Screed on the wooden floor: the necessary materials, preparatory work, lighthouses and reinforcement, fill and drying. How to make a screed on the wooden floor and as much as possible how to pour a wooden floor

Publication date: 07-09-2015

The wooden floors themselves are distinguished by sufficient strength and reliability, but sometimes there is a need to lay an additional screed directly on the prepared wooden base. Concrete screed is usually applied only in cases of the need to align the floor to any coating. If the full restoration of the wooden floor is too costly and does not pay for itself, then also resort to this method of alignment.

Often, the tie of concrete is recommended to do before laying polymer floors, ceramic tiles, when installing a warm floor system. In our article, we will look at the features of laying a screed of concrete on the wooden floor, the rules for the preparation of the foundation for this rather responsible procedure, the stages of the fill of the solution.

How appropriate is the screed for floors

So, how appropriate to perform the screed on the floors of the tree? Many believe that such work is done in advance to failure, that the floor of the floor will become cracking, it is impossible to align it, and the flooring will be subjected to deformations. How much such claims are correct?

Constructive concrete scheme

The concrete screed of wooden floors is performed according to special technology, the so-called unrelated screed is laid, ensuring the neutralization of all possible deformations that are subject to wood.

Many use a similar screed and with a warm floor device, although the opinions of specialists about the feasibility of such a "cake" are divided.

This is due to the fact that the tree is subject to deformation, that is, with temperature changes that occur when the warm flooring system occurs and turns off, the tree begins to shrink, and then expand. And this immediately affects the state of the screed and ultimately on the quality of laying an outdoor finish coating.

Therefore, before you arrange a concrete screed on the wooden floor, you should carefully weigh all the advantages and disadvantages of such work. If the screed is still flooded, it is necessary to follow all the recommendations for the performance of this work:

after inspecting the state of the floor, it is necessary to cover it with the primer with moisture protection;
after that, the waterproofing layer of the film is stacked, which is laid out the brassiness and has no surface defects;
installation of beacons and preparation of a solution for a screed;
pouring a cement screed, in height not exceeding five centimeters.

Among the features of laying the screed on the floor of the tree should be noted:

the weight of the fill must be large enough to ensure a dense fit of the layer to the floor;
the screed is made unrelated, that is, not tied directly to the surface of the tree (the film layer successfully prevents this);
you can not pour the solution directly on the fresh wooden coating, it is necessary to arrange a layer of waterproofing from the film material.

As we can see, it is quite realistic to perform a high-quality concrete screed on the wooden floor, although the feasibility of such work in many is doubtful.

It is best to lay a layer of CSP plates, which are then ground, and already lay the selected flooring.

Concrete has a great weight, and this is fraught with a screed snap, which can be broken in the lowest floor of the floor along with flooring. If it is still possible to avoid this installation, it is best to apply plasticizers when preparing a concrete mixture that provide mobility, plasticity, high base strength. This will increase both the waterproof of the screed, as the concrete absorbs well and holds moisture, which does not always have a positive effect on the state of the floor covering.

Back to the category

Preparation of materials for work

Before starting work on laying a concrete screed, you need to prepare materials and tools that may be needed at the time of installation.

In stock should have:

cement and plasticizers for mixing the mixture,
polyethylene film as a waterproofing layer,
sand,
acrylic sealant,
putty mixture prepared on an epoxy basis,
special moisture-resistant primer
metal reinforcing grid.

In this case, we comply with such conditions:

Waterproofing film should not have defects, breaks. It is necessary to put it with a mustache and with a small approach to the surface of the walls, so when calculating the material add percent fifteen to the total area. The film is attached to Scotch, it is unacceptable for the use of strap or nails.
To disguise the cracks and other wooden floor defects, in addition to special materials, a spatula for applying putty and sealants should be prepared.
When inspecting the floor, such tools such as a hammer, nails of self-tapping, with which the base of the floor will be strengthened (if discharged boards and other) are found.

Back to the category

Preparing the foundation of the floor

Concrete screed is applied on a carefully prepared floor base. It is necessary to examine each floor for the presence of traces of rot, cracks, cracks, check the strength of the attachment of the boards. Sometimes it is necessary to shoot strongly damaged boards, which are better replaced by new ones. Many experts recommend also to kill the floor, the Hats of nails at the same time must be dragged into a tree; Such fasteners are subsequently sweeping carefully.

