Insulation density: what is it and which one to choose. What is the importance of the density of the insulation when choosing a material? Density 200 kg m3 high or low

There is a wide range of thermal insulation materials on the market, which differ from each other in raw materials for manufacturing, production method and purpose. The method of work determines such an indicator as the density of the insulation.

Insulation density is a value that determines the mass of one cubic meter of material. For different thermal insulation materials, this indicator is different.

This parameter of the insulation is determined by the purpose of thermal insulation.

Density and its effect on material properties

Since the heat-insulating material has a different density, there are several types of it:

• especially light;
• easy;
• middle;
• dense (hard).

Density affects the following indicators:

• thermal conductivity;
• noise reduction;
• bearing capacity;
• installation method.

In any heat-insulating material, air is the main heat-insulating component. It can be in its natural or discharged state. The better it is isolated from the environment and the more it is contained in the insulation, the higher the thermal conductivity of the material.

The lower the breathability of the insulation, the better it absorbs noise. A heat-insulating material that has an increased density will absorb sound better even if this is not its main purpose. But since in some heaters the density index reaches 150 kg / m³, there is a large load on the floor structure. Therefore, it is better to purchase a specialized noise-absorbing material.

Too light insulation should not be used in areas that will be subjected to high loads. At low strength characteristics, the material will deform. Therefore, thermal insulation with a density of at least 150 kg/m³ must be used.

It is more convenient to work with a lighter, i.e. less dense insulation. However, the choice of density depends on the location of the material. For laying it between the lags of the roof, light and soft thermal insulation is suitable, and for walls it is advisable to choose a denser one in order to avoid its slipping.

The choice of insulation density

Before deciding which density of thermal insulation to choose, it is necessary to determine where it will be installed. If wall insulation is planned, the type of cladding plays an important role. It determines the type and density of the heat insulator. So, for a residential building, it is recommended to use basalt wool, which has low thermal conductivity, high fire resistance and environmental friendliness.

For facing with siding, a basalt heat insulator with indicators of 40-90 kg / m³ is suitable. The higher the thermal insulation is, the higher the indicator should be. If the surface will be plastered, then you need to choose a special thermal insulation for facade work. The density should be 140-160 kg/m³. In these works, special elements are used that have high rates of vapor permeability and tear strength. For interior work, a heat-insulating material with a low density is used.

In roofing work, the choice of insulation depends on the type of roof. If the roof is pitched, choose a heater with indicators of 30-45 kg / m³. For attic insulation, the indicator should be at least 35-40 kg / m³. A flat roof must withstand the heavy loads exerted by snow, wind and other atmospheric phenomena. Therefore, in this case, thermal insulation with a density of at least 150 kg/m³ should be used if mineral wool is used. For expanded polystyrene, this figure should be no more than 40 kg / m³.

To isolate the floor from the cold, you should choose a material whose mass pressure per unit volume is sufficiently high. However, if it is planned to lay the material between the lags, loose insulation can be used. The lags take on the entire load, and the thermal insulation is not tasked with withstanding the pressure exerted.

In interior partitions, the heat-insulating material also performs a soundproofing function. Since these partitions are not designed to protect against low temperatures, medium-density thermal insulation can be used. It is desirable that it be presented in the form of plates.

Mineral wool density

The density of mineral wool directly depends on its purpose. This indicator is affected by the thickness and number of fibers in the structure. Mineral wool is produced in the form of soft mats, rolls and rigid slabs, the mass pressure per unit volume of which varies from 11 to 400 kg/m³. Plates are used for thermal insulation of facade walls, soft rolls or mats are used for laying between logs or in a frame.

Styrofoam Density

Polyfoam is divided into the following types:

• PSB-S-15 up to 15 kg/m³;
• PSB-S-25 15-25 kg/m³;
• PSB-S-35 25-35 kg/m³;
• PSB-S-50 35-50 kg/m³.

PSB stands for pressless expanded polystyrene, and the letter "C" means that the heat-insulating material is self-extinguishing. The numbers define the upper limit of the density. The denser the foam, the greater the load it can withstand and the more resistant to mechanical damage.

Output

The choice of thermal insulation is an important stage of construction. To choose the right material, you need to consider the following factors:

• type of work (internal or external);
• insulation installation method (horizontal or vertical);
• the load falling on the heat-insulating material;
• whether it is used for soundproofing;
• average temperature during the cold season, etc.

