The cheaper it is to clad a house of aerated concrete. What can be the exterior finish of aerated concrete house

After building a house from aerated concrete, you have to think about the next stage - finishing the facade. Modern materials for this purpose can perform several functions at once: decorative, protective and others. That is why it is necessary to carefully consider all options in order to stop at the best, not only in terms of external and quality characteristics, but also in terms of price. Exterior decoration of an aerated concrete house can be done in different ways and in accordance with various technologies - all of them will be discussed in this article.

House features

Aerated concrete blocks are a modern innovative material, thanks to which the process of building walls is simplified several times. It belongs to the category of lightweight cellular concrete, which have open pores. The increased porosity is explained by the inclusion of aluminum powder in the composition. The same component allows the blocks to have high vapor permeability.

The main function of aerated concrete is insulation, but if the wall thickness is incorrectly calculated, an additional layer of insulation will be needed on the outside, which will lead to additional costs. If all the calculations were correct, then it is enough to allocate a small amount for finishing, which will be enough to give the house an attractive look, as well as protect the aerated concrete from high atmospheric humidity, water, frost and ultraviolet radiation.

Note! Before proceeding with the decoration of the walls of the house outside, it is necessary to complete the internal work.

Why do you need an exterior finish?

It is necessary to finish the walls outside the building if cement-bulk mixtures are used to fasten them, but if a special glue was used, then it is enough to give the facade a pleasant appearance. The market of finishing materials offers a fairly large range:

• clinker tiles;
• siding;
• plaster;
• brick;
• decorative plates;
• fiber cement panels.

Note! It is very important that the selected material not only performs the specified functions, but also “breathes”, so the air circulation is not disturbed.

When deciding to finish the walls with clinker tiles, it is necessary to make all the calculations at the initial stage of construction. So, for example, an additional air gap between the wall and the finishing layer is taken into account. For maximum air intake when laying tiles in vertical joints, leave slots for ventilation, the total area of ​​​​which should not exceed 1% of the total area.

Note! The layer of clinker tiles should not protrude beyond the foundation or be butt, therefore, when forming, additional centimeters are taken into account for the exterior finish, especially when it comes to strip foundations.

Siding

One of the modern finishing materials is siding. Manufacturers make siding with a variety of surfaces that mimic natural materials such as stone or wood. When decorating walls with siding, you can get a lot of advantages, since it itself has many positive properties, for example:

• heat resistance;
• moisture resistance;
• ease of installation.

If it is necessary to additionally insulate the walls, then in combination with siding, both soft (mineral wool) and hard (foam) insulating materials are used. Affordable price completes the list of advantages of this finishing option. It is worth noting that for installation there is no need to involve professionals, since you can handle all the work yourself.

Note! When working with siding, it is necessary to leave thermal gaps, because siding is affected by temperature.

Decorative and simple plaster

If there is no need for a strong protection of the house from cold and humidity, then you can consider finishing the walls of aerated concrete with a more affordable and simple option - plaster. Before applying decorative plaster to the wall, it is worth calculating whether the thermal insulation is sufficient or whether an additional layer of insulation is needed.

The technology for finishing walls with plaster is also simple and does not involve the use of special tools or new technologies. The insulation is first attached to the walls with a special glue and dowels. Then all the seams between the sheets are puttied and fixed with glue and fiberglass reinforcing mesh. For greater strength, the surface is plastered in 2 or 3 layers, and after complete drying, the walls are primed and painted with facade paint.

Note! Almost all options can be considered as an additional insulation: polystyrene foam, polystyrene foam, mineral wool.

Brick

Finishing a house made of aerated concrete with facing bricks is also very popular. This finishing method must be calculated in advance, as in the case of tiles, because the brick layer should not protrude beyond the foundation, otherwise the load will be incorrectly divided and the walls may settle.

The brick is connected to the gas blocks using spiral nails, as well as the usual cement mortar. At the same time, it is very important to constantly remove excess mortar so as not to spoil the appearance of the brick. To give maximum durability and bonding, a reinforced mesh is installed between the wall and the brick.

Note! In this option, as in the case of other finishing materials, it is necessary to leave a ventilation gap 3 cm thick.

Decorative panels

An equally common way today is to finish with decorative plates, the surface of which imitates tiles, stone, wood and other materials. The fastening of the panels must be done exactly according to the instructions from the manufacturer, otherwise the strength will be compromised and after a few years the decorative wall will crack or settle, and cold will begin to penetrate through the cracks.

Note! On the construction market, you can find ready-made structures that have fasteners with which they can be fixed directly to gas blocks and thus simplify the finishing process.

