Buildings made of aerated concrete or foam blocks, built in temperate and northern climates, require additional insulation. Some believe that such material itself is a good heat insulator, but this is not so. Therefore, it is worth considering in more detail the insulation of a house made of aerated concrete, types of thermal materials and installation stages.

The need for insulation

The popularity of gas silicate blocks is due to a number of reasons: they are lightweight, with a clear rectangular shape, do not require the construction of a powerful foundation for the house, and even a novice specialist can handle their installation. Installation of a building made of such material does not require the same qualifications of a mason as a brick house. Foam concrete blocks are easily cut with a regular hacksaw.

The composition of the aerated concrete block includes a cement-lime mixture, a foaming agent, which is most often used as aluminum powder. To increase the strength of this cellular material ready-made blocks withstand high pressure and temperature. Air bubbles inside provide a certain level of thermal insulation, but the building will still have to be insulated at least from the outside.

Many people believe that to protect external walls from cold and moisture, it is enough to simply plaster them. Plaster will perform not only decorative, but also protective function, it does retain heat a little. However, many people face problems in the future.

In order to answer whether it is necessary to insulate buildings made of foam concrete, you first need to take a closer look at the structure of the material. It contains cells filled with air, but their pores are open, that is, it is vapor permeable and absorbs moisture. So for comfortable living and efficient use of heating, you need to use heat, hydro and vapor barriers.

Builders recommend constructing such buildings with a wall thickness of 300–500 mm. But these are only standards for the stability of the building, we are not talking about thermal insulation here. For such a house, at least one layer of external protection from the cold is required. It is worth considering that, in terms of their thermal insulation characteristics, 100 mm thick stone wool or foam plastic slabs replace a 300 mm aerated concrete wall.

Another important point is the “dew point”, that is, the place in the wall where the positive temperature turns negative. In the zone where there is zero degrees, condensation accumulates, this is due to the fact that aerated concrete is hygroscopic, that is, it easily allows moisture to pass through. Over time, under the influence of temperatures, this liquid will destroy the structure of the block.

Therefore, through external insulation, it is best to transfer the “dew point” to the outer insulating layer, especially since polystyrene foam, mineral wool, expanded polystyrene and other materials are less susceptible to destruction.

Even if, under the influence of cold and moisture, the outer insulation is destroyed over time, it is much easier to replace it than destroyed and deformed blocks. By the way, this is why it is recommended to install insulation outside, and not inside, the building.

If you plan to build a cozy house in which a family can live comfortably all year round, and walls made of relatively fragile material will not collapse, then you should definitely take care of thermal insulation. Moreover, the costs for it will not be so significant, several times less than the installation of gas silicate walls themselves.

Methods

Houses made of aerated concrete are insulated on the outside on the facade, and on the inside under the final interior finishing. Don’t forget about insulating the floor and ceiling. First, let's look at ways to insulate walls from the outside.

"Wet" facade

The so-called wet façade is a simple and cheap way insulation of a building made of foam blocks, but it is also quite effective. The method consists of fixing mineral wool slabs to glue and plastic dowels. Instead of mineral wool, you can use polystyrene foam or other similar materials. From the outside, a reinforcing mesh is hung on the insulation, then the surface is plastered.

Before starting work, the surface of the walls is cleaned of dust and primed with a special composition for deep penetration foam blocks. After the primer has completely dried, glue is applied; for this it is best to use a notched trowel. There are many adhesives for installing insulation boards; they are produced in the form of dry mixtures, which are diluted with water and mixed with a mixer. An example is Ceresit CT83 outdoor adhesive.

While the glue is not dry, a sickle is applied to it so that it covers the entire wall without gaps. Then they begin gluing the insulating boards; this work should not cause problems even for an amateur. Mineral wool is applied to the glue-coated surface and pressed tightly. In this case, it is necessary to ensure that the slabs are positioned evenly and that there are no gaps between them. It is optimal to lay each subsequent row with a shift of half the slab.

Installation of insulating boards proceeds from the bottom up. It is optimal to hammer in the dowels after laying each row while the glue is still wet. For a “wet” facade, there are special plastic umbrella dowels on sale, 120–160 mm long, with a metal screw inside. They get stuck in gas silicate blocks without special effort with an ordinary hammer. They must be fastened so that the cap is slightly recessed into the insulator.

When all the slabs are installed and the umbrella dowels are driven in, you need to wait until the inner layer is completely dry, then apply a second layer of glue to the entire surface. After these procedures with completely dry You can apply decorative plaster. With a block wall thickness of 300–375 mm, together with insulation, the result is 400–500 mm.

Ventilated facade

It's more difficult option insulation of walls with gas blocks. It requires the installation of sheathing made of wooden beams or metal profiles. This method allows you to use more various finishes under siding, decorative stone or wood. For a ventilated facade, the same insulating materials are used as for a “wet” one: mineral wool, foam plastic, penoplex, expanded polystyrene.

Advantages and disadvantages

The following advantages of a ventilated facade can be noted:

• more long term insulation materials services;
• effective protection against moisture;
• additional sound insulation;
• protection against deformation of walls made of aerated concrete blocks;
• fire safety.

It is immediately worth noting its disadvantages:

• relatively short service life;
• great skill in installation is required, otherwise there will be no air cushion;
• Due to condensation getting inside and freezing in winter, swelling may occur.

Installation steps

The process of installing a ventilated facade begins with the installation of an insulating layer. Here, as in the previous version, any tiled insulating materials are used, for example, the same mineral wool. The wall is cleaned, primed in 2-3 layers, after the primer has dried, glue for foam blocks is applied with a notched trowel. Then, as on the “wet facade”, sheets of insulation are laid on the serpyanka, and umbrella dowels are attached. The difference from the first method is that glue is not applied on top of the mineral wool, but a moisture-windproof membrane or wind barrier is strengthened.

After the glue has dried, preparations for installing the sheathing begin. For example, we can consider its construction from wood. It is best to take vertical bars 100 by 50 or 100 by 40 mm, and for horizontal lintels - 30 x 30 or 30 x 40 mm.

Before work, they must be treated with an antiseptic. The beams are attached to the wall with aerated concrete anchors and with wood screws, preferably galvanized, to each other.

First, vertical beams are installed on top of the wind barrier along the entire length of the wall. The step should not be more than 500 mm. After this, vertical jumpers are installed in the same way. It is worth remembering that the same level must be maintained everywhere. At the final stage, siding or other type of decorative trim is attached to the sheathing.