The gaps and the winds are sealed with epoxy putty, in particular, the mounting foam is completely flooded. The joints of the boards must be treated with acrylic sealants to ensure the waterproofability of the base.

Such works are performed in the following sequence:

after diagnosing the base, the range of works to eliminate all defects is determined;
gaps and cracks are filled with putty and mounting foam (if necessary);
the joints between the individual wooden elements are treated with a sealant;
after the polymerization and drying mixtures, the wooden floor is cleaned from garbage, dust, a special moisture resistant primer is applied to its surface;
after drying the primer on the base surface, the waterproofing film of the mustache is rolled out, which is attached to the scotch and comes onto the walls for ten and fifteen centimeters. After completing the work, all excess films should be cut off;
when laying, it is necessary to ensure that the film is laid without distortion, folds, went smoothly. To ensure the best result, the reinforcing mesh is stacked onto its surface.

Now, using the construction level, we apply markup on the surface of the walls, then mount the waterproofing, place the racks lighthouses to provide rigidity. Lighthouses are fixed on the solution; This work is long and rather laborious, as the solution is very poorly strengthened on the surface of the film. The gap between individual beacons should not exceed the size of the rules that the concrete solution will be equalized.

Extend the life of the wooden floor in a country house with a concrete screed. In this case, the surface will become more even and durable. In the future, the floor is allowed to finish with any material, such as laminate, tiles or parquet.

The feasibility of concrete flooring on a wooden floor

Disputes regarding the feasibility of the implementation of the concrete screed on the wooden floor. Many say that the concrete will dry up the design, respectively, increases the pressure on the foundation. On the other hand, the fragility of the wooden basis will lead to the cracking of the concrete surface, the deformation of the floor covering. Also great is the likelihood that the floor will be uneven. However, there are many facts speaking in favor of concrete coating on the wood floor:

Concrete screed on the wooden floor is poured on a separate technology, taking into account the characteristics of the wood base. Laying is made according to the principle of an unbound screed, which neutralizes the possibility of deformations.
It is recommended to pour cement when the alignment and strengthening the foundation for the arrangement of solid flooring is required.
Concrete is perfect for a warm flooring device.

To avoid possible negative consequences of the interaction of wood and concrete, it is necessary to accurately comply with the recommendations for work. An important stage in the preparatory stage is the priming of a wooden surface in order to ensure sufficient moisture resistance. As a waterproofing, it is recommended to use a solid polyethylene film without defects. Separate parts of it must be laid by the brass. To obtain a smooth surface before the fill, you need to install beacons. The thickness of the concrete layer should not exceed 5 cm.

Since the concrete itself is a massive and heavy material, which can lead to a dialing screed on a wooden basis or in weak floor places, it is recommended to add plasticizers to a masonry mixture. These additives give a solution with sufficient fluidity, plasticity, durability, waterproof, and the screed does not destroy for a long time even at high loads.

Technology implementation

Wood floor concrete screed circuit.

A tie on a wooden basis is created to increase the strength of the boundary between the tree and concrete. In order for cement and the tree, they did not touch, did not affect the quality of each other, the concrete layer is cut from the walls with a damper ribbon, and from a wooden basis - polyethylene. Such a principle of arrangement allows you to preserve the concrete from cracking and destruction due to changes in the basement. The screed laid on the floors from the tree is characteristic of some features:

the mass of the fill must provide a dense fit of concrete to the floor;
cement should not touch the tree (the film layer is enough to obstruct the interaction);
it is forbidden to pour the cement mixture directly onto a wooden coating;
be sure to equip the high-quality layer of waterproofing.

Pour a concrete screed on a wooden surface only after calculations and preparatory work.

Calculations

Before proceeding with the arrangement of the floors, the calculation should be made. When using a finished sand-cement mixture, the amount of material is determined at the calculation, which from 15 kg / m2 of the mixture is obtained 1 cm layer, but a stock is required by 10%.

To prepare concrete solutions with your own hands, the material should be bought, given the proportion of 1: 2: 3 (cement, sand, crushed stone or gravel) or 1: 6 (cement, gravel and sand mixture). The required amount of material is calculated from the formula for multiplying the area of \u200b\u200bthe surface of the room and the required thickness of the screed.