In the past few years, fiber cement panels have appeared on the building materials market, which were first developed and produced in Japan, but today each country has its own manufacturer. Among the advantages of this finishing material are:

• a wide range of colors, textures, sizes;
• light weight;
• ease of installation;
• minimum load on the foundation;
• high mechanical strength.

When decorating a house with fiber cement panels, it is worth considering that they can have different thicknesses, which will affect the size of the screws. It is with their help that the panels are attached directly to the walls, and the caps are painted to match the panels. To create ventilation between the walls, a gap of 3–4 cm is left. Also, when installing the plates, a distance of 1 cm is left between each element on all sides, which is then filled with a special sealant.

Note! Wall decoration with modern fiber cement panels should be carried out on a flat and even surface, so all old trim elements are dismantled, and with them window sills, lanterns, holders.

Aerated concrete is a modern and versatile building material that needs additional weather protection. It is worth considering all the finishes.

The first question that confronts every owner of a newly built house is the finishing of its facades. This process largely depends on the design of the building, and on the materials used for its construction.
Exterior finish for aerated concrete house is important, more than, for example, for a brick building - because of the structure of aerated concrete.

Features of aerated concrete walls

This type of concrete belongs to the category of lightweight cellular concrete. If we compare it with foam concrete, then, unlike it, aerated concrete has open pores.
Initially, both of these materials were created as heaters, and later they began to be used for laying walls. The technologies for their production are different, so the properties and characteristics of these concretes are different.

Aluminum powder is added to the composition of aerated concrete as a gas-forming substance during manufacture. It is to her that concrete owes its porous structure. The same fact also determines its high vapor permeability, which exceeds this criterion for all other structural materials in terms of its performance. Finishing the facade of the house from aerated concrete blocks should be carried out strictly according to the technology, which takes into account, first of all, this factor.

It should also be noted that if violations were made during the construction of the walls themselves, then this may affect their appearance even after proper finishing. Such violations include the neglect of the masonry reinforcement process or the use of the wrong masonry mortar. Therefore, if you are building a house with your own hands from gas blocks, then, first of all, you will need their manufacturer's instructions.

Many customers, in order to save money, mistakenly prefer to do without a project during construction. At the same time, any mistake made in the process of construction work can significantly increase your costs: if not immediately, then after the shrinkage of the house for sure. And the exterior finish of gas silicate walls is no exception. For example, a competent heat engineering calculation can show that the thickness of the walls of your house is such that additional insulation is not required. It will be enough just to plaster the walls - that's the savings for you.

And if insulation is necessary, then what materials are best used for this? Let's say you want to use facing bricks. It is necessary to calculate whether the foundation can withstand its weight, because the brickwork will rest on the plinth. In general, there are many nuances.

You should take into account that the exterior decoration of the house made of aerated concrete should be carried out only after the completion of the interior decoration. In any case, after all wet processes - floor screeds, plastering, tile laying.
In this case, the vapors generated during these works will be able to escape through the thickness of the walls. And do it all in the summer.

Facade plastering

The question often arises, how to sheathe a house of aerated concrete from the outside? What is the best option for facing the facade of a house made of aerated concrete? Cladding can be done with a variety of materials. Some of them are specifically designed to work with cellular concrete. Get some plaster.

Conventional cement-based mortars are not suitable for this purpose. Aerated concrete instantly takes moisture out of them, and no primer will help here.
As soon as such plaster dries, its surface will be covered with a web of cracks. Therefore, mixtures with special additives that prevent the absorption of moisture have been developed for gas blocks. There are no differences from similar works on brick walls, the sequence of work remains the same. First, the surface is prepared, which includes cleaning from excess solution and dust. After the walls are primed with a composition designed specifically for aerated concrete.

The next step will be the installation of the plaster mesh. To do this, use either a metal version with small cells, or a fiberglass mesh.
It is fixed to the wall with ordinary screws.

The presence of the mesh during the plastering process guarantees good adhesion to the surface. Those who neglect the use of reinforcing mesh, as a rule, have to redo the work due to the fact that the plaster layer can completely move away from the wall.

Next, the solution is mixed by adding water to the dry plaster mixture and plastering is performed. If you have not encountered such work before, watch the video beforehand or read the materials on this topic.

When the process of applying the plaster is completed, it's time to start designing the facade finish. You can get by with a simple coloring of the surfaces, but at the same time use two or three shades as in the photo above. You can paint individual elements in a different color, or use a stencil to draw lines or a pattern.

