Exterior finishing of aerated concrete walls. Exterior decoration of a house made of aerated concrete or foam blocks

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Due to their high thermal insulation characteristics, aerated concrete blocks are very popular today in private housing construction. But they have one drawback - high water absorption. Therefore, precisely selected and mandatory exterior decoration houses made of aerated concrete are the main requirement when decorating the facade. There is no need to say that today manufacturers offer a huge number of different materials that are used to decorate the outside of a house. All of them can be used when finishing the facade of a house made of aerated concrete blocks.

Types of materials for facade finishing

Before moving on to analyzing the finishing, it is necessary to note that aerated concrete is a type of lightweight cellular concrete with a high vapor permeability rate. That is, walls assembled from this material “breathe” well. It is with this indicator in mind that finishing work must be carried out.

Plaster

This is the simplest finishing process at first glance. But he has a few points to consider:

Traditional cement plasters not suitable for finishing aerated concrete. The latter will instantly absorb moisture from the solution due to its high moisture absorption rate. Therefore, the applied plaster layer will become cracked or even peel off. No primer will help here.
For finishing facades made of aerated concrete blocks, special plaster mixtures have been developed based on additives that prevent moisture absorption. Manufacturers write this on their packaging – for aerated concrete blocks.
External finishing of walls from the outside is associated with the preparation of the surface to be finished. Aerated concrete is also prepared. Only for this purpose special primers for aerated concrete are used.

The plastering process itself is standard. It includes the installation and fastening of the plaster mesh. This element cannot be avoided because aerated concrete blocks have a very smooth and even surface, so that its adhesion to the plaster mortar will be minimal. The mesh enhances traction. Beacons must be installed in the form of metal profiles, between which a plaster solution is applied.

As for finishing, in terms of using plaster, you can approach the issue from different positions. For example, paint with facade paints, or use decorative plaster, which contains mineral additives in the form of stone granules, glass beads and others decorative materials. Today, bark beetle is a popular decoration for exterior walls.

Brick cladding

Cladding a house made of aerated concrete with brick is another traditional way of protecting porous material. Here are the advantages of this option:

brick is a durable material with good sound and heat insulation characteristics;
it has a high load-bearing capacity;
appearance– presentable;
easily withstands the negative effects of precipitation, sunlight and wind.

But the cladding process itself is not so simple compared to plaster. This requires experience and qualifications. And if they assure you that the process of brick cladding can be done with your own hands, do not believe it. After all, masonry is not only about laying bricks beautifully, you need to achieve flexible connections for facing bricks and aerated concrete. And this requires experience.

It should be noted that brick cladding is a huge opportunity for decorative design of the facade of a house made of aerated concrete blocks. And each of them will be unique. Another disadvantage of this type of finishing is the high price compared to plaster.

If there is a need to increase the thermal insulation properties of an aerated concrete structure, you can use the technology of brick cladding a house made of aerated concrete with insulation. This technology does not shine with variety. Typically, thermal insulation material is added to the masonry mortar - perlite or vermiculite, and rarely expanded polystyrene chips.

Attention! Brick can be used for cladding buildings made of aerated concrete blocks only in private housing construction with a height of no more than two floors. In this case, the use of plaster mesh is a prerequisite.

It is necessary to say separately about the plaster mesh. This reinforcing belt must be installed on walls if their finishing involves wet technologies.

Clinker and porcelain tiles

Both materials differ strikingly from each other not only in performance characteristics, but also in appearance and price. But the technology for laying them on walls is the same. It’s hard to say which is the better cladding of the two. It all depends on the taste preferences of the owner of the house. Just note that clinker tiles have a small amount of decorative design. In this regard, porcelain stoneware is represented on the market in a huge variety.

The technology itself for cladding a house made of aerated concrete with clinker tiles or porcelain tiles is no different from each other. It is simpler than brick and cheaper. Both tiles are thin material with low weight, which reduces the load on the foundation. They have higher strength characteristics than brick. Easily withstand natural stress.