Less commonly, when decorating private houses, the heavy “wet facade” method is used. For him, the foundation of the building expands, the insulation rests on it and is attached to powerful metal hooks. A reinforcing mesh is installed on top of the insulating layer and then plaster is applied, which can be covered with decorative stone.

Another option for external insulation of a house made of gas silicate blocks is finishing the outside with facing bricks. A protective layer of air is formed between the brick wall and aerated concrete. This method allows you to create a beautiful exterior of the building facade, but it is quite expensive, and laying facing bricks requires special professionalism.

After external insulation of foam block walls, it is worth starting to install internal insulation. Here it is better not to use completely vapor-proof materials, since the wall becomes clogged and the building does not breathe. Best to use ordinary plaster For interior work. The dry mixture is diluted with water, kneaded with a mixer and applied to a vertical surface, then leveled. Before plastering, do not forget about priming the walls and fixing the serpyanka.

Inside such a house, it is imperative to insulate the floor, ceiling and roof. For this you can use various methods and materials, for example, install a sheathing, inside which place slabs of stone wool or polystyrene foam, create a heated “warm floor” system, use a screed with an additional protective layer, lay rolled heat-insulating materials in the attic.

When insulating the floor and ceiling in a private home, do not forget about protecting them from moisture and steam.

Types of materials

To decide which insulation is best to choose for your home, you must not only take into account the price of the material and installation, but also know their properties.

Stone wool is traditionally used to insulate house walls, floors and roofs, sewerage, water supply and heating pipes. It is widely used for thermal insulation of buildings made of aerated concrete; it is the most popular material in “wet facade” and ventilated facade technologies. It is made from mineral raw materials, mainly basalt, under the influence of high temperatures by pressing and extruding fibers.

You can use stone wool to protect against frost when building a building from scratch or in a house that has been built a long time ago. Thanks to its structure, it promotes good air circulation, so in combination with porous foam blocks it will allow the house to “breathe”. This material is not subject to combustion: at high temperatures and an open flame, its fibers will only melt and stick together, so this is a completely fireproof option.

The thermal conductivity coefficient of mineral wool is the highest among all materials. In addition, it is made from natural raw materials, without harmful impurities, it is environmentally friendly pure material. It is strictly forbidden to get it wet; it immediately becomes unusable, so when installing it, it is necessary to use waterproofing correctly.

You can insulate the facade of a house made of aerated concrete with polystyrene foam. In terms of its popularity, it is practically not inferior to mineral wool, while it has high thermal insulation characteristics and low cost. The material consumption compared to mineral wool for the same layer is almost one and a half times less. It is easy to cut and attached to a foam block wall using plastic umbrella dowels. An important advantage of polystyrene foam is that its slabs have a flat surface, they are rigid and do not require sheathing or guides during installation.

The density of the foam is from 8 to 35 kg per cubic meter. m, thermal conductivity 0.041–0.043 W per micron, fracture resistance 0.06–0.3 MPa. These characteristics depend on the selected type of material. The cells of the foam do not have pores, so it practically does not allow moisture and steam to pass through, which is also good indicator. It has good sound insulation, does not emit harmful substances and is resistant to various chemicals. Ordinary polystyrene foam is quite flammable material, but with the addition of fire retardants its fire hazard is reduced.

A good option would be to insulate a house made of aerated concrete with a basalt slab. This material is very similar to mineral wool, but is harder and can be installed without guides, simply glued in even rows to the wall. A basalt slab is made from rocks: basalt, dolomite, limestone, some types of clay by melting at a temperature of over 1500 degrees and obtaining fibers. Its density is almost the same as polystyrene foam, it can be easily cut into fragments, and when attached to the wall it retains sufficient rigidity.

Modern varieties of basalt slabs are highly hydrophobic, that is, their surface practically does not absorb water. In addition, they are environmentally friendly, do not emit harmful substances when heated, are vapor permeable, and have excellent sound insulation.

Glass wool has been used for a long time, but has recently been replaced by other more practical and effective materials. Its main disadvantage is still considered by many to be harmful to the skin and respiratory tract during work. Its small particles easily separate and float in the air. An important advantage compared to all other common heat insulators is the low cost of glass wool.

Glass wool is easy to transport as it folds into compact rolls. This is a non-flammable material with good sound insulation.

It is best to install thermal protection from glass wool with the installation of sheathing. Another advantage is that rodents are afraid of this material and do not create their burrows in the thickness of the insulation.

Ecowool is a fairly new heat-insulating material made from cellulose, various remnants of paper and cardboard. To protect against fire, a fire retardant is added to it, and antiseptics are added to prevent rotting. It is low cost, environmentally friendly and has low thermal conductivity. It is installed in the lathing on the wall of the building. Among the disadvantages, it is worth noting that ecowool intensively absorbs moisture and decreases in volume over time.

Penoplex or foamed polystyrene is a fairly effective material for insulating walls made of foam blocks. It is a fairly hard and rigid slab with grooves on the edges. It has durability, moisture protection, strength and low vapor permeability.

In two programs from the Stroy!ka (Construction) series, expert Andrey Kuryshev shared information about the construction of houses from gas silicate blocks. This material will be very useful, especially if you plan to build walls from gas silicate with your own hands. Andrey Kuryshev talks about the following:

• Layout of a house made of gas silicate blocks. Is it necessary to insulate a house using gas silicate?


• Construction of a house from gas silicate. Laying gas silicate. Adhesive for gas silicate.


• Insulation of a house made of gas silicate


• Interior partitions in a house made of gas silicate blocks


• Roof of a house made of gas silicate blocks


• Plastering walls made of gas silicate blocks. Ventilated facade.


• Using floor slabs in a house made of gas silicate blocks


• Gas silicate and moisture


• Characteristics of gas silicate

Build!ka: Construction before winter

Construction: House made of gas silicate. We competently build and insulate a house from gas silicate blocks.
House made of gas silicate laid with glue. Internal walls are made of brick. House with shifted levels. Insulation of the foundation, foundation slab, blind area with extruded polystyrene foam slabs. How and why to separate the wood in the roof from the stone.

Stroy!ka: The truth about gas silicate

What is gas silicate? What are its properties? How to cover a gas silicate wall outside and inside to avoid moisture and related problems. Is it worth using gas silicate together with insulation?

Layout of a house made of gas silicate blocks. Is it necessary to insulate a house using gas silicate?
Large multi-level house. The enclosing structures are made of YTONG gas silicate blocks, and the internal walls are made of ordinary sand-lime brick. At first glance the building does not seem large. It's hard to believe there are 4 levels here. This type of architecture allows for the most ergonomic use of living space.

