Interior decoration of aerated concrete house

How to choose cement plaster

1. Decor vinyl wallpaper
2. Plasterboard finishing
3. Wood trim
4. Decorating with ceramic tiles

Before talking about what the interior decoration of a house made of aerated concrete can be, let's figure out the intricacies of the material itself, from which the structure was erected. It is characterized by significant vapor permeability. This suggests that the warm air from the room quickly evaporates and inside the building its temperature becomes close to the outside. Note that in warm air, the content of water vapor is quite significant, therefore, when it cools, condensation forms inside the wall, which increases the humidity.

To avoid such a development of events, it is necessary to reduce the vapor permeability of the bases. In addition, it should decrease from the outside to the inside. This suggests that the vapor transmission coefficient of the outer skin should be higher than , and the one inside - below.

Thus, studying the procedure for interior decoration of aerated concrete house, we see that initially it is necessary to take care of reducing the steam conductivity. This can be achieved by installing a vapor barrier layer. This condition is mandatory for all cases, regardless of the facade decoration plan and the presence of its insulation.

The easiest way to reduce the porosity of the wall from the inside is

this is to soak it with a special primer, and then apply a layer of cement plaster. Here, the stages of interior decoration of a house made of aerated concrete will look like this:

• cleaning the walls from dust and dirt, ensuring good penetration of solutions with which further processing will be carried out;
• impregnation of the base with a deep penetration primer. It is applied in 2-3 layers, while each of them must be given time to dry;
• application of cement plaster with minimum vapor permeability, leveling of the base. The moisture-resistant modification should be used only in rooms with a high level of humidity, for example, in a bathroom or a toilet;
• after the leveling mixture has dried, another priming stage is performed;
• finishing treatment. It is recommended to choose materials with low vapor permeability here. These are vinyl wallpapers, ceramic tiles, etc.

Having considered the basic sequence of interior decoration of aerated concrete house, we will learn how to determine the appropriate means.

Interior decoration of aerated concrete house: choosing cement plaster

It is applied to a primed wall, therefore, it must have the necessary performance properties. Of course, you can prepare the composition yourself by mixing cement, sand and water in the required proportion. But, it is better to give preference to factory dry mixes, because they contain additives that improve quality and properties. With the help of additional components, it is possible to achieve:

• creating an obstacle to the ingress of moisture into the aerated concrete base;
• improved adhesion to the base surface;
• increasing the plasticity of the material, simplifying the work with it;
• optimal setting time of the solution;
• increased layer strength and maximum wear resistance.

When determining the best material among its many types, it is important to pay attention to the following features:

• composition, in particular, the number of additional components;
• purpose - here it is indicated which surfaces can be treated with the mixture;
• the consumption of the mixture and the finished solution;
• compressive strength;
• permissible ambient temperature when performing work;
• adhesion to the base - the higher it is, the better;
• vapor permeability - it should be as low as possible;
• permissible layer thickness.

By choosing a good composition, you guarantee the success of subsequent work, the thoroughness of the decorative finish, and a comfortable microclimate.

Now you can start considering the best options for materials that can be used to decorate the interior walls of a house from aerated concrete. There are several of the most common types, which have received the greatest popularity today.

Interior decoration of aerated concrete house: vinyl wallpaper

- quite a good choice for finishing work. They have two layers, therefore they are characterized by an enviable density. Due to its popularity, manufacturers offer a product in a wide variety of design ideas.

You can make sure that the choice is justified by examining the advantages of vinyl wallpaper as an option for interior decoration of a house made of aerated concrete:

• impressive strength, guaranteeing durability;
• density, allowing you to hide minor irregularities;
• resistance to substances contained in household chemicals - most wallpapers are washable;
• resistance to high humidity;
• the possibility of staining if necessary.

As for the workflow, there will be no particular difficulties here.

Vinyl wallpapers are glued, like ordinary wallpapers, but there are certain differences that must be taken into account:

• lay the strips end-to-end;
• the adhesive composition is best applied both to the wall and to the sheet;
• try to lay the strips exactly in their place; after gluing, it is impossible to drag the edges;
• it is imperative to squeeze out the air from underneath, if glue hits the adjacent strip, immediately remove it with a clean cloth, because it dries quickly and then does not wash off.

All that remains is to make a purchase and get to work. It is better to choose products from well-known, time-tested manufacturers, guaranteeing the desired durability to the result. To make it easier for yourself to make a decision, you can see a photo of the interior decoration of a house made of aerated concrete in this version. This will give you an idea of ​​how the different styling looks.

Interior decoration of aerated concrete house: drywall

Drywall and finishing work with it

used in the event that there are significant differences and it is impossible to level them with plaster. It fits quickly enough, has a low cost, and can subsequently be decorated with paint, interior mixture.

If we talk about the stages of work,

interior decoration of aerated concrete house with plasterboard is performed as follows:

• clean the walls from dust and dirt;
• install the crate. It is constructed from a metal profile, fixed on the base with self-tapping screws and dowels. The profile should be positioned so that a kind of lattice is obtained. The dimensions of the cells should not exceed 50x50 cm;
• if you need to lay insulation, it will be placed between the elements of the crate. For this purpose, sheet materials such as mineral wool, foam, expanded polystyrene or polyurethane foam are used. The insulation is fixed with self-tapping screws or anchors;
• now it remains to fix the sheets of drywall to the crate. Self-tapping screws with a length of at least 25 mm are used as fasteners;
• close the joints of the sheets with reinforcing tape. Then putty the seams.

