Aerated concrete is the stumbling block of a considerable number of construction-related disputes. Despite the battles, many professional builders They believe that it is a good, although not ideal, building material. Just like everyone else. To decide to build a house from aerated concrete blocks, you need to remember that the material has a lot useful qualities, has already become quite widespread.
Selection of wall aerated concrete (gas silicate) blocks Source stroyres.net
For centuries, people have used natural building stone - tuff - to build houses. It was valued for its lightness, ease of processing and ability to retain heat well. Since the 19th century, scientists have tried to reproduce these qualities by experimenting with concrete mixtures. The consistent work of several researchers is considered important milestones on the path to creating modern aerated concrete:
Engineer Hoffman(Czech Republic). In 1889, he conducted a series of experiments with cement mortar, adding acids and salts to it. During the solidification process, the released gases formed a characteristic porous structure.
Americans Oulsworth and Dyer. In 1914, they were the first to use aluminum and zinc salts. The reaction proceeded with the release of hydrogen, which formed a homogeneous porous structure. The method laid the foundation for future technology.
Architect Erickson. In 1922, the Swede patented a method for producing cellular concrete using aluminum powder, becoming the godfather of modern autoclaved aerated concrete. The first aerated concrete for the construction of industrial and residential buildings began to be produced in 1929.
Modern project of a house made of gas silicate blocks Source buildhouse.info
In the USSR, industrial production of cellular concrete was also established in the 30s. The first autoclaved block aerated concrete was produced in Riga in 1937; buildings made from these blocks still stand in the city. In the post-war 50s, aerated concrete helped restore destroyed infrastructure, both in the USSR and in Europe. IN modern Russia The needs for the material are met by more than 80 modern manufacturing plants.
Aerated concrete is a representative of the category of cellular concrete, building materials, different in properties and operating features. The unifying characteristics are the porous structure, low weight and low density. The following components are used in the production of aerated concrete:
Astringent. Portland cement.
Filler. Quartz sand.
Gas generator. Aluminum powder or paste.
Industrial purified water.
Enhancement Additives. Lime, gypsum, industrial waste (slag, ash).
Autoclave curing blocks Source ar.decorexpro.com
The production of aerated concrete begins with mixing the ingredients and pouring the mixture into molds. The chemical reaction produces hydrogen. The gas increases the volume of the mixture (swells it) and forms pores. After the reaction is completed, the mixture sets, it is removed from the molds and cut according to the standard. Further processing occurs in two ways. Depending on which drying method is used, one of two types of aerated concrete is obtained:
Autoclaved(synthetic) hardening. The blocks gain hardness (steamed) in autoclaves (devices that create high pressure in a water vapor saturated environment).
Non-autoclaved(hydration, air) hardening. The blocks harden at atmospheric pressure in drying chambers.
According to the standard, cellular concrete (including aerated concrete) functional purpose are divided into three types:
Structural. Density ranges from 1000–1200 kg/m³.
Structural and thermal insulation. From 500 to 900 kg/m³. The D500 brand means that in 1 m³ part of the volume is filled with 500 kg of solid material, the remaining volume is air filling the voids (cells).
Thermal insulation. From 200 to 500 kg/m³.
Using blocks increases construction speed Source geo-comfort.ru
Aerated concrete serves as an example optimal ratio between the main performance characteristics:
Durability. Despite the low density ( specific gravity), the strength is sufficient for the use of aerated concrete in the construction of load-bearing walls.
Lightness. The lightness of aerated concrete is due to porosity, which can reach 85-90% of the volume of the material.
Low thermal conductivity. Good thermal efficiency is also a result of the porosity of the material. Aerated concrete boasts the lowest thermal conductivity coefficient, 0.12 W/m°C (dry).
Having discovered on the Internet many tips for producing aerated concrete with your own hands, and making sure that they are quite feasible, many decide to start their own production. At the same time, home craftsmen do not consider it necessary to strictly comply with technological standards, but they always find people willing to purchase the product at dumping prices.
Small production - no guarantee Source beton-house.com
On our website you can get acquainted with the most popular projects of houses made of aerated concrete blocks from construction companies presented at the exhibition of houses “Low-Rise Country”.
The use of high-quality raw materials and technological equipment in factory production allows us to obtain aerated concrete products with stable physical and chemical characteristics:
Exact dimensions and correct, with minimal defects, shape.
Given physical and mechanical parameters.