At the end of the finishing cladding, it is desirable to treat the surface with a special hydrophobic impregnation with water-repellent properties. It's called a "water repellent". As you understand, aerated concrete also has its own composition. Those water repellents that are used for ordinary concrete and brick, in this case, will be useless.

The water repellent is applied in a thin layer - this is enough to protect the decorative surface from the effects of precipitation and dust. Such impregnation allows the house to "breathe", while improving the thermal insulation properties of the material on which it is applied.

You may prefer not to paint the walls, but to use decorative plaster. In this case, pigments or marble chips are added to the last batch of the solution.

The plastered surface can be decorated in another way. For example, finish in fachwerk style. To do this, a contrastingly painted wooden or polyurethane board is mounted on them.

Smooth and uniformly painted surfaces are also perfectly combined with other types of finishes. These can be fragments of the facade, lined with tiles or decorative stone. Most often, the plinth, window and corner zones, pediment or porch are decorated this way.

The exterior finish in an aerated concrete house will also look great if, along with plastering for cladding, use panels for house decoration. They can be trimmed with piers, balcony parapets, if any.
And the plinth, lined in this way, will look just great.

Plastering of the facade is carried out if the building is located in a climatic zone that allows you to do without insulation. Or when it is necessary to do the insulation, but frame wall cladding is chosen as the interior decoration: panels, clapboard, drywall.
In this case, the walls can be insulated from the inside. If the facade needs to be insulated from the outside, then it is better to choose another method for its sheathing.

Brick and tile cladding

Exterior decoration of aerated concrete houses with facing bricks is perhaps one of the best options. Due to its hollow structure, it provides a favorable microclimate and a good appearance. The brick surface is durable and weather resistant.

The price of such a finish is an order of magnitude higher than plastering. Brick wall cladding is quite time-consuming and requires certain professional skills. After all, the brick must not only be laid beautifully on the mortar, but also competently fasten the brickwork to the wall.

Professionals know many ways to process bricks and options for laying them. Thanks to this, the lined surface can have a unique relief. In addition to the facade cladding in the same style, landscaping and a fence of the local area can be made.

Such cladding is used only in low-rise construction. If the building is more than two stories high, brickwork can be simulated using metal or fiber cement façade panels mounted on the frame.

If you didn’t like the proposed options for cladding a house of aerated concrete outside, then pay attention to a more profitable way - tiling: clinker or porcelain stoneware. The surface of the tile better resists the effects of precipitation, aggressive substances. Its weight is much lower, which reduces the load on the foundation.

The dimensions of the clinker tiles are small, approximately like the side of a clay brick. Therefore, it is time consuming to carry out a continuous lining with such small elements. More often, only fragments of the facade are decorated with clinker, combining them with plaster.

For facing houses of a large area, thermal panels are often used, which simultaneously perform both insulation and decoration of the facade. The front side of such panels is factory-lined with clinker or stone tiles. At the same time, the tile is natural, not imitation.

Porcelain stoneware is larger than clinker tiles, which greatly simplifies the implementation of continuous cladding. Moreover, it can be mounted not only on glue, but also on a wooden crate, thus ensuring good ventilation of the facade.

If it is necessary to insulate the walls, porcelain tiles can be mounted on an aluminum profile, laying insulation in the frame cells. Who is interested in this issue, look for materials on the installation of ventilated facades.

Surface preparation for facing with bricks or tiles must be done very carefully. This stage includes not only cleaning the surface. For example, sealing seams, potholes and visible voids with mounting foam, gluing them with insulating tape and subsequent sealing with putty. After the walls are primed with the composition, which we mentioned above.

This is not a complete list of materials that can be used to finish the exterior of a house built from gas blocks. For decoration, plastic, various types of siding and wall paneling for exterior decoration, wood panels are used.
So choose your option, combine materials, use decorative overlays. Take the finishing seriously, strictly follow the technology - and you will get a high-quality decorative coating of the facade.

Aerated concrete is a porous stone made of cement and quartz sand, a kind of cellular concrete. It has become widespread in the construction of private houses due to the speed of construction, good thermal insulation properties, and low price. Unfortunately, it has a high moisture content. Many open pores in the stone, thanks to which it is a warm building material, are easily filled with water when it comes into contact. When aerated concrete blocks are saturated with moisture, thermal conductivity increases. Therefore, the exterior decoration of the walls of such houses should have, along with a beautiful appearance, also strength and moisture resistance.

• reliably protect the outside walls of the house from moisture, rain, snow;
• do not change their properties in the cold;
• be resistant to chemical environments, vehicle exhaust gases;
• do not fade under the influence of sunlight;
• resist ignition;
• have high thermal insulation, soundproof characteristics.