It is important to take into account not only the pressure of the mass per unit volume, but also the structure of the insulation, the features of its manufacture and application. An important role is played by how the thermal insulation material wears out over time. Mineral wool, for example, tends to absorb moisture, which leads to a gradual increase in thermal conductivity. It also crumbles and crumbles, which makes it thinner at the top.

The room to be insulated also affects the choice of material. So, for outbuildings, it is not enough to choose a heat-insulating material with a high density. It is necessary to install one that will not be destroyed by small rodents and insects.

As you can see, the density indicator is an important criterion when choosing a heater, but not decisive.

Mineral wool is used as a thermal insulation layer by both professional builders and private individuals in the construction of their own houses. It is a material made from fibers of metal slags and molten rocks.

Its distinctive features are good heat saving characteristics, easy and fast installation, versatility of use, fire safety. It is for these qualities that mineral wool is so loved by builders. To choose the type of mineral wool suitable for insulation, its density should be determined.

What is the density of mineral wool

This indicator characterizes the number of fibers per 1 m3 of material. The mineral wool density index varies from 30 to 300 kg / m3, which directly affects its price. The denser the mineral wool, the more expensive it is. There are more fibers per cubic meter of high-density mineral wool, which affects the consumption of raw materials. That is why manufacturers raise prices.

It is wrong to believe that mineral wool of the highest density will be the best option for thermal insulation. For most designs in a private house, it is rational to take cheaper material.

Specifications related to the density of mineral wool:

1. Load resistance. The denser the wool, the more physical stress it can withstand. This rule does not apply to reinforced varieties.
2. Preservation of the original form during operation. The denser the layers of mineral wool, the better they retain their original appearance.
3. Compressive strength. The lower the density of the material, the more it is pressed through. Mechanical impact on the heat-insulating layer involves the use of high-density mineral wool.

Many believe that the denser the mineral wool, the thicker its layer. In fact, all sheets are of the same thickness, only the number of fibers in each of them is different.

Also, the density of the material does not affect such indicators as:

• vapor barrier
• thermal insulation
• Soundproofing

That is, mineral wool with a density of 100 kg/m3 has the same thermal insulation properties as at 200 kg/m3.

Varieties of mineral wool

The name "mineral wool" combines three varieties. They are distinguished by the raw materials from which the material is made.

1. Glass wool. It is based on fibers up to 50 mm long, their thickness is not more than 15 microns. This is the cheapest type of mineral wool. Glass threads give the insulation elasticity and strength. But working with glass wool is inconvenient: it is a fragile material, glass fibers break easily, get on the skin, eyes and respiratory tract. If you install glass wool with your own hands, be sure to use protective equipment, including glasses.
2. Slag. The hygroscopic material, therefore, cannot be used in damp rooms, for finishing water and sewer pipes, for insulating the facade of houses. The production material is blast-furnace production waste, the fibers have a length of about 16 mm, a thickness of not more than 12 microns.
3. Stone wool. This is the safest material, as stone threads are strong and do not break. Fiber sizes - length 16 mm, thickness up to 12 microns.

The difference lies in the density and strength of the material. Also, glass, slag and stone wool have different indicators of hygroscopicity, thermal conductivity, and fire safety.

Application area

Mineral wool is a thermal insulation material widely used in the following fields.

• Construction of houses. Mineral wool is a versatile material, as it is suitable for finishing any surface - pitched and flat roofs, walls, floors, ceilings (See also the article Installing a gable roof truss system with your own hands). The walls are sheathed from the inside for the purpose of insulation, which saves on heating. To insulate the facade, the material is attached from the outside of the house.Mineral wool is suitable for finishing roofs and floors. In addition to thermal insulation, it is additionally a soundproofing material. Mineral wool absorbs moisture, so waterproofing should be taken care of separately.
• For pipe insulation. Water, gas and sewer pipes require thermal insulation. With the help of mineral wool, access structures, as well as street pipelines, are insulated.

It is most convenient to use cotton wool in the form of plates, as they are easy to install and transport, help to hide small irregularities on the surfaces.

How to apply cotton wool with different densities

By density, four main types of mineral wool can be distinguished.

1. Mats. Their density reaches 220 kg / m3, thickness - from 20 to 100 mm. The most durable variety, used for industrial purposes. With their help, they insulate pipes, perform thermal insulation of equipment. For private construction mats are not used.