Uniform material density, which is confirmed visually (uniform distribution of air cavities).
Chemical inertness of the material, which is confirmed by laboratory control throughout the production cycle.
The conditions of handicraft production cannot provide manufacturability and control at the level of a modern workshop. Hand-made aerated concrete blocks are distinguishable to the naked eye: the cells (cavities) are distributed unevenly, and the geometry leaves much to be desired. Sometimes such products smell noticeably of chemicals (often lime). Using home-made blocks will most likely reduce the cost of construction, but is guaranteed to become a source of serious problems:
Blocks with arbitrary density and composition have increased fragility and with a large share chances are they will begin to crack in the first year of operation of the house.
Rough seams will cause heat loss Source bg.decorexpro.com
Blocks with non-ideal geometry it will not be possible to place it on special glue; You will have to use mortar. Seams with a thickness of 1 to 2 cm will become cold bridges, reducing the thermal efficiency of housing and promoting freezing of the walls.
Blocks with residual undecomposed lime will have a persistent chemical odor (and affect the health of people living in the house). Excess lime can start the process of corrosion of the metal in the wall.
Country gas silicate house has the same strengths and weaknesses, as raw material. Based on the structure of aerated concrete, many advantages can be identified:
Cheapness. Due to the low consumption of cement in the production of products.
Construction speed. The blocks are significant in size and weigh 3-5 times less than a brick of the same volume. This allows you to build 1 m² of wall in 20-25 minutes, which is unattainable in the case of brickwork.
Construction costs. Savings come from rational use labor time and construction materials.
Aerated concrete lends itself manual processing Source kamtehnopark.ru
construction service of houses from aerated concrete blocks
Low thermal conductivity. According to this indicator, aerated concrete better than brick 2-3 times. A wall made of 37.5 cm thick blocks retains heat as well as 60 cm thick brickwork.
Ease of processing. Blocks can be cut by anyone without any problems hand tools, sawed, milled and fined. This flexibility allows you to create complex architectural projects.
Fire resistance. Aerated concrete is characterized by a high degree of fire resistance and belongs to the flammability group NG (non-combustible). When exposed to a flame with a temperature above 100°C for two hours, an aerated concrete wall begins to lose strength and crack to a depth of 3-4 cm (this is enough time to leave the house and call the fire brigade). Wooden house During this time it will burn to the ground.
Vapor permeability. High. Due to the presence of interconnected voids, the material successfully regulates the humidity in the room (breathes).
Environmental friendliness. The lime and aluminum powder used in production are converted into inert solids after a gas formation reaction. Therefore, the material, made according to all the technology requirements, does not emit any volatile substances into the air.
This is interesting! On various construction forums you can often find references to a certain table of coefficients of environmental friendliness of materials. There are even some numbers given - for example, for expanded clay this coefficient is 20, for brick - 10, aerated concrete - 2, and the leader and standard is wood - its value is 1. In practice, the existence of such a table is not confirmed in any official document , although if we consider materials specifically in terms of the release of any substances into the air, then there is some truth in such a division.
Durability. In the Scandinavian countries, Germany and France, there are many houses made of aerated concrete, built 40-50 years ago and still showing no signs of destruction. This durability is due to the quality of the factory-made material and installation carried out in compliance with the technology.
Post-war aerated concrete house Source bwncy.com
Frost resistance. Aerated concrete resists cyclic freezing well.
Features of aerated concrete blocks determine the weak points of the structure:
Flexural strength. Aerated concrete is characterized by a relatively low coefficient of ultimate deformation (0.5–2 mm/m). Foundation deformation beyond these limits leads to the appearance of cracks in the wall of the house. The means of combating will be the construction of a solid foundation with monolithic lining or mesh reinforcement, tying the floors and reinforcing the masonry. It is also not recommended to build private houses higher than 3 floors.
Fasteners. Nails, anchors and screws fit perfectly into an aerated concrete wall, but they stay there disgustingly. A characteristic disadvantage of all cellular concrete is corrected by the use of special fasteners for porous surfaces (steel, nylon, frame). You should also pay attention to the installation of windows and doors (if installed incorrectly, they may become loose over time).
Adhesion(clutch with finishing materials). It is not high, so before plastering the wall must be prepared (reinforcement or a layer of primer).
External finishing of the facade with plaster Source hug-fu.com
On our website you can find contacts of construction companies that offer house design services. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.
