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» Ceiling in the house of aerated concrete. Constructive choice of floor covering for a house made of aerated concrete. Feature of the technology of installation of wooden floors

Ceiling in the house of aerated concrete. Constructive choice of floor covering for a house made of aerated concrete. Feature of the technology of installation of wooden floors

If the construction of the house is carried out from aerated concrete, the best overlap for it is wooden. This is the most economical option that can be made by hand.

Only two people are required to install it. Another advantage of wood is its low weight, which is very important for aerated concrete.

Wooden floors in a house made of aerated concrete are interfloor, basement and attic. The fundamental difference between them is small, but there are some features of their arrangement.

Floor materials

  • Wooden beams. Material - solid wood or glued beams. Their dimensions should not be less than 50x150 mm. They should not have weak areas or large knots that could affect their bearing capacity. The wood must be dry at the time of installation. The specific dimensions of the beams depend on the length of the overlapped span and the spacing of their laying. This provides a design load of 400 kg per square of overlap.
  • Boards for ceiling and floor.
  • Wooden logs.
  • Wooden bars 5x5 cm.
  • Roll and coating waterproofing to prevent contact between wood and aerated concrete. If there is direct contact between these materials, the difference in thermal characteristics will lead to the formation of condensate, as a result of which the wood will rot.
  • Mineral wool insulation.
  • Material for the inner lining of the floor. OSB, plywood, clapboard, drywall, etc. can be used.
  • Antiseptic and heat-resistant impregnations. They are necessary for the impregnation of beams and boards. Impregnations prevent wood decay, damage by pests, and fire.
  • Cement and sand to create an armored belt.

Production of armored belt

Since gas blocks have a relatively fragile structure, it is necessary to form a reinforcing belt of reinforced concrete before arranging the ceiling on the walls. It will evenly distribute pressure loads over the entire area of ​​​​the walls, and also additionally strengthen the walls of the house.

To create an armored belt, U-shaped gas blocks are used, which are stacked as the top row. In the absence of such blocks, they can be made independently by cutting out recesses in ordinary aerated concrete. After laying the U-shaped blocks, a power frame of reinforcement is formed in the recesses. It consists of four longitudinal rods interconnected in single structure. Pieces of wood are placed under the bottom reinforcement to create a monolithic layer of concrete under the metal.

After that, concrete is poured into blocks. The surface for laying the floor is ready. The armored belt can also be made without U-shaped blocks, simply by pouring concrete into the formwork fixed over the walls, but this method is too time-consuming.

The device of interfloor overlapping

We list the procedure for performing work on the creation of an interfloor ceiling made of wood.

Approximate scheme of a wooden floor. Designations: 1 - floor; 2 - waterproofing; 3 - insulation; 4 - counter rail; 5 - beam; 6 - draft ceiling; 7 - vapor barrier; 8 - interior finishing.

Laying beams

The formation of the overlap begins with the laying of power beams on the walls. They are placed perpendicular to long walls Houses. The laying step usually does not exceed 1 m. B Alkas should go on the walls at least 15 cm. First, the extreme beams are installed, which are displayed in level, by means of a long and even board, placed on the end. There should not be a tight abutment of the extreme beams to the walls. A gap of about 3–4 cm should be left between them. Subsequently, this gap will be filled with insulation.

Installed wooden beams

The outer beams are mounted on the wall, after which the remaining beams are installed. Not only their level is controlled, but also the horizontal position. If the length of the support beams turned out to be insufficient, they can be built up with the same material. To do this, two beams are overlapped from 0.5 m to 1 m, after which they are bolted. Such a connection is considered quite reliable.

The beam is fastened to the armored belt by means of anchor plates in the following order:

  • The ends of the beams are cut at an angle of about 70 degrees to ensure the removal of moisture.
  • The tree from all sides and from the ends is covered with antiseptic and heat-resistant impregnations.

Tip: the ends of the beams must not be coated with oily impregnations or paint. In this case, the evaporation of moisture from the wood will be disturbed.

  • Parts of the beams entering the wall are coated with a layer bituminous mastic, and wrapped with several layers of roofing material.
  • The beams are fastened with anchor plates to the armored belt.
  • The outer ends of the beams with outer side The walls are insulated with polystyrene foam.

Beam insulation

The voids between the laid beams are filled. This can be done with bricks, but preferably with gas blocks. Between the blocks and the tree, it is necessary to leave gaps of 2-3 cm. These voids are tightly clogged mineral wool. This prevents the formation of condensate and dampness of the wood from contact with the walls.

Roof laying and floor insulation

To insulate the ceiling, it is necessary to make a roll. Along the bottom of the laid beams, 5x5 cm bars are attached. They can be fixed with long self-tapping screws. Boards of boards are laid on them, but separate cut-out pieces of boards can also be used. Insulation (mineral wool or expanded polystyrene) is tightly laid on the boards. The recommended thickness of the insulation is from 10 cm.