Preparation of the foundation

Preparation of wooden floor to the screed.

First of all, a careful coating is carefully examined. If there are damaged, they should be replaced, and partially destroyed can be turned over. Back boards are attached nails. When installing lag in a step of more than 40 cm, it is recommended to additionally use the support bars. So that nails do not break the polyethylene film in the future, their caps are littered in 2-3 mm boards.

Old plinth must be dismantled. The sealing of the appeared gaps at the floor joint and the walls are recommended to do thin wooden boards. After the fill, they will need to remove. This will ensure the natural ventilation of the wooden base and prevent its rot.

If the wooden base has small gaps, a sealant or parquet putty on wood dust is used for sealing. For independent preparation of putty, you should take 4 volumes of sawdust and 1 part of oil paint.

If cracks are deeper, it is better to resort to the mounting foam.

Primer and markup

After the preparatory processing of the base, it is cleaned from dust and garbage. If necessary, grinding boards. A primer is applied to the tied surface. Such processing will create a protective layer that prevents the appearance of bubbles, absorb moisture from the cement mixture, the appearance of fungus and mold.

Marking is carried out by the usual or laser level. The zero mark may be at any height. It is recommended to put several marks on each of the walls at a distance from 35 to 70 cm from the floor, taking into account the thickness of the future screed. Then the markup is carried out in the reverse order - from the points on the wall to the floor. In both cases, the line is stated using a level. The feature of the future alignment is determined by subtracting the thickness of the screed from the minimum displacement.

It is important to consider that the standard screed thickness should be ± 5 cm. At the same time, each 1 cm concrete puts pressure in 100-110 kg / m2. Therefore, lags need to strengthen bars or metal chapels.

Reinforcement

The most popular two ways reinforcement - metal mesh and fibrovolok:

The technology of arrangement is carried out by unconventional method. Immediately poured a layer of concrete without beacons. There is a break in 1 month for frozen. Then the grid is stacked, lighthouses are installed and the second layer is poured. This technology avoids unwanted punctures of the waterproofing film.
The reinforcement of fiber film differs from the above method. The firming material is added directly to the concrete solution at the stage of its preparation. Fiberglass feature: its molecules are located in chaotic order, so when interacting with cement mix molecules, material is strengthened in all directions. The use of fiber fiber significantly reduces the total weight of the concrete coating, therefore, reduces the pressure on the wooden flooring.

When carrying out repair work, it is often required to perform a screed. If lags are used in an apartment or house as the overlap, then this does not mean that the screed on the wooden floor is impossible. For such work is used. Under the observance of a number of conditions, this type of work is fully implemented. The article will describe in detail the question of how to make a screed on the wooden floor and that it takes.

Features of the wooden floor under the tie

The main disadvantage of wooden floors is that the tree continues to change throughout the entire service life of the floor. Under the action of heat and moisture on the beams, cracks can go, as well as the tree can get worry and smell.

A completely different situation looks like a concrete basis. It is deformed and seats only during their maturation, and in the future it remains unchanged for many years.

The monolithic compound on the wooden floor would lead to the rapid destruction of the screed. To bypass the devastating effect, the technology of a floating scroll was invented, at which there is a layer between the ceilings, allowing "to live" a tree and concrete according to its rules.

The essence of the floor tie on wooden lags

The main secret of the screed on wooden lags is considered to be the separation of wood from concrete insulating layer:

Walls are isolated using;
The basis is separated by any insulating material.

In such a role, it is permissible to use the following materials: Parchment, rubberoid, polyethylene film, bituminous mastic, as well as new-fashioned rolled materials. The leader in applying among the materials described above is the polyethylene film.

The negative side of its use is the creation of a greenhouse effect for wood, and the positive parties include:

Creating a surface that maximizes the compound of concrete and film.
The lack of fastening does not deform the film during the shrinkage of the concrete base.
The unharmed and holistic insulating layer will not allow the concrete floor to be transferred, the floor of the tree, moisture.

To eliminate the negative effect of the greenhouse, the wooden base must be treated with antiseptic solution and a primer with a moisture-repellent property.