Shrinkage. The shrinkage of non-autoclaved aerated concrete reaches 2 mm/m, autoclaved - up to 1 mm/m.
In order for the constructed house to serve for a long time and without problems, it is necessary to take into account the characteristics of the material:
Hygroscopicity. A porous wall is capable of absorbing and releasing moisture (like, for example, a wooden wall). To protect the facade from excess moisture, the walls are lined, preferably with ventilation.
Heating. A house made of aerated concrete can significantly reduce heating costs, but it must be taken into account that the higher the grade of aerated concrete, the worse its thermal insulation properties. Energy efficiency can be improved by simple plastering.
Ventilation. Since aerated concrete is quite large in size building blocks, then the likelihood of poor-quality installation increases, even taking into account the excellent geometry of the products. For example, if the glue is too thick, it does not completely fill the space between the blocks and through gaps form. If there is such a possibility, then after construction it is recommended to conduct a thermal imaging inspection of the house to know whether there are joints and seams that need to be sealed.
Aerated concrete cottage with cladding underneath a natural stone Source pinterest.ch
Many have encountered not the most flattering reviews about aerated concrete and operational characteristics houses that had the misfortune of being built from it. Such judgments and conclusions often have little to do with reality and are caused by a misunderstanding of the characteristics of the material and technology. Most often you can hear such “expert” opinions:
Aerated concrete walls are prone to cracking. Cracks can appear not only in an aerated concrete wall, but also, for example, in brickwork. After the examination, we have to admit that in most cases the cause of the defect is not the quality of aerated concrete. Most often, the culprit is a poor-quality foundation, the design of which did not take into account the soil characteristics and location groundwater. Another reason may be reinforcement errors (both walls and foundation). The quality of aerated concrete will play an unfortunate role only if garage-made material was used.
Aerated concrete buildings require insulation. If, when developing a house project, the thickness of wall structures was laid taking into account the standards of SNiP 23-02-2003 (on thermal protection of buildings), additional insulation will not be required. But since aerated concrete houses definitely need façade finishing, insulation is often installed “at the same time.”
Finishing requires the installation of a ventilated facade Source bankfs.ru
Aerated blocks for the home are a very fragile material, which splits when hit by a hammer. The same brick can also be split by applying a certain force. According to SNiP, for low-rise construction (up to three floors), aerated concrete blocks of the D500 brand are recommended, which are quite durable and at the same time light and warm. The D400 brand material is more fragile and warm, the D600 brand material is, on the contrary, stronger and colder. Houses built taking into account technological features, cope well with emerging loads, even in seismically active areas.
Aerated concrete absorbs moisture like a sponge, therefore, a newly built facade requires prompt waterproofing. One of the main features of the material is its gas and vapor permeability, which, however, is not very different from the characteristics of wood. Like wood, aerated concrete is able to absorb moisture and then return it, regulating the microclimate in the rooms. Both materials have a humidity corresponding to the humidity of the surrounding air, and since concrete does not dissolve in water, aerated blocks are not in danger. External walls will not be overly humidified in cottages with year-round accommodation and properly equipped cladding (which does not impede the circulation of moisture).
About construction from gas silicate blocks in the following video:
The aerated concrete block gets wet and submerged in water, therefore not suitable for the construction of suburban housing. Strange logic, if you remember that the foam remains on the surface of the water, and the brick instantly sinks to the bottom. The degree of water absorption of an aerated concrete wall during operation is in no way related to buoyancy; these are two different characteristics.
Living in a house with aerated concrete walls is dangerous, since the material contains lime and aluminum, and the rooms sometimes smell of lime. These elements are part of the original mixture; then they enter into chemical reaction(reaction of transformation, transformation) with other components. The output is artificial stone, aerated concrete, which lacks the original elements. For industrial production Characterized by precise dosage of starting substances and high-quality drying, as a result of which only safe silicates remain in the material. The smell of lime appears in garage aerated concrete when the components are measured “by eye” and more lime is added than necessary.
Design features of a typical aerated concrete project Source stroyres.net
When developing a project country house made of aerated concrete parts are based on the characteristics of the material. To make housing comfortable and durable, the following points are taken into account:
Wall thickness. Determined by constructive necessity. Optimal thickness load-bearing walls in climatic conditions middle zone Russia fluctuates between 300-400 mm, interior partitions - 100-150 mm.
Suitable foundation. For aerated concrete walls, a reliable and stable foundation is important. A monolithic slab base is usually recommended; It is advantageous to use it on various soils.