There is a wide selection of drywall on the market, so it is important to be careful when buying. Sheets with a thickness of 12 mm are suitable. For the bathroom, you need to buy a moisture-resistant material.

Interior decoration of aerated concrete house: decorative wood cladding

The interior decoration of a house made of aerated concrete with wood is very popular today. It allows you to create a comfortable, warm and cozy atmosphere and looks very attractive. In addition, wood has a low thermal conductivity, which makes it possible to maintain the necessary microclimate in the room.

On the market, you will be able to offer a large selection of products based on natural wood:

• lining. It is represented by elements in the form of boards, which are interconnected according to the thorn-groove technology. This feature guarantees simplicity and efficiency of installation. The lining is made from different types of wood, which is recommended to pay attention to, because moisture resistance and durability depend on this. As for the laying of the boards itself, it is performed both horizontally and vertically;
• euro lining. More expensive, but its enviable durability and aesthetic appeal fully pay off the investment. Euro lining is produced in strict accordance with European standards, therefore, it is distinguished by increased strength, accuracy of dimensions and connections;
• block house is a high-strength material imitating timber. It is endowed with strength and resistance to negative external factors. Elements are connected by special technology of spike-groove locks, they are mounted quickly and easily. The finished result surprises with its aesthetics.

Such an interior decoration of a house made of aerated concrete with your own hands is very simple and easy, so it is not necessary to use the services of specialists.

Take, for example, a lining - a crate made of wooden bars will act as a basis. They are laid perpendicular to the direction of installation of the boards. That is, if you place the lining horizontally, install the lathing bars vertically. Step - 50-80 cm. If required, insulation is placed in the crate. Next, it remains to fix. Start at the bottom or top of the wall, securing the clapboard to the lathing with fasteners. After that, work continues with fixing the subsequent elements with locks and additional fasteners with self-tapping screws or nails without hats.

To make an invisible mount, you can use special brackets. Then the lining is laid from the ceiling. The staple is driven into the tenon at an angle of 45º with a special stapler, does not interfere with its entry into the groove. The aesthetics of this option reaches its maximum levels. This is the best interior decoration of aerated concrete country house.

When choosing a finishing material, you need to consider several important criteria:

• price;
• durability;
• aesthetic appeal;
• resistance to moisture and temperature extremes;
• vapor conductivity;
• ease of installation.

So you can make an informed and correct decision, make your home warm, comfortable and cozy. After looking at the photo, you will once again be convinced of the justification of the choice.

Interior decoration of aerated concrete house: ceramic tiles

It has a low vapor permeability, so it is often used when performing finishing work. Ceramics can be used to decorate a bathroom, kitchen, hallway, bedroom and even living room, because modern manufacturers offer a wide range of special collections. The main thing is to find the best option. For walls, buy tiles that are thinner; a more durable look is laid on the floor.

The decor is fixed to a flat surface with tile adhesive. Plastic crosses are installed between the elements to maintain the seam width. Laying starts from the floor. It is not difficult to complete the decoration on your own here, it is enough just to have basic skills. The result will please you with aesthetics and durability.

Features of the interior decoration of the walls of the house made of aerated concrete, gas silicate

Aerated concrete has high vapor permeability. This means that warm air from the room passes through the thickness of the wall and gradually cools down to the outside temperature.

In the warm air of the room, the content of water vapor is always higher than in the cold air outside.

As a result of air cooling in the thickness of the wall, water vapor condenses and the wall is humidified. The higher the vapor permeability of the wall, the more water condenses. To reduce the amount of water the vapor permeability of the wall must be limited.

In addition, water should not accumulate in the wall. For this, it is necessary that vapor permeability in the thickness of the wall decreases in the direction from the outer surface to the inner one. That is, interior decoration should have less vapor permeability than aerated concrete walls, and the exterior finish should be more vapor permeable than aerated concrete.

The air temperature at which water vapor condenses is called the "dew point".

The inner surface of the outer walls made of aerated concrete (gas silicate) blocks must be protected with a vapor barrier.

It is necessary to limit the vapor permeability of aerated concrete walls from the side of the room in all cases- both for walls with facade insulation, and without insulation, as well as with finishing or facing the facade with any material.

Reducing vapor permeability aerated concrete (gas silicate) wall is easiest and cheaper to achieve if the masonry is impregnated with a primer from the inside and a layer of cement plaster is applied:

• The surface of aerated concrete blocks is impregnated with a deep penetration primer in 2-3 layers.
• Cement plaster is applied to the wall, which has low vapor permeability. The surface of the plaster is also primed.
• For finishing, it is also advisable to choose materials with low vapor permeability, for example, vinyl wallpaper, ceramic tiles.

Aerated concrete (gas silicate) blocks D400 have a vapor permeability coefficient in a dry state of 0.23 mg / (m * h * Pa)... For cement plaster, this figure is 0.09 mg / (m * h * Pa).

Cement plaster for interior wall decoration made of aerated concrete

The main components of mortar for cement plaster are water, cement and sand. It is a traditional plaster that has been used in construction for a long time. When self-preparing a solution of cement plaster, prepare a mixture by volume from 1 part of cement grade not lower than M400 and 3-5 parts of quartz sand.