   The mineral mat is a large slab, its standard dimensions are 500 x 1500 mm.

   Mineral wool is finished on both sides with fiberglass fabric, reinforcing mesh or bituminized paper.

2. Felt. Density - from 75 to 150 kg / m3. A distinctive feature is synthetic impregnation, which improves thermal insulation parameters. Felt can be bought in rolls or sheets. It is most often used for finishing horizontal planes at construction sites, as well as for thermal insulation of engineering communications.
3. Semi-rigid boards. Their production is carried out according to a special technology. Cotton wool is mixed with bitumen or resin based on synthetic components, after which the material undergoes a pressing procedure. Density depends on the pressing force and varies from 75 to 300 kg/m3, sheet thickness - up to 200 mm, standard dimensions - 600 x 1000 mm. Semi-rigid plates are suitable for arranging a heat-insulating layer on a horizontal and inclined surface, there are only temperature limitations. If bitumen is used as a binder, then the mineral plate will withstand temperatures not exceeding 60 degrees. Depending on the type of synthetic filler, mineral wool impregnated with it can withstand temperatures up to 300 degrees.
4. Hard plates. Density reaches 400 kg / m3, thickness - up to 100 mm, overall dimensions 600 x 1000 mm. The composition includes mineral wool and a large proportion of synthetic resin. The material is pressed and polymerized, resulting in a rigid mineral plate. Due to the rigidity, these plates can be safely used for wall insulation. Installation will be quick and easy.

When choosing the right type of mineral wool, be sure to consider the information from the manufacturer on the package. If you approach the choice of density professionally, then careful calculations are needed to identify the appropriate density of insulation. In practice, the owners of houses under construction choose the density at their discretion, based on previous experience, on the advice of consultants.

When installing a heat-insulating layer of mineral wool, it is necessary to remember about hydro-, vapor barrier and wind protection.

Mineral wool for a frame house

Frame structures are erected quickly and easily, and mineral wool can be used as a heat-insulating layer. Mineral wool slabs are laid between wooden beams and sheathed with finishing materials on both sides. The density for the walls of a frame house should be at least 55 kg / m3. During construction, two layers of mineral wool are required. The first is laid directly between the bars of the frame, the second - from the outside.

For thermal insulation of horizontal surfaces that will not be subjected to any load, mineral wool with a density of 35 kg / m3 is sufficient. Buying denser and heavier varieties does not make sense, they will only increase the load on the supporting structures.

Mineral wool remains one of the most common insulation in construction due to its excellent technical characteristics and attractive cost.

In the video you can see how to insulate a frame house with your own hands using mineral wool. The video clearly demonstrates this method of thermal insulation.

The density of the insulation is its mass per 1 m3 of volume, which is also called specific gravity. It is she who determines the methods of installation and the choice of material in general.

Description and influence

Density is a value that is inversely proportional to the porosity of the insulation. Porous materials retain heat and create a kind of buffer. Therefore, a conclusion arises about how density affects: the greater the specific gravity, the lower the thermal insulation properties of the insulator.

illustrative example

For example, birch timber - 500-770 kg / m3, basalt fiber - 50-200 kg / m3. And the coefficient of thermal conductivity of birch is 0.15 W with the same fiber index of 0.03-0.05 W. Thus, porous mineral insulation retains heat almost 5 times more efficiently than denser wooden beams.

It is precisely because of the specific gravity that even thick, reliable walls do not always provide good thermal protection. But a thin layer of insulation can fix this problem. In addition, low specific gravity gives less load on structures: cellular concrete with a low thermal conductivity of 0.1 W is not suitable for insulating thin walls, frame buildings, since its density is almost 400 kg / m3.

Density gives resistance to mechanical stress, so low specific gravity insulators need a protective layer. Such materials include penoizol, polystyrene and penoplex, as well as mineral wool.

Types and selection

In general, all insulators can be divided into the following groups:

• dense - mineral wool under high pressure;
• medium - glass wool and polystyrene foam;
• lungs - mineral wool;
• very light - foam boards.

To determine the type of insulation, you need to consider some factors.