Four levels is very good. One flight of stairs passed and there was already a room. But in an ordinary house you need to go through two flights of stairs or crooked stairs.

In the basement there is a residential ground floor. It is insulated with extruded polystyrene foam around the perimeter. The foundation walls are made of blocks. Heating is installed here. Small windows have been cut. All work on this site is carried out by only three builders.

Construction of a house from gas silicate. Laying gas silicate. Adhesive for gas silicate.
How the work was carried out: We marked the site, tied a pit to the site, dug a pit, poured a slab, laid the foundation with FBS blocks, lined the walls with gas silicate (YTONG technology - seamless joint on an adhesive basis), laid floor slabs and a roof.

Building such a house was not difficult. These builders worked with gas silicate blocks and gas silicate in general for the first time. Gas silicate blocks were laid on glue. I have a positive attitude towards this technology. Previously, the dimensions were not maintained so precisely, they varied by up to 5-10 mm, so it was not possible to lay them evenly on the glue. And now laying gas silicate blocks with glue is economical and quick. The house needed 80 bags of glue. Taking into account sand and cement, concrete would be more expensive (Note: The question remains about the environmental friendliness of the glue!) In addition, I think that cold bridges are excluded (unlike concrete mortar).

Gas silicate blocks are used in two sizes. Regular blocks are 25 cm high, and above the window opening 10 cm high.

Insulation of a house made of gas silicate
Gas silicate wall 50 cm, additional insulation will not be. Gas silicate here performs a load-bearing and thermal insulation function. If this is translated into brick, then in terms of thermal insulation properties it will probably be even more than a meter. The foundation and slab below were insulated extruded polystyrene foam. The 120 mm blind area will also be polystyrene foam. The blind area serves as insulation and also allows the house to look more harmonious (a house without a blind area looks awkward). Theoretically, thermal blind areas should be done everywhere so that the cold does not reach the foundation. This is definitely necessary on heaving soils. But on sand bars it’s probably not necessary.

Walls made of gas silicate, in addition to non-vapor-transparent plasters, are afraid of non-vapor-transparent insulation, such as, in particular. When you wrap a house with it, it’s as if you are wrapping it in plastic film. If plasters have at least some vapor transparency, then EPS is completely devoid of these properties.
If you insulate a gas silicate wall with extruded polystyrene foam, an even more catastrophic situation will begin to occur. If plaster and paint still have at least some vapor transparency, although insufficient, then extruded polystyrene (EPS) has no vapor transparency at all. At certain times in winter, moisture and condensation will certainly form at the junction of polystyrene foam and gas silicate.

They wrote on my forum that they insulate houses in Siberia with polystyrene foam, after 5 years they remove it, and the whole wall is black with mold and black sludge. They are treated with chlorine and other expensive anti-mold agents, and then plastered again.

Houses made from gas silicate blocks should only be built from them! No insulation. You can budget a little on the thickness of the block. If the manufacturer recommends a 40 cm block for our climate, build from 50 cm. Then you will count on additional moisture that may occur during operation.

A vapor barrier is also used for the roof. The vapor barrier does not allow steam to pass through. Then there is insulation between the rafters, and waterproofing on top. The latter allows steam to escape from itself, but does not allow moisture from the roof to pass through. This allows moisture to roll off the roof. Mineral insulation is used basalt wool(Note: The roof can leak, so using mineral wool in the under-roof space does not make sense. After all, mineral wool significantly loses its properties when exposed to moisture).

Interior partitions in a house made of gas silicate blocks
The interior partitions are made of white sand-lime brick. Sound insulation between rooms is much better than, say, from the same polystyrene foam or foam block. When you knock on a brick like this, the sound is dull. And when you knock on it, the whole house can hear it. The walls are mostly load-bearing, but few are non-load-bearing. In addition, the exhaust shafts are made of the same brick (Note: Plus, the high heat capacity of such walls allows you to store heat in winter and cold in summer).

Roof of a house made of gas silicate blocks
Ridge seal (shows foam-like tape). The roof will be ventilated to the ridge. To prevent midges from flying, this material is used. It will fit well and act as a filter. There will also be a mesh near the rafters (for a ventilated gap).

Ordinary roofing felt was used as waterproofing. Metal parts waterproofed to the tree. Previously, our grandfathers made wooden nails from oak. They drilled and hammered them.

Wooden beams for the roof. Lathing boards, rafter system. Used ordinary tree(pine, spruce). The wood is impregnated with a fire-bioprotective composition. The powder dissolves in water. Wood can be soaked, can be well treated with a brush or spray.

The roof in this house is made using classical roofing technology. The tree here is separated from the stone base by roofing felt. In the program "" Andrey Kuryshev explained why and how to properly separate wood from stone.

Plastering walls made of gas silicate blocks. Ventilated facade.
Construction plaster ST 29 to go through the seams (caulk). This repair composition is used after installation.

A mesh is used to putty the facade. There will be decorative tiles up to the window.

As befits gas silicate, it is laid on a thin glue joint and plastered from the inside. The thermal properties of gas silicate are not bad, but they are very dependent on humidity. We have a wall made of gas silicate blocks. The main danger in a house made of such blocks is a change in the humidity conditions in the house in winter. At home during this period it is warm, say +20 degrees. In the warm air of a house, 1 m3 of air at a humidity of 50-60% contains approximately 20 grams of steam. Outdoors at -20 degrees and humidity 50-60%, water vapor in 1 m3 of air contains about 2 grams. At the same time, steam tries to move from where there is a lot of it to where there is little of it. This is called vapor permeation pressure. The task is to create a barrier inside the room so that this steam enters the wall as little as possible. To do this, the inside of the room is plastered. We see damp spots on the walls. The walls have just been primed. The soil binds the dust on the wall. Without primer, the wall is very dusty, so the putty may fall off. The soil also improves vapor permeability properties. Ground - glue solution which prevents the penetration of moisture. Then this wall will be plastered, painted or wallpapered. It's better to do interior wall as less vapor permeable as possible. To do this you can glue vinyl wallpapers, paint with paint that does not conduct moisture well. Bathrooms and toilets are tiled. Those. We create as many obstacles as possible for moisture. A normal house must have ventilation to allow moisture to escape.

If steam enters the wall, but it still enters, then outside the possibility of unhindered exit to the outside must be ensured. If the outer layer is less vapor-tight than the inner one, then the steam will enter inside and reach outer wall. The latter is cold in winter, there is a point in this wall called the dew point. It depends on the temperature inside the wall and the air humidity in it. A big mistake is to plaster a gas silicate house on the outside with cement hard plaster and paint it with some kind of vapor-proof paint. Then we will seal the wall from moisture.