A solution for cement plaster of aerated concrete / gas silicate walls is prepared from a ready-made dry mix of factory production.

For plastering walls made of aerated concrete / gas silicate, ready-made dry mixes of a special composition based on cement are used

Plaster mortar for walls made of aerated concrete of good quality for a reasonable price can really be prepared only from factory-made dry mixes. At the plant, in addition to the main components, various additives are added to dry mixes that improve the properties of the mortar and the finished coating on the wall.

Prefabricated ready-made dry mixes, in addition to the main components, also contain additives that:

• keep water in the fresh plaster layer, preventing the passage of water into the wall material;
• increase the adhesion of the plaster to the base;
• increase plasticity and workability;
• adjust the setting time;
• prevent the appearance of efflorescence on the surface;
• increase the strength, crack resistance of the plaster layer.

At a construction site, when independently preparing a solution from individual components, as a rule, they do without these additives and get a solution that is not suitable for plastering walls from aerated concrete. Adhesion to aerated concrete of simple plaster mortars is very weak.

In addition, from the factory dry plaster mixture, a solution is obtained that is more homogeneous in composition and properties. When making a homemade mortar from individual components, each batch in a concrete mixer will differ in composition and properties. Every time when loading into a concrete mixer, builders will not measure the components "like in a pharmacy". In addition, the materials purchased for the preparation of the solution may not be of adequate quality.

Ready-made compositions of dry mixes are also distinguished by the method of applying the solution to the wall.- manual method or machine. Plastering mortars for the machine method are applied to the wall using a special unit.

Car plasters are of higher quality, contain more additives, and are easier to apply to the wall. They are more expensive than manual mixes.

Machine plasters work well for manual application, but not vice versa.

Properties and parameters for choosing cement plaster

The main properties and parameters by which plaster is chosen are usually indicated in the information on the package:

Plaster type- or the composition of the main components, for example, cement, cement-lime, thin-layer acrylic, etc.

Application- for what walls, foundations and conditions the plaster is intended, for example, facade for brick walls or for interior work and walls made of aerated concrete.

Amount in a package- weight of dry mix in a bag, weight or volume of ready-made solution in a bucket.

Consumption of dry mix or solution- indicated in kg / m 2 / for layer thickness in 1 mm. or in 1 cm... Using this parameter, you can calculate the number of packages that you need to buy for facade plastering.

Application temperature- ranges of temperatures and humidity of the outside air, within which storage and use of a dry mixture or solution is allowed.

Compressive strength- indicates the compressive strength of the hardened layer of plaster on the wall, unit of measure - N / mm 2

Adhesion- the strength of adhesion of the plaster layer to the base. Unit of measurement - N / mm 2(the higher the better)

Vapor permeability- vapor permeability coefficient, unit of measurement mg / (m * h * Pa)... The higher this indicator, the higher the vapor permeability of the plaster layer will be. In imported mixtures from the EU countries, vapor permeability is measured by the coefficient of resistance to diffusion of water vapor, denoted by the letter m(mu) and is always greater than 1 unit. The lower this indicator, the greater the vapor permeability of the plaster layer.

Thickness of the plaster layer- the minimum and maximum thickness is indicated for an individual layer or for the entire coating as a whole.

Depending on the type of plaster, the packaging also indicates other properties and conditions of use that are important for this type. More detailed information on the characteristics of the plaster composition can be obtained on the manufacturer's website.

When choosing a dry mixture of cement plaster for interior decoration of walls made of aerated concrete, it is necessary, first of all, to pay attention to the vapor permeability indicator. A composition with a lower vapor permeability should be chosen.... Unfortunately, domestic manufacturers do not always indicate this indicator on the packaging of dry mixes.

Properties of cement plaster

Properties of dry mix for aerated concrete wall plaster

Cement-sand plaster for aerated concrete walls has the following properties:

• High resistance to moisture.
• Good mechanical strength.
• Low vapor permeability of water vapor.
• Plaster cement mortar is less plastic, it is more difficult to apply and trowel, it sets faster, the hardened layer shrinks and for this reason often cracks if there are no appropriate additives in the composition.
• Cement-based plaster mix is ​​the cheapest.

The area of ​​application of cement plaster is determined by its characteristics.

Cement plaster usually used to level the walls of the foundation and basement which are always in high humidity conditions.

Cement plaster is applied to walls indoors in order to reduce vapor permeability, for example, when decorating walls from aerated concrete (gas silicate) blocks from the inside, as well as for decorating walls in wet rooms.

Consumption of dry mix of cement plaster 16 - 18 kg / m 2 / cm... Total thickness of a layer of cement plaster on the wall 20 - 40 mm. The thicker, the greater the resistance to vapor permeation the plaster layer possesses, the less water will be in the wall.

For plastering walls made of aerated concrete (gas silicate), do not add lime to the solution or use ready-made dry mixes for the preparation of cement-lime plaster. It is also not profitable to use gypsum-based plaster compounds. Cement-lime and gypsum plasters have a higher vapor permeability and are more expensive than cement plasters.

How to properly plaster aerated concrete walls

Cement mortars are applied to the base in succession in three layers:

1. Splashing- bottom layer 3 - 5 thick mm. A solution of a liquid consistency is thrown or rubbed into the base, which ensures better adhesion of the plaster to the surface.
2. Priming- a layer of plaster mortar with a thickness of 10 - 20 mm. evens out the wall surface and ensures the strength of the plaster layer.
3. Nakryvka- finishing layer 3 - 8 thick mm. rubbed over with a grater. Finally levels the plaster layer and prepares the surface for finishing.