If we talk directly about laying clinker tiles on aerated concrete (and porcelain stoneware, respectively), then, as mentioned above, a mesh (preferably synthetic) is first installed on the wall, which is secured in the aerated concrete wall with self-tapping screws or nails. Fortunately, concrete allows you to do this without drilling mounting holes. As masonry mortar They use a special mixture designed specifically for aerated concrete surfaces.

But there is one difference between the two tiles. The clinker room has small sizes, so it's difficult to work with. Porcelain tiles are large in size, so installing them on the wall is a more simplified process. Today, the technology for wall cladding with dry porcelain stoneware is presented on the market. This is when the tiles are laid on the sheathing. This option is much simpler if we talk about doing it yourself.

By the way, when the task is to insulate and cladding the facade with porcelain stoneware, then this technology is optimal solution. In this case, the tiles cannot be laid on aerated concrete. An air gap remains between it and the walls, which can be filled with thermal insulation material. This technology is not only easier to implement, it allows you to repair the cladding without dismantling a large amount of cladding material.

Clinker tiles are laid on aerated concrete only using wet technology.

Siding

We move on to finishing the façade aerated block using dry technologies. A prominent representative of this category of finishing materials is siding: plastic, metal, ceramic, cement and wood. When the question is asked how to finish aerated concrete house with your own hands without complex construction operations, then covering the building with siding is just that.

Each type of this finishing material has its own pros and cons. For example, metal, cement and ceramic are 100% fireproof. Vinyl siding comes in a huge variety of decorative designs. Wooden is natural beauty tree structures. Although today new technologies make it possible to design all types of sidings to match almost any natural materials.

A separate group includes thermal panels manufactured as decorative thermal insulation material. The outer layer is a tile: clinker or stone, the back layer is insulation, and between them there is a base in the form of an OSB board.

It should be noted that all of the above materials belong to a large group of ventilated facades. That is, these are exterior finishing options that are not attached to the wall being finished. To do this, a frame is assembled from a metal profile or wooden slats, on which the panels are attached. There remains a gap between the finishing and the aerated concrete wall, which in this case serves as ventilation. Coming out through the blocks interior spaces warm and humid air is immediately removed through the gap outside the finishing structure. It turns out that moisture will not condense on aerated concrete walls, which means they will last a long time.

How to properly install a ventilated facade.

The frame is assembled in the form of vertically installed profiles, the distance between which is determined by the length of the siding. For example, the standard metal material the length is 3 m. This means that the installation of frame elements is carried out either after 0.5 m or after 0.6 m.
Profiles must be installed around the perimeter of window and door openings.
If aerated concrete sheathing is carried out with insulation, then after assembly frame structure it is necessary to lay thermal insulation material. Depending on the chosen type of the latter, additional tasks related to the protection of insulation are solved. This mainly applies to mineral wool, which must be covered on the back side with a waterproofing film, and on the front side with a vapor barrier membrane.

Attention! Since a ventilated facade is being assembled, a gap must be left between the insulation and the surface of the aerated concrete wall.

The siding installation process itself is no different. To do this, mounting holes are made in the material at the factory, through which it is attached to the frame. The main thing is to install the panels exactly horizontally. Panels of all types of siding are connected to each other using a tongue-and-groove lock. This is not only a strong bond, but also an invisible seam, plus ease of installation.

Lining

This wood cladding material can be classified as siding. Although in the register of building materials it appears as a separate group. What can you say about lining on aerated concrete? There are no restrictions in its use for cladding aerated concrete house No. This material belongs to the technology of ventilated facades. Therefore, it is mounted on a frame sheathing, like other types of siding.

But there are some requirements for it:

mandatory treatment with an antiseptic and anti-feather composition;
selection of dry lumber for both the frame and cladding;
external protective painting or varnishing from negative impact atmospheric precipitation;
optimally - if the roof of the house is made of aerated concrete with a large cornice, which will cover the walls covered with clapboard.