I saw a sauna that was not vapor-insulated from the inside, but was simply insulated. The house was plastered with hard plaster and painted with a good paint that was clearly bonded to the surface. Over the course of several years, under a layer of plaster, the gas silicate cracked. Moisture accumulated near the outside of the wall. It froze and expanded the gas silicate. By knocking on the plaster, one could determine that it would collapse.

In general, houses made of gas silicate require a ventilated facade.

A ventilated facade is a system of steel or aluminum frame mounted directly on the facade of a building and lined with outside decorative panels.

The gas silicate remains uncovered from the outside. Some kind of slats are placed along the outer walls, on which the facade is hung (boards, siding, ceramic plates, plastic,...). Air should flow freely under the façade. Moisture should come out freely and unhindered from the unclosed wall and come out and erode.

Using floor slabs in a house made of gas silicate blocks
Many people are afraid that gas silicate is fragile. They have been building from gas silicate for a long time. But earlier the floor was made of wood, and in this case the floor was made of floor slabs. I stood on a cube with a side of 10x10x10 mm myself, there were no dents. It’s also scary that the nail is hammered in freely. But calculations show that everything is fine.

Gas silicate and moisture
They are afraid that gas silicate or aerated concrete will become saturated with moisture from inside. The surface itself does not absorb moisture. Just as she came in, she came out. If you cut the block, then the inner side already takes in moisture well. But there will be plaster on the inside. The outside will also be light plaster, so if it rains, the moisture will come out.

Characteristics of gas silicate
Gas silicate at low volumetric mass 500 kg/m3 has a compressive strength of 20 to 40 kg/cm2 due to autoclave processing, grinding of components and mechanical hardening. Shrinkage of gas silicate is up to 0.47 mm per meter, foam concrete - up to 5 mm. Gas silicate is used for masonry load-bearing walls cottages up to 4 floors, wall filling of frame high-rise buildings. Permissible load per 1 meter of wall 40 cm thick is 112 tons.
Air enclosed in uniformly formed voids in cells with a diameter of 1-3 mm provides exceptional thermal insulation and heat-accumulating effect, superior to brick by 3-5 times. The high thermophysical properties of gas silicate allow houses to retain heat well, make the surface of the walls warm to the touch, and do not require additional thermal insulation material. Due to the large number of separated voids, the house has a very good heat storage ability and cools down slowly.

Another company that produces blocks High Quality in Lipetsk, is the Lipetsk Plant of House Construction Products (LZID). LZID has organized the production of aerated concrete blocks of the world famous Hebel brand. The company has been producing small wall aerated blocks since 1995. In 2004, the production line was equipped with equipment for hermetically sealed packaging of blocks - the finished product is packaged in a special shrink film, which allows storage gas concrete blocks outdoors much longer than unpacked ones.

Text notes on program materials "

How to insulate gas silicate blocks from the outside?

Recently, the use of gas silicate blocks has become popular in the construction industry. It's quite cheap, fast and convenient. In this regard, we will consider why insulation is needed for buildings made of this material, how to properly insulate it, and what is the best way to insulate a house.

Reasons for insulation

As you know, gas silicate is a porous material, which makes it warm. The thermal conductivity coefficient of cellular concrete (gas silicate) depends on the brand of this product (more details in the table), but in general the thermal conductivity of gas silicate blocks is very low and therefore, in theory, it does not require insulation. But it's not that simple.

Due to their structure, the blocks are very easily saturated with water. This leads to microcracks appearing. As a result, the lifespan and effectiveness of the material is significantly reduced. Insulating a house using gas silicate blocks from the outside solves this problem. External insulation also saves usable space inside the house.

Insulation methods

So, how to insulate a house made of gas silicate blocks? There are several ways:

In this case, the insulation is glued to the walls of the house. This method is quite easy to perform even for those who have little experience in construction.

This method involves a ventilated system and is more difficult to implement than the previous method.

Materials

How to insulate a house made of gas silicate blocks? There are several materials that are used as insulation for gas silicate blocks:

• Styrofoam;
• mineral wool;
• thermal panels.

Let's talk more about these materials.

Styrofoam

Foam plastic is one of the most common materials for insulating facades. Gas silicate walls are no exception. Despite its energy saving, it is also environmentally friendly and fireproof. Those who decide to insulate with foam plastic also note that it is quite cheap and easy to install.

What kind of foam should you use for such work? Everything depends on your material well-being, but quite experienced specialist will say that it is better to make a layer of foam 100 mm.

An experienced specialist will say that it is better to make a layer of foam plastic 100 mm thick.

Since the method of insulation for polystyrene foam is a “wet facade,” the wall surface should be cleaned of debris and primed with a deep penetration primer. Experts advise repeating the priming procedure about five times.

Re-priming should only be done when the previous layer has dried.

The next step is to paste the foam directly onto the gas silicate blocks. For this, a dry glue mixture is used. In the instructions on the packaging of this substance you can find all the necessary details for working with the glue.

Usually in country houses gas silicate blocks of the D200 brand are used, so do not skimp on the foam glue and apply it to the entire surface. Thus, the thermal insulation will fit tightly to the wall, which will have a beneficial effect on the insulation.

Foam sheets should be attached from the bottom up and only when the bottom sheet is already firmly glued. Why? This will help prevent the sheet from slipping, breaking the level. For additional strength, you can install an L-shaped profile below, leveled.

In addition, foam plastic slabs should be fastened in the same way as brick laying is done, that is, with a shift of half a sheet. This will also increase the strength of the structure.

The gaps between the plates should be covered with glue or blown out polyurethane foam. You can also do it a little differently. As mentioned above, it is recommended to make a layer of foam 100 mm. However, to achieve this, it is not necessary to buy slabs of such thickness. 50 mm slabs will be sufficient, but glued in two layers so that the joints do not coincide. This will help you to worry less about blowing in seams and the insulation of gas silicate will be of better quality. The downside is that this method will require a little more money.

When the glue has dried and set well, the foam is additionally fixed with plastic umbrella dowels. After this, a layer of glue is applied, into which the reinforcing mesh is embedded, and then, after it dries, another layer of glue is applied.

The finishing touch is applying plaster and painting or decorative plaster. It all depends on your taste.

Mineral wool

Gas silicate is a vapor-tight material, therefore mineral wool, whose vapor permeability is a well-known fact, is suitable for insulation. It also does not burn and has soundproofing properties.

