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External insulation of expanded clay concrete walls. External insulation of expanded clay concrete walls Penoplex thickness for insulation of expanded clay concrete walls

Expanded clay concrete is a modern and very convenient building material for country houses. It is not at all difficult to build a claydite-concrete house. Such a building will be no less reliable than a brick one, and all the work will be much cheaper.

Expanded clay (baked clay) and a mixture of cement and sand are used to make blocks. Clay filler makes artificial stones light and completely harmless to the human body and environment. Structures turn out dry and well "breathing" as they are completely vapor-permeable.

A mixture of concrete and expanded clay does not absorb moisture as well as foam concrete of similar properties. And moisture resistance directly affects the thermal insulation ability. Compared to brickwork, the thermal conductivity is one and a half times lower, and compared to foam concrete, it is almost two times lower (of course, walls of the same thickness are compared). In the construction of one- and low-rise houses, expanded clay concrete has been successfully used for several decades.

In size, one block is 7 times larger than bricks, but at the same time it has a mass 2.5 times less. Therefore, the work is carried out quite quickly, and even a novice bricklayer can handle them. Professionals can lay about 3 cubic meters of expanded clay concrete per day. brick building is on average three times slower.

Due to the size of the blocks of expanded clay concrete cement mortar also requires much less than for laying bricks. Depending on the laying method, the thickness of the walls of expanded clay blocks may be different. During the construction of low (one- or two-story) houses in the southern regions, walls can be made no more than half a meter thick, but, however, only if there is an exterior finish with insulation and plaster or face stone.

For the northern area, where Cold winter- the phenomenon is constant, the walls should be thicker. For residential buildings, a thickness of 80 centimeters will be optimal. If the room is non-residential, and there is no heating in it, then a thickness of 20 centimeters and sheathing with insulation is quite suitable.

Due to the high strength of expanded clay concrete, it can be used to build high-rise buildings, but, however, this will require additional reinforcement with steel bars.

Expanded clay concrete wall has a not very attractive appearance, therefore, even if external insulation was not planned, you should still think about cladding from the outside. Indeed, this will also be of practical use, since, despite the low hygroscopicity, the wall will certainly begin to crack and gradually collapse from temperature changes and freezing water in a couple of years.

Is it necessary to insulate a claydite-concrete house from the outside?

At the moment, the construction of houses from expanded clay concrete blocks is gaining popularity. Let's try to figure out if this material is so good. Expanded clay concrete blocks have good thermal insulation, relatively inexpensive cost and low weight.

The use of expanded clay concrete blocks as the main building material of your home is fully justified, however, despite all the worthy characteristics of this material, special attention should be paid to the insulation of the house from the outside.

Let's just say that the house needs additional external insulation, even if the expanded clay concrete blocks were laid in two rows. This is most relevant for areas where low temperature. If you do not pay special attention to insulation, cracks may appear in the house, even if the quality of the blocks meets all standards.

In addition, the decoration of the house from the outside protects it from the effects of environmental factors, guarantees thermal insulation, waterproofing and soundproofing of the walls. If you insulate the house only from the inside, condensation will form between the insulation and the material of the walls, and this after some time will lead to significant damage to the blocks of expanded clay concrete.

Let's look at the most common methods of insulation.

brick cladding

This method is very effective, since the brick has a high thermal conductivity, but entails rather high costs due to the considerable cost of this material.

Warming with mineral wool

This method is certainly suitable for those regions where the weather is cold throughout the year. Cotton wool weighs a little, is inexpensive, easy to install, and at the same time perfectly insulates. Additionally, you can install a vapor-tight insulation with aluminum foil, then you will definitely not be afraid of any frost.

Foam insulation

This material is lightweight, it can be used to insulate any building. Styrofoam - the most inexpensive material from modern heaters.

We decided that it is worth insulating a house of expanded clay concrete blocks from the outside. Let's look at additional aspects of this issue. It is important to pay attention to the protection of the insulation you have chosen from mechanical and atmospheric influences from the outside. For this, brick lining is used, which we wrote about earlier, as well as such equally common materials as fake diamond, facade tiles, siding or plaster.

Artificial stone has a fairly reasonable cost, huge selection shades, but its characteristic disadvantage is the short service life.

Facade tiles are frost-resistant and heat-resistant, while their cost is lower than that of some other facing materials.

Siding is also a fairly durable material that is resistant to decay, retains its original appearance, and is resistant to mechanical stress. The great advantage of this material is low cost, ease of installation, low repair and maintenance costs.

Lining is a thin sheathing board made of wood, the characteristics of which directly depend on the type of wood. It should be noted that by itself wooden material increases thermal insulation characteristics and looks beautiful from the outside.

It is obvious that the insulation of a claydite-concrete house from the outside is necessary in each case, because this material loses its properties over time. It is up to you to decide which insulation to choose, how to finish the house outside, guided by your financial capabilities, the climatic conditions in which you live, and aesthetic preferences.

The insulation of a house made of expanded clay concrete blocks from the outside worries many developers, since this material is becoming more and more popular in low-rise construction. Consider in this article whether it is necessary to insulate claydite block walls 40 cm thick during construction or when the house has already been built. With an additional layer of thermal insulation, less money will be spent on heating the home, but the insulation of walls made of expanded clay concrete will require the cost of buying building materials.

Low-rise construction of expanded clay blocks has long been very popular. This material differs from the foam block in greater strength and frost resistance, but at the same time, expanded clay concrete also has a low thermal conductivity. But with insufficient thickness of the outer walls and lack of insulation strip foundation heating such a house in winter will be very expensive.

Do I need to insulate a house from expanded clay blocks

Even before the start of the construction of the house and during the laying of walls from a 40 cm expanded clay block, many decide to additionally insulate private house to save on heating. Expanded clay concrete is a very durable material, but it is not the warmest, unlike wood concrete and foam concrete blocks. Consider how and with what to insulate a house from expanded clay concrete blocks with your own hands.

Comparison of heaters by thermal conductivity

To protect the facade and exterior walls of the house from freezing, a thermal insulation layer of at least 10 cm is required. For these tasks, you can use expanded polystyrene or mineral wool, which are mounted on the facade from the outside of the house. We will tell you in the next chapter how to independently insulate a house from expanded clay blocks from the outside and from the inside, what kind of thermal insulation is best used in work.

