Ceiling logs in a block house. The device of the floor in the house of aerated concrete

Wooden floors in a house made of aerated concrete are interfloor, basement, attic. This is the most economical option that you can make yourself.

Advantages of wooden floors

Bearing structures made of wood have a number of positive characteristics:

• light weight;
• environmental friendliness;
• low cost;
• ease of installation;
• rich choice of wood;
• flexibility in configuration.

Wood improves the indoor climate of aerated concrete blocks, promotes air circulation, and maintains normal humidity.

Preparation before carrying out work on the manufacture of the floor frame

Before starting work, it is necessary to prepare building materials for mounting the frame and walls. Aerated concrete needs to be reinforced, it does not tolerate compressive loads well. This is especially true for frames between floors, including wooden floors in an aerated concrete building with a basement.

The base is under load from the weight of the building material, the installed furniture, the people living in the room. Structural elements are also subject to vertical pressure, which also affects aerated concrete walls.

Reinforcement is carried out when laying walls every 4 rows. This procedure prevents the interaction of wall concrete with wooden beams, which are attached to the chord with reinforced plates. The fittings are laid in strobes cut in blocks with a size of 1.2 * 1.2 cm.

For the arrangement of beam ceilings, the following materials will be required:

• Beams made of wood without weak zones, large knots, or glued laminated timber with a size of 50 * 150 mm.
• Wooden blocks 5*5 cm.
• Waterproofing in rolls and coating.
• Plywood, lining or other material for filing beam ceilings from the inside.
• Antiseptic, fire retardant impregnation.
• Sand, cement, gravel.

Wood processing methods and installation of load-bearing beams

Wood raw materials have some disadvantages; to eliminate them, the material is processed:

• special impregnations from rotting, fungus, mold;
• solutions, preventing the penetration of moisture;
• heat-resistant means that reduce the flammability of wood.

Steel structural elements must be treated with anti-corrosion mixtures.

The installation of the supporting structure begins with the laying of load-bearing beams in increments of no more than 1 meter on the walls with an approach of more than 15 cm.

Extreme wooden beams are installed first. With the help of a long board, set at the end, they are brought out by level. They should not be in close contact with the walls, but have a gap of 3–4 cm, which is later filled with insulation.

The remaining beams are mounted horizontally at the level of the extreme ones. If the supports are not long enough, they can be built up with the same material. The bars are bolted together with an overlap of 0.5–1 meter. Such a fastening is considered reliable.

The beam is attached to the armored belt with anchor plates. The ends of the bars are cut at an angle of approximately 70 ° for a better exit of moisture. The tree is coated with an antiseptic and heat-resistant impregnation. Oil-based substances and paint are not recommended for these purposes. They disrupt the process of natural evaporation of moisture.

The parts of the beams that go beyond the wall are coated with bituminous mastic and wrapped with rolled roofing material in several layers. The outer ends are insulated with polystyrene foam.

For insulation, the voids between the beams are filled with aerated concrete blocks or bricks with gaps between different materials of 2–3 cm. Mineral wool is hammered into the voids. It does not allow the tree to become damp, prevents condensation.

Calculation of the size of the wooden floor

It is important to correctly calculate the interfloor elements, the durability of the house made of aerated concrete directly depends on this. Before starting construction, it is necessary to determine the length and cross section of the beams.

It is difficult to calculate the total load on the aerated concrete block and timber. Its total value is assumed to be 400 kg / m², this includes the mass of the structure, furniture, residents.

In the table below, to determine the section, the span length and log spacing are indicated.

Span, m	Laying step, m
	0,6	1
	Bar section, cm
7	15*30	20*27,5
6	15*22,5	17,5*25
5	12,5*20	15*22,5
4	10*20	12,5*20
3	7,5*20	12,5*20

Let the span length in the aerated concrete house be 4 m, and the beams are installed every 60 cm. From the data in the table it can be seen that a bar with a section of 100 * 200 mm is suitable for construction.

It is important to consider that the boards go into the wall at least 15 cm, so the length of the supporting structure is 4.3 m (4 \u003d 0.15 \u003d 0.15).

The thickness of the beams is determined depending on the expected load, plus a margin of 15–20%. When calculating the step between them, take into account:

• span width;
• type of wood;
• load on the structure.