With wet technologies everything is clear; they require special adhesive compositions. But it is necessary to warn that aerated concrete is not as durable a material as concrete or brick. Therefore, to install ventilated facades, it is necessary to use special dowels as fasteners, which are specially made for cellular concrete.

They are made of plastic (PE, PP or nylon) or metal (galvanized or stainless steel). According to the installation method, dowels are divided into driven and screwed. The latter are considered more reliable and are divided into straight and conical. A separate group are chemical anchors, which are liquid polymer compositions, poured into prepared mounting holes in aerated concrete, where they polymerize.

An unfinished aerated block house looks quite presentable if adhesives are used to lay the blocks. The seam between them is small - up to 2 mm, so the appearance looks like a monolithic one. But a gas block with cladding will last longer.

The cheaper the finish, the shorter its service life. In this regard, brick, clinker and porcelain stoneware are the best materials for finishing the facade of a house made of aerated concrete.

It is better to finish a bathhouse made of aerated concrete with clapboard or siding. It will leak through the walls a large number of humid and warm air, so for this building best option- ventilated facade.

When cladding a house with your own hands, take into account the installation technology of the selected material. Strictly follow the rules and requirements of the manufacturers.

When deciding how to cover a building made of aerated concrete blocks, consider all the pros and cons of the selected material. Price will not be the last selection criterion.

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

Features of houses

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

The main function of aerated concrete is insulation, but if you incorrectly calculate the thickness of the walls, you will need an additional layer of insulation 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 appearance, as well as protect the aerated concrete from high atmospheric humidity, water, frost and ultraviolet radiation.

Note! Before you begin finishing the exterior walls of the house, you need to complete the interior work.

Why is exterior decoration necessary?

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

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 that air circulation is not disrupted.

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

Note! The layer of clinker tiles should not protrude beyond the foundation or be close to each other, therefore, when forming, additional centimeters for exterior finishing are taken into account, especially when we're talking about about the strip foundation.

Siding

One of the modern finishing materials is siding. Manufacturers make siding with various surfaces, which imitate natural materials, for example, 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 they are used as soft ( mineral wool), and solid (foam) insulating materials. Affordable price complements the list of advantages of this finishing option. It is worth noting that for installation there is no need to involve professionals, since all the work can be handled independently.

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 strong protection of the house from cold and humidity, then you can consider finishing the walls from aerated concrete, which is 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 using special glue and trellis dowels. Then all seams between the sheets are puttied and secured 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 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 ordinary 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 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 method today is finishing with decorative slabs, the surface of which imitates tile, stone, wood and other materials. The fastening of the panels must be carried out exactly according to the instructions from the manufacturer, otherwise the strength will be impaired even after several years. decorative wall will crack or sag, and cold will begin to penetrate through the cracks.

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

In the last 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:

large assortment of colors, textures, sizes;
light weight;
ease of installation;
minimal load on the foundation;
high mechanical strength.

When finishing 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 covered with paint to match the panels. To create ventilation, a gap of 3–4 cm is left between the walls. Also, when installing slabs, a distance of 1 cm is left between each element on all sides, which is then filled with a special sealant.

Note! Wall finishing with modern fiber cement panels should be done on a flat and even surface, so all old finishing elements are dismantled, along with window sills, lanterns, and holders.

Modern and versatile construction material aerated concrete needs additional protection from atmospheric influences. It is worth considering all finishing options.

The process of finishing the building outside begins immediately after finishing work inside the premises. It is necessary to strictly adhere to the technology of work. Facing is performed using one of the following methods:

painting using special paint for facade work;
plastering with compositions for lightweight concrete;
ventilated facade using various facing materials (for example, siding or block house);
construction of a multilayer wall with an outer verst made of face brick.