How to insulate a house from expanded clay concrete blocks

Builders recommend insulating the facade of the house in a certain sequence - the lower the vapor permeability of the material, the closer it should be to the street in the "pie" of insulation. Material with greater vapor permeability should be closer to the heated room. But the most perfect option- build walls without insulation, calculating the thickness of the walls on the thermal insulation calculator.

Insulation of a house from expanded clay block of mineral wool

Many developers believe that when insulating brick house or walls made of expanded clay block, it is better to give preference to stone wool. The advantage of mineral wool from expanded polystyrene in fire resistance and safety for human health. But the use of glass wool and basalt wool obliges when laying fibrous insulation on the facade to use a vapor barrier film to protect against moisture.

How to insulate a house from expanded clay concrete blocks from the outside

Insulation of a house from expanded clay block with foam plastic

When externally insulating a claydite block with foam, it should be remembered that polystyrene foam should be protected from mechanical damage siding or facade plaster. The main advantage of expanded polystyrene boards is the low cost of the material and ease of installation. Styrofoam slabs are attached to the expanded clay block facade with the help of polystyrene foam glue and fungal dowels.

Insulation of a house from expanded clay block with foam plastic

Extruded polystyrene foam is a dense and durable insulation that is not afraid of moisture. Due to its characteristics, extrusion is ideal for foundations and insulation of the blind area of ​​\u200b\u200bthe house. Expanded polystyrene thermal insulation is best used from the street, as the material is flammable, and at high temperatures it releases substances harmful to humans - styrenes.

How to insulate a house from expanded clay concrete blocks with foam plastic

Do-it-yourself insulation of a house from expanded clay blocks

Consider several options for protecting blocks of expanded clay concrete from freezing from the outside and from the inside. To insulate the house from the inside, do not use expanded polystyrene, it is always better to insulate from the street. Whatever manufacturer of mineral wool you choose, you should remember that the insulation must be protected with a vapor barrier film from the side of the warm room.

How to perform

If the house is laid out walls made of expanded clay block 40 centimeters without cladding, then you can insulate the house by laying insulation between blocks and bricks. Despite the effectiveness of this method, it is characterized by the complexity of the work and the high costs associated with the remuneration of professional masons. Consider the option of thermal insulation, which you can do with your own hands.

Insulation of walls from expanded clay blocks from the outside can be carried out using cladding of the house with slab thermal insulation with siding sheathing. Expanded polystyrene is attached to the facade with glue and additionally fixed at the corners with dowel-fungi. A paint mesh is glued on top of the foam plastic and the facade is puttied. When sheathing the facade with siding, first you need to make guides from the bars.

Warming of the house from expanded clay blocks from the outside

If a claydite-concrete walls laid out 40 centimeters with cladding, then there is only one way out - to insulate the wall from the expanded clay block from the inside of the room. The disadvantage of this solution is the reduction of living space and freezing of the outer walls. Expanded clay concrete will be under the influence of frost, as a result of which condensation and mold can form between the insulation and the wall.

At the stage of building a house, you can fill the space between the brickwork and the expanded clay block with polyurethane foam or ecowool. The disadvantage of using sprayed thermal insulation is the high cost of the material and the availability of special equipment. Therefore, when building walls, you can use inexpensive insulation - polystyrene foam or extruded polystyrene foam Technoplex.

How to insulate a house from expanded clay concrete blocks from the inside

Using thermal insulation inside a dwelling is not the best solution. The dew point in this case will be between the insulation and the wall, which will certainly cause condensation. When designing, the dew point should always be avoided or brought as close as possible to outer wall. All this can be avoided if you independently insulate the house from expanded clay concrete blocks from the outside.

The online dew point calculator will help you calculate the thickness of the thermal insulation and see where the condensation occurs.

To reduce the thermal conductivity of walls made of expanded clay block, you can get by with facade plaster, which has an almost identical composition with expanded clay concrete. At the same time, the plaster levels the facade, closes all cracks and micropores in the masonry. Also, thermal panels made of extruded polystyrene foam can be used to insulate the facade.

Warming of the house from expanded clay blocks from the outside and from the inside


The insulation of a house made of expanded clay blocks from the outside worries many developers, since the material is popular in low-rise construction.

How to insulate a house from expanded clay concrete blocks

Foreword. Most often, when building houses from expanded clay blocks, the walls are 40 cm long, i.e. in two blocks. Even before the start of construction, many people ask themselves the question - is it worth it to insulate walls from expanded clay blocks? The second option, when the house has already been built and a lot of money is spent on heating, the owners are wondering - what is the best way to insulate the house from expanded clay block? We will analyze these two options in this article and show a video tutorial on how to insulate walls made of expanded clay concrete on our own.

Is it necessary to insulate the walls of expanded clay concrete block?

Most often in construction country house from the expanded clay block, the walls are laid at 40 cm, i.e. in two blocks. Even before the start of construction, many people ask the question - is it worth it to insulate walls from expanded clay concrete block? The second option, when the house has already been built and a lot of money is spent on heating, the owners are already asking themselves the question - what is the best way to insulate the house from expanded clay block, how to insulate a house from expanded clay block?

Options for laying walls from expanded clay concrete blocks

Alas, these blocks, although durable, are not the warmest material. Most importantly, without insulation, it will be much more expensive to heat a house. In this case, the insulation must be at least 10 cm, for example, the most inexpensive option polystyrene foam on the outside of the house, but everything should be airtight - the seams between the heater sheets should be carefully foamed with mounting foam.

How and how to insulate a house of expanded clay concrete blocks from the outside

Comparison of thermal conductivity of wall materials

Modern building material in the form of expanded clay concrete blocks is distinguished by reliability and durability.

Additional benefits include frost resistance and water resistance. It is due to these characteristics that it is in great demand among developers.

Consider several options for wall insulation.

In any case, it should be remembered that the insulation must be covered from the outside with a vapor barrier film. This rule especially applies to heaters that can absorb moisture from the environment, while their heat-conducting characteristics increase, which is not at all good for us.

1. the walls of the house are 40 centimeters without external brickwork

You can insulate the house from the outside with facing masonry, laying insulation between the claydite block and the brick. This is a more expensive option for insulation. Despite the effectiveness, this method is not used so often. The problem is the high cost of facing material and the complexity construction works, namely facing brickwork. Not everyone will be able to do it with high quality, and the work of masons is quite expensive, so consider the next option that you can do yourself.