ABOUT typical house from gas blocks in the following video:
Roof. Pitched or flat, the roof needs proper installation on aerated concrete walls. Preferred lightweight design with metal tiles, corrugated sheets or bitumen shingles as a roof.
The need for conservation. Laying of autoclaved aerated concrete is not carried out at temperatures below -5°C. If cold weather sets in, the house is preserved; It is desirable that by this time it already has ceilings above the first floor. The walls are covered with a waterproofing film, just like pallets with blocks (it is better if they are packed in factory-made shrink tape).
Roof arrangement aerated concrete house Source bankfs.ru
Aerated concrete is a material that offers the widest possibilities for architectural solutions; one only has to remember the famous Dancing House in Prague. To design country cottage made of aerated concrete, the following requirements apply:
Originality. Details of the architectural style can convey the taste of the owners and emphasize their individuality. Exclusive appearance often achieved by combining modern and traditional styles.
Practicality(functionality). Currently, houses are being designed from aerated concrete with a thoughtful layout and with any additions - a garage, a terrace (including on the top floor), an attic, a glazed bay window or a balcony.
Comfort. The concept of comfort can be different, and the interior of a house made of aerated concrete blocks can be decorated in any style, from traditional classic to ascetic minimalist. Often the customer's choice is cozy style country, picturesque Provence or energetic loft.
A modern project with oriental notes Source pinterest.com
If you decide to build a house from aerated concrete, its price will in any case be more affordable than a similar brick cottage. Many variables will affect the cost:
Project type. You can buy popular standard project(with ready-made documentation) or order custom development, taking into account personal preferences.
Brands of building materials. The price depends on the manufacturer (domestic or foreign) and the volume of purchase.
Complexity architectural solution . Determined by the area and number of floors of the project, as well as the type of foundation and roof.
Relief of the site. If there is a slope on the site, the project will have to be modified.
About thermal imaging inspection of a house made of aerated blocks in the following video:
By choosing to build a house from aerated concrete blocks on a turnkey basis, you will be able to appreciate all the advantages of this service, because from the moment the contract is signed, all current issues related to the construction of the house become the concern of the contractor:
Inevitable improvements and changes to the project.
Geological and geodetic studies of the site.
Selection of workers and quality control of construction.
Construction works stipulated in the contract (from the zero cycle with laying the foundation to laying engineering communications and finishing).
Today we will discuss how to build an inexpensive house from aerated concrete. How much does a turnkey aerated concrete house cost in the following video:
Of course, you will be able to receive a report at any time or personally monitor how construction is progressing and how the agreed budget is spent.
Country house made of aerated concrete blocks, individual project Source bankfs.ru
When choosing a construction company, you should focus on the time of its existence, the number and quality of completed projects, and reviews from real clients. Companies with extensive experience have their own design bureau, permanent suppliers and professional work teams of various profiles. Construction companies that care about their reputation act according to a well-established scheme, prefer to maintain optimal prices and often have a system of discounts on materials.
Prices for the construction of country houses from aerated blocks in the Moscow region are as follows:
Area up to 100 m²: on average 2.25 - 3.700 million rubles.
From 100 to 200 m²: 4,150 - 5,200 million rubles.
From 200 to 300 m²: 5,560 - 8,670 million rubles.
Aerated concrete is artificial stone, which has recently been used in the construction world. It has great thermal conductivity and strength, is lightweight and easy to install, and has found its application in the construction of partition and wall blocks. Due to the precise parameters of aerated concrete floors, an even and smooth coating is ensured, which does not require subsequent finishing. Aerated concrete walls are prefabricated prefabricated slabs. Great demand for such products has arisen due to their environmentally friendly components that do not affect human health.
Aerated concrete slabs are used in the installation of floors between floors of buildings, and are also used to construct walls. Aerated concrete structures are used in the construction of houses whose height does not exceed three floors. For floors, aerated concrete blocks with technical characteristics, suitable for the weight of the vaults.
Building blocks made of foam concrete are autoclaved and non-autoclaved. The second type is the best in price and quality characteristics. When using autoclave plates, you need to be prepared that after installation, during operation, they “grow old.”
In the production of autoclaved cellular aerated concrete slabs, lime is used, which causes the materials to harden as a result of pressure and temperature. In the preparation, cement is used as a binding element, as a result of which the particles harden naturally.
metal beams. When using aerated concrete slabs, it is necessary to install a reinforced ring belt. A reinforced or aerated concrete floor is monolithic structure , consisting of grooves into which the plates are inserted. When working with aerated concrete slabs, they are laid on a reinforcing layer..