Log laying and flooring

On top of the created structure, perpendicular to the beams, logs are laid, which are also pre-treated with special impregnations. Logs usually have a smaller section than beams. The step of laying the log is 50–70 cm. The logs are attached to the beams. Floor boards are laid over the fixed logs. The bottom cover is sheathed OSB boards, chipboard, drywall or plywood.

Ground floor covering device

If the ceiling is made over a heated basement, its design is no different from the interfloor ceiling device. If the basement is cold, like basement, there are some features of its arrangement.

Since water vapor tends to circulate from warm room in a cold basement, the heat insulator will absorb a lot of moisture. To prevent this, a layer of vapor barrier is laid on top of it. It is also recommended to increase the thickness of the insulation layer to 20 cm. All beams, as well as others wooden elements floors must be protected from decay with special compounds.

Attic floor device

difference attic floor from the interfloor consists in the absence of a floor, as well as in the use of a thicker layer of thermal insulation. If an attic is arranged on top, then the floor is also made. A wooden floor for walls made of aerated concrete blocks, with correct installation, will ensure the reliability and durability of the built house. At the same time, the cost of work and materials will be much lower than when using reinforced concrete floors.

Aerated concrete is a material with which you can quickly build a house. It holds heat well and is easy to install. Aerated concrete buildings build a maximum of up to 3 floors. This is due to the calculation of the ultimate load. Overlapping in such houses are different types, depending on the wishes of the customer. Let's try to understand most of them.

Features and types of floors for aerated concrete

The floors of the first floor are a structurally important part of the building. It is on them that the entire vertical load of the walls of the house made of aerated concrete falls. Also, the ceilings have to withstand the weight of the installed furniture, flooring and people living in the building. In addition, they provide the necessary rigidity to the structure. Photo of wooden beams different section at the bottom.

It is especially important to correctly calculate and select floors for houses made of aerated concrete. This material, due to its porosity, has a lower compressive strength, which must be taken into account when choosing beams of different sections or other structures for a building made of gas silicate blocks.

There are several floor options for aerated concrete houses. Each of them has its pros and cons and is suitable in a particular case. Types best designs overlays can be divided into the following types depending on the materials used and installation technologies.

  • Monolithic;
  • On metal or wooden beams;
  • Tiled floors: from aerated concrete or reinforced concrete.

Below you can see a photo of the installation of structures with beams of different sections and others.

Wooden floors in aerated concrete house

Installation wooden floors V aerated concrete house on the beams is one of the best options. A feature of this design is the obligatory armored belt on aerated concrete, on which it will be installed. Wooden beams of different sections are fixed with studs, as well as metal corners and plates. This method is quite reliable for structures made of gas silicate blocks.

The device of wooden floors in a house made of aerated concrete on large-section beams differ from each other according to several criteria. First of all, this concerns the material from which the beams are made. The best forms are edged board or timber, in some cases a log. Increasingly in Lately I-beams are widely used for installation, a little less often glued laminated timber in a private house made of aerated concrete.

The arrangement of ceilings from wooden beams of large cross-section on an armored belt on aerated concrete may also differ in the way the voids are filled. For this, the roll of their shields on top of the cranial bars, as well as insulation, vapor and waterproofing materials can be used.

The arrangement and installation of wooden floors in a house made of aerated concrete along the beams on the armored belt may also differ according to the material used for filing the beams. It can be drywall sheets, plywood, chipboard, plastic lining, Often the bottom of a wooden floor in a house made of aerated concrete along the beams is left without filing, creating the effect of antiquity or embodying others design solutions. Photo and video solutions with beams and their The best way installation is below.

Monolithic ceiling in aerated concrete house

Monolithic overlap in a house made of aerated concrete, along beams of different sections, it is done independently at the construction site. The exception is the concrete itself, which is needed for installation. It is not recommended to do it in small-sized mixers, but it is better to order it ready-made directly from specialized companies. This is due to the fact that monolithic floors are a structure that is responsible for the safety of people living in aerated concrete houses. Manually preparing reliable concrete is quite difficult.

The most important part of a monolithic floor is the frame. It is made from small section reinforcement and required thickness, tying with wire. The metal frame will take all the load from the concrete. It is mounted in a pre-prepared wooden formwork. Usually the thickness of a monolithic floor in gas silicate houses is made with a thickness of 150-300 mm. heavy load gas silicate blocks may not endure.

The advantages of a monolithic design include:

  • The best bearing capacity, unlike beams of small section;
  • Variety of manufactured standard sizes for installation and installation in buildings from gas silicate blocks;
  • Wide range of configurations. You can pour a monolithic ceiling of any shape, and not just a rectangular one, like with beams. It can be seen in the photo.
  • Possibility of assembly or installation in buildings made of aerated concrete, where the use of tiled flooring devices is limited or completely excluded.