The following options for exterior decoration of the facade of houses are most common:

• plaster;
• siding trim;
• facing with brick or stone;
• painting.

Plastering with ordinary sand-cement mortar is not suitable for walls made of aerated concrete blocks due to its moisture permeability.
If it is decided to plaster without insulation, then the aerated concrete blocks must be covered with a penetrating primer. All subsequent work to be done after it dries. The plastering of the facade of a house made of aerated concrete blocks should be carried out using a reinforcing mesh. Particularly responsible places: the corners of the house, window and door slopes. Then puttying and painting is done.
Modern thin-layer facade plaster mixes effectively replace plaster with a reinforcing mesh. The selected plaster mixture should:

• be easy to use;
• lie well on the base, evenly distributed;
• have good adhesion;
• have a long shelf life.

Facade mixtures are:
Mineral decorative facade plasters are made on a cement basis. To increase adhesion, redispersible polymer powders are introduced into the composition of the mixture. Sometimes such mixtures are sold as a polymer-cement mixture. They are packaged in bags.

Before use, the powder is diluted with water according to the instructions. Use on concrete, brick bases, on base plaster. Before applying such mineral plaster, the base must be primed, the primer must dry. This plaster is moisture-resistant, non-flammable, durable, inexpensive, and when applied with a water-repellent composition, it lasts up to 20 years. The negative properties include the rigidity of the coating and the difficulty of obtaining the desired color.
Acrylic-based exterior wall plaster is synthetic. Sold liquid, ready to use. Such plasters have high moisture resistance, resistance to deformation, good adhesion to the base. But low vapor permeability makes you carefully approach the choice of insulation. For example, mineral wool can get wet. Another serious disadvantage is flammability.
Silicate facade plasters are made with a predominant predominance of potash liquid glass.

Such plasters are sold in liquid form. Their undeniable advantages: strength, elasticity, hydrophobicity, vapor permeability, antistatic. The disadvantages are limited colors and fast setting. After breaking the integrity of the package, all contents should be quickly used. Before plastering the walls, they should be covered with a special silicate primer.
Silicone or silicone plasters for the facade are made with a predominance of silicone, which gives them moisture resistance, good adhesion, elasticity, ease of use. The only downside is the high cost.

Siding - a modern type of protection for the facade of the house

Siding is the most reliable protection of the walls of the house from adverse weather conditions. The house is sheathed with clapboard, vinyl siding, metal profile sheets or ceramic panels. A crate is attached to the house, on which the siding panels are fixed. The facade is well ventilated.

If a layer of insulation is laid between the siding and the wall of the gas-block building, there is an additional opportunity to reduce heating costs. This way of protecting the facade is often optimal.
Wood siding is the exterior cladding of the walls of a house with specially treated boards. In cold weather, it keeps heat well, creating a cozy atmosphere in the house. This house has a representative stylish look. In modern construction, the following types of house wall decoration with wooden siding are popular: block house and false timber. Block house is a board, on the front side of a semicircular shape, imitating planed logs. The false beam has a flat face. Exterior trim with false timber imitates timber walls. Facing boards are treated with compounds to increase strength, against fungus, woodworms, moisture. Wooden siding made of natural wood is much more expensive than other types of siding, but this is offset by environmental friendliness, low thermal conductivity, and a presentable appearance.

Facade cladding from the outside with wood siding or glued clapboard made of wood-polymer composites is cheaper. It is made by pressing under pressure at high temperature from wood fibers and polypropylene. Such siding is resistant to moisture and fire, does not require coating with paints, impregnation with protective substances, and lasts more than 15 years.
Vinyl siding is made on the basis of polyvinyl chloride with the addition of modifiers, stabilizers, dyes and other components that improve the performance and aesthetic properties of the finishing material. It looks like an ordinary board, but without additional processing it retains its properties and appearance for at least 20 years. It is very practical in operation: it does not require complex maintenance, withstands temperature extremes well, is resistant to pollution, and is easy to install. Vinyl siding also comes with imitation stone, brick.
Metal siding - these are profiled metal panels, made of galvanized sheet steel with a polymer coating. The covering imitates a ship board, a bar, lining, etc. According to structure the steel siding consists of several layers.