But there are also disadvantages. For example, cotton wool absorbs water and with any serious damage to the plaster layer or a crack, it loses its thermal insulation. Therefore, not all experts agree on whether it is possible to insulate facades with it.

We cannot say directly whether it is possible or not to insulate your house in this way, but in any case, if you still decide to choose mineral wool as insulation, its algorithm of actions is similar to that of attaching polystyrene foam.

To begin with, it is worth clearing the walls of debris and dust by priming the surface of the walls made of a gas silicate block. And in this case, you shouldn’t limit yourself to just one time. It's better to repeat several times.

Installation of wool slabs is carried out in the same way as for foam plastic. The first row is leveled and attached to the wall using glue and dowels, which are fixed at the joints and in the middle of the slab. Next row It is also installed with a half-slab shift so that the seams do not coincide.

After installation, you should give the insulation time to stand and dry, and only then can you continue work.

The next step is application to mineral wool. A mesh is attached to this glue, which is slightly recessed. You also need to overlap 1 cm at the joints of the mesh. After the glue has dried, apply another layer.

The final stage is, of course, plaster. At the same time, the house “breathes”, since the plaster allows steam to pass through. However, as already mentioned, be careful, since damage to the plaster layer will have a bad effect on the thermal insulation.

Thermal panels

What are thermal panels? This is a system of insulation, moisture-resistant boards and facing tiles. Typically the insulation is foam or mineral wool. well and facing tiles allows you to do without putty.

In addition, the tile protects gas silicate from mechanical damage and moisture, since it is usually made to look like brick or stone. Thus, thermal panels combine beauty and reliability.

This type of insulation refers to a “ventilated facade”. Although some experts say that with such insulation the wall “does not breathe,” but ventilation holes under the canopy and in the basement of the building this issue is easily resolved.

How is insulation done with thermal panels? Below is the algorithm of actions

Since thermal panels are heavier than polystyrene foam, the presence of an L-shaped strip under the starting row is mandatory. The plank is leveled and fixed with anchors in increments of 200 mm.

For aerated concrete, special dowels are used, the edges of which, while in the block, expand under the influence of the mechanism. This is important, because without it they simply will not hold on.

After installing the plank, you should start next stage, namely the installation of the sheathing. It usually consists of galvanized metal UD profiles or wooden beams. The profile is installed on the starting strip and vertically attached parallel to the wall to the hangers. The suspensions are mounted with anchors at a distance of 500 mm from each other.

Thus, we sheathe the entire perimeter of the house. We install two strips on the corners and slopes, since this is necessary for installing the corner elements of thermal panels. At the level starting bar, below along the plinth you need to install a drip.

We close the space between the profiles with mineral wool or foam plastic boards. However, do not forget about the ventilation gap of 20-30 mm. We attach thermal panels to the profile using self-tapping screws. As in the case of foam plastic slabs, we install the tiles with the same shift. Well, the tightness is ensured by grooves for connecting the panels.

After finishing the work, all gaps are sealed with foam, and the screws and seams are rubbed down.

Also, instead of thermal panels, you can use siding. The principle of its installation is the same as that of thermal panels. However, under the siding, in addition to the insulation, a windproof membrane is installed.

So, today we looked at how to insulate a house from gas silicate from the outside. We also learned how to insulate gas silicate blocks from the outside and what materials can be used for this. How to insulate the house is, of course, up to you, but we hope that this information will help in creating a cozy, insulated home.

We wish you success in your endeavors!

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What is the best way to insulate gas silicate?

A house made of gas silicate blocks is considered one of the best in terms of thermal insulation. This is mainly due to the structure of the material, which is almost 90% air. The rest is a mixture of sand, cement, limestone and water using a certain technology. It is not always necessary to insulate a house made of aerated concrete due to the characteristics of the material, however middle lane Our country is dominated by fairly severe winter frosts.

They do not allow you to do without insulating a house made of gas silicate blocks. This is a natural process. How to insulate a house from gas silicate from the outside will be discussed further.

How can you insulate gas silicate?

Insulating a house made of gas silicate blocks involves the use of a wide variety of materials. Most often, however, two types are used - mineral wool and polystyrene foam. It's worth talking about the advantages and disadvantages of both technologies in more detail.

When insulating a house made of gas silicate blocks with your own hands using polystyrene foam, do not forget about the ease of installation of this material. It can be mounted with ease, and a wide variety of tools can be used to cut it. Some use a regular construction knife for these purposes, while others use a hacksaw.

It all depends on the desires and capabilities of the person. At the same time, foam plastic also has a lot of disadvantages that make this technology less in demand. The fact is that polystyrene foam has low air permeability. At the same time, the main material, namely gas silicate blocks, have a higher indicator of this characteristic.

As for mineral wool, it is more acceptable as insulation for a house made of gas silicate blocks. It's simple perfect option, which has become widespread today. Mineral wool perfectly allows air to pass through and keeps it warm. This material is a little more difficult to install, but the characteristics of the walls will always be at their best.

There are other materials that are widely used for these same purposes, but they are used much less frequently than those discussed above.

Tools and materials

So, now it’s worth talking about what you might need to insulate a house from gas silicate blocks with your own hands. Here you will need to acquire the following:

• thermal insulation material, in this case we will talk about mineral wool;
• dowels;
• glue;
• perforated corners;
• container for diluting glue;
• building level;
• fiberglass mesh;
• perforator;
• putty knife.

Basically, this should be enough to carry out the entire range of events.

Now you can proceed directly to insulating the house from gas silicate blocks. First you have to prepare carefully. The wall is cleaned of various dirt, dust, and all defects are eliminated. This is done to improve the adhesion of the mineral wool surface through the use of glue.

If there are large defects on the wall, then they also need to be eliminated. This is done through plaster and primer. Only careful preparation surface will allow all work to be carried out as efficiently as possible. At the level ground floor it is worth installing the frame.

It will serve as additional support for the insulation. Beacons should be placed at the corners of the house. Next comes the actual process of attaching the mineral wool to the wall. First you need to coat the surface itself and the cotton wool with glue. This will improve the properties of the materials to be fastened. During installation, it is imperative to avoid the formation of cross-shaped joints.

Don't forget about additional fastening material. For these purposes, special dowels are used. They are umbrellas. They should be placed around the perimeter of the mineral wool slab, and they can also be additionally fastened in the center.

It is worth noting the fact that mineral wool itself is soft material, which should be further strengthened.

It is for these purposes that fiberglass mesh is used. Glue is first applied to the surface of the insulation, and then the fiberglass mesh itself is installed. Another layer of glue is additionally applied on top of the mesh.