Expanded clay block house insulation from the outside

The second method involves facing walls from expanded clay blocks from the outside. PVC panels or siding, under which insulation is placed. Alternatively, you can lay sheets of foam 5 centimeters in two rows, so that the second row overlaps the seams of the first row (in a checkerboard pattern). The siding is mounted on pre-installed vertical rails on the walls. You can also use basalt, roll insulation, protecting them with a vapor barrier from moisture.

And another option for insulating walls from expanded clay blocks from the outside with your own hands is facing the house with slab insulation (polystyrene foam or foam plastic), followed by applying decorative plaster over the insulation. The insulation on the walls is attached to the adhesive composition, and additionally attached to the fungi. A mesh is glued on top and puttied decorative plaster. This insulation option can be done by yourself.

2. walls of the house 40 centimeters with facing masonry

Such a problem may arise when you bought an unfinished house made of expanded clay blocks, where there is no insulation between the wall and the facing masonry, but only an air gap of 5 cm. Also, you may have built such a house yourself, but noticed that it takes more money to heat the house, than you expected, or more than your neighbors. In this case, you will need to think about how to insulate the facade of the house from expanded clay concrete blocks from the inside with your own hands, or rather between the wall and the facing masonry ..

House insulation with facing masonry

If you bought an unfinished house where there is no insulation between the expanded clay block and facing brick, then you can insulate the wall from the inside with polyurethane foam, which is poured between the walls into the drilled holes. This insulation, after pouring, expands, like mounting foam, without forming gaps and cracks.

In addition, polyurethane foam is not afraid of moisture and rodents, which means that rustling rodents between the walls are not afraid of your home, the insulation will ensure the safety of heat and protect the walls of the house from dampness, moisture and mold. The only disadvantage of such insulation is its high cost, and that it will not work to insulate the walls on your own - you need special equipment.

Everything is much simpler if you are building a house yourself, then when building walls you need to put insulation between the walls. But what is the best way to insulate the house in this case? - you ask. Most often, mineral wool, polystyrene foam or foam plastic is used for these purposes. Let us consider in more detail these types of heaters for thermal insulation of walls made of expanded clay block with our own hands.

Heaters for expanded clay concrete facade of the house

Warming of the house from expanded clay block mineral wool

According to professionals, of all the options for warming a house from expanded clay blocks, it is better to give preference to mineral wool. The main advantage of this insulation is safety for health due to environmentally friendly components. In addition, the material does not burn, it keeps heat well. When insulating walls with expanded clay blocks with mineral wool, the insulation must be closed with a vapor barrier, protecting it from getting wet and moisture.

Insulation of the facade of the house from expanded clay block with foam plastic

When insulating walls with foam plastic, it should be remembered that rodents can start in it, in addition, the foam absorbs moisture and is a fire hazard. The ventilated facade must necessarily be closed with a grate in order to exclude the possibility of small animals and birds getting into the insulation. Their additional advantage of expanded polystyrene is the low cost of the material, ease of installation, and light weight.

Insulation of the facade of the house from expanded clay blocks with foam

Penoplex more modern material, it is denser and more durable than Styrofoam. In addition, penoplex is not afraid of moisture, it is environmentally friendly and rodents do not live in it. The plates have locks that minimize the formation of gaps, it is lightweight and easy to install. In our opinion, this the best way for warming the walls of a house built from expanded clay block.

How and how to insulate houses from expanded clay concrete blocks from the inside

Use heater for internal walls at home is not the best solution. Since in this case the dew point (the junction of cold and warm air with the formation of condensate) will be located between the insulation and the wall. Thus, the wall of expanded clay block will completely freeze through, which will not happen if you independently insulate the wall from the outside.

Insulation of walls from expanded clay block from the inside

Today, builders advise insulating walls with materials in the following sequence - the higher the thermal insulation properties of the material, the closer it should be to the street, i.e. more cold material should be located closer to the heated room. To insulate walls from expanded clay blocks with your own hands, you should do with plaster. The mortar for the walls can be gypsum or cement.

Gypsum plaster is lighter and warmer. Before applying it to the walls, the surface is treated with concrete contact, which increases adhesion. Cement-sand plaster has the same composition as the wall material. That is why high adhesion is ensured. Both cement plaster and gypsum mortar provide the walls of the house with equally effective thermal insulation from the inside. They close the micropores of the blocks, close up cracks and crevices.

  • How and how to insulate walls from expanded clay block - video, instruction, Do-it-yourself insulation


    Many people ask the question - is it worth it to insulate the walls from the expanded clay block, what is the best way to insulate the house from the expanded clay concrete block yourself? Let's answer this question in detail.

How important is insulation?

How is insulation carried out

Expanded clay concrete blocks are frost-resistant and moisture-repellent. Based on this, apply various options insulation. But in order for the heat-insulating layer to be installed with high quality and serve for many years, it is important to put a vapor barrier on top of it. So the vapor barrier absorbs moisture, retaining its full properties.

Possible situations

More budget options for insulation are made using panels. For example, lining, metal or plastic siding. Styrofoam often acts as a heater in such situations. This material is laid in two layers, provided that it is 5 cm thick. The panels are placed on expanded clay concrete so that the seams of the first layer do not converge with the second. Next, they put the siding, and under it they put a vertical profile that forms the frame.

Facade with facing bricks

How to carry out warming?

Insulation of the house from the inside

Therefore, for internal insulation in houses, dense materials are used that have a vapor barrier. Gypsum or cement plaster will help protect and insulate the wall from the inside. The mass of gypsum mortar is less, and the possibility of saving heat is higher. The only negative is that gypsum does not adhere well to expanded clay concrete blocks. To eliminate this drawback, you need to prepare the wall before work.

How to insulate a house of expanded clay concrete blocks from the outside?


Warming of the house from expanded clay concrete. The importance of the procedure, insulation technology. The most popular materials for insulation: mineral wool, foam plastic, foam plastic. Features of internal insulation.