Monolithic structures in a house made of gas silicate blocks, in addition to the advantages, have a number of disadvantages. These include:

  • Timing. This includes both the duration of the installation itself and the time required for the concrete to gain the necessary strong parameters, in contrast to the ceilings along wooden beams in an aerated concrete house.
  • The need for specialized equipment for the installation of the best monolithic floors in the house, such as mixers, concrete pumps.
  • For the installation of the best monolithic floor in a house of gas silicate blocks, it is necessary to make a project for calculating the load.
  • A rather high price, which increases the total cost of installing a building made of aerated concrete, in contrast to the overlap on wooden beams.

Interfloor ceilings

The device of the best interfloor floors in a house made of aerated concrete on wooden beams of different sections or on a monolithic basis is one of the most important. Its feature is the need to install a floor on which people will walk and household items and furniture will be installed. As a result, the load on the best interfloor ceilings will increase significantly in the aerated concrete house on the installed beams.

One of the best solutions is the installation of a wooden floor, namely natural or glued beams, as well as modern I-beams. The step of their installation in the best interfloor ceiling in an aerated concrete house depends on the section, but usually it is 0.6 - 1.2 meters. The best length of large beams in the house is 6 meters. In the photo you can see the correct calculation and installation of the best wooden floor and the number of beams on the first and second floor.

In the wooden floor of an aerated concrete house, excellent beams are mounted at right angles to the load-bearing walls. They will be installed on a reinforced concrete reinforcing belt prepared in advance. Previously, under the wooden beams installed on the walls, in the planned arrangement of floors in the house of aerated concrete, a layer of waterproofing is laid.

The size of the niche should be 2-3 cm. The beam in the aerated concrete house should lie on the reinforcing belt for a length of 15 cm. The supporting part should be wrapped in a layer of roofing material over bitumen or with a self-adhesive membrane. In places where wooden beams are installed on a monolithic reinforcing belt of aerated concrete house, anchors or plates are installed. Look at the photo best solutions installations on gas silicate blocks.

Basement

According to the principle of the device basement on wooden beams aerated concrete house almost does not differ from the interfloor. Although there are some features.

  • If on ground floor aerated concrete house there are damp rooms: a bathhouse, a swimming pool, then it is necessary to lay a waterproofing layer along the beams before installing the insulation. If the interfloor ceiling in the house is wooden, then the material must be treated with an antiseptic to avoid the occurrence of fungus and rot.
  • With a cold lower floor of a house made of aerated concrete, for example, a pantry, a garage, the size of the insulation along the beams should be increased. Best Thickness- 20 cm. Photo with the installation of wooden beams below.
  • The difference in temperature between the floors of an aerated concrete house can lead to condensation. To avoid similar situation it is necessary to give a vapor barrier layer on top of the insulation of the wooden interfloor ceiling along the wooden beams. Look at the photo for the best installation solutions for gas silicate blocks.

Attic floor in a house made of gas silicate blocks

A feature of the device of the attic wooden floor in aerated concrete houses, in contrast to the interfloor, is the absence of laying the floor along the beams in most cases. Except for the moments when the attic will be used as living rooms.

If the premises will be used as a pantry, for example, then only the subfloor along the beams will be enough. Most often on the attic wooden floor in elite house from aerated concrete, instead of the floor, unlike the interfloor, they will simply lay bridges, along which you can exercise control over the state truss system or roofs.

To prevent cold from penetrating from an unheated attic into the interblock space, insulation should be laid along the beams. His optimum thickness should be 15-20 cm. Due to the lower load on the wooden floor in the house of aerated concrete, in contrast to the interfloor, it can be made from beams of smaller diameter, as seen in the photo.

The device of floors in the houses of their aerated concrete: video

Regardless of which material is chosen for the installation of floors in an aerated concrete house, the work requires special knowledge and skills. The video below shows step by step the process of installing wooden beams on gas silicate blocks.

For the installation of metal and wooden interfloor floors of a house from gas silicate blocks, the main stages are the manufacture of beams, their installation on special gaps in the reinforcing belt, the installation of flooring from boards or profiles, all necessary insulation and waterproofing layers, gender.

The monolithic works of the first floor consist of the preparation of the formwork, the manufacture of the frame and the pouring of concrete. Tiled interfloor are considered the simplest, you just need to correctly place the workpieces on the bearing walls of gas silicate blocks, as in the photo.

Overlapping of the first and second floors in aerated concrete house

For the device of overlapping the first floor in a house made of aerated concrete, any possible types of structures can be suitable. It can be tiled, monolithic, wooden or metal beams along a reinforced belt. The ceilings of the first floor in the house do not receive negative effects from either cold or damp basement, nor from the attic. Although often they account for the main load on the beams.

Usually heavy furniture, bedrooms are placed on the second floor, people often move. Therefore, you need to carefully calculate the load on interfloor monolithic wooden floors and beams in a house made of gas silicate blocks, see the photo.

After overlapping the second floor, there is usually an attic. If it is made in the form of an attic, where it is supposed to be placed living rooms, then the requirements for the interfloor wooden floor made of beams in a house made of gas silicate blocks will be the same as after the first floor. If the attic is non-residential or not equipped at all due to its low height, then you can make a lightweight structure without flooring or limit yourself to installing a rough one. A photo of the beams is just below.