After the process of reinforcing the insulation is completed, it is imperative to additionally insulate the corners of the building, door and window openings. This is done extremely simply. For these purposes, the same perforated corners that were purchased earlier are used.

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Insulation of a house made of gas silicate

In the previous article we talked about insulating walls with cardboard. Today we will talk about buildings made of foam concrete. One way to preserve heat is to insulate the house from the outside using gas silicate blocks. Gas silicate blocks have high heat transfer properties, so you should immediately protect your home from heat loss. Below you can find the answer to the question: “How to insulate a house made of gas silicate blocks?” Following the method of insulating a house from gas silicate blocks will help to avoid mistakes in the process. After all, the finishing of walls made of gas silicate should be carried out taking into account factors such as climatic conditions, the thickness of the blocks and the specifics of construction. You still need to decide on the material to work with.

Why is it necessary to insulate houses made of gas silicate blocks?

External insulation is always better than internal insulation, since the dew point moves not into the wall, but into the insulation layer.

Before insulating gas silicate blocks, which are cellular concrete, you need to familiarize yourself with their characteristics. On construction market gas silicate has gained great popularity for its high performance properties. This material is durable, environmentally friendly, soundproofing properties and economy. Savings are ensured by heat retention. A building made of cellular concrete reduces heating costs by up to 40%.

But it is worth considering such a disadvantage as the ability to transmit moisture. Gas silicate perfectly absorbs liquid due to its porous structure and masonry joints, therefore the wall should be protected. The solution to this problem is to insulate the gas silicate from the outside.

Existing methods of insulation

Traditional materials for moisture protection are:

• extruded polystyrene foam;
• mineral wool;
• Styrofoam;
• plaster mixtures.

If we talk about new products that have appeared relatively recently on the market building materials, then we should mention thermal panels. They not only provide excellent protection from moisture, but also give an excellent appearance to the building. True, the cost is higher than that of conventional insulation. To insulate a wall made of gas silicate blocks you will need:

• one of the above materials for thermal insulation;
• glue;
• container for diluting glue;
• dowels;
• drill;
• level;
• fiberglass mesh;
• building level;
• putty knife;
• plaster;
• primer;
• perforator;
• dye.

This is the main thing you need to have before starting insulation. Then you need to do everything preparatory work, which will ensure high-quality results. To begin with, the wall is cleaned of dirt and dust. Is it necessary to insulate a house made of gas silicate blocks without preliminary cleaning? It is not recommended, because thorough cleaning ensures that the glue adheres to the wall insulation.

You can clean the wall using a spray bottle. This will ensure thorough dust removal. After cleaning, all visible surface irregularities and defects are eliminated. For this, plaster is used, and then a primer. The primer is applied with a brush, which will serve as an additional means of removing debris. If uneven surfaces are left, the insulation may be damaged.

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Necessary information about how it works hydrogen torch for heating you will find here.

The use of mineral wool for insulation

The mineral wool is glued to universal construction adhesive and additionally nailed with dowels.

Gas silicate, as a vapor-permeable material, is preferably insulated because it also allows steam to pass through. Therefore, insulating gas silicate with mineral wool will extend the life of the walls and eliminate additional problems when internal insulation. After all, with a vapor-tight external insulation the house will have to be equipped with additional ventilation. Insulation with mineral wool provides additional sound insulation and gives an attractive appearance to the structure. In addition, mineral wool has non-flammable properties. This material is purchased in slabs.

Work on insulation with mineral wool consists of the following stages:

• installation of mineral wool slabs;
• then you should leave the insulation for gas silicate blocks for a while so that it can stand;
• installation of reinforcing mesh;
• primer is applied;
• plaster is applied;
• Painting is carried out, but only after the plaster has dried.

Leave a gap between the plates of no more than 5 mm, otherwise cracks will appear.

A level is used to lay the first row of slabs evenly. They are installed according to the principle of brickwork, so that their seams do not coincide. They are attached to the wall using glue, which is used according to the instructions indicated on the package. Then additional fixation is carried out with dowels: in the middle of the slab and at the joints. A layer of glue is applied to the mineral wool, in which the mesh is embedded. It is necessary to make an overlap of 1 cm. After drying, a second layer of glue is applied. Plaster is a vapor-permeable material, so its application does not block the passage of steam in mineral wool and gas silicate. The house continues to breathe.

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If we talk about the economic component of heating in diesel fuel, then reviews insist on the significant benefits of installing an oil-fuel boiler. You will find details here.

How to use expanded polystyrene to insulate a gas silicate house from the outside?

Concrete blocks can be insulated with polystyrene foam; the thickness of the insulation should be calculated based on the climate zone.

Expanded polystyrene is a white insulating material that consists of 98% air, enclosed in thin cells of polystyrene foam. But is it possible to insulate gas silicate foam with expanded polystyrene? If you insulate the house correctly, then it is possible. Expanded polystyrene has good thermal insulation properties at minimal cost. Also read: " Technological features insulation of facades with polystyrene foam."

This material is environmentally friendly, fireproof and durable. It also has high energy saving rates. A foam thickness of 3 cm corresponds to 5.5 cm of mineral wool.

Foam boards are used for work. Insulating a house with this material is done as follows:

• slabs are installed;
• after that they should be left to settle for a day;
• tightened with dowels in the corners and in the middle;
• reinforcing mesh is attached;
• plaster is applied;
• The insulation is being painted.

To avoid the glue drying out, apply it only to part of the wall (for the bottom row of slabs).

Expanded polystyrene is laid using glue. A level is used for even laying, and the slabs are lightly pressed to adhere to the wall. The seams of each row should not match; there is no need to leave a gap between the plates. This will ensure reliable adhesion. For high-quality reinforcement, the corners of the building are first strengthened, and then the rest of the surface. You need to move from top to bottom. Subject to such technology and obtaining good result, the question of whether gas silicate can be insulated with foam plastic no longer arises.

Insulation using thermal panels

Thermal panels - aesthetics and thermal insulation in one bottle.

Thermal panels for insulating walls made of gas silicate blocks are a system of components such as insulation, cladding tiles and a moisture-resistant slab. The insulation can be in the form of polystyrene foam or polyurethane foam. The moisture-resistant board is the structural layer, and the facing board allows you to avoid work at the final stages - puttying and painting. Installing thermal panels greatly simplifies the insulation process. Thermal panels are installed on the wall sheathing, and not on the wall itself.