Exterior finishing options

Plastering and painting

When choosing compositions for facade finishing, it is necessary to take into account the vapor permeability of materials. The hygroscopicity of block walls is quite high level. They are able to accumulate moisture, which comes from the room in the form of steam. If the cladding has low vapor permeability and does not allow steam to escape, the walls will be damp. Water in the wall pie will ultimately lead to a decrease in its thermal conductivity, the formation of mold and mildew, and a violation of the load-bearing capacity.

The following are NOT suitable as compositions for façade finishing:

sand-concrete plaster;
covering film-forming paint.

Finishing a house made of aerated concrete can be done using the following types of plasters:

silicate;
silicone;
mineral.

The last option requires additional work for painting the façade from the outside. The advantage of the material is maintainability.

Work on painting or plastering block walls is carried out only after the complex preparatory work. The following set of activities is required:

cleaning the surface from dust and various contaminants;
eliminating minor masonry defects using aerated concrete adhesive;
leveling the surface with special compounds;
priming the walls with a layer of 2-3 mm (it is better to choose compounds with strengthening functions and protection from atmospheric moisture).

The smoother the surface becomes as a base for painting or plastering, the less mortar will be required to line the outside of the block walls. Materials for finishing aerated concrete facades are relatively expensive, so it is necessary to try to reduce their consumption as much as possible.

When finishing walls with plaster, it is sometimes necessary to use a special reinforcing mesh. You need to choose one that is resistant to alkalis. The cell dimensions are assumed to be approximately 3 mm. The following recommendations can be made regarding reinforcement:

if the total thickness of the plaster layer does not exceed 10 mm, additional reinforcement is not required;
when the plaster thickness is 10 mm, fiberglass is used for reinforcement;
the thickness of the finishing layer is 15-20 mm, requiring the use of a metal painting mesh as a reinforcing metal mesh.

Applying plaster in a layer of more than 20 mm to aerated concrete is not rational.

The reinforcing mesh is applied to the primer layer before it hardens. Use a spatula or grater to press it into the solution. The surface is leveled and left to dry. After drying, begin applying the required thickness of plaster. It depends on the levelness of the base.

Ventilated facade

Finishing a house from aerated concrete using ventilated facade technology allows you to simultaneously perform cladding and insulation. Such options are especially relevant for buildings located in server regions, where even blocks with good thermal insulation performance do not pass the heating engineering standards.

Mineral wool is used as insulation. It does not interfere with the removal of moisture from the walls. But the heat insulator itself needs protection from moisture. Used for condensate drainage air gap ventilated with outside air. Its thickness is usually 40 mm. In the cornice area there is ventilation holes to exit humid air.

The basis for fixing the insulation and material for finishing the walls made of blocks is the frame. It is made from wooden blocks or light metal profiles. Wood must be treated with antiseptic compounds. They prevent the appearance of mold and mildew and rotting of the material.

The external sheathing to the aerated concrete facade is attached to:

long-length self-tapping screws (use black ones as they are more durable);
dowels with plastic stopper length not less than 30 mm;
special dowels for aerated concrete.

The latter option is preferable because it provides reliable fastening without cold bridges. The most undesirable method of fastening would be self-tapping screws, but if there are no other options, they are used.

It is recommended to use a spacing of 40 or 60 cm for installation of frame racks for aerated concrete. But exact dimensions depend on the width of the insulation. In order not to cut the material lengthwise, it is necessary to take into account the dimensions when assigning the distance between the frame elements.

After the base (guides and sheathing) under the cladding is secured to special dowels, the installation of insulation begins. It is mandatory to provide waterproofing over mineral wool.

The waterproofing material must not allow atmospheric moisture to pass through, but have high vapor permeability.

To finish walls made of aerated concrete blocks, it is reasonable to use special vapor diffusion membranes. They do not interfere with the removal of moisture into the ventilated layer from the insulation side. Waterproofing membranes also provide wind protection.