Cooking the wooden floor to the screed

This is one of the most important steps of all repairs, so all the actions below must be strictly performed. The work algorithm looks like this:

It is necessary to inspect all the floorboards on the floor, the floor with spoiled boards should not be in principle. All selected elements are subject to mandatory replacement.
It is also necessary to inspect all the carriers of lags and, if necessary, to change them as well.
After the inspection produced, the hollows are fed to lags.
Next, seal all the slots on the surface with the use of sealant.
Having waited for a complete drying of the sealant, you need to proceed to the processing of the floor with waterproofing primer.
Applying a laser level, the line of the first floor is noted.

When inspecting lag, pay attention to the distance between them if it exceeds 40 centimeters, then you need to install their additional quantity. If you need a pouring of a high screed, then the lag is also carried out, or their complete replacement for metal chawliers.

Wood floor insulation

This stage guarantees distinction on the wooden floor, the floor of concrete. To do this, carry out the following activities:

On the perimeter of the room on the walls attached the film damper. In addition to the specialized product, it is permissible to use foamed polystyrene or ordinary thin board. Ribbon is fixed on double-sided adhesion or construction stapler. The film should be higher than the future screed for several centimeters, and its thickness should be at least one centimeter. After installing the final layer, the excess film is deleted.
Next, put the polyethylene film directly on the basis. The nesting of the joints should be at least twenty centimeters, and it should be at least 25 centimeters on the wall. The joints are fixed with the help of tape. As a result, it should be a kind of trough, in which the pouring screed will occur. If the film defects were detected during laying of polyethylene, then such a product cannot be used as isolation, it is necessary to use a solid canvas.

It is unacceptable to mount lighthouses to the floor using screws or nails. It is necessary to use only "pyramids" from the solution to which the lighthouses are mounted and are aligned in the level of pure floor. The distance between the beacons should not exceed the length of your rule. And they are installed from the walls at a distance of twenty centimeters.

Reinforcement screed on a wooden floor

The product of reinforcement is a prerequisite for the screed on the wooden floor, the use of a classic reinforcing mesh is undesirable, as it additionally takes the design. In this case, you can use the microfiber.

It is added in the process of kneading the solution in the ratio of the fibra specified on the package.

Pouring screed on a wooden floor

Screed on the wooden floor is flooded in two possible options, the use of which depends on the area of \u200b\u200bthe room.

If the surface of the surface has a large area, then it is necessary to split it into individual sectors and perform a formwork. At the same time, work can be performed in several stages.

The room has a small square, then the fill must be performed in one stage, while from the beginning of the fill before its ending should not pass more than two hours, it is necessary to create a monolithic structure. In this case, it is desirable to participate an assistant to accelerate the production process.

The algorithm of laying the solution looks like this:

We lay out the solution slightly above the mounted lighthouses and perform alignment using the rule.
For the next day, it is necessary to remove mounted beacons, for this we open the solution and remove the lighthouses, then we proceed with the primer of the place of the excavation and fill them with a fresh solution. The top is leveling six surroc.
During the week, regularly moisture the surface of the concrete, and cover the polyethylene film. Also completely exclude the appearance of drafts in the room.

It is possible to produce further repairs after full drying of the screed, this period is at least four weeks.

In the above material, the principle of arrangement of the screed on a wooden base was considered. Based on this knowledge, you can fulfill this process yourself.

Screed on the wooden floor is not the best solution for the new floor device. However, despite this opinion, under compliance with all the technologies, it is realistic. In addition, there are structures of wooden floors that are in good condition easier to pour the bulk sex than redoing the entire design of the floor.

This article will be useful for those who build their country house. Making a spill floor on a wooden, easy to put a tile in the bathroom or kitchen at home.

Also for owners of country houses will be useful information about septic plates from concrete rings. You can select information about septicism and place an order.

Wooden floor designs

Before starting the conversation about the screed on the wooden floor, you need to deal with the designs of wooden, boardy floors.

It is unlikely that it makes sense to make a screed on the wooden floor, which is laid on the lags and the slab overlap with a thickness of 220 mm. The thickness of such a wooden floor is 70-77 mm and the best solution for such a floor will remove the wooden floor with the lags and make a screed over the concrete slab overlap.