The larger the span, the more often the ribs need to be laid. This will eliminate their deflection under their own and additional weight.

The cross section of the lumber should provide a deflection of no more than 1/300 of the size of the floor span. For good resistance to loads, building materials up to 6 m long are used.

After calculating the dimensions of the structural elements, they begin to acquire the necessary materials.

Technology of installation of wooden floors

Due to the specific properties of wood, the installation of floors in the house has some design features. All load-bearing elements are reinforced with metal: the joints are fixed with stainless plates. With a large area of ​​\u200b\u200bthe room, additional elements are added: columns or crossbars.

The construction of a wooden supporting structure in an aerated concrete house is carried out in a certain sequence.

Step #1

Calculation of structural elements:

• Installation begins on the short side of the room.
• The step of the flooring directly depends on the cross section of the timber. It is better to lay material with a large cross section less often than more often with a small one.
• The first timber is mounted perfectly evenly, according to the level.
• Wooden beams must withstand pressure up to 400 kg per 1 m².
• The optimal size of the bearing element is the ratio of height and width of 1.5 to 1.

Step #2

Preparation for installation. When erecting walls, it is necessary to outline the places for attaching bars with the following characteristics:

• crossbar step- 1m;
• beam depth- 0.3 m;
• building material width- 0.3 m.

The ends of the installed boards are treated with waterproofing and insulated. The remaining air space does not need to be filled with anything.

Step #3

The layout of the pie of the supporting structure. The process includes the following operations:

Scheme of the "pie" of a wooden floor

• All elements of a wooden floor, with the exception of the ends, are treated with moisture and fire retardant impregnations.
• The beams are measured, laid along the perimeter of the room, on each side of the fastening, 0.4-0.5 m of the size of the room is left. To give strength at an angle of 70 °, “corners” are sawn off from them, that is, they give the elements the shape of a trapezoid.
• The extreme ribs are mounted according to the level, they are centered. The gap for ventilation should be 2-4 cm.
• All laid main boards are fixed with dry crushed stone, landing recesses are concreted with a mixture of cement and crushed stone.
• Thermal insulation with a layer of at least 100 mm is done after the screed has completely hardened. Expanded polystyrene, ecowool or expanded clay are suitable for filler.
• A hydrobarrier made of liquid rubber, injection resin, bituminous agents or seamless polyurea is laid on top.
• They lay lags. The base material is beams 5 cm thick. A draft floor is attached to them across the self-tapping screws, the material of which is pre-impregnated with an antiseptic.
• Ceiling flooring is made in the same sequence as the floor device.
• The final stage is the final cladding of structures.

In a house of aerated concrete, you can make a monolithic belt of aerated concrete for the installation of wooden floors. It is created from special gas blocks that evenly distribute pressure on the walls. This will prevent cracking of the wall tiles.

The construction of houses from gas blocks is very popular lately. This is due to the fact that aerated concrete blocks allow you to build a house quickly. The walls are warm, breathable, it is easy to get a smooth surface of the walls.

When determining the design of the house, the question arises of what kind of overlap is best done in houses made of aerated concrete blocks. First, we will briefly review the options, and then we will focus on the wooden floors in the house of aerated concrete.

Which cover is better

In a house made of aerated concrete, you can arrange various types of interfloor floors. The most common are floors made of prefabricated reinforced concrete panels, monolithic reinforced concrete and wooden beams.

Brief description of reinforced concrete floors

Reinforced concrete floors have all the characteristics necessary for floors:

• strength;
• durability;
• high bearing capacity;
• good sound insulation;
• high fire resistance and incombustibility.

But, at the same time, there are a number of disadvantages that must be considered when choosing a reinforced concrete floor.

Ceiling from precast concrete panels. In the case of precast concrete panels, it must be taken into account that the plan and configuration of the building do not always allow optimal selection of the panel of the desired size. Since the panels are produced only in a rectangular shape, it is impossible to cover rounded areas and rooms with irregular geometric shapes with them. Then there are areas that have to be additionally sealed with monolithic reinforced concrete. Despite the fact that the installation of the reinforced concrete panels themselves is a fairly fast process, it is the installation that can become a factor due to which it will be necessary to abandon the prefabricated panels, since not all areas have the ability to drive a crane to install them.