A passivation layer against corrosion is applied to the galvanized sheet on both sides, then primed. After that, a polymer layer or paint is applied to the front side, and a layer of protective paint is applied to the inside. Panels are made with a thickness of about 0.5 mm. Metal siding wins over other types of siding in durability (service life up to 50 years), fire resistance, strength, low cost. The disadvantage is the greater weight, which increases the load on the supporting structures of the house and the foundation.
Cement siding for wall decoration is rarely used because of its shortcomings. Such panels are made of sand and cement. They are heavy and require very solid sheathing and load-bearing structures. Difficulties in installation are also caused by silicon dust generated during sawing. The main advantage is incombustibility. It is better to use it where there are increased fire safety requirements.

For facing aerated concrete blocks with brick or finishing stone, it is necessary to provide for the width of the foundation for the house, taking into account the thickness of the facing layer, so that the main load-bearing wall and the facing layer can stand on the foundation.

A gap of 30-50 mm should be provided between the wall and the facing layer, and a layer of heat-insulating material is also possible for insulation. Without a gap, you can finish houses in which you plan to live only in the warm season. Brickwork must be firmly connected to the wall of aerated concrete blocks and be a single solid system. Such solidity is achieved by establishing connections. They are brought into the facing and supporting structures during masonry. They are metal and basalt-plastic.
You can veneer the facade of the house with natural or artificial stone. Natural stone has a respectable appearance, environmentally friendly, strong, durable, non-flammable, easy and quick to install. The disadvantage is the large weight of the stone, which increases the margin of safety of the foundation and load-bearing structures of the house. The construction industry offers natural stone slabs. They are laid on frost-resistant glue "For stone". The back side of the plate must first be primed. After finishing the facing work, the surface of the stone must be covered with water-repellent compounds, for example, Hydrophob.

It is much cheaper and weighs less artificial stone. Laying is facilitated by the standard dimensions and identical characteristics of the facing boards. On sale there is a variety of facing stone, a wide range of colors.

Coating with special paints and putties

Coating aerated concrete blocks with special paints and vapor-permeable putties is the cheapest way to protect the facade of a house from moisture. They are sold in the form of dry mixes. The most popular putty of this class is "Prospectors". Before use, they are diluted with water and color is added to give the paint the desired color. The finished paint is applied with a roller or brush in two layers. The main disadvantage of this method is the need for careful preparation of the base surface. This is the cheapest way to finish the facade of aerated concrete blocks, but also the most short-lived.
If additional wall insulation is required from the outside, the simplest is foam insulation, then puttying with a reinforcing mesh and painting. The foam is attached to the base with glue and dowels. The joints between the foam panels are best sealed with tile adhesive. Then the entire surface is reinforced with a fiberglass mesh, puttied with any putty for outdoor use, and painted.

Since ancient times, the outer walls of houses were lined with finishing materials. Decorative cladding gave buildings uniqueness, protected them from adverse effects, and increased their service life. The modern construction industry offers various options for finishing the facade of houses made of aerated concrete blocks. The choice is best made based on the financial capabilities of the owner, aesthetic preferences, durability. The final look of the house should be in harmony with the interior, as well as the landscaping of the infield and the surrounding nature.

The widespread use of aerated concrete blocks is due to their affordable price, lightness and strength. But the problems may be due to the fact that this material does not look very good. A well-executed exterior finish of a house or other building helps to improve the situation.

Peculiarities

The construction of urban and suburban buildings from finished industrial parts is becoming more popular year by year. But you should not think that the exterior decoration of the walls of a house made of aerated concrete will adversely affect the overall price of the structure or worsen its practical qualities. As practice shows, it is not at all necessary to make a finishing layer or mount hanging screens that completely mask the unattractive masonry. Of course, all types of finishing materials and elements are selected taking into account the increased permeability of aerated concrete to water vapor and its tendency to absorb water.

Finishing blocks outside, according to experts, does not always require the creation of an insulated layer.

If the used elements are thicker than 40 cm, then in normal climatic conditions of the Russian Federation(except for the northernmost regions), the material itself provides a decent level of thermal protection. Considering that aerated concrete is most often purchased in order to save on construction, any additional materials and structures should be cheap. Mechanized application of plaster mixtures (if it is decided to use them) is quite possible. For this purpose, both industrial and home-made devices are used.

Advantages and disadvantages

For everyone who wants to save money as much as possible and simplify work, a logical question arises - is it worth finishing aerated concrete or not? In many informational materials, one can find the statement that the decorative layer has a purely aesthetic purpose and there is no practical need for it. But in fact, there is at least one plus - it is necessary to finish aerated concrete because it passes a lot of water vapor. At the same time, the finishing material should be selected exactly with the same level of vapor permeability, which limits the choice. If you violate these rules (do not finish the aerated concrete from the outside or do the coating incorrectly), you may encounter a sharp reduction in its shelf life.