How to insulate a house from expanded clay concrete blocks from the outside

Insulation of the walls of expanded clay concrete house

Expanded clay concrete lays down in two rows, which corresponds to 40 cm. Such a thickness is not enough for the house to have thermal insulation properties. Without insulation, residents will have to intensively heat the house or endure adverse living conditions. To solve this problem, heaters are used. They come from different material and install them different ways. Therefore, before starting this stage, it is worth familiarizing yourself with the whole variety of options.

How important is insulation?

Expanded clay concrete blocks have many advantages, are alternative solution when looking for a budget-friendly and durable material. But they have their drawbacks - poor thermal insulation. With the help of heaters, this problem is solved, and heating costs are also reduced. In order for this procedure to be successful, it is necessary to use a heater of at least 10 cm. And also make sure that there are no seams and gaps between the sheets of insulation, if there are any, then it is worth foaming them with mounting foam.

How is insulation carried out

Expanded clay concrete blocks are frost-resistant and moisture-repellent. Based on this, various insulation options are used. But in order for the heat-insulating layer to be installed with high quality and serve for many years, it is important to put a vapor barrier on top of it. So the vapor barrier absorbs moisture, retaining its full properties.

Possible situations

It is easy to insulate a house from expanded clay concrete outside, knowing the two main options for laying expanded clay concrete block. It is important to study each in order to choose the best one for your home.

External façade cladding missing

This means that there is nothing but two rows of expanded clay concrete blocks. facade materials completely absent from the outside. In such a situation, facing the building with a brick, it is possible to place a heater between the lining and expanded clay concrete.

This is an effective thermal insulation measure, but it is rarely used. And all because the material for facing the whole house will be expensive. In addition, it is difficult to do such a volume of work on warming with this material. Because of this, you have to resort to outside help, which is also worth the additional cost.

More budget options for insulation are made using panels. For example, lining, metal or plastic siding. Styrofoam often acts as a heater in such situations. This material is laid in two layers, provided that it is 5 cm thick. The panels are placed on expanded clay concrete so that the seams of the first layer do not converge with the second. Next, they put the siding, and under it they put a vertical profile that forms the frame.

In addition to foam panels, mineral or basalt wool is used. But such materials require protection in the form of a vapor barrier. A glued slab heat-insulating layer is also used, and then covered with plaster. Plate insulation - polystyrene foam, polystyrene foam or polystyrene foam. Easily attached to expanded clay concrete, and then fixed with dowels.

Facade with facing bricks

A rather common situation when buying an unfinished building. In such a house there is already a brick lining, but there is no insulation layer between it and the expanded clay concrete. To remedy the situation, the walls are treated with polyurethane foam. This action is performed using holes in the wall through which the mixture is fed. The polyurethane in these holes expands and fills the gaps.

With such insulation, the expanded clay house is protected from moisture, rodents, and mold. The only disadvantage of this procedure is the price. In addition, specialists are needed to deposit this material, which also entails additional costs.

How to carry out warming?

It is possible to insulate a house from expanded clay concrete various materials, the most effective and affordable:

  1. Mineral wool. It has high thermal insulation characteristics and is a budget material. Provides protection of expanded clay blocks from moisture, dampness, temperature changes. They are laid in two layers, between which a waterproofing and windproof layer is placed. The aluminum foil provides a vapor barrier.
  2. Glass wool. Provides good thermal insulation in the house. This is an environmentally friendly material that is used to insulate both outside and inside the house. In the first situation, the insulation is placed between the foam and expanded clay concrete, and in the second - between the wall and the gypsum structure. Plastering over insulation materials will enhance their properties.
  3. Styrofoam. A budget option, but it is prone to flammability and can deteriorate due to rodents. On top of the foam, it is desirable to lay a reinforced mesh so that birds and small rodents do not have access to it.
  4. Penoplex. This material is similar to foam, but it is not interesting for rodents, is more durable and repels water well. It is believed that penoplex is the best material for warming houses.

Insulation of the house from the inside

Experts say that warming the house from the inside is not a prudent decision. Condensation may occur on the walls due to the shift in the dew point, in addition to this, the walls freeze through.

Therefore, for internal insulation in houses, dense materials are used that have a vapor barrier. Gypsum or cement plaster will help protect and insulate the wall from the inside. The mass of gypsum mortar is less, and the possibility of saving heat is higher. The only negative is that gypsum does not adhere well to expanded clay concrete blocks. To eliminate this drawback, you need to prepare the wall before work.

Cement plaster is ideal for expanded clay concrete, as they have a similar composition. Such plaster adheres well to the wall and closes all existing cracks.

We insulate the walls of the house from expanded clay concrete from the outside

The construction of houses from expanded clay concrete blocks is becoming quite popular. The material allows you to create a structure with excellent characteristics and at the same time spend a little money (when compared with other materials).

The next issue after construction, which needs to be considered at the design stage, is the insulation of the house, it will greatly help reduce heating costs. Next, we will consider the need for insulation of walls built of expanded clay concrete, and also list the materials that can be used for thermal insulation of walls from the outside.

Is it necessary to carry out the insulation of expanded clay structures?

The popularity of the material is due to its excellent characteristics of strength and durability. It has a thermal conductivity, which is almost 3 times lower than that of a brick. But it is not worth neglecting the insulation process of the walls of a house made of such material. There are 2 reasons for this:

  1. Expanded clay is aimed at providing high structural strength. To do this, in the manufacture of blocks, they try to make their structure as dense as possible, which contributes to an easier passage of heat through the walls. That is why finishing the structure on the outside with insulating material will help compensate for this drawback.
  2. Also, external atmospheric influences negatively affect this material. Of course, if compared with the same cinder block, then the resistance of expanded clay to frost is much higher. But this does not mean at all that frost does not destroy the material at all - this process occurs more slowly.

Insulating a house from expanded clay will not only increase its energy efficiency, but also significantly extend the life of the structure.

From the above words, it becomes clear that you should not refuse to insulate a structure made of expanded clay concrete blocks.

What thermal insulation materials to use?

The first thing to do is to plaster the walls on both sides, even if you plan to insulate! This will greatly affect the heat retention.