On sale are ready-made dry mixes and liquid solutions, primers for surface treatment before plastering to increase the adhesion of the plaster layer. Such formulations are recommended be sure to apply on surfaces with low adhesion, for example, on concrete walls and cement slabs, as well as on aerated concrete (gas silicate) surfaces.

Walls treated with special solutions to increase adhesion are plastered without spraying - they immediately apply a primer, and then cover.

To prevent cracking of the plaster layer and increase the adhesion of cement plaster to aerated concrete, it is recommended to reinforce the bottom layer with plaster glass mesh.

For the device of the finishing layer - covers, you can use ready-made fine-grained cement-lime mixture, which allow you to get a smoother plaster surface.

When finishing walls with cement plaster, for finishing layer - coverings, often used or putties... This solution allows you to get a beautiful, textured and colored decorative surface for painting or smooth - for wallpapering.

Cement plaster dries within one to two weeks for every centimeter of thickness.

Wall decoration from the inside is performed in the following sequence:

• Dents and chips on the surface of the masonry are filled with mortar for laying blocks.
• Small irregularities on the surface of the walls and the seams between the blocks are leveled with a float.
• Remove the formed dust from the wall surface with a brush.
• A deep penetration primer is applied to the masonry in two or three layers with intermediate drying of each layer.
• The walls are plastered with cement mortar. As usual, three layers are successively applied to the wall - spray, primer and cover.
• After leveling with cement plaster, the surface of the walls is treated with a primer.
• To create a better surface for painting or wallpapering, modern thin-layer finishing compounds can be applied to a layer of cement plaster.

The finished walls are finished as usual.

There is little theoretical knowledge to perform plastering work. Long-term practice and the skill of the performer are of great importance to obtain high-quality coverage. To make the interior decoration in the house happy I highly recommend entrusting this work to specialists

Warm, lightweight and durable, quick to build and affordable, good noise and fire resistance. A house made of aerated concrete is the dream of many who think about their own home. Its brilliant characteristics are accompanied by vapor permeability of gas blocks and a negative ability to absorb moisture.

The porous structure allows warm air from the room to rush outside and, passing through the walls, cool there until condensation forms and the masonry becomes wet. Therefore, the decoration of aerated concrete walls requires a careful approach to consideration and is much more important than the cladding of any other material. In this situation, the interior decoration of the house simultaneously performs 2 tasks: it reduces the permeability of gas blocks and aesthetically decorates the rooms.

Requires special technologies for finishing, which will be discussed below. But first, it must be emphasized that interior decoration is carried out subject to the following conditions:

• completed works to protect the facade;
• a warm period of the year without precipitation has come.

A brief overview of finishing materials

The high porosity of gas blocks due to their low density requires the use of options that do not allow moisture to pass through, but at the same time contribute to the natural ventilation of the premises.

Finishing materials that can create a comfortable microclimate in a gas block house include:

• plaster solutions;
• plasterboard structures;
• lining made of wood;
• ceramic tile;
• wallpaper;
• dye;
• lining or plastic panels.

Let's consider the most popular ones.

1. Plaster.

Speaking of indoor plastering, it is necessary to clarify that there are 2 types of cladding: vapor-permeable and impermeable. The latter of them better maintains the properties of aerated concrete. At the same time, air permeability decreases, the movement of heat flows from the inside to the outside of the house. This is accompanied by the fact that constant uniform humidity is established (after a year and a half) and the interior and facade decoration is preserved. The dry concentrate of this mixture consists of sand and cement without any additives. But not all aerated concrete is suitable. For example, wall decoration made of gas silicate blocks does not allow such a plaster composition. In this case, only gypsum-based solutions are suitable, where the additional components are perlite sand and slaked lime.

Such material is vapor-permeable. It slightly reduces the useful characteristics of aerated concrete, but at the same time:

• its hardness and sound insulation increases;
• the durability of the cladding;
• increases the fire resistance of houses plastered with such a composition.

This plaster does not require pretreatment with a primer for internal aerated concrete walls. And surfaces can be leveled without putty. Decorative mixes help create patterned reliefs on the walls. Thin-layer lime compositions also belong to the same type of interior decoration. They hold well inside the gas blocks, are easy to apply and allow the walls to "breathe".

2. Drywall.

Many are attracted by its advantages drywall, as a versatile cladding structure for interior spaces. It can withstand relative loads and has a good thermal capacity. But sometimes, in the case of a harsh climate, insulation in the form of basalt or fiberglass plates with a vapor barrier layer is laid under the drywall sheets. They are fastened with an aluminum frame, and the foil is laid inside the room. Glue is used to fix the insulation.

With high-quality, even laying of gas blocks, drywall is not attached with a frame, but glued directly to the walls of the house. This allows you to reduce the time for interior decoration and save square meters. But also sloppy laid aerated concrete blocks inside the building can be hidden under plasterboard sheets for subsequent finishing work on a turnkey basis. Drywall, depending on the brand, can withstand a large amount of moisture and exposure to high temperatures without destruction.