Brick

It is impossible to veneer an aerated concrete wall with bricks without preparing a mobile sheet, the thickness of which is 4 cm. This sheet will provide a technical gap from the wall to the masonry. Air will begin to circulate in the gap that has arisen, therefore the problem of the different abilities of the two materials to pass steam is automatically solved. Before covering the outside of a private aerated concrete house with brickwork, you need to make sure that the foundation can withstand the increased load. Ideally, such a decorative element should be included in the working draft.

It should be borne in mind that the brick finish:

• increases resistance to water;
• makes the structure stronger;
• very difficult to perform;
• costs a lot of money.

Siding

Sheathing a house with siding can be much faster and cheaper than bricking it. A wide range of color and texture options will undoubtedly delight home owners. Aerated concrete blocks can be completely covered from water penetration, moreover, such a finish is very durable and non-combustible. Siding does not create a significant load on the foundation and is resistant to ultraviolet radiation. It is easy to care for him, to maintain the surface in good condition.

You can often hear that siding does not tolerate mechanical destruction. But this is not too important, because it is easy and quick to replace the affected blocks with completely new ones. Given the relatively low strength, it is worth taking the coating with a margin. And even if the entire installation went well, there is no need to rush to send this stock to the trash. It may turn out that after a few months or years it will no longer be possible to find siding sheets with the same color.

Ventilated facades

Facades with an internal ventilation gap are great for finishing houses made of aerated concrete. If they are made in strict accordance with the technical rules, it will be possible to provide both a beautiful appearance and reliable protection of the base material from the weather. The rate of heating of internal premises will increase, thermal energy will be distributed more evenly through them. Accordingly, the cost of heating resources will be less. Ventilated facades on aerated concrete can only be insulated with vapor-permeable materials.

In addition to mineral wool, it is necessary to place a membrane that protects against moisture, which must also allow steam to pass through. This solution will ensure the timely removal of condensate to the outside. It is impossible to use expanded polystyrene for insulation, because it will prevent the release of water vapor, and very soon the wall will begin to deteriorate. The use of ventilated facade technology, along with improved thermal protection, will muffle street noise. But this method is unacceptable near water bodies or in areas where there is a lot of precipitation.

The ventilated surface immediately changes the appearance of the building. It can be modified in accordance with any chosen design approach. The facade can last up to 70 years, and the absence of "wet" work allows installation regardless of the weather. Work should be started only after the completion of all internal work that contributes to an increase in moisture concentration.

For fastening a ventilated facade to aerated concrete, use:

• drop-down dowels of spring type;
• dowel-nails nylon universal purpose;
• chemical anchors;
• mechanical anchors.

Tile

Facing gas blocks with clinker tiles is no worse than other finishing options. She gradually pushes the brickwork into the background. It is important to consider that simply applying clinker (gluing to the wall) will not work. Aerated concrete will dry out the adhesive mixture in a matter of weeks, no matter what it is, and after that the tile will begin to crumble to the ground. This cannot be allowed.

The initial layer is applied with reinforcement mesh made of metal or fiberglass. Then you need to put an additional final layer of plaster and level it. Only after complete drying of all plaster can tile be mounted. To do this, use resistant to cold and moisture varieties of glue, create a large seam between the tiles. The minimum gap size is ¼ of the area of ​​the cladding element.

To improve the bond between aerated concrete and ceramic plates, intermediate reinforcement with steel or plastic dowels will help. Ordinary nails or stainless screws can replace them. In all four cases, it is required to drive fasteners into the masonry and mask them in the seams between the parts of the clinker array. Experts believe that you need to do 4 or 5 attachment points per 1 sq. m. Then the lining will hold securely and will not collapse prematurely.

Plaster

The plaster layer can be created not only as a basis for a ventilated facade or clinker tiles. With the proper selection of the mixture and the competent execution of the work, it will become an attractive design solution in itself. It is recommended to use only specialized facade plasters. When working with acrylic compositions, you can count on long-term preservation of useful qualities, but you should be wary of open fire (the material can ignite easily).

Silicon plaster, which absorbs little water and is relatively inexpensive, shows a wide variety of textures, but a meager color range. It should not be used where a significant amount of dust and dirt will fall on the walls. The gypsum composition dries quickly and does not shrink, and only one layer is enough for decoration. But we have to reckon with a low level of vapor permeability and with accelerated wetting under the influence of precipitation. In addition, the surface of gypsum is often stained, they will have to be painted over immediately - there are simply no other ways to fight.