In this case, the reinforcing structure is treated with anti-corrosion coatings The sizes of the slabs are different, but the main condition is that they must protrude 20 cm beyond the span. Prefabricated ones are also used, the production of which takes place in factories; They are more economical than monolithic ones. Are different aerated concrete structures
light weight, which cannot be said about reinforced concrete ones.
Monolithic floors about 3 centimeters thick include a reinforcing mesh filled with concrete. Such aerated concrete house structures have different shapes, which makes them different from slab ones. Single floors can withstand a large load, which is a plus; the disadvantages include their high cost and labor intensity.
Install a couple of centimeters below the ceilings to avoid pressure and cracks. Aerated concrete floor slabs can act as door and window lintels. When the wall thickness is more than 5 cm, prefabricated lintels are used, the length of which should be 1 centimeter greater than the opening.
Aerated concrete, used in the production of blocks for building houses, has high thermal insulation properties. However, in difficult weather conditions, additional insulation will not be superfluous.
The manipulations are first carried out in the interior of the house, only then the insulation of the house from aerated concrete is carried out on the outside. The comfortable temperature in the room depends on the thickness of the insulation layer. The optimal insulating layer is 10 cm.
The most popular insulation options are:
The material is durable and has high vapor permeability. The use of mineral wool as insulation will provide comfortable temperature and indoor humidity balance.
The service life of the material is 70 years. Mineral wool is more practical compared to expanded polystyrene. Available in the form of slabs and rolls. Plates measuring 50x100 cm are considered the most convenient to install.
Work order:
Pros:
Minuses:
Economical insulating material. Can only be used outside buildings. There are two types of polystyrene foam - penoplex and polystyrene foam.
The cost of expanded polystyrene is much lower than the price of mineral wool. This material does not allow steam and moisture to pass through. Aerated concrete houses with foam insulation be sure to add additional ventilation holes.
Expanded polystyrene is attached to the wall using glue, after which it is additionally secured with plastic dowels. Plastering and painting the walls is carried out after the adhesive layer has completely dried.
Work order:
This type of finishing can be done with either mineral wool or polystyrene foam boards. Siding is an additional insulating layer. The advantages of this type of finishing:
Great option for wall insulation - the use of facade thermal panels made of rigid polyurethane, decorated with clinker tiles.
They are used in the construction of ventilated facades - thus, the walls of the house are protected from external influences and from winds, but do not form an unnecessary barrier and maintain the necessary vapor permeability of the entire wall. The “inside-out” principle when applying these facade panels is fully complied with.
With virtually no visible disadvantages, they have a number of positive qualities:
Aerated concrete – excellent material for the construction of buildings and structures. The houses it makes are warm and reliable. However, to improve energy-saving qualities, any building must be insulated.
Optimal insulating material recognized mineral wool. Good properties expanded polystyrene also has. Compliance with insulation technology will ensure a comfortable temperature in the house and increase the service life of the structure for many years.
You can vary its size, shape, bearing capacity– produce blocks, beams, floor slabs.
Blocks
Today, there are two types of blocks available on the global market for aerated concrete building materials:
– small-piece, up to 625 mm in length and 250 mm in height
– large-format, up to 1200 mm in length and 600 mm in height.
At the same time, the bearing capacity of the blocks is from B 2.5 to B 3.5, density is from 300 to 700 kg/m 3.
With the help of large-format blocks, it is faster to build walls, and the amount of glue is also reduced, since fewer seams are required. Large-format blocks have one “minus” - their laying is carried out only with the help of a crane.
Due to the fact that aerated concrete is classified as autoclaved cellular concrete, sawing required size block is not difficult for the manufacturer. The lack of prevalence of large-format blocks in domestic construction practice is due only to the fact that few customers can afford to pay for the work of a crane during the entire period of wall construction.
When constructing walls, building blocks are placed in one row (one after another). Therefore, masonry reinforcement is carried out only along the wall. There is no need for transverse-longitudinal reinforcement, that is, a masonry mesh. Due to the cellular structure of the material and long length blocks (625–1200 mm), reinforcement with a diameter of 8–10 mm is used (for comparison, a brick 120–250 mm is reinforced with a mesh with a diameter of 4–5 mm).