Making a tie on the wooden floor makes sense if the lags of the floor stand on high brick columns. The height of such poles can reach 30-40 cm (or more) and it is not possible to replace them with a screed. Two photos of such floors you can look below.

That's precisely about the floors of such a design, we can talk as a possible base for a screed.

Features screed on wooden floor

Before adding to make a screed on the wooden floor, pay attention to the following:

The screed on the wooden floor refers to unrelated screeds, that is, a layer of such a screed will not be associated with the lower layer of the base and will be isolated, unrelated with a layer of floor. From here, some features of the screed on the wooden floor are followed.

Firstly, The wooden base under the screed should be very durable and fully fixed. Depreciation, which is so characteristic of wooden floor should be completely excluded. With the possible fluctuation of the wooden floor, the screed over it will be cracked, which is unacceptable.

SecondlyDepending on the selected material for the screed, the thickness of the screed can be quite thick. For example, using a cement-sand mixture for a screed, a screed thickness must be from 10-12 cm. Weight of such a screed will significantly increase the load on the wooden floor. If we consider that the wooden floor is laid on the lags, and between the lags there is a step (the distance between the lags) then with an increase in the load on the wooden floor you need to reduce the distance between the lags. In large rooms, the distance between lags can reach 85 cm. Therefore, deciding to make a cement-sand tie in a big room, you have to disassemble the floor, reduce the step between lags, putting new lags and restore the wooden floor again.

The workman is still, and perhaps it is a hundred times to think before making a cement-sand tie on the wooden floor in a large room.

In order not to disassemble the floor and not to reduce the distance between the lags, use the non-cement-sand mixture, but for example, anhydrite levels for the floor. The thickness of such a screed from 30 mm, the levelover does not require reinforcement and can be used for unrelated screeds.

Thirdly, Cement - the sand screed on the wooden floor is made, be sure to reinforcing the grid. This is done, again, to increase the strength of the screed. Moreover, the fiber fiber in the screed will not save you from the use of the reinforcing grid. That is, for a semi-dry screed, you will also have to make a reinforcing grid with cells of 100 × 100 mm.

Output. The use of cement-sand screed for large rooms with wooden floor is not justified by labor-intensive work. But. If the circumstances and conditions are such that it is impossible to avoid the screed on the wooden floor, then for the device, the screed is better to take a leveling room suitable for an independent screed, and not to use the cement-sand mixture. And in general, I would not consider the cement-sand tie, as a priority for a screed on the wooden floor, although the use of high-quality leveling will significantly increase the cost of the material for the screed.

Wood-floor screed material

To perform a screed on the wooden floor, you need the following material:

Film polyethylene thickness from 200 microns, for waterproofing layer of screed from wood and walls;
A mixture for a screed. About choosing a mixture, read a little higher. If you select the cement-sand mixture, then prepare the reinforcing grid, better with a stainless coating. The grid should not be in rolls. Why not in rolls?

You have to secure the reinforcing mesh on a wooden base, while you should not disrupt the waterproofing, that is, not to break the film. Think up how you will perform the mesh mount. At the same time, think over how you will fasten the lighthouses for the CPS screed, because the lighthouses are not accustomed to fix the base for fastening the beacons of polyethylene.

What I do these notes to. In my opinion, the device of the cement-sand screed on a wooden base in large rooms is better not to do. The volume of work and problems will completely overshadow the result. Replace the CPS to the "level" for isolated bases (unrelated screed). For example, on an anhydritic level for the floor.

Technology screed on wood

Wooden floor should be durable, still, dry and not rotten. The same applies not only to the floorboards, but also to lags and the columns on which it is laid. Rotten boards need to be replaced.

Important! It is impossible to make a screed, on the newly laid wooden floor, he can deform. The age of wooden flooring should be more than one year when operating the floor in the range of home temperatures. Although I can not imagine who needs to be tied to a new wooden floor.

Hats nails, which are nailed to the boards, you need to drown a few millimeters so that they do not break the layer of waterproofing film to be put on top of the board.

If your apartment is located on the first floor and under you a basement or earth, then the seams between the boards need to sharpen the epoxy putty. Epoxy putty is chosen because it does not miss moisture. Seams are closed in order for the film laid under the screed and boards, it was not evaporated.