For finishing in a residential building

So, for finishing walls and floors in a residential building, it is better to use basalt materials, which differ not only in optimal density, but also in environmental friendliness. For basalt fiber, it can be different: for walls with siding, it is better to use a material with a unit mass per unit volume of at least 40 and no more than 90 kg / m3. This indicator should grow with the growth of the building: the more floors, the greater the rigidity.

Materials of 140-160 kg/m3 are suitable for plastered facades. Most often, special elements with high peel strength and vapor permeability are used. When insulation outside the house is not possible, then the procedure is carried out from the inside - density also affects here, insulators with its low index are needed. In both cases, mineral or fiberglass is suitable.

For roof and floor finishing

Thus, roofing insulation boards should be of low specific gravity. But it depends on the type of roof:

• a pitched roof requires slabs of 25-45 kg / m3;
• for the attic, materials with a pressure of at least 35 kg / m3 are needed;
• a flat roof needs insulators that can withstand good mechanical loads - snow and wind, so basalt wool with 150 kg / m3, polystyrene foam with an indicator of more than 35 kg / m3 are suitable.

Extruded polystyrene foam is used for thermal insulation of the floor. If the insulation is carried out on logs, then mineral wool slabs can be used - rigidity does not really matter, because the beams will take on the pressure. Plates of 50 kg / m3 are installed in the interior walls.

Penoizol and polyethylene

Penoizol has one significant difference from previous insulators - it is applied in liquid form and has a low density of 10 kg / m3, while its high porosity gives it good insulating properties. Foamed polyethylene can be with different specific gravity - it depends on the presence of reinforcement and thickness:

• rolled material is needed for floor insulation - 24 kg / m3;
• for frame structures and insulation of refrigeration units, engineering structures, it has reinforcement with aluminum sheets -50-60 kg / m3.

So, foam glass has a thermal conductivity of 0.1 W and is much stronger than other heaters. The density index reaches 400 kg/m3 and the material is very stable - suitable for external thermal insulation without requiring a protective layer. Cellular glass has a wide range of materials:

• external insulation - 200-400 kg / m3;
• vertical structures - 200 kg / m3;
• roofs and foundation - 300-400 kg / m3;
• for light and frame structures - 100-200 kg / m3.

Thermal conductivity is 0.04-0.06 W and is almost similar to mineral heaters.

Manufacturers and types

However, modern materials, thanks to the latest technologies, can have different densities, despite the fact that they are made from exactly the same raw materials.

Fiber raw material

Basalt wool has an average of 50-200 kg / m3 - the range is wide. The maximum value belongs to the variants intended for floors and roofs.

Thus, TechnoNicole Galatel basalt slabs have a specific gravity of 195 kg/m3. Basalt wool Dakhrok from "Rockwool" in 190 kg / m3 - its purpose is to insulate under rolled roofing. Knauf Insulation HTB basalt fiber with a low density of 35 kg/m3 is intended for frame structures and prefabricated buildings. Mineral wool TechnoNikol Rocklight in 30-40 kg / m3 is a lightweight insulation option, and the same Knauff company produces Knauff NTV in a density variation of 150 kg / m3.

Foam materials

The density of the foam is about 100-150 kg / m3 - the most dense plates are needed for finishing the roof or floors. Manufacturers clearly divide foam boards by application, when the specific gravity changes accordingly. Extruded polystyrene foam at 28-35 kg/m3 is one of the lightest materials and the most thermally insulating.

For example, TechnoNicol Carbon Sand with an indicator of 28 kg/m3 is used for sandwich panels, and TechnoNicol Carbon Prof with an indicator of 30-35 kg/m3 is applicable for wall insulation and load-bearing structures. Boards from the same manufacturer with a density of 50-60 kg/m3 are used for road construction. Penoplex Wall has a differentiated density: 25 kg / m3 - for the insulation of vertical structures, 47 kg / m3 - for road construction.

In the modern building materials market, one of the most popular types of insulation is Basalt ( stone) cotton wool. This type of thermal insulation is also often called mineral wool. All these variants of names speak of the raw materials from which this material is made.
The raw materials are rocks of the gabbro-basalt group. The stones are melted to a fluid state, then mineral fibers are obtained from the semi-liquid mass, which are the basis for future heat-insulating plates. The fibers are held together with a natural organic binder. The scope of mineral wool materials depends on their strength, and the strength, in this case, depends on the density.