Advantages:

• quick installation.

disadvantages:

• restrictions on size and shape;
• the need for a crane access during installation.

Monolithic concrete floor. A monolithic ceiling is convenient because it does not require large equipment and can be made in any size and shape. But the construction of a monolith is a very laborious process. This is the manufacture and installation of formwork, the installation of a metal frame, the preparation of concrete and its pouring, the care of concrete during the hardening process. Moreover, when pouring concrete, it is necessary to follow certain technological rules to ensure its uniform distribution in the mass of the slab, which significantly affects the quality of the product. Laboriousness, duration and a large number of so-called "wet processes" may make you think about finding another option for the design of the ceiling.

Advantages:

• the ability to perform overlappings of any shape;
• no big equipment needed.

disadvantages:

• high labor intensity and duration of the process;
• wet process;
• you need a large amount of water, and it may not yet be in such volumes on the site;
• the need to comply with the technological regimes for the preparation and placement of concrete.

A significant disadvantage for concrete floors when choosing a floor material for a house made of aerated concrete blocks is its weight. Given that aerated concrete is a porous material, it is more brittle than just concrete and brick. And, therefore, in houses made of aerated concrete, it is preferable to use a lighter floor structure.

Brief description of wooden floors

Therefore, very often the choice stops on wooden floors. Wooden floors are lighter than concrete, cheaper, can cover rooms of various configurations.

The manufacture and installation of wooden floors is not difficult. For the installation of such an overlap, large equipment is not needed, you can use home-made winches and hand tools.

Advantages:

• a light weight;
• flexibility in configuration;
• the presence of an assortment of wood;
• not complicated installation.

Disadvantages:

• combustibility;
• the need for antiseptic protection.

Wooden floor: construction and installation

The load-bearing element of a wooden floor is a beam. Basically, beams are made of solid wood or glued beams. But it can be used for beams and logs of the appropriate diameter. The approximate dimensions of the beam sections, depending on the step of the beams and the overlapped span, can be found in the table.

Table of sections of wooden beams of the floor, depending on the span and step of the beams, the estimated load on the floor is 400kg / m2.

	Span, m
Beam spacing, m	2,0	2,5	3,0	4,0	4,5	5,0	6,0
	Bar section, mm
0,6	75x100	75x150	75x200	100x200	100x200	125x200	150x225
1,0	75x150	100x150	100x175	125x200	150x200	150x225	175x250
	Log diameter, mm
1,0	110	130	140	170	190	200	230
0,6	130	150	170	210	230	240	270

Fixing the beam in the wall. During the construction of the wall at the design height, floor beams begin to be laid out. The beams are inserted into the wall at a distance of at least 12 centimeters. The end of the beam, which is inserted into the wall, must be covered with a waterproofing material: wrapped with roofing paper, covered with bituminous mastic or other sealant with antiseptic additives.

There should be a small air gap around the beam, the beam should not sit rigidly. To do this, they also make a bevel at the end of the beam at an angle of 60-80 degrees. Between the end of the beam and the outer part of the wall, polystyrene insulation is arranged.

If it is necessary to lengthen the beams, this is done in the form of a lock: the beams are interconnected with an overlap from 0.5 to 1.0 m and fastened with bolts. It is desirable to make the joints of the beams above the inner wall or other support.

Floor structure device. For the device of heat and sound insulation of the ceiling between the beams, sound and heat insulation is laid. For this purpose, a roll is made in the lower part of the beams, for fastening of which cranial bars with a section size of 50x50 mm are nailed along the bottom of the beams. Insulating materials must fit snugly against the bars. The bottom of the beams is hemmed with plywood, OSB-board, or plasterboard.

Logs are laid on top of the beams, and a draft floor is laid along them. To improve sound insulation under the subfloor and under the logs, you can lay special noise and vibration-absorbing pads.

To improve sound insulation and in order to reduce the possibility of ceiling deflection from the effect of gravity on the floor of the upper floor, there is an option for installing the floor and ceiling on divided beams. The main idea of ​​this method is to separate the floor structure and make different load-bearing beams for the floor of the upper floor and for the ceiling of the lower floor. To do this, the floor is laid on the main load-bearing beams.