3. The ideal decoration is natural wood.

Such cladding transforms the aerated concrete house into a wooden blockhouse and creates the impression of a cozy home. Moreover, it is not necessary to use expensive wood for this. Low-cost lumber, such as pine or spruce, look aesthetically pleasing, however, they do not fill the room with useful phytoncides. The clapboard cladding must be protected with an antiseptic and varnished to preserve the color of natural wood. Finishing in the form of Euro-lining is even more convenient, since at the production stage its surface is treated with special protective coatings.

Wood cladding in some of its characteristics is very close to aerated concrete, in particular, in the following:

• porosity;
• the ability to pass air well;
• high thermal insulation.

If a tree is used as a decoration, then a layer is formed between the frame under the lining and the gas blocks, which in itself is a heater and can not be filled with anything. But in this case, the outer cladding should be thought out, preferably in the form of a ventilated system.

4. Ceramic tiles.

Ideal interior steam and waterproof finishing of the building. Tile is the best protection of aerated concrete blocks from water penetration and subsequent destruction. Hence the purpose and use of ceramic tiles in appropriate conditions, the so-called "wet walls". To prevent high humidity and the appearance of fungi and mold in tiled rooms, it is strictly necessary to use supply and exhaust ventilation. Taking into account the properties of aerated concrete, this material is attached to the walls not with the help of a solution, but only with a special glue.

The most traditional, popular and economical option is to decorate the walls of the house with wallpaper, which can be either regular, vinyl or natural fibers. Before pasting, it is necessary to prepare a perfectly flat surface inside. First, aerated concrete blocks are plastered with a cement-sand mortar and primed with glue, which protects against dampness in the corners. As an adhesive base, special compounds are chosen that are resistant to moisture, mold and fungi.

6. Paint.

Painting walls made of aerated concrete requires no less careful preparation than wallpapering, that is, they also first plaster and ground the planes. For the interior decoration of the house, water-based paint is most often used. It is applied to prepared surfaces in 2 or even 3 layers. Moreover, the direction of the coating should be perpendicular to the previous one each time. This alternation ensures a uniform and beautiful finish.

7. Plastic.

Plastic panels are a modern, versatile, beautiful finishing material.

It is indispensable today in interior design, as it has many advantages:

• economical in cost;
• does not require preliminary leveling of the walls;
• installation is quick and easy, thanks to which the objects are delivered in the shortest possible time on a turnkey basis;
• creates any atmosphere, for example, an imitation timber finish is selected for decorating a room for a lining.

True, this material is afraid of critical temperatures and their differences.

What and where to apply?

The above overview of aerated concrete linings gives a clear picture of the use of these materials. So, if plaster mixes, depending on the composition, can be applied in residential and utility rooms, then decorating with ceramic tiles is possible only for interior decoration of sanitary facilities, baths and surfaces of kitchen "aprons".

The water absorption capacity of wood does not allow it to be chosen for such purposes. But finishing with clapboard corridors and hallways is very expedient and practical. But plastic panels, which are sensitive to temperature changes and are afraid of mechanical stress, have no place there.

Universal plasterboard can be used in bathrooms, as special brands are made for this, and in living quarters. Moreover, this material is suitable in the future for any finish. Almost as versatile are wallpapers, which have a huge number of types, which are used depending on the purpose of structures, including for wet ones, where painting is inappropriate.

There are many different methods and materials by which the interior wall decoration of gas silicate blocks is carried out. The choice of a particular technology is based on maintaining the vapor permeability of the walls. For this purpose, indoor aerated concrete walls are decorated with wallpaper, paint or sheets of waterproof drywall. In rooms with high humidity, tiles or plastic panels are used, but in all cases, first of all, all necessary measures are taken to ensure reliable protection against moisture.

Plastering

In contrast to the decoration of the exterior walls of aerated concrete houses, the interior decoration of aerated concrete walls can be carried out in accordance with the requirements and features of modern design, which allow leaving the surface without any topcoat and plaster. However, given that one of the most interesting types of interior decoration today is the application of decorative plaster for concrete, you can decorate the room inside with the help of ordinary plaster mixture.

The photo shows that the application of plaster to the surface of walls made of aerated concrete blocks does not differ from ordinary plastering.

When starting work, you should strictly follow the rules and the sequence of their implementation:

1. Aerated concrete walls are treated with a primer using a deep penetration composition and applying it in 3-4 layers. Each subsequent one is applied after waiting for the previous one to dry completely.
2. After completing the priming, they begin to install building beacons, and in some cases (with high quality masonry) they do without them.
3. Plastering of gas blocks is carried out using a gypsum mixture, distributing it along the wall using special equipment or manually.
4. Excess mortar is removed from the wall as a rule, achieving a smooth and even surface.
5. After completing the application of the starting (base) mixture, they begin to work with the finishing composition, and only after it has completely dried can one think about what the interior decoration will be.

In most cases, the outer walls of the building are insulated, and therefore the plaster mixture can be applied directly to the aerated concrete blocks.

The final stage of finishing can be surface painting, gluing vinyl or non-woven wallpaper, laying tiles or fixing decorative MDF panels. When choosing, you need to take into account the functional features of the room in which the renovation is being carried out.

Aligning the walls of aerated blocks with sheets of drywall

The interior decoration of walls made of aerated concrete requires preliminary high-quality insulation and reliable waterproofing, created using materials that do not reduce the vapor permeability of the aerated concrete blocks themselves and allow the house to "breathe". Aligning the walls with plasterboard allows you to place the material selected for insulation under the gypsum board, hide the wiring from prying eyes, give the room the desired shape and make its geometry special or even complex.