Density of basalt wool

Plates with low density can be used for insulation:

• draft floors;
• interfloor ceilings;
• pitched roofs;
• unloaded structures.

Mineral wool of medium density is used for:

• heat and sound insulation of partitions;
• layered masonry;
• walls and ventilated facades.

High density material is used:

• in systems of plaster facades;
• flat roofs;
• floors.

The cost of various grades of basalt wool also depends on the density. Important characteristics for any insulation are the coefficient of thermal conductivity and vapor permeability. The low thermal conductivity of stone wool makes it one of the most effective types of insulation.
High vapor permeability provides a good indoor climate. All materials of this type are non-combustible materials. In our online store you can buy TechnoNIKOL basalt wool, as well as other materials of the largest Russian manufacturer TechnoNIKOL. Sale of building materials is our specialty, we know a lot about them.

We will help you choose the right brand, calculate the required amount in m² or m³, and offer an individual price. You can use our delivery or pick up the material yourself from one of our warehouses.

One of the parameters that pay attention to when choosing a heater is density. What does one or another of its indicators mean and what characteristics of the heat-insulating material are affected by its density - this and much more will be discussed below.

Peculiarities

The density of a material refers to the weight of a given substance in one cubic meter of material. The unit of measure is kg/m3 (kilogram per cubic meter). Another name for the density parameter is the specific gravity of the material.

Density indicators are determined by the quality of the bond between the molecules of the material. The stronger the insulation elements are connected, the higher its strength.

The easiest way to understand what density is by considering mineral wool insulation. It can be loose and noticeably soft, disassembled into fibers (a material with a low density, the molecules of which have weak bonds). You experience completely different sensations when touching mineral wool mats - their fibers are stiffer, but most importantly, they seem to be pressed together (higher insulation density).

Classification

Depending on what criterion the classification is based on, heaters are divided into different groups. In the framework of this article, we are interested in density differentiation. In this case, the following types of thermal insulation materials are distinguished:

• Lungs. They are lightweight and have low thermal conductivity. This group primarily includes mineral wool materials.
• Medium. Foam glass can be an example of such a heater. Such heat-insulating materials are usually produced in the form of plates and blocks with high heat and sound insulation.
• Rigid. This is a dense insulation, usually obtained by pressing, for example, mineral wool mats. In addition to low thermal conductivity, they are characterized by wet strength and the ability to withstand heavy loads.

Kinds

As already mentioned, all thermal insulation materials are divided into several types depending on the specific gravity. The scope of its application depends on the latter.

The table shows this clearly:

It is important that certain types of insulation have their own classification depending on the specific gravity. For example, according to GOST, polystyrene is divided into grades PSB 15 (density is less than 15 kg / m3), PSB 25 (indicators 15–25 kg / m3), PSB 35 (specific gravity from 25 to 35 kg / m3) and PSB 50 ( 50 kg/m3 or more).

The hardness classification of mineral wool is as follows:

• P-75(material density, respectively, 75 kg/m3) suitable for lightly loaded and horizontal surfaces;
• P-125(the specific gravity of this wool is 125 kg / m3, but insulation with a density of 110, 120 and 130 kg / m3 is also referred to this type) wall insulation;
• PZh-175(density indicators are clear from the name) - high-density material for outer skin;
• PZH-200(specific gravity is 200 kg / m3 and above) - used for outdoor work, has increased fire resistance.

It is worth noting that there are also less dense cotton wool than P-75. Their specific gravity is 60–70 kg/m3.

Parameter comparison

Different types of insulation have different average density indicators.

• Mineral wool insulation have a density of 30 to 200 kg / m3, which ensures their versatility - you can choose the material for any part of the house.
• Maximum polyethylene foam density is 25 kg / m3, while the material is quite thin - 8-10 mm. An increase in density up to 55 kg/m3 is achieved through the use of a foil layer on one side. Interestingly, its appearance only slightly increases the density of the product, significantly increasing the thermal efficiency of the material. This is ensured by the ability of the foil coating to reflect up to 97% of thermal energy.