Floor beams are laid directly on the wall with armored belt. Between them, ceiling beams are mounted in the middle, which are attached to the wall with brackets.

Ceiling beams are installed with the same pitch as the carriers, so the distance between adjacent beams will be 0.3 or 0.5 meters, respectively. Ceiling beams will not carry heavy loads, their main task is to keep the false ceiling and the cake made of soundproof materials. Therefore, ceiling beams, according to the calculation, can be installed with a smaller section. To place sound insulation, ceiling beams are placed 10-12 cm below the bearing ones. Thus, the floor and ceiling are not connected to each other and possible deflections and sounds from the floor structure are not transmitted to the ceiling structures.

The device of a monolithic belt of an aerated concrete house: why is it important

In houses made of aerated concrete blocks, floor beams are laid along a monolithic belt. A monolithic belt in houses made of aerated concrete blocks is an indispensable structural element. It helps to evenly distribute the load from the floor beams to the wall, which helps to ensure that the aerated concrete in the places where the beams are placed is not overloaded and does not crack. The monolithic belt must be solid and placed around the entire perimeter of the building. This belt is essential for aerated concrete houses. In addition to distributing the load from the ceiling, it also serves to maintain the integrity and stability of the house structure, protects against possible destruction and deformation in the event of possible ground settlement and slight foundation movements. Therefore, special attention is paid to the device of a monolithic belt.

For the device of a monolithic belt, there are special U-shaped gas blocks.

Reinforcement is laid inside this block - 2-4 rods with a diameter of 8-12 mm.

The lower row of rods is laid on special gaskets so that a protective layer of concrete is formed under the reinforcement from below.

If there are no ready-made narrow blocks, then they can be cut from standard ones, aerated concrete is well cut. You can also make a U-block yourself by sawing out the inside of the block with a hand saw.

A frame is made from reinforcement.

Important! The reinforcement is not welded, but twisted with a wire.

At the junction, it is desirable to avoid right angles by bending the reinforcement with an arc.

Embedded parts (rods) can be attached to it, to which floor beams will be attached. From the outer side of the wall, the monolithic belt is insulated with polystyrene. The cavity of the U-shaped block is then filled with concrete.

and filled with concrete

Since special blocks are expensive, or they may not be commercially available, a monolithic belt can be made like an ordinary concrete belt with a metal frame.

In order to not visually see the place of its installation on the outer wall, the installation of the armo belt is carried out as follows, we install aerated concrete blocks 100 mm thick along the outer wall. Then, to avoid the formation of cold bridges, lay 50 mm polystyrene. On the inner side of the wall we put a formwork made of a wooden shield, we put an armored belt into the resulting space.

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Houses of aerated concrete blocks are built with a height of no more than three floors. Ceilings in houses made of aerated concrete are made taking into account the material of the walls, as well as gas blocks are selected with such characteristics that they can withstand the ceilings.

Types of floors for aerated concrete

• monolithic;
• reinforced concrete slabs;
• aerated concrete slabs;
• wooden or metal beams.

Slab floors

Floor slabs can be reinforced concrete or aerated concrete. Aerated concrete ceiling is lighter than reinforced concrete, aerated concrete slabs are assembled into a monolithic sheet thanks to the tongue-and-groove system. If plates without grooves and ridges are used, then reinforcement is laid in the gap between the plates and a sand-cement mortar is poured. Aerated concrete floor slabs are reinforced with mesh, they can withstand a load of 600 kg per 1 square meter, which is quite enough for an individual residential building.

Scheme of the device for flooring from aerated concrete slabs

Aerated concrete floor slabs can be of different sizes. The slab should be 20 centimeters longer than the span in order to go 10 centimeters onto the wall on each side.

Reinforced concrete slabs are similar to aerated concrete, but they are much heavier, so when using them, it is necessary to accurately calculate the load.

The advantages of slab floors include:

• fast installation;
• good noise and heat insulation;
• high bearing capacity;
• affordable cost.

Monolithic floors

For a monolithic ceiling, a reinforcing cage is made, which is poured with concrete. The thickness of the monolithic ceiling can reach 300 mm. A monolithic floor can be of any shape - this is the main difference from a slab floor, which can only be rectangular. A monolithic floor has a high bearing capacity - up to 800 kg per square meter, but it takes a long time and is expensive to make.