Let's look at the three main heaters that are most often used to insulate the walls of an expanded clay concrete house:

  • Minvata. She is preferred, in most cases, for several reasons: the finish on the outside will be made of environmentally friendly, non-combustible and heat-resistant material. But it is worth remembering the need for its waterproofing - mineral wool must be reliably protected from exposure to a humid environment.
  • Styrofoam. It is favored by many builders because of its ease, affordability, ease and speed of installation. But it is also worth remembering its disadvantages: it is easily gnawed by pests, fire hazardous and susceptible to moisture.
  • Penoplex. Carrying out the insulation of walls built from expanded clay blocks, it is worth paying attention to this material. It is easy to install, more resistant than its predecessor to moisture, rodents and is environmentally friendly. The disadvantages include the cost and high density, which does not allow the walls to "breathe".

We warm the claydite-concrete house on our own

Suppose that the opinion of experts is taken into account, and the insulation will be carried out with dense mineral wool. The algorithm of work is approximately the following:

Installation of polystyrene foam is carried out according to an absolutely similar principle: wall preparation, priming, installation of insulation, its strengthening, reinforcement, painting or covering with decorative panels.

The insulation of walls made of expanded clay concrete should be taken very important. To calculate the width of the insulation layer, use the thermal conductivity value of a particular structure based on the thickness of its external elements.

Warming of the house from expanded clay concrete

Warming of the house from expanded clay blocks from the outside

Expanded clay blocks are becoming increasingly popular, especially for the construction of private houses. This building material, in fact, differs little from the well-known cinder blocks, the difference is only in the structural filler. Here, the porous expanded clay material is used as the latter, which itself is often used for insulation. Therefore, expanded clay concrete has a fairly low thermal conductivity. When compared with ceramic clay bricks, expanded clay blocks retain heat 3 times better.

But, despite the fact that the walls built of expanded clay concrete are quite warm, thermal insulation measures from the outside will not interfere with them for two reasons:

  • additional insulation (has not hurt anyone yet);
  • protection of the expanded clay concrete wall from external influences.

Which method of thermal insulation from the outside is better for expanded clay concrete walls

Today, three main methods of thermal insulation of houses from the outside are used:

  • ventilated facade;
  • intra-wall insulation;
  • wet insulation.

Now consider which of these methods is preferable for walls made of the described building material. At the same time, it should be immediately noted that expanded clay concrete is quite fragile and, at the same time, hygroscopic material.

Ventilated facade, which involves the construction of a frame with sheathing it with some facing material, is a design that carries a significant additional load on the wall. Considering that expanded clay concrete blocks do not differ in particular strength, it is better to exclude this method of insulation from the outside.

The second method involves mounting a layer of insulation on the wall outside (usually dense mineral wool slabs), which is then lined with decorative facing bricks. This method of insulation is good in itself, however, it is too expensive, both for the purchase of building materials and for the remuneration of skilled masons.

The third method of the so-called "wet" insulation is the best suited in our case, because:

  • protects expanded clay concrete blocks from weathering;
  • does not create large loads on the insulated surface;
  • allows you to create a unique color design facade;
  • the least expensive in every sense.

Therefore, let's look at how to make such insulation outside a wall made of expanded clay concrete.

Technology of "wet" facade on claydite-concrete blocks

First, let's decide on the heater. Expanded clay concrete is porous, and therefore "breathable" material, so the heat-insulating agent must have the same qualities. According to this criterion, mineral wool, produced in the form of dense and durable plates, is the best suited.

Sometimes foam is also used here, but it is not very good in this case, since, being a material with water-repellent properties, it is not able to pass steam. Therefore, the condensate formed from the steam that passes through the wall from the side of the room will destroy the expanded clay concrete wall from the outside. Styrofoam, of course, is used for thermal insulation of such walls, when guided by considerations of cost savings, because this insulation is the most affordable.

So, let's consider how to insulate a house of expanded clay concrete blocks from the outside:

  • Prepare the surface of the wall, for which it needs to be cleaned of dust and treated with a high-quality primer for outdoor use.
  • Now we prepare the glue, focusing on the recommendations written on its packaging. For mixing, you will need a construction mixer or a drill with an appropriate nozzle. Properly prepared mixture should be kept on the working surface of the spatula.
  • The adhesive mixture is applied to the mineral wool sheet as follows. First, the entire surface from the side to be glued is covered with a thin layer, after which a slide of glue is formed along the perimeter. Two slides need to be made in the middle of the plate.
  • We begin to glue sheets of mineral wool from the bottom from one of the corners. During installation, you should constantly check the correct position of each plate using a spirit level ( building level). It is better to install mineral wool sheets in a circle so that the glue in the underlying rows has time to stick. Adjacent horizontal rows should be arranged so that the vertical seams do not match (like bricks in masonry).
  • After a day, the glued mineral wool slabs are fixed with umbrella-shaped dowels. To fix the mineral wool, you should use "umbrellas" with a metal core resembling a nail.
  • Now it's time to reinforce the surface of the insulation. For this, a special facade fiberglass mesh is used, which is sold in rolls of 50 meters. Its width is 1 m. Its installation takes place vertically. To do this, the surface is first covered with a layer of plaster adhesive approximately the width of the mesh. Then, cut in advance in size, a piece of mesh must be pressed into the layer of the applied solution using a wide (50-60 cm) front spatula. In this case, the surface, at the same time, is leveled.
  • Further, the dried reinforcing layer is covered with another thin layer of a special adhesive mass, primed, and covered with some kind of facade decorative plaster. After drying of all these layers, painting is carried out.

It should be noted that if you decide to use foam for insulation from the outside, the workflow looks exactly the same. The only difference is the glue used for this.

The process of insulating a wall made of expanded clay concrete blocks from the outside does not present strong difficulties, however, it is still better to entrust it to professionals who have done this more than once, since there are plenty of nuances in this work, especially when insulating with mineral wool.

How to insulate a house from expanded clay concrete blocks from the outside: we do it wisely

Expanded clay blocks, having appeared relatively recently on the construction market, have occupied their niche. However, they did not become mega-popular.

In this article we will try to draw attention to their positive and negative qualities, use in the construction of housing and, most importantly, on how and how to insulate a house from expanded clay concrete blocks from the outside for a comfortable stay.

Material Description

Blocks, depending on the strength and density, are: heat-insulating, partition, wall and facing.

Based on calculations, the recommended thickness of the walls of a building made of expanded clay concrete blocks is 40-60 cm. This is data for designing construction in the central region Russian Federation, including for the Moscow and Leningrad regions. The building material has many advantages.