The sheathing is made of galvanized steel and is attached to the wall using a screwdriver, hammer drill, self-tapping screws and dowels. The design consists of L-shaped strips, hangers, and U-shaped profiles. After installation is completed, insulation – expanded polystyrene or mineral wool – is placed into the frame made of profiles. Then thermal panels are attached to the structure profiles.

How to insulate a bathhouse made of gas silicate blocks?

Bathhouse as a room with high humidity, requires additional thermal insulation. But how to properly insulate a bathhouse made of gas silicate blocks? It should be taken into account that materials for insulating a bath should not emit harmful substances at high temperatures. Before insulation, it is necessary to apply a special impregnation to the wall. For a bathhouse, basalt insulation in the form of cotton wool is suitable as external insulation; polystyrene foam is also used. Also read: “Some aspects of floor insulation in a bathhouse.”

Regardless of the protective material, it is necessary to leave a ventilation gap to dry the heat insulator.

Insulation of a bathhouse made of gas silicate blocks is carried out in stages:

• protective material is attached;
• the sheathing is installed;
• the sheathing is stuffed (using clapboard).

Such materials for insulating the outside of a house made of gas silicate, such as mineral wool or polystyrene foam, are used equally often. But which one should you choose? Both insulation materials have their advantages and disadvantages. If we compare them, then:

• low cost of materials;
• polystyrene foam has good thermal insulation properties, and mineral wool has a higher thermal conductivity coefficient;
• foam is more durable;
• polystyrene foam has increased flammability, while the second option is non-flammable.

Both options are good in their own way, but what is the best way to insulate gas silicate blocks? If we are talking about choosing a material for insulating a bath, then it is better to choose expanded polystyrene and its derivatives, because mineral wool absorbs more moisture that arises due to a large temperature difference. The cost of both materials is quite reasonable. A higher price will be for insulation using thermal panels. But as a result, the house will have a more attractive appearance. The installation process of thermal panels can be seen in the video:

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How to insulate a house made of gas silicate blocks from the outside?

If you insulate a house from gas silicate blocks from the outside, you can achieve a very good effect in terms of saving on heating the room. This is not a complicated and not too expensive process that will help you save good money on heating.

Gas silicate blocks: what are they?

Gas silicate blocks are one of the new building materials for the construction of walls. It is characterized by high heat and sound insulation, lightness and large dimensions. They also have a low price. But many companies inflate prices both for them and for their laying, so always find out prices from different sources, and, when hiring workers, prices for laying gas silicate blocks. Such characteristics of gas silicate blocks make it possible to quickly erect energy-efficient buildings, but they are not highly durable.

Why insulate a house from gas silicate blocks from the outside?

Many people ask the question: “Why insulate such a house if it will already be warm?” The goal is not only to increase heat conservation, but also to provide special protection for gas silicate blocks, which will significantly extend the life of your home.

Gas silicate blocks have low resistance to moisture. They absorb it and, when frozen, can form microcracks, which reduce their effectiveness and strength. On average, this material is designed for 200 freezing cycles. During a winter with unstable weather, more than 20 such cycles can occur, which means that the walls will last you about 10 years. Insulating the outside using materials that absorb moisture helps to avoid these very processes, which will significantly extend the life of the house.

Such buildings are best insulated in two layers. The first is an insulating material that can absorb moisture, and the second is an external one that can withstand atmospheric influences.

As an insulating material the best option is the use of isover. Isover is a modernized glass wool, which consists of organic fibers, which, in turn, are capable of releasing and absorbing moisture in significant quantities. Its peculiarity is that moisture is retained quite strongly, so that nearby surfaces remain almost dry.

Foreman's advice: some suggest using foam plastic as insulation. This option is not bad, but is not suitable for such buildings, since the foam plastic does not absorb moisture, but, on the contrary, can lead to its accumulation, which will only speed up the process of destruction of the blocks..

The second layer can be a wide variety of materials, all of which are suitable for outdoor use. These can be plastic panels, wood or special plates made from complex polymers. The choice always remains with the consumer. It all depends on desire and financial abilities.

One common option is to use plastic panels. They have a relatively low cost and look beautiful. There are a large number of colors, which allows you to decorate the outside of the house to suit the taste of any person.

Foreman's advice: You can save money on outer skin, but in no case should you save on isover, because the effect of insulation and protection of your walls will depend on it.

The insulation process occurs as follows:

1. Creating a frame outside the house - a frame is made to fix the insulation and plastic panels.
2. Strengthening the insulation in the frame - it is fixed so that it fits snugly against the wall of the house and has no cracks or gaps. Thus, the ingress of moisture onto the wall is almost completely eliminated and the amount of condensation that forms on the walls during temperature changes is minimized.
3. Sewing the frame with external material is carried out so that there are no holes and cracks, which ensures additional protection and simply provides a beautiful view.

Some materials for the top layer of insulation require additional finishing. Accordingly, you will need to select the type exterior finishing to complete.

How much can insulating your home save?

If a house made of gas silicate blocks is relatively ordinary houses more economical by 20-25%, then a house whose walls are insulated from the outside gives savings of up to 40%.

Such a house with insulation will help you reduce heating costs by almost 2 times, which is a pretty good indicator today.

How much does it cost to insulate a house like this?

The cost of insulating a house will depend on the choice of materials. When choosing materials, it is worth comparing materials based on their effectiveness in terms of thermal insulation, comparing prices in various stores and on the Internet, because the price from different suppliers can vary up to 20%.

No matter how much it costs you to insulate your home, it's peanuts compared to how much this home improvement can save you.

Every day, with every mastered cycle, the house built according to the project with FORUMHOUSE is closer to becoming a dream come true for one of the families of our craftsmen. You can follow each stage of work, and this moment Insulation of building envelopes with mineral wool is already underway. This article will cover all aspects of the process, not only using the example of our home, but also the technology itself as a whole. Professionals reveal their secrets in a master class format for everyone:

• What determines the need for wall insulation?
• What determines the choice of insulation?
• Technology of insulation of enclosing structures stone wool.

Why is insulation necessary?

Aerated concrete has a porous structure, due to which it is characterized by reduced thermal conductivity - for a dry structural block this coefficient varies between 0.096-0.14 W/(m °C), depending on the density. However, in masonry, even with a minimum thickness of the glued joint, the thermal conductivity of aerated concrete increases.

This occurs due to an increase in humidity, and due to armored belts and jumpers, and due to a variety of metal fasteners.

If, in accordance with SNiP, we use the method of temperature fields, then, taking into account the derived coefficient (0.7), the thermal resistance of a wall of standard thickness will be less than that specified in the standards.