Armopoyas on aerated concrete

The device of a reinforced belt on an aerated concrete house is a fundamental thing for floors of the first floor along wooden beams. It has several meanings. First, thanks to the interfloor monolithic armored belt the entire aerated concrete house is strengthened on the aerated concrete, reliably tightening the aerated concrete.

The room becomes more protected from sediment and deformation. Secondly, wooden or metal floor beams in an aerated concrete house are laid on the reinforcing belt. Photos and videos of the reinforced belt are just below.

In order to install a monolithic armored belt on aerated concrete under wooden floors, special material with a gutter is used. They set metal carcass from fittings. Then concrete is poured for the reinforced belt. To preserve heat outside the wall, polystyrene insulation is added for floors on wooden beams in an aerated concrete house.

If it is impossible to purchase special aerated concrete, then you can make a regular monolithic reinforced belt or make the necessary holes yourself. Photos and videos of the structure below, as well as the wooden beams located on them.

Choosing the best floor for an aerated concrete house: expert advice

What is the best floor for an aerated concrete house? Or which one is more reliable? Such questions are often asked by people planning to build a house from aerated concrete. There is no single answer to them. But it is possible to highlight the fundamental points.

  • Overlapping on the basement floor of an aerated concrete house is best done monolithic or block. Wooden and metal beams are significantly deformed under the influence of excess moisture, and even all the necessary waterproofing materials will not be able to completely protect them.
  • For an attic floor in a house made of aerated concrete, a light wooden structure made of beams, with a subfloor and a thick layer of insulation, is quite enough. On it will go minimum load which any design must cope with.
  • For interfloor overlapping of an aerated concrete house, you can choose both tiled and monolithic or using wooden and metal beams option.

But aerated concrete also has a minus - due to its low strength, when pressure is applied to it from ceilings, the walls can crack. For this reason, when building floors in such houses, it is necessary. Next, we will talk about wooden floors in a house made of aerated concrete.

Advantages and disadvantages compared to floor slabs

Wooden beams boast their lightness and ease of installation. There is an erroneous opinion that a reinforcing layer is not needed for light wooden floors. This is fundamentally not true.

For aerated concrete walls, regardless of the type of overlap, an armored belt is always needed!

In the case of wooden floors, its construction will distribute the load from the beams around the entire perimeter of the walls and prevent cracking of aerated concrete from point loads.

The advantages of wooden beams are:

  1. Environmentally friendly, as wood is a renewable natural material.
  2. Small mass.
  3. Low thermal conductivity compared to concrete structures.
  4. Low price compared to other types of floors.
  5. Large assortment to choose from.
  6. Easy to install beams.

There are also negative sides to wood:

  1. fragility. Sooner or later even the most good overlaps may start to rot.
  2. Low strength - a tree will not be able to withstand as much weight as a concrete floor could.
  3. Combustibility ( natural materials flammable).

Despite such significant negative qualities, a tree is still chosen much more often, and here's why: special compounds for impregnating wood can extend its service life, protect it from decay and ignition. And low strength is eradicated by using more beams and reducing the laying step.

Now consider concrete floors and their disadvantages:

  1. The first and most significant disadvantage is the high cost of concrete floors. Not only are the ceilings themselves expensive, they will also require special equipment (a crane) to install and transport them. So for the installation you will have to pay a certain amount of money. Wooden floors do not have this minus - you can install it yourself. If the beams are small, then two or three people will be enough. The heavier and more massive they are, the large quantity people will have to be involved.
  2. High weight. We have already said that installation will require special equipment. And it will also require a more expensive foundation.

As you can see, all the shortcomings are connected only with the price. To make a final decision, check out the article about.

Types of beams, advantages and disadvantages of each type

For the construction of floors between floors of a building, I usually use only three types of wooden beams:

  1. Whole.
  2. Glued.
  3. I-beams.

We will figure out which of them are most suitable specifically for each design, highlight the disadvantages and advantages of each type.

From a solid bar

Beams made of solid timber are distinguished by their strength, but they are inferior in the maximum possible length. In order for the beam not to bend over time, it is recommended not to install it longer than 5 meters. That is, timber floors are only suitable for small houses.


Of the significant disadvantages, one can single out the fact that, without proper processing, the floors can eventually begin to rot and become moldy. Do not exclude the risk of fire.

Attention!

From glued timber

Glulam beams have one undeniable advantagetheir length without deflection can reach 12 meters.


Glued beams have the following advantages:

  1. Special strength.
  2. Ability to cover spans up to 12 meters.
  3. Small mass.
  4. Longer service life.
  5. Do not deform over time.
  6. Relatively fireproof compared to conventional timber.

However, this material is much more expensive.

Wooden I-beams

I-beams considered one of the most durable and reliable due to the shape of the profile, because they consist of several layers, each of which is protected by various impregnations.