As shown in the photo, it is quite simple to sheathe a wall with plasterboard sheets if the frame is installed correctly and all the nuances of the technological process are observed during fastening of solid or cut sheets.

In accordance with the requirements of the technological process, the finishing work associated with the leveling of aerated concrete walls using gypsum board begins with the preparation of the surface, on which, as usual, a primer mixture is applied, after which they completely dry, they begin to assemble the frame:

1. The first grandfather needs to make markings on the floor and ceiling around the entire perimeter of the room.
2. The guide profile is fixed with dowels in accordance with the markings, first to the ceiling and then to the floor.
3. The next step is to install the rack-mount profiles. They are literally stuck first into the floor guide, and then the other end is carefully inserted into the profile fixed to the ceiling. The distance between such posts should not exceed 60 cm.
4. Next, the insulation is laid and the transverse jumpers are mounted at a distance of 40 cm from each other. Such a crate will reliably fix the heat-insulating material, guarantee the strength and reliability of the entire structure.

After completing the installation of the frame and laying the thermal insulation, you can sheathe the structure with sheets of drywall. First of all, solid sheets are attached to the profiles with self-tapping screws, and the trimming is completed with trims.

Finishing - painting, wallpapering, tile laying. Any option chosen will help to change the interior space of the apartment, create coziness and comfort, and the main advantage of this design is the ability to provide effective protection of aerated concrete walls from the negative effects of moisture and extend the life of the building.

Artificial stone finishing and other types of work

The peculiarity of aerated concrete is its high adhesion. Various finishing materials perfectly adhere to its surface:

• artificial and natural stone;
• plaster mix of sand and cement;
• gypsum plaster.

Before proceeding with the fixation of artificial stone, it is necessary to qualitatively prepare the surface of aerated concrete walls and eliminate all detected defects (chips, cracks, cracks). They are sealed with a cement-sand mixture, preparing the surface for leveling.

Before painting the plastered wall, several layers of putty must be applied to its surface. The starting, base and top coat are created by qualified craftsmen, but you can do all the manipulations yourself with your own hands. To do this, the instructions given by the manufacturers must be strictly followed. You can find information on the packaging of mixtures intended for puttying.

You can start painting after processing the putty surface with sandpaper and additional priming. The walls are impregnated with a primer twice, and they begin to paint after the surface has completely dried.

Finishing of aerated concrete walls of the building from the outside

There are many ways and materials by which the exterior decoration of the walls of a building, constructed from aerated concrete blocks, is carried out. Each of these methods has its own characteristic features, advantages, and features. Most often, brick is used to perform such work.

As you can see in the photo, this design does not have a high level of complexity, but it requires compliance with all the rules when performing masonry.

Aerated concrete wall cladding outside the house is performed by creating half-brick masonry and single-row dressing of the seams. Such cladding allows you to increase the level of strength of the entire building and give it an external appeal. Free space is left in the joints between the bricks without completely filling them with mortar. This provides ventilation and allows the home to breathe, preventing condensation from forming.

Binding of brickwork to aerated concrete walls is carried out using reinforcing rods made of galvanized steel. Despite the rather significant material costs, this method of finishing the outer walls of the building, erected from aerated concrete blocks, is very popular. This is due to the fact that the brick belongs to environmentally friendly materials, and, in addition, the space between the aerated concrete and the facing brick is filled with insulation, which provides additional heat savings and effective protection from cold.

When designing the facade of a building erected from aerated concrete, you should pay attention to materials such as:

• siding;
• decorative plates;
• natural or artificial stone;
• putty.

The building takes on a finished look, becomes resistant to the negative effects of aggressive environments and temperature changes.

Facing with siding or decorative plates involves the installation of a frame, which becomes a high-quality support for fixing not only the finishing elements themselves, but also insulation plates.

When starting to work on cladding with siding or decorative plates, it is necessary to take care not only of high-quality thermal insulation, but also of fixing waterproofing materials.

As a waterproofing, ordinary polyethylene film can be used, which is laid on a layer of insulation, and the gap between the insulation and the walls made of gas blocks is preserved for ventilation, which prevents the formation of condensation on the walls and their premature destruction or the appearance of mold and mildew.

This type of decoration of the outer walls of the building, erected from aerated concrete, is recognized as the highest quality and most effective. With such a facing, the walls of the house are reliably protected from moisture, but they "breathe" freely.

External finishing can be carried out using high-quality plaster, but carrying out such work requires careful surface preparation and the use of specially created materials.

The video shows how to correctly perform plastering work on the internal walls of a house if they are built of aerated concrete blocks.

Despite the fact that plastering work does not require significant material costs, you will have to be ready for a long process, during which you will need to conduct a thorough full surface preparation.

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Aerated concrete finishing - easy ways to apply inside and outside your home

Today you will learn about the features of interior and exterior wall decoration from aerated concrete blocks. I am sure that the topic of the article will be interesting, since aerated concrete is increasingly used in private construction. I will talk about the requirements for the choice of finishes and methods of finishing work.

Basic information about the building material

Aerated concrete is autoclaved aerated concrete made of cement, quartz sand, lime and gas-forming components. To reduce the cost of the finished material, a certain amount of industrial waste, such as metallurgical slags and ash, is added to the mixture during production.

