number.

Note! The thinner the consistency of the paint, the thinner the layer will be, which means that the material consumption will be more economical. Another nuance is that the manufacturer indicates the average consumption for primed walls. The paint applied directly to the plastered surface will take much more.

Painting works

If you want a non-crumbling and non-fading surface, inspect the walls before painting the outside of your plastered house. If there is old paint on the plaster, you have to figure out the type.

Some rules for surface preparation

In the case of an identical previous coating, it is permissible to apply a new one without preliminary preparation. For example, a water-based acrylic composition will perfectly fit the same. With the same color of the old paint, you do not have to prime it.
Oil enamel as an old layer requires preparation. It is easy to clean it with your own hands, with the help.
Carefully evaluate the resulting condition of the walls. Fragments of old plaster should not lag behind and crumble. Traces of dust should not be allowed on the palm of your hand drawn along the wall.

At the slightest doubt about the durability of the rough coating, it should be putty. Then prime with a deep penetrating compound. This will make the surface durable, and at the same time will improve the adhesion of the new paint. The grip in this case will be maximum.

Note! Do not neglect the preparation stage. Competently does not require restoration for a very long time.

Painting process

You will need a minimal set of tools.

Electric or pneumatic spray gun.
Wide brush.
Roller with medium pile.
Scaffolding or a secure ladder.

Note! After opening a can of paint, be sure to stir the contents. If you have a construction mixer, use it. An ordinary metal rod or a piece of lath will do.

If this is not done, the mixture will be uneven in color and consistency.

When painting with a brush or roller, the direction of the first paint layer should be vertical and the second horizontal (criss-cross). This way you will achieve an even painted surface, without spots and gaps.
If using lime paint, apply three coats. Each subsequent one can be put only after the previous one has completely dried.
All other paints can be applied in two layers, this is quite enough for a uniform color and tone.

Try to paint in one step, quickly and without pauses. Otherwise, the dried paint in the future may differ slightly from later areas.
Cover the painted wall with foil some distance away. This will protect the still wet surface from dust adhesion and precipitation.
Try to work in warm, dry weather. Rain or snow will interfere with the staining and drying process.

Alternative Formulation Varieties

For outdoor use, different colors are produced, but also in terms of decorative load of paints. For example, you want the walls to shine slightly, or, conversely, achieve a matte finish. This idea is easy to implement, you just need to choose the right material.

Moreover, a special, structural paint is also produced, with its help you can achieve a 3D effect on the walls. Correctly applied, it will give the plane a relief, which then, if desired, can be tinted with a different color without painting over completely.

Output

Only a correctly selected paint and a thorough approach to work will give a positive expected result. If the material is compatible not only with your taste, but also with a well-prepared surface, you will not be in danger of quick restoration work ().

The video in this article will show you how to choose the right paint and apply it in practice.