If the joints between the wall and the floor are wide, then close them with construction foam, and from above epoxy putty and liquid waterproofing.

After drying, the putty on the wooden base is steel polyethylene 200 micron thick. Polyethylene is sprinkled with the walls on the walls of 10-15 cm. Two neighboring pieces of polyethylene put the bracket 20-25 cm. The junction between the polyethylene pieces, creemet not with a wing mounting tape. Scotch tape attach to the wall.

Polyethylene should lie smoothly without folds. Under the polyethylene there should be a clean wooden base without garbage.

Preparation of solution

Let me remind you, make a screed from the level of the level. The screed solution is done according to the instructions on the package. The mixture of the level is added to the water, and not vice versa. A mixture is stirred to the state of thick sour cream mechanically, a mixer on small revolutions.

How to check the glove of the mixture

To check the correctness of the thickness of the mixture, find the container with a diameter of 70 mm so that it contains 1 liter of the solution. From this cylinder, pour 1 liter of the solution on the plexiglass plate 50 × 50 cm. The diameter of the spreading solution should be 34-38 cm. So, the density of the solution is made correctly. The density of the solution must be checked constantly.

Street level

Unbound screed level should be more than 30 mm. For wooden floor, choose 50 - 60 mm. The screed level is better to measure the laser level. If the room is completely small, quite a construction level. In terms of the level of the laser, apply a line of screed along the wall and set the reference beacons (levels on the legs) on the floor surface.

Pouring tie.

The finished mixture of the level is poured continuously over the entire surface of the floor from a long corner to the output. For successful fill, you will need helpers. One breeds the mixture, the second continuously fills the solution, the third levels the solution in the level of beacons and marks, a special metal bar of oscillation movements (lifting and lowering the rod) along and across the cast surface.

Care of the flooded

Indoor with a flooded screed should not be drafts and low temperatures. If you, nevertheless used, a solution from the CPS, then cover the screed with polyethylene. Anhydride filling floor must be taken for 2 days from excess insolation (straight rays of the sun), too high temperature, drafts and water. After two days, the room needs to be ventilated.

Some conclusions of Articles

Before the tie, appreciate your wooden floor;
The cement-sand screed is very hard and will have a strong load on the wooden floor, so you may have to strengthen the wooden floor;
If possible, replace the CPS to a quality level for an independent screed;
Caps of the CPS on the wooden floor profitable only for small rooms, kitchens, baths;
Think a hundred times before applying a screed on the wooden floor in houses with wooden floors, remember the load.

And last. If you are planning to use tile as finishes, replace the screed on the wooden floor, if possible by level, styling cement-chain plates (CSP).

If in the room, whether the apartment, the cottage, the country house or summer kitchen is quite durable and not rotted with the time of the wooden or tiled floors, which are not at all satisfying the owners or does not match the standards, then these floors are not removed. Right on them, a concrete screed on the wooden floor is made. At the same time, all the high-altitude marks with existing doors are coordinated (if the repair goes in the old house) and various pipes: water, heating and sewer. It is likely that the lower part of the canvas of those doors that will be opened inside the room where the screed will have to be shortened by the bottom feeding. Sometimes the door is simply replaced, and all pipe wiring is reworked.

For the device of special screeds on the already existing flooring uses only those mixtures that can be suitable for this, because the execution of such work on the floor of the tree is a rather risky event. The risk is that if the floor is old or with rotten lower beams, the entire screed at one moment or gradually can collapse.

Cement-based cement-based hardware and rapidly hardening mixtures are just suitable for alignment of wooden floors. Better, strengthen such a screed with special reinforced fiber. The strength of such a screed for compression and deformation is best to check on the 28th day. Only in this case, there is a guarantee that the walking people and items on the floor will not damage it. Most often make a screed with a layer of 10 mm.