Blocks made from such a mixture are characterized by low weight and low thermal conductivity in comparison with traditional ceramic bricks and reinforced concrete products. Well, as already mentioned, the finished material is distinguished by an affordable price, which has a positive effect on the cost of the construction object.

Continuing the topic of the performance characteristics of the building material, I would like to note the accuracy of the standard sizes and the accuracy of the configuration. That is, all blocks in the purchased batch will have the same shape, perfectly flat sides and right angles. As a result, the walls built from aerated concrete blocks are smooth and practically do not require additional leveling.

This advantage, again, allows you to reduce the cost of a construction project due to less used finishing materials and due to less time spent on finishing.

Now I will tell you about the distinctive property of aerated concrete blocks, which complicates the execution of finishing work. It is about the porosity of the material.

Despite the fact that the pores are closed and isolated from each other, the material has a high degree of moisture absorption. It is precisely this property that must be taken into account when choosing the methods of finishing.

Why is the degree of moisture absorption of the material so important? Indoors, especially if it is a bathroom or a kitchen, the air has a high moisture content, which sooner or later will penetrate into the thickness of the wall. What will happen next with this moisture entirely depends on what the house is faced with from the outside.

Aerated concrete blocks outside the house are finished with one or another airtight material so that moisture does not enter from the outside. And this is correct, but on the other hand, moisture from the inside must also disappear somewhere.

There are the following solutions to the problem:

• Ventilated facades;
• The choice of interior decoration of aerated concrete walls with a low degree of moisture absorption;
• Operation of an efficient supply and exhaust ventilation system.

The best results can be achieved if the listed items are implemented not separately, but in aggregate.

Finishing work in the interior

In order for the interior decoration of aerated concrete walls to be of high quality and durable, I can recommend the following methods of its implementation:

• Plastering with cement-based mixtures;
• Sheathing with wooden clapboard or plastic panels with preliminary laying of a vapor barrier or insulation;
• Sheathing with moisture-resistant plasterboard with preliminary laying of a vapor barrier;
• Facing with tiles, imitation bricks and other decorative materials with a low degree of moisture absorption.

Let's consider some of the listed finishing options in more detail. As a result, you will be able to decide which method suits you best.

Plastering walls with cement-sand mixtures

It does not matter with which mixtures the plastering is performed indoors, the quality of the finished result depends on the preliminary preparation of the aerated concrete blocks.

Aerated concrete quickly absorbs water, as a result, the gypsum putty on its surface will crack due to rapid drying, and the cement plaster will be loose. Therefore, at the preparatory stage, we cover the wall with a primer, and only then we plaster.

The main stages of interior decoration are as follows:

• We go over the surface with a wide spatula to remove the unevenness of the masonry mortar;
• We sweep the surface with a brush in order to remove dust;
• Apply on the surface a layer of a penetrating primer such as concrete contact;
• After the penetrating primer has completely dried, apply the second layer of the film-forming primer;

After such preparation, various plaster can be applied to building surfaces, since the absorbency of the walls will be much lower than before the primer. I recommend using not a gypsum putty, but ready-made plaster cement-sand mixtures (DSP) with the addition of lime.

• We knead the cement-sand mixture (DSP) and apply it with a trowel to the surface to be trimmed to a thickness of 5-10 mm;

Fiberglass mesh - effective protection of plaster against cracking

• On top of the layer of the mixture, we lay the plaster mesh and go over its surface with a plastering trowel, pressing it into the solution;

• We pass over the applied layer, reinforced with mesh, with a comb - notched trowel and apply a relief;

• We leave the wall to dry during the day, regularly spraying the surface with water so that cracks do not appear;

• Plaster beacons are installed on the wall;
• In the interval between the beacons, a solution is thrown, and then drawn out by the rule;

• In the course of leveling the starting plaster, pits will remain - we fill them with a solution from a spatula and again pull them out with the rule;
• We leave the starting plaster to dry and at this time prepare a new cement-sand mixture with the addition of lime;

• Since the second layer will be the finishing layer, we sift the mixture mixed with water through a mesh with a mesh size of 2 mm;

• Apply the second leveling layer, also tightening with the rule;
• After the wall is plastered, but not yet dry, we rub the surface with a foam float in the light of a searchlight;

• Applying a long rule to the wall vertically and horizontally, we determine the presence of a relief and, if there is none, the plastering can be considered complete.

A wall plastered with DSP can subsequently be primed and plastered for painting or for gluing wallpaper. The degree of moisture absorption of aerated concrete through a thick layer of DSP will be negligible, and therefore there will be no problems with the operation of the wall.

If the interior decoration of the aerated concrete bath with ceramic tiles is supposed, there is no need to apply putty.

In the photo you can see the machine applied plaster. But since this method allows you to apply the plaster mixture only with a thin layer, only special moisture-resistant mixtures can be used for finishing aerated concrete walls, which will not allow moisture to enter the blocks.

Sheathing with plastic panels and clapboard

Why am I talking about these finishing materials as one finishing method? The reason is that both of these materials are attached to the walls in the same way. However, the configuration of the cross-section of the plastic panel and the wooden lining is almost identical.

Thanks to the thorn-and-groove connection, the wall panels form an almost airtight surface. However, you can insure yourself and cover the wall with a vapor barrier film before performing installation work.

I would like to draw your attention to the fact that the use of plastic wall panels in rooms with high humidity levels requires an efficient supply and exhaust ventilation.

