Wooden floors in the house made of aerated concrete (photo)

The structure, made of aerated concrete, has its own design features, which require increased attention in its arrangement. Making the ceiling in the house of aerated concrete, it must be taken into account that this material is quite light and mobile. Therefore, heavy beams in a similar house are not suitable, and the best option is a wooden floor. Such a frame will have a minimal load on the bearing walls, which guarantees the subsequent stability of the blocks and the absence of cracks on the walls.

Advantages of wooden flooring

In addition to light weight, the wooden floor has a number of other positive characteristics:

• This is absolutely environmentally friendly material.
• The cost of overlap, made of wood, is much lower than the frame of other materials.
• Mount the wooden ceiling in the house of aerated concrete with their own hands is not difficult and with due diligence even a novice in the construction is able to do. In addition, the work will take very little time and does not require the use of special equipment.

Wood is a "breathing" material, which is very important for proper humidity and air circulation in the room, and even if only floors are made of such raw materials, it will significantly improve the microclimate in the rooms.

Disadvantages of wood

Unfortunately, wood, in addition to advantages, there are drawbacks, which must also be taken into account, making the floor in the house of aerated concrete.

First of all, this material is fire dangerous, which dictates certain requirements for observance of safety precautions in such a house.

Overlapping sounds well enough, therefore at installation it is necessary to lay out additional sound insulation.

Wood is very susceptible to the effects of 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 in the construction.

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

Preparing for the production of the skeleton of the floor

Before proceeding with the work, it is necessary to prepare both the material for making the frame, and the walls of the house. The fact is that aerated concrete is not a particularly strong material that does not tolerate loads on compression, so it must necessarily be reinforced.

This is especially important for interstorey skeletons, which includes a wooden ceiling in a house made of aerated concrete with a basement. Such grounds bear not only the weight of materials used in construction, but also the load from furniture installed in the house and the people living in it. In this case, the floors experience both vertical and horizontal loads, which subsequently exert their influence on the aerated concrete walls.

Strengthening of walls from aerated concrete

The blocks from aerated concrete, simply planted on a solution or a special glue, do not always withstand the tensile load, and therefore the walls are reinforced. Moreover, it is better to hold this event not only just before installing a wooden ceiling in a house made of aerated concrete, but also during the construction of walls through every 4 rows of installed blocks. In addition, such a procedure will prevent the interaction of wooden beams with the material of the blocks.

On the reinforcing belt will subsequently be fixed beams using special anti-corrosion plates. In order to perform the reinforcement, in the surface of the blocks, fences with a size of 12x12 mm are cut, into which the reinforcement is laid. In the case of cement mortar, it is permissible to lay reinforcement in the walls and into the sutures.

Wood processing

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

Mounting Features

Specific characteristics of wood determine some design solutions in the manufacture of overlap.

First of all, all the load-bearing elements are strengthened with the help of metal, for this, all the joints in the floors are fixed with stainless plates. If the area of the room is large enough, additional elements such as columns or crossbars should be added.

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

Depending on the width of the span, the type of wood used and the load on the wooden floor in the house of aerated concrete, the distance between the bearing 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 exclude the deflection of the beam under its own and accompanying weight.

Installation of bearing beams

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

In order to install the beams, in the blocks of their aerated concrete special niches are carved into which the crossbeams will be laid. The end of the beam is cut at an angle of 75 degrees, and the cut is processed with any available antiseptic. Then the waterproofing of the end of the crossbeam is carried out with the help of bitumen or mastic and its winding with ruberoid.

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

After the final installation of the beam, the slots in the grooves are filled with a polyurethane sealant or a special solution.

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

Arrangement of rolling and laying insulation

The wooden ceiling in the house made of aerated concrete (photo below) requires the obligatory laying of hydro and thermal insulation. Initially, the cross-members for fastening the skin are made. As a rule, use bars measuring 50x50 mm, on top of which boards from boards are fixed.

At the bottom of the bars perform the roofing of the ceiling, with the most commonly used drywall or chipboard. These materials also have a low weight, and the subsequent processing of such a coating is most preferable for finishing works.

From the top on the roll of shields laid out a plate of mineral wool or more modern insulation - polystyrene foam, which performs a dual function - not only insulation, but also noise cancellation.

Usually the insulation thickness is of the order of 10 cm, but in the case of an overlap between the attic and the floor, as well as in the case of an unheated cellar, the insulation height should be increased to 20 cm. If mineral wool is used, an additional vapor barrier is applied to prevent moisture from condensation. In the case of the use of expanded polystyrene, this step can be skipped - this material itself is an excellent waterproofing.

Over the insulation lags are laid out with an interval of 50-70 cm, and the floorboard is mounted on them . In this case, the gap between the insulation and the boards is not worth filling, it is needed for high-quality circulation of air masses, which will prevent the appearance of fungus and mold on the finish.