The use of aerated concrete wall panels is another attempt to build walls as quickly as possible. Aerated concrete, like all concretes, has good compression resistance and poor tensile strength. Therefore, the wall panels are narrow, no more than 600 mm in length, but their height corresponds to the height of the floor - 2700–3000 mm.
But construction cannot do without ordinary blocks, even when constructing walls from panels. Where complex shapes are needed (bay windows, pediments), it is more convenient to use small-format blocks because they are easier to saw and lay.
Beams
The homogeneous structure of aerated concrete (cellular) makes it possible to strengthen its “weak” places. As you know, the weak point of any concrete when working as a beam is the so-called tensile (lower) zone. Therefore, to pass through openings, aerated concrete beams are reinforced with welded mesh reinforcement during the manufacturing process.
The possibility of reinforcing aerated concrete allows its use in beam structures (above-frame, interfloor and attic floors), thereby bringing the entire building structure as close as possible to homogeneity.
The homogeneity of materials (when all elements have the same physical, mechanical and thermal characteristics) during the construction of enclosing structures is one of the components of their reliability.
Three types of materials are used as interfloor and attic floors: heavy concrete, solid wood and aerated concrete.
In earthquake-prone areas, floors made of heavy concrete rest only on the structures of columns and crossbars made of monolithic reinforced concrete. The use of such heavy floors in combination with aerated concrete walls can lead to “crushing” of the latter. The organization of solid wood floors has limitations: maximum length the span should not exceed 4 meters.
It is very constructive to use aerated concrete as interfloor and attic floors, since it can easily be reinforced. One slab of reinforced aerated concrete can cover up to 6 meters. You just need to keep in mind that to achieve the required bending performance ( interfloor ceilings have a higher rate, attic floors have a smaller value) the slabs are made quite narrow and thicker compared to reinforced concrete hollow-core floor slabs. In addition, aerated concrete slabs cannot be used to cover ventilated underground floors due to the material’s high hygroscopicity (ability to absorb water). In these cases, reinforced concrete floors are made.
Aerated concrete has several undeniable advantages: It is faster and easier to lay than ordinary efficient brick, and it is warmer. But currently onlyrow blocks length625 mm, others construction materials from aerated concrete have not yet been presented. This is largely due to the fact that the diversity described in the article structural elements made of aerated concrete requires mechanized installation, which increases construction costs.
Aerated concrete seems to be a fragile material only at first glance. In fact, its work in house structures is not much different from ordinary concrete– any type of concrete without reinforcement is fragile. The only point that needs to be taken into account is that cellular concrete, which includes aerated concrete, is reinforced to a lesser extent; therefore, reinforced concrete is still stronger. On the other hand, in each specific case you need to look at whether it is necessary to use “labor-intensive” reinforced concrete or whether the safety margin of aerated concrete is sufficient.
Houses made of aerated concrete
"Construction Rules", No. 37/ 1 , January 2014
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Homes have been known on the market for quite some time now from lightweight concrete: aerated concrete and foam concrete.
If you have firmly decided to build from aerated blocks, just build, have a good construction. But if you are in doubt, evaluate our offer..
Reasons for the objectivity of doubts about a house made of aerated concrete:
The importance of choosing the right aerated concrete in a short video from the German Yutong plant:
What to do if:
In addition to the price, a significant advantage of houses made of stone panels is their complete Aadaptation to cold climate conditions and lack of main gas for heating .
It will be much easier to warm up a house made of Neo stone SML panels with electricity than a house made of aerated concrete due to the high thermal inertia of the aerated concrete box. Tested by experience.
The photo shows our houses made of Neo stone SML panels.
Let's return to aerated concrete. Why is technical supervision needed when building a house made of aerated concrete? The reason is strict implementation mandatory requirements to the construction of houses from aerated concrete (using the example of the company Ytong).
MANDATORY requirements for transportation, unloading and storage of aerated concrete:
Compliance with the requirements for transportation, unloading and storage allows you to demand compensation for excess production and transport waste in pallets from the manufacturer (if the breakdown of aerated concrete blocks based on delivery results was more than 5%).
MANDATORY requirements for construction and installation work:
Fulfilling all these requirements for construction and installation work allows you to build a gas-block house that will not be susceptible to cracking.
Mandatory requirements lead to an objective situation:
Video about houses in Finland. Pay attention to the words at the end that in Finland, in recent years, heavy houses have not been built.
Worthy and profitable.
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