The installation of wall panels, as well as the installation of the lining, begins with the installation of the supporting frame lathing. The traditional solution is to assemble the frame from a wooden bar; a more modern option is to assemble the lathing from a metal profile.

If you decide to install wall panels or lining, I strongly recommend assembling a metal crate, since it is lighter than wooden counterparts, and the price of a profile is more affordable than the cost of a wooden bar.

Fastening of panels and lining, depending on the type of lathing, can be carried out using nails, self-tapping screws or clamps. The use of lathing allows you to make the wall decoration perfectly flat on imperfectly flat walls. The difference in levels in this case is compensated by placing small inserts under the profile at the place of the depressions.

Panel mounting technology consists in fixing the first plank to the protruding spike on one side and to the edge of the groove on the other side. The next panel is pushed into the groove of the previous panel with a tenon, while the edge of the groove is again attached to the lathing. Subsequent panels are attached in the same way.

At the top, bottom and sides of the wall, special corner panels are installed, which, when properly installed, form an aesthetically pleasing frame.

Wall cladding with plasterboard sheets

Plasterboard cladding is done in two ways:

• Glue mounting- performed if the building surface is perfectly flat and there is no need to carry out hidden laying of communications;
• Mounting on a supporting frame- performed if the wall is imperfectly flat and if there is a need for hidden laying of communications or the need for laying heat-insulating materials.

Installation of drywall on glue is carried out after a thorough reinforcing surface treatment with deep penetration primers. Slight differences in the level of the mounting surface can be compensated for by increasing the thickness of the adhesive layer, but these differences should not exceed 5 mm.

Mounting on a supporting frame is more common, but it has a significant drawback - due to the thickness of the frame, free space is consumed, which is unacceptable for tight spaces. In the gap between the wall and the cladding, you can lay thermal insulation, communications and a vapor barrier film.

Both in the first and in the second case, the finished wall cladding is putty with the obligatory gluing of the inter-slab seams.

Exterior wall decoration made of aerated concrete

If the interior decoration of the house must be airtight so that moisture does not penetrate into the wall from the inside, then other requirements are imposed on the external device. So the exterior decoration of the house made of aerated concrete is carried out either airtight or by arranging ventilated facades.

What are the preferable facade finishes? To decide what is better for one or another method for decorating load-bearing walls with your own hands, I suggest that you familiarize yourself with examples of wet insulation and ventilated facade construction.

Wet method of finishing the facade of low-rise buildings

Exterior finishing of aerated concrete house with a wet method with the installation of thermal insulation is performed as follows:

• The surface of the wall is impregnated with a deep penetration primer;

• A layer of glue with a surface coverage of at least 60% is applied to the mineral wool slabs;

• Glue is applied to the wall with a surface coverage of at least 40%;

According to statistics, machine application of glue solution can halve the consumption of glue, reduce labor costs and significantly speed up the completion of finishing work. In addition, better material adhesion is ensured due to the fact that the adhesive is applied under pressure and penetrates into the pores of the surfaces to be joined.

• Prepared slabs are applied to the prepared wall surface, leveled and pressed;

• As necessary, the slabs are trimmed along the contour of window or door openings with a sharp segment knife;
• As the wall is glued with thermal insulation plates, we regularly check the verticality of the facade plane, using the rule with a built-in spirit level;

• We reinforce the window openings with fiberglass, install a corner around the perimeter and plaster with a cement-sand mixture with the addition of lime;

• After the facade of the house is sheathed with slabs, we additionally fasten the insulation with dowel-nails with a plastic umbrella hat, as shown in the photo;
• Windows and are covered with a protective film;

• A layer of glue is applied to the surface of the insulation using a machine method;
• The applied glue is leveled and a strip of fiberglass mesh is lined on top of it;

• The alkali-resistant mesh is pressed into the surface of the still wet plaster with a spatula;

• After complete drying, the facade is treated with a film-forming primer, after which you can finish painting with water-based paints.

Ventilated facades

As an example, I will tell you about Scanrok ventilated facades made of fiber cement siding imitating brick. The operating principle of the facade can be seen in the proposed diagram.

Moisture from the walls is effectively removed to the outside, while moist air from the outside cannot enter the thickness of the wall. In addition, a plate of heat-insulating material can be placed between the outer cladding and the wall, which will reduce the likelihood of blocks freezing.

The demonstrated method is broadly identical to the technology for installing metal siding.

Installation instructions consist of the following steps:

• Marking is performed for the installation of metal holders;

• According to the marking, holes are drilled for the anchor bolts on which the holders are installed;

When installing the holders, do not forget to check the horizontal position of their position using a spirit level.

• The holders are fixed horizontally located profiles;

• Between the horizontal profiles, insulation plates are attached to the wall using dowel-nails with an umbrella head;

• After the thermal insulation boards have taken their place in the crate, vertical guide profiles with protrusions for siding fastening are attached;

• Fiber cement siding is being installed on vertical profiles.

All structural elements in the required quantity are already included in the ventilated facade kit. Therefore, it remains for you to calculate the area of ​​\ u200b \ u200bthe surface to be faced and, in accordance with these measurements, buy a siding kit.

Conclusion

From the article, you learned how to decorate the outside and inside of the walls of a country house built of aerated concrete. From the listed instructions, you can choose the best option for doing it yourself. As usual, I recommend watching the video in this article.

December 7, 2016

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