Monolithic floor device

Ceilings by beams

For this option, metal or wooden beams are used, on which plywood or board flooring is laid, and the space between the beams is filled with expanded clay, mineral wool, polystyrene foam or other heaters. This is a proven and inexpensive way to make an interfloor overlap.

An example of a wooden floor in a gas block house

Which floors are better for aerated concrete houses

Foreman's advice:
In houses from gas blocks, you can make any overlap, subject to an accurate calculation of the load on the walls. The easiest way is to make the floors wooden or from aerated concrete slabs, because the load from them on the walls is lower than from other materials, and besides, these options are the cheapest.

It is usually believed that internal partitions are not load-bearing, so they are made slightly lower than the load-bearing walls so that the ceilings do not rest on them. Aerated concrete partitions are usually made 2 centimeters below the ceilings so that the ceiling does not put pressure on them, because cracks may appear on the partitions from such a load.

Aerated concrete window and door lintels can be considered a type of ceiling - they are used with the design load according to the project. If the wall thickness exceeds 500 mm, prefabricated lintels can be used. The length of the jumper should be 100 mm more than the width of the opening in each direction.

Video: laying wooden floors in aerated concrete house

In this article, we will talk about what are floors for aerated concrete houses and what are the main characteristics of these structural materials.

The topic of choosing the optimal type of floors for such buildings is not accidental, since cellular concrete and structural elements based on them are widely used for the construction of low-rise residential buildings.

Laying the interfloor structure is one of the most difficult stages of construction

Overlappings and their features

Ceilings are one of the most important structural elements in any modern home. Interfloor horizontal modifications of these structural elements take on horizontal and vertical loads, and redistribute the resulting forces to the load-bearing walls.

Thus, the ceilings have to withstand the load of their own weight, as well as the weight of furniture, flooring and people living in the house. Another important function of these structural elements is to provide optimal parameters for the rigidity of the structure of a building object.

Based on the above, the following conclusion can be drawn. The choice of interfloor ceilings requires a competent and responsible approach, especially when it comes to houses built using aerated concrete wall blocks.

The fact is that concretes with a cellular or porous structure have lower compressive strength than materials. This parameter must be taken into account when selecting structural elements for arranging objects built using lightweight wall blocks.

Types of floors

In the building materials market, interfloor floors in aerated concrete houses are represented by a wide range of different modifications.

In accordance with the method of execution and in accordance with the type of material used in the production, these structural elements are divided into the following modifications:

• slab;
• monolithic;
• made on metal and wooden beams.

Let's talk about each of these modifications in more detail.

Slab type ceilings

In the photo - finished plates, which are left to be laid in the required order

This type of structural elements is assembled directly at the construction site using reinforced concrete slabs.

The number of plates is determined by their standard sizes and dimensions of the object. The dimensions of reinforced concrete slabs used in the construction of low-rise buildings are 1-1.5 meters wide and 1.3-7.2 meters long.

Reinforced concrete slabs used in the manufacture of ceiling structures have the designations "NV", "NVK", "PK" and "PNO". These concrete products are manufactured by large reinforced concrete plants and delivered to the end customer in a ready-made form.

In the photo - the procedure for laying reinforced concrete slabs

The advantages of slab floors include the following qualities:

• short deadlines and ease of installation work(if necessary, diamond drilling of holes in concrete can be used);
• bearing capacity not less than 800 kg/m², and therefore, the absence of the threat of collapse, regardless of the parameters of the mechanical load;
• the presence of special voids due to which a high degree of sound insulation and low thermal conductivity are provided in comparison with solid structures;
• affordable price in comparison with monolithic analogues;
• less weight in comparison with monolithic concrete structures, which is relevant for construction projects erected using cellular and porous blocks.

However, the use of plates has a number of characteristic disadvantages, including:

• The need to use special lifting equipment, which results in additional financial expenses and inconvenience if the access of large vehicles is difficult to the construction site.
• Limited choice of sizes.
• The need for professionalism and sufficient experience in carrying out installation work.