Option for finishing the ventilation façade with fiber cement panels

After securing the insulation and insulation, they begin to hang finishing materials. The following can be used as facade cladding:
block house;
siding;
lining;
fiberboard;

ready-made facade systems. Fastening of materials to the insulation frame is carried out in accordance with the manufacturer’s instructions and for different types

may vary.

Brick facade finishing For reliable protection For block wall materials, it is better to use facing bricks to protect against external atmospheric influences. Typically, ceramic material is used.

In general, a two-layer wall is made with a ventilated layer inside. The width of the gap for air circulation is taken to be at least 30 mm; the optimal thickness will be 40 mm. At the bottom of the wall there are special openings for air intake (vents), which are protected by ventilation grilles from clogging. In the area of the building's eaves (or parapet when using flat roof

) provision is made for the release of moist air. Brick is a fairly heavy material for making facade walls. This type of finishing must be taken into account when designing foundations. When used for an existing building, it is better to first strengthen the supporting part of the house from blocks. Also, the width of the foundations is determined taking into account the thickness of the wall with brick cladding

. Brick overhang of more than 30 mm is not allowed. For joint operation of external and internal versts, special flexible connections are used. They are laid in aerated concrete at the construction stage. Instead of flexible connections, thin connections can also be used. metal plates . It is important that the elements are made of steel with an anti-corrosion coating; the most common option is stainless steel.

Galvanized bonds in an alkaline environment are destroyed quite quickly.

Properly executed finishing of the façade walls will reliably protect aerated concrete from external influences. It is necessary to strictly comply with the requirements for materials and the technology of their use.

Aerated concrete blocks are a warm and breathable material. In addition, they are highly hygroscopic and well absorb all moisture that falls on them. That's why for different rooms for a house built from aerated blocks, you need to choose the right Decoration Materials.

Interior decoration for aerated concrete must have sufficiently high air permeability so that, together with load-bearing walls maintain a comfortable microclimate in the house. However, the chosen exterior finishing option should be taken into account. If aerated concrete and its coating will allow a large volume of moist air to pass through, and external cladding turns out to be impenetrable to it, there is a risk of water accumulation inside the porous aerated blocks.

It should also be remembered that vapor-permeable materials are very often permeable to water. To prevent aerated concrete blocks from becoming saturated with moisture in wet rooms, under some types of finishing it will be necessary to lay insulating membranes leaving air gaps. And they, in turn, are led to common ventilation ducts.

Review of popular finishing materials

Wood

The ideal option for creating an eco-friendly home is natural wood. The interiors, completely made in wood, look very nice and cozy. Finishing walls made of gas silicate blocks with an imitation of profiled timber or a block house will make the cottage look like a wooden frame.

TO budget options include lumber from pine or spruce. Such light wood looks simple, but aesthetically pleasing, plus it fills the air with useful phytoncides. However, clapboard finishing, even inside the house, requires protection from rotting and drying out. Therefore, wooden slats will have to be impregnated with an antiseptic composition and covered with either paint or varnish. So you shouldn’t count on the smell of a coniferous forest.

The least capricious is eurolining, which has already undergone all stages of protection from external influences during production. It can be used for interior lining without paint coating.

What are the benefits of finishing walls made of aerated concrete? natural wood, so these are similar properties of materials. Both wood and cellular blocks are porous, allow air to pass through well, and do an excellent job of insulating a home. By maintaining the layer between the sheathing and the walls (due to the lattice of the frame under the lining), it turns out additional insulation walls No other materials are required. But such a “pie” is very sensitive to the outer cladding - a ventilated system must be installed on the façade.

Plaster

Internal cladding of aerated concrete blocks with plaster allows you to obtain a perfectly smooth or patterned relief surface of the walls using leveling and decorative mixtures. But heavy compositions based on sand and cement are not suitable for this purpose, since aerated concrete blocks cannot withstand their heavy weight.