• popular insulation material Styrofoam has a specific gravity of 80–160 kg/m3, and extruded polystyrene foam - 28 to 35 kg/m3. It is no coincidence that the latter is one of the lightest materials for thermal insulation, which also has low thermal conductivity.
• Due to the peculiarities of the composition and application technology (sprayed with a semi-liquid mass on the surface, after which it hardens), penoizol also has a low density - 10 kg / m3. However, like most similar materials, it requires additional protection at least - a layer of plaster.
• A wide range of specific gravity indicators is characteristic and for foam glass- foamed or cellular glass. Interestingly, the standard figures are 200–400 kg/m3, while the light version has a density of 100–200 kg/m3. In combination with high thermal efficiency, because the coefficient of thermal conductivity is equal to similar values ​​of mineral wool, the material allows the use of a lightweight version for insulation of facade structures, that is, having less weight and cost.

Effect on properties

Most of the characteristics of the insulation are interrelated. So, the density index affects the thermal conductivity.

As you know, air is the best heat insulator. A large number of air bubbles are located between the randomly directed fibers of mineral wool insulation, for example, stone wool. However, if the specific gravity of the material is increased (essentially, compressing the fibers more), then the volume of air bubbles will decrease, which will lead to an increase in thermal conductivity.

However, the relationship between density and thermal conductivity is due to the structure of the material. For example, when the density of polystyrene foam changes, the volume of air contained in its capsules remains unchanged. This means that the thermal conductivity does not change in any way when the density of the insulation changes.

But the change in specific gravity always affects sound insulation. This is due to the fact that with a decrease in the air permeability of the heat insulator, its noise-absorbing performance increases.

In other words, the denser the material, the better sound insulation it is characterized by. However, as the density increases, so does the weight and thickness of the material. It becomes uncomfortable to work with him.

The way out of this situation will be the use of special heat-insulating panels with improved sound-proofing properties. It can be light glass wool or basalt insulation with twisted thin and long fibers. In this case, the density of the material may not exceed 50 kg/m3.

Undoubtedly, there is a connection between the parameter under consideration and the thickness of the insulation. The greater its density, the thinner the layer is required to achieve the desired thermal effect.

Strength indicators are also related to the ability of the material to withstand heavy loads, and the relationship here is directly proportional. In this regard, denser materials should be used in the loaded areas. This is the only way to avoid deformation of the insulation.

Finally, the method of its installation depends on the specific gravity of the insulation. So, between the lags and the elements of the crate, light heat insulators with a low density can be used. If the same option is mounted on the walls, it will simply slide, so the choice is made in favor of more durable mats and sheets.

In addition, dense insulation does not need additional mechanical protection, they are strong enough to withstand mechanical stress. And more loose materials - polystyrene foam, polystyrene foam, mineral wool - always need additional protection.

How to choose and where to apply?

The density of the material should be chosen first of all, taking into account the scope of its application. When it comes to wall cladding, the type of cladding material should also be considered. So, for facades lined with siding, you can use lightweight insulation (40–90 kg / m3). If it is planned to apply plaster, the specific gravity of the insulation should be increased to 140-160 kg / m3.

For pitched roofs, insulation with a density of up to 45 kg / m3 is sufficient, while a flat roof that is subjected to increased loads requires a more “serious” heat insulator. For mineral wool insulation, this figure will be at least 150 kg / m3, for polystyrene foam - at least 40 kg / m3. Under the subfloor, you need the most dense insulation, at least 180 kg / m3, and light, loose insulation can also be laid between the lags, since they take on the entire load.

When choosing a heater depending on its density, criteria such as:

• types of work (external or internal insulation);
• material mounting method;
• the load to which the insulation is subjected;
• average temperature indicators in the winter season;
• the need for soundproofing.

When choosing a heater, it is important to rely not only on its technical indicators, but also on the authority and fame of the manufacturer. Preference should be given to long-lived companies whose products have been on the construction market for a long time and receive positive customer reviews.

The products of some companies have a small selection of materials depending on the density. Yes, in line Ursa there is practically no insulation, the density of which is higher than 35 kg / m3.

Most well-known brands ( Isover, Rockwool) produce both light and rigid insulation - a special type for each type of work, including under a loaded ventilation facade.

Paying attention to specific products, you should carefully study the instructions for the material, paying attention not only to density indicators, but also to the scope. So, in the Isover line there are medium-density slabs (50-80 kg m3), which, however, are suitable for insulating facade systems.

Plates that combine 2 textures are also of interest - their outer side is denser, tougher, the inner one is loose, soft. The use of such materials provides high-quality thermal insulation, reduces the load on the building, and also applies plaster directly on top of the insulation.