Monolithic floors

In the photo - a reinforcing structure for pouring a concrete floor

Such floor modifications are made directly at the construction site. To do this, a formwork is mounted at the construction site, in which a reinforcing cage is installed and further pouring of a cement-containing mortar, selected in accordance with technological requirements, takes place.

As a rule, the thickness of monolithic floors used in buildings made of lightweight concrete is 150-300 mm.

The advantages of these structural materials include:

• high bearing capacity;
• wide range of configurations due to independent arrangement of forms for pouring concrete (to finalize the configuration, cutting of reinforced concrete with diamond wheels can be used);
• wide range of sizes;
• the possibility of using this technology where the use of slab analogues is difficult or damaged.

Along with the advantages, there are a number of disadvantages, including:

• the duration of installation work and the long time required for a set of optimal overlaps;
• the need to develop a project taking into account the mechanical loads exerted on the structure and other operational features;
• the need to use large-sized special equipment, including mobile mixers and concrete pumps.
• the high price of manufacturing the ceiling, which negatively affects the cost of the entire construction.

Important: In the manufacture of monolithic ceilings, do-it-yourself concrete preparation using small-sized mixers is not allowed.
The solution of the required brand must be supplied in the volumes necessary for a one-time pouring of the entire structure.
Therefore, it is advisable to order ready-made concrete in specialized organizations that guarantee the conformity of products to the specified brand.

Ceilings on metal and wooden beams

Wooden floors in aerated concrete houses are popular for a number of reasons. They are easy to make and really light weight. Moreover, wooden floors can be assembled and used for their intended purpose without the need for long-term curing, which is typical for concrete products.

For the manufacture of such structures, a bar made of solid or glued wood is used. The gaps between the bars are filled with heat-insulating materials. Complements the design of the crate, which is stuffed on the bars, both from the top and from the bottom. Draft and finishing floors are installed on top of the crate, and on the other hand, a ceiling surface is equipped.

A similar design is the floors, in which metal beams are used instead of lumber. Such structures are characterized by a large weight in comparison with completely wooden counterparts. But in this case, the floors are more resistant to mechanical stress.

Among the disadvantages of the first and second solutions, the possibility of manufacturing structures with only a small area should be noted.

Important: With an increase in the floor area, its resistance to mechanical stress decreases, which is most noticeable if a prefabricated wooden structure is used in the house.

Output

So, now we know what the instructions for arranging various floors are, it remains to decide what is the best solution for a house built using aerated concrete.

Prefabricated slabs and cast-in-situ concrete structures are a good solution, but their weight and complexity of installation negate all the advantages. Ceilings based on metal or wooden beams are light and easy to install. Precast beam slabs seem to be the best option for a lightweight concrete home.

If you have any questions, you can find more useful information by watching the video in this article.

A structure made of aerated concrete has its own design features that require increased attention during its arrangement. When making a ceiling in a house from aerated concrete, it must be borne in mind that this material is quite light and mobile. Therefore, heavy beams in such a house are categorically not suitable, and the best option is a wooden floor. Such a frame will exert a minimum load on the load-bearing walls, which guarantees the subsequent stability of the blocks and the absence of cracks on the walls.

Advantages of wood flooring

In addition to light weight, it has a number of other positive characteristics:

Wood is a breathable material, which is very important for proper humidity and air circulation in the room, and even if only the ceilings are made from such raw materials, this will significantly improve the microclimate in the rooms.

Disadvantages of wood

Unfortunately, wood, in addition to its advantages, also has disadvantages that must also be taken into account when making a ceiling in a house from aerated concrete.

First of all, this material is fire hazardous, which dictates certain safety requirements in such a house.

The ceiling conducts sounds quite well, so during installation it is necessary to lay additional sound insulation.

Wood is very susceptible to excessive moisture and does not like temperature changes, under the influence of which it changes its characteristics. This point should also be taken into account during construction.

Wood is not a strong enough material, therefore, when making wooden floors of a house from aerated concrete, it is necessary to install a sufficient number of load-bearing elements.

Preparation for work on the manufacture of the frame of the ceiling

Before proceeding with the work, it is necessary to prepare both the material for the manufacture of the frame and the walls of the house. The fact is that aerated concrete is not a very strong material that does not tolerate compressive loads well, so it must be reinforced without fail.