  • non-combustible;
  • durable;
  • not subject to climatic fluctuations;
  • have a fairly low coefficient of thermal conductivity;
  • environmentally friendly;
  • do not rot;
  • are not subject to invasions of rodents;
  • have high corrosion resistance;
  • easy to use, easy to process;
  • are good sound insulators.

Compared to other materials, buildings made of expanded clay concrete blocks are more budgetary, since their price is lower than that of foam and aerated concrete counterparts. A wall built of expanded clay concrete blocks weighs three times less than a brick one. Therefore, a strong foundation is not needed.

The production of these blocks is a simple matter. The standard composition is expanded clay, cement, sand and water. The mixture is thoroughly mixed, and with the help of a vibrating machine it is compacted into molds.

When choosing a manufacturer, you should pay special attention to the technology used for the production of blocks. Since, in addition to the main components (which must also be of certain fractions and types, such as: cement grade not lower than M400, expanded clay not larger than 100 mm, fine sand), it is necessary to add components to the mixture that increase frost resistance, plasticity, binding capacity (resins , lignosulfonate).

Drying blocks lasts at least a month.

Production of expanded clay concrete blocks

In principle, blocks can be made at home, while many add washing powder. But the quality of these products will remain on the conscience of the manufacturers, since only high-quality equipment can produce good material at the output that does not have unnecessary voids.

Important! Expanded clay blocks are produced in different densities. Be sure to take this into account when choosing a material, especially for load-bearing walls.

During construction, it should be taken into account that the material is rather fragile and the installation of dowels should be carried out with increased accuracy. Block walls do not shrink. However, buildings of this material should not be built higher than two floors.

Building insulation

The question often arises: is it necessary to insulate a house from expanded clay concrete blocks? Due to its porous structure, the material has a relatively low frost resistance. Therefore, buildings from such blocks need additional thermal insulation.

  • In addition, in addition to creating a comfortable microclimate in the house, with the help of insulation, additional protection from the effects of the external environment is created, as a result of which the durability of the structure increases significantly.
  • In this article, we will look at how to competently insulate a house from expanded clay concrete blocks from the outside.
  • Three types of thermal insulation can be used for wall insulation: mineral wool, polystyrene foam and extruded polystyrene foam (foam foam).
  • The last two materials are not recommended by experts for the following reasons. Styrofoam has poor vapor permeability. Vapors, penetrating through the walls, turn into condensate and have a destructive effect on the structure. In addition, it is susceptible to rodent attack.
  • Penoplex, due to its density, does not allow the walls to breathe and is quite expensive, but does not require additional waterproofing.
  • Mineral wool (both rolled and mats) is the best option for insulating walls made of expanded clay concrete blocks. It has numerous advantages: non-combustible, does not rot, is characterized by good sound and heat insulation, does not suffer from rodents.

It is more correct to insulate a house from expanded clay concrete blocks from the outside, since in this case the dew point will be on the surface of the building and the service life of the building will increase.

How to insulate a house from expanded clay concrete blocks from the outside


Insulation of walls of expanded clay concrete house Expanded clay lays down in two rows, which corresponds to 40 cm. Such a thickness is not enough for the house to have thermal insulation properties. Without insulation, residents will have to ...

Expanded clay blocks relatively recently appeared on the market as a building material, so not everyone knows about their qualities. Expanded clay concrete stands out among others that exist today building materials its strength, frost resistance, low coefficient of thermal conductivity, fast erection and durability. Thanks to these many positive qualities he deserved his popularity in the construction market.

Order expanded clay concrete blocks on favorable terms by calling us at:

or submit an application via .

Using expanded clay concrete blocks in the construction of houses, an important question may arise - do the walls need to be insulated and what building material is better to choose for warming a house made of expanded clay concrete. Let us consider in detail all the nuances of this issue.

Is it necessary to insulate a house from expanded clay block

Most often, when erecting the walls of a house from expanded clay concrete blocks, they are placed in two rows, due to which the thickness of the wall structure is 40 centimeters. For significant financial savings on heating a house from expanded clay block in winter time, the issue of thermal insulation of the wall should be decided in advance, even at the stage of planning the future construction of the wall of the house, since expanded clay concrete is not the warmest building material when building walls. For walls 40 centimeters thick, in order for the thermal insulation to be of high quality, its thickness must be at least 10 centimeters.

What materials to make thermal insulation of the house from expanded clay concrete blocks

Insulation of the facade of the house with mineral wool

Among experienced builders, there is an opinion that it is better to use mineral wool to insulate a claydite-concrete house. Its main advantages are safety for health, as it is made from natural mineral components. Mineral wool has low thermal conductivity and is also safe in case of fire. But when it is used for insulation of expanded clay blocks, it is required to protect it from moisture with waterproofing membranes.

Application as a foam insulation for houses made of expanded clay concrete block

As a thermal protection, you can use the most common and less expensive material - foam. It is necessary to mount it on the glue on the outside of the wall, while tightly laying the foam polystyrene plates, and, if necessary, sealing the seams formed between them with mounting foam. It must also be remembered that this type of insulation can be damaged by rodents and small birds. In the case of its use, it is necessary to sheathe the facade with siding or plaster, in order to avoid damage to it. The main advantage of this type of insulation, such as foam, is its low cost and ease of use.

The method of warming a house from expanded clay block with foam plastic

Compared to expanded polystyrene, foam plastic has a denser and more durable structure. Also, extruded polystyrene foam is safe for human health and is not affected by moisture. This material weighs a little and is easily mounted on a facade of expanded clay concrete. In our opinion, he is one of the best materials for insulation of building structures.
Thermal insulation of the facade of the house from expanded clay concrete blocks from the outside
There are several options for warming the house from the outside, from the inside and with the help of facing masonry. Below we will consider all these options in more detail.

40 centimeter walls made of expanded clay block without facing masonry

From the outside, it is possible to insulate the facade of expanded clay concrete using the use of facing masonry, i.e. lay foam between the blocks and the brick, leaving a ventilated gap for ventilation. This method of insulation is effective, but highly costly, due to the complexity of the work performed and the need to attract specialized masons. As a result, it is rarely used in practice. There are ways to insulate houses from expanded clay concrete blocks that you can apply yourself, without hiring qualified specialists.