For cellular concrete, special gypsum and lime thin-layer compositions are produced, for example: Osnovit, Pobedit Egida, Vetonit. This plaster is easy to apply, adheres well to aerated concrete and has sufficient vapor permeability. But for finishing rooms with high humidity It is better not to use plaster or use it as a façade mixture. Wet plaster requires compliance with preparation technology aerated concrete masonry, especially paying attention to the soil.

After applying the starting mixture finishing turnkey can be done with anything: wallpaper, paint, decorative compositions. Paint in at least 2-3 layers. Moreover, each subsequent layer should be applied with movements perpendicular to the previous one. Then the interior decoration will be uniform, with a rich color.

Tile

Ceramic tiles create a vapor- and waterproof coating inside the house. But it must be laid on aerated concrete using a special glue, not a solution. Tiling over aerated blocks is allowed and even encouraged, but only in rooms with high humidity. In the bathroom, a continuous adhesive layer under the tiles will protect the aerated concrete from getting wet and subsequent destruction.

When choosing this method of finishing, you should think in advance about organizing a sufficiently powerful structure in the room. forced ventilation. Otherwise, the room will turn into a non-drying thermos - ideal conditions for the development of fungus and mold.

Plastic

You can also use plastic cladding for the bathroom. This can be a very reliable finish with imitation timber or flat vertical panels. But underneath them you will need to lay impenetrable waterproofing, since the stacked lamellas can allow moisture to pass through to the aerated concrete.

Internal plastic trim It will also help out where there is not enough money for natural finishing materials. Instead of lining from natural wood You can use artificial one. Just keep in mind that cheap panels, although they are not afraid of excess moisture, do not tolerate critical temperatures well and their sharp changes. Therefore, the inside of a vestibule or balcony made of aerated blocks must be lined with plastic with caution.

However, plastic lining is perfect for covering ceilings. Especially if you are decorating a turnkey house made of aerated concrete in a country style, where all surfaces should, in theory, be covered with wood.

Fake diamond

This type of cladding is just gaining popularity, but due to its practicality it is increasingly of interest to private developers. Most often, artificial stone is used in interiors to create decorative inserts, decorating internal corners, baseboards or doorways, since a wall completely covered with imitation stone does not allow steam to pass through well.

The main thing is that for aerated concrete, artificial stone must be chosen from lightweight materials:

hypertufa,
lime-based artificial travertine,
any plaster imitations.

Interior decoration of wet rooms with artificial stone requires additional protection with special water repellents for interior work. This could be Bionic impregnation (450 rubles/l) or a cheaper CTX composition from the Moscow company Stroytekhnokhim (85 rubles/l).

Drywall

If a house made of aerated concrete was built conscientiously, and the masonry turned out to be smooth, the sheets of plasterboard can not be screwed to the slatted frame, but glued directly to the walls. This will reduce the time finishing works and will save useful space in the interior. But even problematic masonry can be leveled without problems using drywall. It’s not for nothing that gypsum board is called dry plaster.

The wall panels are only 12mm thick, and the ceilings can be clad in cheaper 9mm sheets. For a kitchen made of aerated concrete blocks, it is better to take a special moisture-resistant or even fire-resistant type of gypsum plasterboard.

This wide range of cladding options, as well as the easy workability of plasterboard, allows for interior finishing throughout the entire home. And then glue the wallpaper, apply decorative plaster or bright paint- whatever your heart desires.

Previously, the scope of application of gypsum boards was not so wide - cardboard with a gypsum layer is difficult to classify as reliable materials. But with the advent of new and improved types of drywall, there are practically no restrictions on their use. The only caveat is the interior decoration unheated premises in a house made of aerated blocks does not allow the use of conventional gypsum boards.

When choosing and performing the exterior finishing of a house made of aerated concrete blocks, it is worth taking into account the properties of this material so that the cladding does not contribute to the deterioration of the technical characteristics of this material. Since aerated concrete belongs to the category of cellular lightweight concrete, it has high thermal insulation characteristics, but this material absorbs moisture quite easily, so the exterior decoration of the house must reliably protect wall structures from atmospheric moisture and the formation of condensation. In our article we will list all the finishing options for an aerated concrete block.