Painting

But once in this version, you still have to paint the aerated concrete wall - it is logical to look at the use of paint. Paints and varnishes of this kind are divided into two groups: some contain reinforcing fibers and give texture, while others form an attractive relief. Both types of coloring mixtures can be applied to aerated concrete blocks with a simple roller without additional manipulations. The created layer has a matte sheen, the tonality of which is easily adjusted by color additions. Paintwork materials for aerated concrete are guaranteed to work for at least 7 years and will absorb some water.

This solution eliminates the occurrence of cracks, and the refusal of developers to use a water-based organic solvent helps to prevent the occurrence of a bad smell. Before applying paintwork materials, it is required to remove all dust and smooth out minor defects with a grater. Staining is carried out either immediately or using facade putty (depending on the complexity of the situation).

Criterias of choice

As it is already clear, the external finishing of aerated concrete walls can be performed using a variety of technologies. But the manufacturers of each coating are trying to attract the attention of consumers, telling that they have the best and most reliable, that it is their solution that is ideal for gas blocks.

• sand and concrete plaster;
• Styrofoam;
• expanded polystyrene;
• covering paint forming a film.

Simple black self-tapping screws for fastening the battens under a ventilated facade should not be used. Dowel-nails proved to be much better in practice. They do not form cold bridges and are not subject to the harmful effects of condensing moisture. The installation step is reduced to 0.4 m - this allows you to make the most uniform distribution of the wind shock load. If it is decided to finish the aerated concrete wall with bricks, it will be necessary to provide ventilation in the lower part of the masonry, and also take care of closing them with bars.

For your information: brick is worse than other options, because its use creates an increased load on the foundation.

Even if the masonry runs in ½ brick, a significant mass is still created. You will also have to take care of flexible connections between the main and outer walls. Summing up, we can confidently conclude that the use of a ventilated facade gives the best results. Only this technology guarantees both external beauty and weather resistance.

The interior decoration of the house made of aerated concrete serves not only for decoration, but also performs a number of functions for warming and protecting walls. Since aerated concrete is a porous material, its condition is strongly affected by the temperature and humidity of the air, therefore, the external and internal decoration of aerated concrete walls acts as a natural protective barrier. This means that it is important for the owners to know what materials to choose for lining and how to apply their properties in practice.

The "bare" walls of aerated concrete are not presentable enough to leave them unfinished. Source tolkobeton.ru

Features of interior decoration of walls made of aerated concrete blocks

Aerated concrete due to the porous structure has a high air permeability. If the wall does not have an interior finish, warm room air easily seeps through it. In the cavity of the wall, it is cooled to the temperature of the outside air, forming condensate, which accumulates in the pores of the material. Thus, walls made of aerated concrete without finishing create large heat losses and become damp due to the formation of condensate.

The main task of the interior decoration of a house made of gas silicate blocks is to reduce the permeability of the walls, that is, to "seal" the material from the side of the room. For this, special plaster, plasterboard or wooden sheets are used. Decorative wall decoration on such a basis can be of any kind.

Gas blocks are quite democratic in terms of material compatibility - they can be paired with both plaster and wood Source asm.ru

Types of materials and methods of interior decoration

In modern construction, there is a large selection of finishing materials for aerated concrete. Thanks to this, it is not difficult to choose a lining to your taste and wallet.

For rough finishing of aerated concrete use:

plaster;

plasterboard sheets with insulation.

For decorative finishing of aerated concrete, you can use:

paint and varnish compositions;

textured plaster;

wooden or plastic lining.

For the right choice, you need to understand the properties and advantages of each of these materials.

When installing a rough finish, if necessary, the walls can be additionally insulated Source board.bau.com.ua

Wall plaster

With the help of plaster, you can level the surface of the walls for painting or wallpapering. However, an ordinary cement-sand mortar is not suitable for finishing walls made of aerated concrete indoors. In construction, special plaster mixtures are used, which have the following parameters:

They retain moisture, therefore, when applied, it does not penetrate into aerated concrete;

Improve the adhesion of plaster with aerated concrete;

Make the solution more plastic and comfortable to apply;

Accelerate the process of solidification of the mixture on the wall;

Increase the strength of the coating;

Eliminate cracks during application.

It is better to entrust the work of applying plaster on aerated concrete walls to professional craftsmen. The surface is quite difficult to level due to the texture of the blocks and the unevenness of the seams. It's also important to note that the plaster takes some time to dry, so it can take days or weeks to finish the entire house.