One such option is the installation of foam boards, having a thickness of at least five centimeters, in two rows, so that the second row covers the joints of the first row. Then the siding is attached to the mounted vertical rails. As an insulating material, you can use not only expanded polystyrene and penoplex, but also basalt mineral wool insulation, after taking care of their protection with a vapor barrier film.

And another way to insulate walls made of expanded clay concrete from the outside is to use foam plastic of the desired density or foam plastic with a layer on top of them facade plaster. After fixing the slab insulation to the adhesive with additional use dowel-fungi, the entire surface is covered with a paint grid, and then puttied with decorative plaster.

Walls made of expanded clay concrete block with a thickness of 40 centimeters with facing masonry

If there is no insulation between the claydite blocks and the facing masonry, then in order to reduce heating costs in winter period time, it is necessary to insulate the walls from the inside. Polyurethane foam (PPU) can easily cope with this task. To do this, holes are drilled in the wall, and using a special installation, polyurethane foam is poured into them. After pouring into the wall, the PPU expands as polyurethane foam, and creates a continuous layer of insulation, replacing the air gap. Using this method, you can protect yourself from dampness and keep warm in the house in cold period time. But this material has a high cost and its use is possible only with the use of special equipment, which entails additional costs. This is the main disadvantage in using this method for insulating a house made of expanded clay concrete blocks with facing masonry. Therefore, even at the stage of erecting walls from expanded clay blocks, you should not leave voids between the wall and the facing masonry, but immediately take care of the insulation from polystyrene foam or extruded polystyrene foam.

Ways to insulate a house from expanded clay concrete blocks from the inside

The use of heat-insulating materials from the inside as a finish for expanded clay concrete blocks is not the best option, since there is a possibility of a dew point appearing in the wall. So that the wall does not freeze, and condensation and moisture do not form on its surface, it is best to insulate it from the outside. But, if there is no possibility to insulate expanded clay concrete blocks from the outside, then plaster can be used as insulation of the house from the inside. In its composition, it is a dense material and has a large vapor barrier, which gives good insulation and protects the walls of expanded clay concrete blocks from the inside. Plaster can be either gypsum or cement-sand. There are differences in the use of these two solutions for the insulation of expanded clay concrete blocks. Let's take a closer look at which ones:

  • Gypsum plaster

This type of plaster has a smaller mass, and, accordingly, its thermal insulation is higher. It should also be mentioned that gypsum plaster there is also a drawback, namely, poor adhesion to the wall of expanded clay concrete. To use it, it will be necessary to additionally treat the walls with a primer, which will increase the adhesive characteristics of gypsum plaster.

  • Cement-sand plaster

It is well suited as a material for insulating expanded clay concrete walls, as it has the same composition with expanded clay concrete blocks. Cement-sand plaster easily penetrates into the pores existing on expanded clay concrete blocks, which creates an ideal coating and provides a good barrier against moisture penetration.

And in conclusion, we recall that in order to get good thermal insulation of a house made of expanded clay concrete blocks and at the same time save money on heating in the cold season, you need to use only quality material for thermal insulation of the walls of the house, and also do not forget about the insulation of the strip foundation and the ceiling of the basement. To do this, you need to carefully and correctly approach this issue. After all, with the wrong choice thermal insulation material and violation of the rules and regulations for its installation, there is a high probability that the quality of the house will deteriorate and its service life will decrease.

Of course, the insulation of a claydite-concrete house requires increased attention from the one who performs such work - first of all, attention should be paid to the thickness of the walls, which are forty centimeters - in two blocks, respectively. Before the very start of construction, people try to figure everything out and ask themselves the question - is it necessary to insulate the expanded clay concrete blocks of walls from the outside?

After all, there is another option, when the structure has already been erected, but at the same time a lot of financial resources are wasted on heating. In this case, the owners begin to think about optimizing external insulation. Next, it will be shown in detail how it should happen in detail and which materials are better to use. Let's try to sort out all kinds of insulation options in this publication.

How important is insulation

Is insulation as important as they write about it everywhere on the Internet? There is a lot of information on the network - it's no secret that not everything needs to be paid attention to. The vast majority of data, as a rule, relate to the topic and partially disclose it.

First of all, it is necessary to choose the right insulation for expanded clay concrete walls - this is the basis of the basics, since success will directly depend on this.

Wall insulation made of expanded clay concrete blocks should take place gradually - you should not force events or try to quickly find a replacement for this material.

It is safe to say that more money will be spent in this case - this is facilitated by an increase in density by about ten centimeters.

An alternative to insulating expanded clay walls from the outside is the correct use of budget options. The most common and, at the same time, budget option is laying on the outside of the building - indeed, this may be an exception to the rule, but in this aspect, compliance with tightness is not even discussed. There is free space between the sheets of insulation - foam the seams and holes with mounting foam.

Is there a difference in characteristics and thermal conductivity of different wall materials?

Wall insulation options

Naturally. Today, the world of building materials is updated almost daily - the insulation of a house from expanded clay blocks outside good example. The technologies for insulating expanded clay concrete blocks of walls on the outside in different states differ - for example, in Spain everything will be done far from the same as in the Russian Federation.

Modern insulation of a house made of expanded clay concrete blocks is distinguished by increased reliability and durability in operation.

Additional advantages are resistance to frosty temperatures and water resistance.
It is thanks to these characteristics that developers, even in apartment buildings, purchase such blocks in large quantities.

What heater to choose?

How to insulate claydite-concrete wall blocks from the outside with mineral wool, foam plastic or foam plastic?

Professionals say that of all the above three options, it is advisable to stop at. This material not only optimizes the insulation of the house from expanded clay blocks from the outside, but is also completely safe for human health, since it contains exclusively environmentally friendly components.

Fire safety is also very important - the material does not burn, it is perfectly able to withstand heat and external loads. If you decide to stay on mineral wool, then try to cover all the necessary places with a vapor barrier, protecting them from moisture and getting wet.

When insulating walls with polystyrene foam, it is imperative to remember the so-called "unpleasant surprises" - with the expiration of time, rodents can start in such material.

Fire hazard and moisture absorption are another disadvantages that often determine the choice of builders in favor of the same mineral wool.