We get: 3.65·0.7=2.55 m²·°C/W, against the required 3.13 m²·°C/W (for Moscow and the region). That is, in a house made of aerated concrete blocks 375 mm thick, the walls without additional insulation will actively release heat, which will entail an increase in heating costs. Therefore, in order to get an energy-efficient aerated concrete house, which in the context of constant growth of energy tariffs is one of the main tasks for private owners, it will be necessary to create a thermal circuit around the entire perimeter, and not just protective and decorative finishing. External insulation of facades is considered the most effective.

Polina Nosova Leading Technical Specialist TechnoNIKOL company

External insulation is preferable due to several factors:

• preservation usable area Houses;
• protection of walls from temperature fluctuations;
• increase in service life load-bearing structures due to the shift of the dew point (the area of ​​probable condensation) into the thermal circuit.

Why is it preferable for aerated concrete blocks?

The modern market of thermal insulation materials pleases with an abundance of offers for any design and budget; another thing is that not every insulation will be effective when applied to an aerated concrete base. The main principle of creating multi-layer enclosing structures is to increase the vapor permeability of each subsequent layer, starting from the inside. Despite the fact that disputes over the “breathing” of walls do not subside, steam is one of the products of our vital activity, and a certain part of it is discharged through the walls. For insulation of aerated concrete, which is characterized by high vapor permeability, materials with even greater “throughput” are indicated, and mineral wool meets this criterion.

Two types are most in demand facade systems– “wet” facade with thin-layer finishing plaster and a hinged ventilated facade. In the first case, steam will be discharged from the walls into the insulation, and from it through a few millimeters of the reinforcing and plaster layer. In the second, the steam will be drawn out through a ventilation gap of several centimeters between the insulation and the facing screen.

High-strength slabs are used for plaster, and lightweight slabs with low compressibility are used for ventilated facades.

But if thin layer plasters can be applied to other substrates, then in ventilated facade systems, fire safety standards allow the use of exclusively non-flammable heat insulators, and the NG group is only for mineral wool.

Polina Nosova

The fire safety of a home can be increased by using non-flammable thermal insulation - the melting point of stone fiber is more than 1000⁰C. In the event of a fire in a private house, such intensity is reached a couple of hours after the fire, this time is enough to save both household members and valuable property. It is important that even melting is not accompanied by the release of toxic gases and increased smoke formation.

Technology of insulation of enclosing structures with stone wool

The ventilated facade system with siding cladding is one of the most popular among private owners, as it allows you to level out all base errors, and is also available in terms of independent implementation. If over time, under the influence of heaving forces or for other reasons, cracks form in the masonry, the hinged facing screen will not be damaged. And given the fragility of aerated concrete and its requirement for strict adherence to technology, many self-builders prefer cladding as it is more durable finishing layer. Insulation of aerated concrete walls with stone wool before finishing with siding or other facing material is carried out in several stages.

Preparation

When insulating during the reconstruction of an already in use building, all functional and decorative elements are removed from the walls, the surface is cleaned of dirt, and, if necessary, primed. If there is any doubt about bearing capacity, the base is checked by tapping with a hammer. Severe unevenness must be removed (protrusions) or repaired (depressions). When insulating during the construction process, the remaining mortar is removed from the walls. If there was heavy rainfall before work, you need to let the box dry.

Marking

Before installing the sheathing, markings are applied to the wall using a level or level, along which the frame elements will be attached. The distance between the vertical beams of the sheathing depends on the dimensions of the insulation.

Polina Nosova

So that the slab fits flat, without the formation of cracks and without deformation, and fits tightly to the wall, vertical axes mark at a distance of 10-20 mm less than the width of the insulation (length, when laid horizontally). If the width is 600 mm, the clearance distance (between the inner edges of the beam) should be 580 or 590 mm.

Installation of vertical racks

Since the complete absence of heat leakage through cold bridges is guaranteed only by two-layer insulation with overlapping joints, first a vertical sheathing is assembled on the wall according to the markings. The thickness of the beam should correspond to the thickness of the slab, usually it is a 50x50 mm beam. The racks are fixed to aerated concrete using special fasteners, since for light cellular concrete Regular dowel nails or self-tapping screws used on other substrates are not suitable.

Laying slabs in a vertical frame

The thickness of the layers is selected based on thermal engineering calculations; for most regions, a total thermal insulation thickness of 100-150 mm is sufficient. The absence of shrinkage and high elasticity of the slabs make it possible to simplify the technology and install mineral wool without additional fixation, laying it between the beams. If necessary, the slabs are trimmed with a knife or hand saw with fine teeth. If, when assembling the sheathing, it was not possible to maintain the required distance, large gaps can be filled with a piece of slab.

Installation of horizontal racks

After laying the first layer, markings are applied under horizontal frame, also using a level or level.

The distance between the posts also depends on the dimensions of the slab minus the compaction; the dimensions of the beam are selected to match the thickness of the slab.

The location of the second row of timber is made horizontal due to the fact that the further frame for the facing material will be attached to it in a vertical position with a pitch of 400 mm under the siding.

Laying slabs in a horizontal frame

Thermal insulation slabs are laid sideways, with offset seams, which allows you to completely get rid of cold bridges, even taking into account the use of metal fasteners when installing vertical racks.

Protective layer

To protect the insulation from atmospheric influences and the unhindered removal of condensate, a vapor-permeable, moisture- and wind-proof membrane is laid on top of the thermal circuit.

Despite the prevailing opinion that the feasibility of insulation is questionable, since the costs will significantly exceed possible energy savings even in the long term, heat calculations and practice prove the opposite. Aerated concrete house, insulated with stone wool, is not only comfortable, but also economical living.

Gas silicate is a foamed material with a porous structure, which is obtained by combining white lime, quartz sand, water and aluminum powder in an autoclave oven. In Russia, unlike Europe, mass construction of block gas silicate houses began recently. Insulate such a building or make do with wall decoration protective coatings, depends on the climatic zone, the thickness of the material and the specifics of construction.

Do gas silicate blocks need to be insulated?

Gas silicate material is a good heat insulator. The air layers that are retained in its pores prevent the penetration of cold air currents into the house. At high-quality installation Using special glue, the blocks fit as tightly as possible to each other. Adhesive layer very thin, so the total area of ​​all cold bridges will be small.

Mineral wool insulation of walls made of gas silicate blocks, where half-brick masonry is used as a facing material, will be reliable, durable and environmentally friendly. Between masonry and gas silicate wall a special ventilation gap several centimeters thick is tripled. Entrust all work to the professionals of the Project company, who thoroughly know all the intricacies of this work.