This is especially important for interfloor frames, which include a wooden floor in an aerated concrete house with a basement. Such foundations bear not only the weight of the materials used in construction, but also the load from the furniture installed in the house and the people living in it. At the same time, the ceilings experience both vertical and horizontal loads, which subsequently have their effect on the aerated concrete walls.

Reinforcement of aerated concrete walls

Blocks of aerated concrete, simply planted on a mortar or special glue, do not always withstand the tensile load, which is why they reinforce the walls. Moreover, this event is best carried out not only immediately before installing a wooden floor in an aerated concrete house, but also in the process of building walls every 4 rows of installed blocks. In addition, such a procedure will prevent the interaction of wooden beams with the material of the blocks.

Beams will subsequently be attached to the reinforcing belt using special anti-corrosion plates. In order to perform reinforcement, strobes 12x12 mm in size are cut into the surface of the blocks, into which reinforcement is laid. In the case of application in walls, it is permissible to lay reinforcement in the seam gaps.

Wood processing

In addition to preparing the walls, it is necessary to compensate for all the shortcomings of wood raw materials. Before making a wooden floor in a house from aerated concrete, it is necessary to treat the material with special impregnations that prevent rotting, the appearance of fungus and mold, and also reduce moisture absorption. All these tools can be purchased at a building materials store or use the old methods of antiseptic treatment. For example, use bitumen or mastic as a waterproofing and antiseptic. It is also recommended to cover the material with means that prevent the ignition of wood.

Mounting Features

The specific characteristics of wood determine some design solutions in the manufacture of floors.

First of all, all load-bearing elements are reinforced with metal; for this, all joints in the ceilings are fixed together with stainless steel plates. If the area of ​​​​the room is large enough, it is necessary to add additional elements such as columns or crossbars.

The thickness of the beams is calculated depending on the planned load plus 15-20% in reserve.

Depending on the width of the span used and the load on the wooden floor in the aerated concrete house, the distance between the supporting beams is calculated. At the same time, the rule is observed: the larger the span, the more often it is necessary to install beams. This is necessary to prevent deflection of the beam under its own and accompanying weight.

Installation of load-bearing beams

The installation of load-bearing beams is perhaps the most important work, on which the reliability and durability of the entire floor structure will subsequently depend.

In order to install the beams, special niches are cut out in the blocks of their aerated concrete, into which the crossbars will be laid. The end of the beam is cut at an angle of 75 degrees, and the cut is treated with any available antiseptic. After that, the end of the crossbar is waterproofed with bitumen or mastic and it is wrapped with roofing material.

The beam is laid in the grooves on the walls, which also need to be thermally insulated with mineral wool or polystyrene foam, this will prevent the wood from getting wet. In this case, a gap of 3 cm is observed between the end of the crossbar and the walls of the niche.

After the final installation of the beams, the slots in the grooves are poured into place or with a special solution.

Very long crossbars, over 4.5 m, can destroy the lower part of the niche when bending down, so a 5 mm chamfer is made along the edge.

Arrangement of rolling and laying insulation

A wooden floor in a house made of aerated concrete (photo below) requires mandatory laying of hydro and thermal insulation. Initially, crossbars are made for attaching the skin. As a rule, bars of 50x50 mm in size are used, on top of which shields from boards are fixed.

At the bottom of the bars, the ceiling is sheathed, while drywall or chipboard is most often used. These materials also have a low weight, and the subsequent processing of such a coating is most preferable for finishing work.

On top of the boards, slabs of mineral wool or a more modern insulation - polystyrene foam are laid out, which performs a dual function - not only insulation, but also noise reduction.

Usually the thickness of the insulation is about 10 cm, but when performing a ceiling between the attic and the floor, as well as in the case of an unheated basement, the insulation height must be increased to 20 cm. If mineral wool is used, a vapor barrier is additionally performed to prevent moisture material and prevent condensation. In the case of using expanded polystyrene, this step can be skipped - such material itself is an excellent waterproofing agent.

Logs are laid out on top of the insulation with an interval of 50-70 cm, and a floorboard is mounted on them. At the same time, the gap between the insulation and the boards should not be filled with anything, it is needed for high-quality circulation, which will prevent the appearance of fungus and mold on the final surface.