A well-ventilated facade should always be covered with a grate - this is necessary in order to completely exclude even the theoretical possibility of small animals and birds getting into the insulation. In addition to the low cost of the material, which was mentioned above, its advantages are easy installation and light weight.

The density and strength indicators of foam plastic, in comparison with, are much higher. The plates have locks that minimize the formation of unnecessary gaps. Penoplex itself is light and easy to install.

We modestly believe that this is the best option in order to qualitatively insulate the walls of almost any home.
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    • Insulation of walls from expanded clay concrete blocks from the outside is a way to reduce heat loss in a building and save on heating costs without reducing the usable area of ​​​​the premises. When using this method, more building materials will be required than when working inside the house, however, the process itself is easier to carry out, and the outer surfaces of the walls will be protected from the influence of destructive external factors.

    Do I need to insulate

    The thermal conductivity of the blocks depends on the composition of the raw materials used for their manufacture. So, expanded clay concrete with a density of less than 1000 kg / m? it has low thermal conductivity and when building a wall of the recommended thickness (70 cm) it does not require additional insulation - it can simply be sheathed with a finishing material.

    For denser compositions (up to 1200 kg / m?), the thermal conductivity is higher, and in regions with cold winters, buildings made of expanded clay concrete blocks need to be laid with heat-insulating material.


    Worth knowing! In addition to reducing heat loss, the insulation of expanded clay walls from the outside allows you to protect surfaces from destruction due to the effects of precipitation and temperature changes. This increases the life of the building.

    What materials to use

    It is possible to carry out wall insulation from expanded clay concrete blocks using various materials:


    Advice! Answering the question of how to insulate the expanded clay block from the outside, experienced builders recommend mineral or basalt wool.

    The nuances of the work

    There are 3 ways of external insulation of expanded clay concrete walls:

    1. Ventilated façade. When choosing this method, first a frame is created, inside which insulation boards are laid. It is important to consider that the crate is attached to the wall, creating an additional load on it, so this method is not recommended.
    2. Laying insulation between the block and facing bricks. This method is considered the most reliable and durable, but the cost of such a solution is high, and therefore not available to everyone.
    3. "Wet" method. The budgetary method of external insulation, used most often. It consists in the fact that the insulation is fixed to the wall using a special solution, after which it is covered with a vapor barrier material, on top of which plaster is applied. The advantages of this option: the absence of a serious load on the wall, the ability to paint the facade of the building in any color, the low cost of materials and work, the protection of expanded clay concrete from the influence of external factors (precipitation, temperature changes, winds).

    Important! Before insulating expanded clay concrete blocks from the outside, they need to be plastered. This increases the wall's ability to retain heat.

    The procedure for work with insulation

    In order to insulate expanded clay concrete walls on your own, you should strictly adhere to the technology of work. The process consists of several stages: surface preparation, preparation of the mortar, application of the adhesive composition on the boards, installation of insulation, creation of a vapor barrier layer, reinforcement, and cladding.

    Materials and tools


    For work you will need:

    • insulation;
    • fiberglass facade mesh;
    • primer;
    • adhesive composition for insulation;
    • putty;
    • drill with a nozzle for mixing the solution;
    • containers for the preparation of glue and putty;
    • cuvette and brush for applying a primer;
    • construction level;
    • spatulas - narrow, wide, serrated;
    • dowels are umbrella-shaped;
    • construction knife;
    • mounting foam;
    • roulette;
    • vapor barrier material (membrane);
    • construction tape.

    Depending on which cladding method is chosen, other materials will also be needed: brick, siding or facade plaster.

    Training


    The surface is cleaned of debris, dust, dirt. Apply a layer of primer, wait until it dries, proceed to the application of plaster. The wall is primed again to ensure high-quality adhesion of the insulation to the surface.

    The next stage in the process of insulating walls from expanded clay blocks is the preparation of a solution. Released today a large number of adhesive compositions, and when choosing it is worth paying attention that it is suitable for the selected insulation. The solution is prepared, focusing on the instructions on the package.

    Application of the composition and installation of plates

    The adhesive must be applied using a notched trowel, distributing a thin layer over the entire surface of the wall. There should be no empty lots. After that, the composition is applied to the plate itself - around the perimeter and in the center.

    Installation starts from the bottom of the wall, go sequentially around the perimeter of the building. With this method, all the plates in the first row will have time to firmly fix, and the load from those installed above will not move them. The evenness of the position of each plate is checked using the building level. The second and subsequent rows are performed with a shift of half the length of the plate. To do this, cut the slab in half using a construction knife.

    If in some places the sheets do not fit tightly to each other, the space is filled with mounting foam.

    Additional fixing and installation of vapor barrier

    After the adhesive solution has hardened (about a day later), the insulation is additionally fixed to the expanded clay concrete with dowels. They are driven in along the perimeter of the plates and in the center.

    When using mineral or basalt wool, a vapor barrier layer is required to protect the material from getting wet. For this purpose, special membrane films are used, which also protect from the wind. The film is fixed by placing the strips vertically. In this case, each next strip should overlap the previous one by at least 10 cm. The joints are glued with construction tape.


    Proceed to the installation of reinforcing mesh. It is attached vertically. Using a tape measure, measure the height of the wall, cut off a piece of mesh of the desired length. Apply plaster to the area of ​​\u200b\u200bthe insulation, press the mesh into it. This must be done quickly before the plaster has hardened. In order to level the surface of the plaster at the same time as pressing the mesh, it is recommended to use a facade spatula for work.

    Finishing

    Cladding after the insulation of expanded clay walls can be done using brickwork, siding installation or using plaster.

    The wall is plastered after the composition layer on which the reinforcing mesh is fixed has completely dried out. After that, the surface is primed again, they wait until the wall dries, then they start applying the starting and finishing compositions. The final stage is painting the facade.


    Second possible variant- Installation of siding. In this case, the reinforcing mesh is not required, the cladding is installed directly on the slabs. Since the "wet" method does not require the installation of battens, the installation of siding will require the installation of anchors to which the slats will be attached.

    Why is brick cladding less popular than the "wet" method? She needs to create a foundation and waterproof it. This entails additional financial and time costs.

    It is necessary to insulate the walls of a building built of expanded clay concrete blocks - this not only reduces heat loss, but also lengthens the life of the house. The cost of the materials that will be required is affordable, and the work itself is quite possible to carry out on its own.