Features of the material

When choosing the finishing of a house made of aerated concrete, it is worth considering specifications and properties of this material. So, its advantages include the following:

Because the specific gravity aerated concrete is small, when arranging a house you can get by with a lightweight foundation. In addition, the laying of wall blocks can be done independently without the use of construction equipment. Due to its light weight, transportation of this material is facilitated.
Cellular concrete is an easy-to-work material. Blocks can be cut and drilled hand tools. Right on construction site the block can be given the required form. In addition, in an already constructed building, you can easily tap walls for laying communications.
High thermal insulation characteristics material lead to the fact that a wall with a thickness of 200 mm is equal in thermal conductivity to brick wall 500 mm thick.
Since the structure of the material is porous, a favorable atmosphere for humans is formed in the house due to air microcirculation and humidity is regulated. With this property, aerated concrete is very similar to wood.
A building made of aerated concrete can rightfully be considered environmentally friendly housing.

When choosing how to decorate a house made of aerated concrete blocks, you should take into account the disadvantages of the material:

The main disadvantage of this product is its increased fragility. The blocks do not withstand shock loads well, and their compressive strength is low. If the block falls during transportation, it is likely to split or crack.
High hygroscopicity means that the material actively absorbs moisture both through direct contact and atmospheric moisture from the air. At the same time, the product becomes heavier, its thermal insulation characteristics deteriorate, and its strength decreases. A wet block may collapse after freezing. During the masonry work the block quickly absorbs moisture from the solution, which reduces the elasticity of the mixture and makes it difficult to work with.

Important: as you can see, the shortcomings of this material confirm the fact that walls made of aerated blocks are a rough option that requires immediate external and internal finishing. Next we will look at the most suitable options external cladding of aerated concrete walls.

Clinker

Clinker brick is a high-strength material made from special slate clay. A house lined with clinker tiles takes on a finished, respectable appearance. Clinker contains oxide dyes and additives. The mixture is passed through an extruder. The flat blank is then cut into individual tiles. They are fired in a tunnel kiln at a temperature of 1300°C. As a result, the material acquires the following characteristics:

high frost resistance;
excellent fire resistance;
the product can be given any color and texture;
the material has high strength;
tiles are considered environmentally friendly;
clinker is resistant to sunlight;
it is a chemically neutral material;
durability.

The main advantage of external finishing made of clinker bricks and tiles is the variety of shapes, textures and colors of the products. As a result, you will be able to realize any architectural idea in facade decoration, make columns, decorative elements, arches. From clinker you can make not only the outer layer of the house, but also a fence, a gazebo, a canopy, a barbecue, and a fireplace inside the house.

Advice: if it is very important for you to decorate the facade, then better material You won't find anything better than clinker tiles.

However, any material has disadvantages and clinker is no exception. Due to its increased density, it has high thermal conductivity, so it is advisable to additionally insulate the walls of the house before cladding. The second disadvantage is the high price.

There are two ways to tile a house with clinker tiles:

If you want to additionally insulate the facade, then first slabs of thermal insulation material, for example, polystyrene foam, are attached to the walls. Then a vapor barrier membrane is fixed on top of them. It will protect against moisture and condensation. After this, clinker brick cladding is performed at a short distance (3-4 cm). The facing layer must be connected to the aerated concrete masonry walls using anchors, clamps, long nails or dowels with wire. The installation step of these elements is 0.5 m.
If the thickness of the aerated concrete walls is sufficient, then additional insulation will not be needed. In this case, clinker tiles are laid close to the walls. Elements for connecting the cladding layer to the walls can be laid during the process of aerated concrete masonry or installed later during the cladding process.