The advantages of I-beams include:

  1. High strength, rigidity due to its shape.
  2. No deflections.
  3. Noiselessness in operation - the structures do not creak when pressure is applied to them, unlike other types of floors.
  4. The material does not crack, does not dry out over time.
  5. Ease of installation.

Calculation of the required section depending on the span length and loads, laying step

The number of beams, their dimensions, the installation step depend directly on the area of ​​\u200b\u200bthe room and the expected loads. Most experts believe that the optimal load on the floors is 0.4 tons per one square meter area (400 kg / m 2). This load includes the weight of the beam itself, the mass of the draft and finish coat floor above and ceiling below, insulation, communications, as well as furniture and people.

The best section for rectangular wooden beams is considered to be with a height to width ratio of 1.4: 1.

The cross section also depends on what kind of wood the floors are made of. Now let's bring average recommended values ​​​​at a laying step of 60 cm:

  • If the span is 2 meters, then minimum cross section should be 7.5 by 10 cm.
  • With a span of 2.5 meters, the beam should measure 7.5 by 15 cm.
  • If the span is three meters, then it is customary to use beams 7.5 by 20 cm.
  • With a beam length of 4 and 4.5 m, it is customary to use them with a section of 10 by 20 cm.
  • For the construction of a five-meter ceiling, crossbars with a section of 125 by 200 mm are used.
  • The six-meter ceiling is made of beams measuring 15 by 20 cm.

If the step increases, then the size of the beam section should also be increased.

Here is a table of sections of wooden floor beams, depending on the span and installation step, with a load of 400 kg / m2:

span (m)/
installation step (m)

2,0

2,5

3,0

4,0

4,5

5,0

6,0

0,6 75x100 75x150 75x200 100x200 100x200 125x200 150x225
1,0 75x150 100x150 100x175 125x200 150x200 150x225 175x250

If it is not planned to load the floors (in case non-residential attic for storing light things), then lower load values ​​​​from 150 to 350 kg / m 2 are permissible. Here are the values ​​​​for the installation step of 60 cm:

Loads, kg/rm. m Cross-section of beams with span length, m

150

200

250

350

On the net you can find online calculators for calculating bearing capacity wooden beams. I will give a link to one of them: http://vladirom.narod.ru/stoves/beamcalc.html

Also, for example, you can replace one beam with a section of 100x200 with two boards 50x200, sewn together with bolts or nails every meter. They do this for various reasons:

  • there are no beams with the required section on sale;
  • boards with a smaller section weigh lighter, so they can be lifted to the top alone, and fastened there already.

It is recommended to stitch the boards so that the wood fibers are in different directions. This increases the strength of the structure.

Floor types

Now, only three types of floors are mainly used:

  1. Beam - consists of beams.
  2. Ribbed - beams laid with an edge.
  3. Beam-ribbed.

The first option is standard, it was for him that the dimensions of the section were described. Ribbed and beam-ribbed ceilings are practically not used in the present due to the increased time of work and the complexity of the design, so we will not dwell on them.

Installation work

The main stage is, of course, the installation of beams. It implies competent preparation at the stage of construction of the first floor.

At first the tree must be pre-treated fire-fighting compound, as well as liquid from decay(this must be done with the entire crossbar). This must be done immediately after purchase. If the material will lie for some time before laying, it must be shifted: a row of beams, then 3-4 bars across, then the next row. So the board will be ventilated and dry. This will prevent mold from forming.

The part of the beam embedded in the wall should also be covered with:

  1. bitumen or primer.
  2. Ruberoid, roofing felt or glassine.
  3. Liquid waterproofing, consisting of bitumen.
  4. Linokrom.

This is done due to the fact that wood in contact with concrete and blocks can absorb moisture and eventually begin to rot.

For aerated concrete, the maintenance moisture content of 3-5% is considered normal. No matter how dry the blocks seem, direct contact of wood with this material is unacceptable.

The beam must be embedded in the load-bearing wall by at least 12 cm. The ends are cut at an angle of 70 degrees in order to ensure the removal of moisture.

Attention!

Cut off the end of the beam waterproofing material no need. Otherwise, access to the evaporation of moisture will be closed. Required to leave a small air gap between the end of the beam and the wall.




Beams are laid on a reinforced surface (to enhance the strength of the structure). Instead of an armored belt, some manufacturers in small houses allow resting on aerated concrete with a lining of a metal strip 6x60 mm.

The fastening of beams to the armo-belt in gas silicate houses is carried out with anchor bolts.

For insulation from the side of the street, a heater can be placed in front of the beam. As a rule, the outer ends of the beams from the outside are insulated with expanded polystyrene.

Filling the voids between the laid beams is done with gas blocks. Between the gas silicate and the timber, gaps of 2-3 cm are left. They are tightly clogged with mineral wool, thus preventing the formation of condensate and dampening of the beams.

Do not forget to consider the placement of the stairs to the second floor, since the opening must be provided immediately:

Well, that's all, the floors are ready. Now you can proceed to the next finishing.