Plaster is one of the best materials for rough finishing. Source ukrsmeta.ua

Drywall

An alternative to plaster is the installation of drywall sheets. The method of laying the material depends on the evenness of the wall. If the blocks are laid evenly, the drywall is simply glued to the wall. This method If the wall requires alignment, you will have to install sheets on a metal frame with a layer of insulation.

Drywall is the ideal base for any decorative finish. It can be covered with decorative plaster, painted and wallpapered. Sheets of drywall can be lined with all rooms in the house.

On our website you can get acquainted with the most popular projects of aerated concrete houses from construction companies presented at the exhibition of houses "Low-Rise Country".

Wood

Wood is an environmentally friendly material and has a beneficial effect on the microclimate of the house. This decoration of the house looks very comfortable. If you make wooden cladding throughout the house, it will completely look like a real log house.

Wooden cladding goes well with aerated concrete walls due to the technical similarities of the materials. Both wood and gas silicate have a porous structure and good thermal conductivity. However, the lining is subject to mandatory treatment with water-repellent and anti-fungal varnishes.

The most popular types of wood for home decoration are pine and spruce. They are characterized by high strength, aesthetic appearance and pleasant coniferous aroma.

Wall cladding with clapboard will make the room indistinguishable from a room in a log house Source legko.com

Laying ceramic tiles on aerated concrete is recommended in rooms with high humidity - a bathroom or kitchen. The tile will create a protective barrier that will not allow the walls to become damp from steam and condensate.

For laying tiles, you need to use a special adhesive that will create good adhesion to the aerated concrete wall. An ordinary cement mortar will not work for these purposes, you need a sealed composition with antifungal additives.

When facing walls made of aerated concrete with tiles, you must additionally take care of a powerful ventilation system so that moisture does not linger in the room. This is the only way to avoid the appearance of fungus and mold in the bathroom.

Ceramic tiles - excellent protection against moisture Source zavoddelta.ru

Wall papering

After puttying or plasterboard sheathing, the walls can be covered with any wallpaper. In this case, it is worth considering their breathability. For example, vinyl wallpaper creates additional protection for aerated concrete from moisture and temperature changes. The paper canvas is more "breathable", it is recommended to combine it with a dense layer of plaster.

The technology for gluing wallpaper on an aerated concrete wall differs little from the standard one. Before starting work, the wall must be primed. Otherwise, the recommendations related to the type of wallpaper and the basis for gluing are observed.

When choosing wallpaper, the main thing is to choose not only the material, but also the pattern. Source qes.ru.net

On our site you can find contacts of construction companies that offer the service of reconstruction and restructuring of houses. You can directly communicate with representatives by visiting the exhibition of houses "Low-Rise Country".

wall painting

Painting walls in a house made of aerated concrete is done on top of plaster or plasterboard sheathing. For finishing, water-based paint of one of four types is most often used:

acrylic;

silicone;

silicate;

mineral.

In order to further protect the aerated concrete from water, acrylic paint is used, which has water-repellent properties. Silicone and silicate paint are vapor permeable, so they require reliable plastering.

Before painting, a rough wall finish is required - a primer, plaster or drywall Source reference.com

PVC panels

Installing plastic panels on an aerated concrete wall is a budgetary and easy-to-perform finishing option. PVC panels can be of different colors, as well as imitate the texture of wood or stone. The main condition for their installation on aerated concrete is the presence of a waterproofing layer. This is especially important when decorating a bathroom or kitchen. Also, PVC panels suffer from temperature changes, so they should not be used in the decoration of balconies and hallways.

PVC panels are quite a nice and budget solution. Source 1zoom.ru

Finishing mixtures must be selected based on their compatibility with aerated concrete. Any company has building materials with such a mark.

Instead of the usual leveling plaster, you can use a decorative textured mixture. It will not work to stick wallpaper on it, but the paint will look very impressive.

In order for the cladding to serve for a long time and perform the functions assigned to it, a forced ventilation system must be organized in the house. This is especially true for bathrooms and kitchens.

Examples of interior decoration of a house made of gas blocks

In this small gallery you can see examples of finishing houses from gas silicate blocks.

A very practical application of the space under the stairs. Source yandex.ru

In the attic it is desirable to install large windows Source pinterest.com

Video description

And a slightly non-standard look at the finishing of aerated concrete in the following video:

Conclusion

Since indoor aerated concrete wall decoration plays an important role in maintaining a home microclimate, you need to know and understand the difference between popular room cladding options. Only after selecting the material you need according to its characteristics, you can proceed to the choice of the most beautiful and suitable type of finish.