Plaster

If you decide to plaster the outside of a house made of aerated concrete, then you should know that the finishing process will consist of several stages. The final result depends on the quality of each of them. Thus, the process of plastering aerated concrete walls includes the following steps:

First, thermal insulation material (foam or extruded polystyrene foam) is attached to the walls. Usually, a special adhesive composition and dowels with caps. This layer will increase the thermal insulation of the house, protect against noise and atmospheric moisture.
After this, using the same glue, a reinforcing fiberglass mesh is attached to the insulation. It is needed to improve the adhesion of the finishing layer to the heat-insulating material.

Attention: when choosing a mesh, you should give preference to products made from chemically neutral material. This will protect the facade from the appearance of traces of rust.

Now you can begin to apply the finishing plaster layer. For better adhesion, the surface of the previous layer is primed with a special compound. Next, the facade is plastered using quality composition with antiseptic additives. After this, the surface of the walls is painted with facade paints.

Vinyl siding

Facing material such as siding is quite popular. On sale you can find cladding panels made from different materials(metal, fiber cement, vinyl, wood). The most popular because of its reasonable price and ease of processing is vinyl siding.

The advantages of this material include the following:

Affordable price.
Simplicity and speed of installation.
Durability.
Easy to care for. The facade can be washed with water from a hose.
High moisture resistance.
Resistant to fading, damage by microorganisms and insects.
A large selection of colors and textures, which allows you to choose the right product. In addition, several colors of material can be used in the cladding of one house, which will diversify the facade and give it expressiveness.

However, if you decide to cover your house with siding, it is important to adhere to the rules for installing this product. Otherwise, the panels may fail, they may burst or become deformed. The thing is that the material can expand and contract under the influence of temperature changes. Magnitude of change linear dimensions reaches 1%.

Installation vinyl panels performed in this order:

Before covering a house made of aerated concrete with siding, special brackets must be secured to the walls. Only on them can panels be mounted.
Before installing the guides, the walls of the house must be protected from moisture. To do this, a vapor barrier membrane is attached to them.
After this, the guide profiles are attached.
External vinyl corner profiles are then installed on the corners. Special profile components are installed around windows and doors. The starting profile is fixed at the bottom of the facade, and at the top of the walls - finish bar or internal corner.
If the siding length of 3.66 m is not enough to cover one facade in length or height, then a joining profile is additionally used.
After this, installation of the panels begins.

Attention: to compensate for temperature deformations, the siding is attached with a gap of 1 cm at the ends from the additional profiles. In addition, for free expansion and contraction, the material cannot be screwed too tightly to the guides. Self-tapping screws can only be screwed into the center of the oblong hole on the panel.

It is also worth remembering that for ventilation of the building walls, vinyl siding is not attached closely to the facade. Be sure to leave a gap of 3-4 cm. If desired, the walls of the house can be insulated. The insulation is placed between the frame guides. Then a vapor barrier membrane and again guide profiles are attached on top of it. This is the only way to ensure the required ventilation gap.

Brick

Cladding a house made of aerated concrete can also be done using facing bricks. This material has extensive color palette, which will allow you to use it for home decoration successful combination of two colors. For wall cladding, it is better to choose not ordinary ordinary bricks, but special finishing bricks. It has the correct shape, a smooth surface without defects and a reduced width, which will reduce the load on the foundation. Due to their high density, these products have improved technical characteristics.

For cladding the house you can use silicate or ceramic brick, as well as products obtained by semi-dry hyperpressing. The latter option is more expensive, but allows you to achieve better results due to extensive color range, variety of shapes and textures.

There are two ways to cover aerated concrete walls with facing bricks:

Close to the walls. In this case, when making masonry from aerated blocks, it is worth laying anchors in advance to perform the dressing with the facing layer. If desired, you can lay thermal insulation material between the aerated concrete wall and the facing layer.
Ventilated facade. This finishing option will not allow the walls of the house to become damp due to the accumulation of condensation in them. In this case, a layer of facing brick is laid at a short distance (3-4 cm) from the surface of aerated concrete walls or heat-insulating material covered with a vapor barrier membrane.

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