Post-installation finishing

Upon completion of the construction of the ceiling, it is recommended to wait before starting to carry out finishing work so that the beams shrink. Overlappings are recommended to be “hidden” behind a fine finish before the onset of cold weather so that they are not exposed to damp weather conditions.

You also need to make a roof. If this cannot be done before winter, then the entire structure should be covered with a film or awning material, including windows, so that moisture does not enter the building. But it is still recommended to leave small through “gaps” so that there is an optimal level of humidity inside the room.

Now directly to the post-installation finish. First, a draft ceiling is made from the bottom of the ceiling. It can also be made from plywood, if the construction of, for example, a false ceiling is provided for in the future.

You should start from the bottom of the beam, since insulation is usually placed between the ceiling and the floor, which also acts as sound insulation.

After installing the ceiling, insulation and vapor barrier are already placed on top (if necessary). For example, if the upper and lower floors are constantly heated, then insulation is not necessary. But it should be noted that insulation works and how soundproofing. If the second floor is an attic, then you definitely need to insulate - otherwise the heat will go away.

After laying the insulation, you can lay a subfloor (it will help in the further construction of the building, since you do not have to install scaffolding).

Fine finishing must be done after windows appear in the house and it shrinks.

Wooden floors are one of the most optimal solutions. After all, wooden beams are strong, light and at the same time cheap. They are easy to install and do not put excessive pressure on the walls. Main, correctly calculate and be sure to process a wooden structure.

To increase the strength of the structure, metal I-beams can be used instead of wood. In this case, you will need a crane for installation. And metal costs more than wood. And if you are ready for such expenses, then isn’t it easier then to opt for? Since the main advantage of overlapping on wooden beams in an aerated concrete house is cost savings.

Ceilings in a house made of aerated concrete are carried out, as a rule, along an armored belt. With all the unique advantages of aerated concrete, the strength of the blocks is too low to build aerated concrete houses higher than two or three floors. The overlap along aerated concrete walls is mounted on a design reinforced reinforced concrete belt, passing along the entire contour of the enclosing walls at the basement level, under each interfloor overlap and under the roof. Armor belts are necessary for an aerated concrete house not only as supports for beam systems. The floors of the house carry and redistribute the load on the supporting structures of the walls, and aerated concrete has a lack of fragility. Supporting beams on light porous blocks can lead to local punching, therefore, regardless of the type of overlap, armored belts are performed, including in order to increase the spatial rigidity of the structure.

The requirements for floors of houses made of aerated concrete take into account the insufficient compressive strength of aerated concrete (due to the cellular structure of the blocks). The cover must provide:

  • Optimal strength and rigidity (no deflection);
  • Margin of safety plus the calculated load, including efforts from people, furniture and all floor equipment, plus the own weight of the floor and the walls above;
  • Fire safety of the dwelling;
  • Comfortable level of sound insulation.

Types of floors for aerated concrete houses:

  • Slab;
  • Monolithic;
  • Prefabricated-monolithic;
  • Beam - on wooden or metal beams.

Various types of floors modern cottages, modern and expressive - tented, coffered, arched, brick vaults and others - for gas-block houses are too structurally complex and uneconomical.

The difference between an aerated concrete house is a necessity reinforced belts for any terrain, even if seismic phenomena in the construction area are completely excluded. The beam ceiling, regardless of the material of the beams, is always equipped according to the armored belt. The first stage of the armo-belt device is the alignment of the exact horizontality of the upper cut of the bearing walls, which is unrealistic in practice. All defects are eliminated by erasing the aerated concrete material until it is completely leveled, then the overlap is performed according to the technology.

Interfloor ceilings in aerated concrete house

Any type of overlap is possible, provided that the load calculation is performed. The optimal floor for an aerated concrete house is considered to be a similar floor from factory autoclaved aerated concrete slabs. But classic wooden beams are still more popular.

Floor slabs in aerated concrete house

The difference in mass of traditional hollow and ribbed reinforced concrete slabs with aerated concrete slabs also determines the choice. For quick build Houses prefabricated ceiling optimal if there are conditions:

  • You can drive up to the construction site, adjust special equipment, there is an area for storing plates;
  • The house is simple in plan - without curved walls, possible for aerated concrete block masonry, and spans up to 6.0 m.

The slabs are mounted along the armored belt (options for brick pillows under the slab floor are possible if there is a calculation). The slabs are monolithic with a cement-sand mortar, the ends of the floor are thermally insulated.

Monolithic ceiling in aerated concrete house

Justified complex and time-consuming monolithic overlap for unique buildings of aerated concrete, complex in plan and/or having curved walls. Concrete is made on light aggregates (polystyrene, vermiculite), the reinforcement cage is calculated, usually at least two meshes - lower and upper. It also requires high-quality formwork for overlapping, inventory is best. Homemade board and board formwork requires deflection control and careful insulation, and is usually applied locally in small difficult areas. The total thickness of the slab is 150-200 mm, depending on the span, and each cm of thickening will greatly affect the total load on the aerated concrete walls.

Professional calculation for monolithic floors - required condition. In addition, in order to reduce and redistribute loads, they change the design: not a flat floor, but a ribbed one - with beams and thin layers concrete pouring. But this option is closer to the beam monolithic ceiling, since the efforts are perceived by the ribs-beams. The formwork is non-removable and includes reinforcing metal profile sheets. Concrete pouring must be continuous, cold joints are excluded. As for the laboriousness of manufacturing such a ribbed monolithic floor, it is considerable, as well as the cost, but for large-span cottages (9.0 m or more), this expensive type of non-standard floor is quite justified.

Advantages of monolithic floors:

  • In terms of bearing capacity - more than sufficient;
  • It is possible to block any span, configuration, up to fantasy buildings in terms of;
  • With a span of more than 6.0 m, when additional columns or racks are not planned, a monolith is the only solution.

To the minuses of monolithic concrete floors include:

  • The long process of concrete hardening and curing is at least 28 days. We are no longer talking about fast construction.
  • Load calculations are an indispensable condition, and qualified and accurate.
  • You can't do without special equipment and custom-made ready-mixed concrete of high quality. Automixers, concrete pumps, equipment for vibrating concrete - a significant increase in the cost of construction.
  • Constant monitoring of the process of curing concrete, care and creation of heat and humidity conditions. Both in frosts and in summer heat, a thin monolithic ceiling in a private construction site is extremely costly both in terms of finances and labor. Optimal time construction sites in middle lane end of summer, beginning of autumn.
  • The resulting high price of overlap.

Beam ceilings

A gas block house with a standard configuration and distances between bearing walls up to 6.0 m is traditionally covered with deck beams - metal or wood. Rolled metal for beams is quite an expensive material, and requires careful anti-corrosion treatment, and special equipment is needed for the installation of heavy profiles. Therefore, a wooden beam ceiling for a house made of aerated concrete is still in the lead among private builders. An important advantage of a wooden floor is the possibility of independent work.

Aerated concrete is used for the construction of buildings, the strength of which is determined by a number of factors. It is necessary to take into account the quality of the material used and determine the execution of the interfloor structure. Thinking about the construction of the floor of the lower floor in the house or the formation of a reinforced concrete base over the basement, you should figure out how to make floors in the house from aerated concrete. It is important to take into account the dimensions of the beams, the magnitude of the load on bearing bars and form a reinforced concrete base of the required thickness. Consider how the installation of plates is carried out.

Requirements for the installation of reinforced concrete floors for buildings made of aerated concrete

Ceilings for a house made of aerated concrete are critical elements of the building. After all, the margin of safety of gas blocks does not allow the construction of buildings with a height of more than three floors, and aerated concrete loses in terms of strength characteristics ordinary concrete. That is why a set of requirements is imposed on the ceilings of aerated concrete structures.

The interfloor structure must have the following properties:


An important point is the uniform distribution of loads transmitted by floor slabs or the surface of the support beam to the main walls. To enhance the rigidity of the structure and equalize the efforts, an armored belt is constructed on aerated concrete. It is necessary for any wall thickness. Reinforced concrete edging along the perimeter of the box prevents cracking of the blocks on which the floor beams rest.

About the device of interfloor overlapping - choosing the best option

Thinking about the construction of a building envelope above the basement of the building and between floors, developers have to look for the answer to the question: “What floors are best for aerated concrete houses?”. Some believe that the optimal solution is a wooden floor, characterized by low weight, affordable price and maintainability. The main argument in choosing this option is the ease of installation of wooden beams.

However, there are limitations:

  • the allowable interval between the walls is only 6 m;
  • wood needs antiseptic treatment;
  • the bars do not have the necessary margin of fire resistance;
  • mold and fungal colonies may form on the beams.

That is why it is advisable to give preference to a ceiling formed on a metal profile, or to choose an interfloor structure made of reinforced concrete.


For the construction of houses from aerated concrete, both prefabricated and monolithic structures floors

When choosing an option, it is important to consider the results of the load calculation, as well as the following factors:

  • functional purpose of the building under construction;
  • the distance between the main walls;
  • the number of floors of the future building;
  • the magnitude of the forces acting on the overlap;
  • variable and constant loads;
  • properties of the building materials used;
  • material and size of the section of the floor beams.

It is advisable to entrust the choice of overlapping option professional builders who will develop project documentation and correctly perform the necessary calculations.

How to make floors in aerated concrete house - recommendations from professionals

Regardless design features floors for an aerated concrete house, the general algorithm of actions for the construction of an interfloor structure includes the following steps:


  • choose the design of the floor according to the results of strength calculations;
  • use high-quality building materials;
  • lay the bars in the prepared grooves on the aerated concrete walls;
  • control the horizontalness of the structure using a level;
  • waterproof the overlapping structure with roofing felt or polyethylene;
  • use a sheet heat insulator to reduce heat loss;
  • to carry out installation in strict accordance with the technology.

To ensure a long service life of the overlapping structure, it is important to choose the right type of overlap and comply with the requirements of the technology.

Features and types of floors for an aerated concrete house

Each variety interfloor overlap has its own characteristics.

For a building constructed from aerated concrete blocks, the following options for overlapping structures are used:


Let us dwell in more detail on each option for overlapping.

Prefabricated ceilings from standard slabs for aerated concrete buildings

Using standard floor slabs for aerated concrete houses, it is easy to build a separating structure over the basement part of the building, as well as between floors, in a limited time. Quantity reinforced concrete panels determined by the size of the building. It is important to choose the right slabs, taking into account the span. In this case, the size of the supporting surface on the aerated concrete wall must be at least 15 cm in accordance with the requirements of building codes and regulations.


Ceilings from reinforced concrete slabs - one of the most economical options

Panels are used to form the floor various designs and sizes:

  • smooth, the length of which is 6 m. The thickness of smooth slabs, depending on the design, reaches 20 cm;
  • ribbed, with a length increased to 9 m. The height of the ribbed panel for an aerated concrete house does not exceed 30 cm.

Laying is carried out on the planned surface of aerated concrete walls. A thin layer of cement mixture is applied to the end plane.

Advantages of the prefabricated option:

  • accelerated pace of installation work;
  • increased design reliability;
  • long service life;
  • high soundproofing performance;
  • thermal insulation characteristics;
  • acceptable level of costs.

Design cons:

  • the impossibility of performing work without lifting equipment;
  • the need to select panels in accordance with the dimensions of the building;
  • additional costs for transporting heavy products.

To improve the heat-insulating and noise-protective characteristics, the internal cavities in the slabs are filled with mineral wool.

Solid ceiling for walls made of aerated concrete blocks

Monolithic ceiling is built directly on construction site. The process of erecting a solid structure is quite laborious, however, it is indispensable for a non-standard configuration of the structure. Developers are attracted by the fact that the monolithic floor in the house made of aerated concrete does not have butt joints and is different flat surface.


Monolithic overlap is also acceptable

The sequence of actions for the construction of a monolithic version:

  1. Assemble the formwork for pouring a solid slab.
  2. Install the support posts and seal the gaps between the boards.
  3. Tie and place the reinforcing cage inside the formwork.
  4. Prepare concrete mortar in the required amount.
  5. Perform concreting, ensuring a layer thickness of 150-200 mm.
  6. Spread the concrete evenly over the surface and compact it.
  7. Plan the top plane of the reinforced concrete slab.

The technology allows the use of a metal profile for the construction of formwork, which greatly simplifies the work and allows you to form a flat ceiling surface.

Advantages of one-piece construction:

  • increased load capacity;
  • the possibility of pouring with an increased distance between the supports;
  • lack of butt sections and ideal flatness.

TO weaknesses relate:

  • increased labor intensity of work;
  • long construction cycle associated with concrete hardening;
  • increased spending;
  • the need for a concrete pump;
  • problematic performance of work at a negative temperature.

The one-piece option is in demand when it is necessary to concrete the ceiling in a building of a non-standard shape.

Prefabricated-monolithic version of the floor for the construction of the ceiling of the first floor

Prefabricated-monolithic technology allows you to form floors different ways:


Prefabricated monolithic structures are a justified material for floors
  • by stacking standard plates with subsequent reinforcement and concreting of the surface layer;
  • placement between parallel-laid beams of polystyrene concrete blocks with further reinforcement and pouring with concrete.

The second method, which does not require the use of lifting equipment, is more preferable. It has a number of advantages:

  • ease of implementation of technological requirements;
  • increased strength of a monolithic-prefabricated structure;
  • high soundproof properties.

With the help of granulated expanded clay, mineral wool or polystyrene foam sheets, high thermal insulation characteristics are provided. For the construction of the ceiling by the prefabricated-monolithic method using polystyrene concrete blocks, it is necessary to correctly calculate the distance between the beams, taking into account the dimensions of the blocks.

Metal and wooden floors in an aerated concrete house on load-bearing beams

Beam technology allows you to quickly build ceilings in small aerated concrete structures based on the following elements:

  • wooden bars;
  • metal profile.

The first installation method does not require significant costs, unlike the expensive method using a metal profile.

The beam ceiling construction technology provides for:

  1. Laying beams on the supporting surface of the walls.
  2. Placement between the bars of insulation.
  3. Formation of the crate on opposite sides of the bars.
  4. Laying waterproofing material.
  5. Finished floor and ceiling construction.

Advantages of a beam ceiling:

  • ease of installation;
  • accelerated pace of construction;
  • low cost.
  • the possibility of independent work.

Technology cons:

  • the possibility of use in buildings with a height of no more than two floors;
  • reduced fire resistance in fire hazardous situations;
  • reduced service life compared to reinforced concrete structures.

Despite the shortcomings, the beam method is popular in private housing construction.

Summing up

Prior to commencement of construction activities, it is necessary to determine constructive option and learn how to make floors in aerated concrete house according to the requirements of the technology. It is necessary to take a responsible approach to the performance of work, the quality of which determines the stability and durability of the aerated concrete structure.