Cement screed on the wooden floor passes in several stages:

Preparation of the foundation

Floor strength is the basic condition for achieving a good result. The peeling or weak upper layer of the former cement-sand screed is eliminated by grinding or milling. Heated over the years of the floor of the floor fat, sometimes glue, as well as old water-soluble leveling mixtures, must be removed. All irregularities with a height of more than 10 mm before starting work are equalized with special cement-based mixtures. Complete alignment is performed only immediately after the final solidification of the mixture of penetrated into the recess. If the screed is kept on the old tile floor, then look at the bounced tiles. It is best to remove them at all, and the remaining space to align the mixture.
With the device of screeds on old wooden or so-called "black" board floors, absolutely all boards should be reliably nailed to lags. Those boards that bend or rotted are mandatory replaced with new ones. Swinging boards are additionally screwed by self-drawing to lags. In no case should not creak or fade. The holes that are found at the base of the floor and the places of all sorts of leaks of the cement mortar are close, and the gaps between the plates of such a floor are put off by a parquet putty on the basis of wood dust from wood or some self-made spacure. Make them 4 parts of any sawdust and only 1 part of the available oil paint. Water soluble putty are not allowed here.

When the screed is done on the wooden floor, all plinths are removed. They are replaced by more subtle small planks that will cover the slots between the wall and the floor. When such a plate is installed, all the slots existing between them and the floors are applied. That gap, which is located between the floors and the wall temporarily becomes closed with a special plank. After the recess of the last of the screed, this gap will be open again and thus will provide ventilation of the entire underground space. Ventilation is needed for "prevention" attendance of the bottom of the floor.

Similar to surface

The floor of the tree is grinning, and then vacuuming and covered with primer in accordance with all the instructions. The treatment of this primer dispersion improves the engagement of the leveling mixture of cement with the base and prevents the formation of unnecessary air bubbles. In addition, thanks to the primer, the water available in the screed will not quickly be absorbed into the base. Another important purpose of the primer is its property to improve the leveling of the leveling mixture.

Dry floors are treated with primer twice. And if the multi-layer type is aligned, the processing of the soil dispersion is carried out immediately before each leveling layer.

The floor, before processing the dispersion based on the primer should not even be a slightly wet, otherwise the priming will not bring the expected fruit.

Reinforcement of the base

On weak wooden floors, it is best to use a fiberglass grid needed to enhance the strength of the leveling layer. The grid is fixed directly to the base - floor, applying a pneumatic stapler for these purposes. Staples will prevent the mesh popup from the solution. You can print the grid directly during the process of applying a cement screed. The reinforcing system should be approximately in the middle or the lower third of the thickness of the screed, but in no case under it. Therefore, when scabing is clogged, it is necessary to take into account the force of scoring them into the surface of the floor.

Fix mix

Floor screed in a wooden house cannot pass without the mixture itself. Therefore, its preparation pay special attention. Usually use mixtures in bags of 25 kg. They are comfortable and do not occupy a lot of space. The mixture bag in a special container is poured 6.5 liters of water. If the desired consistency is not achieved, you can add 0.5 liters of water, but no more, otherwise the solution will be liquid and it will be difficult for them. In addition, in the overdose of water in the solution, peeling and weakening of the strength of the entire aligned surface can occur. Stirring water and mixtures produce a drill. Insert the nozzle in the form of a whisk in the cartridge. Mix at least a minute. It is important that the mixture is homogeneous - uniform. The premium mixture is suitable for only 15 minutes from the moment of its indemnification (mixing) with water. It is important to comply with the necessary temperature indicators of the floor and mixture. In particular, the solution should be no temperature below +10 degrees. In cold conditions, when the screed is made in a new home without heating, use warm water, its maximum temperature should be +35.

Applying a screed

The question is how to make a wooden floor screed until the end was disassembled. And now, when the solution and the surface of the wooden floor is ready to contact, proceed to the most important thing - applying a screed.
It follows to work at this stage without interruptions until the entire surface of the screed is not aligned. The mixture is applied with special steel or gear spatulas. After the fill, the aligned surface will become suitable for inherited walking by about 4 hours. If necessary, the resulting surface is polished. It is better to do it 6 hours after directly applying the mixture. Before grinding, the boards stood instead of plinths.

Sealing deformation seams

In places where there were deformation seams, for example, in the doorways, the layer of the aligned screed is cut around the grinder after the surface will allow to walk by itself. After this procedure, the seams are filled with a special elastic material designed strictly for seams.

Calculation of the consumption of the mixture, cleaning the tool

When calculating the consumption of the leveling mixture for a screed on the wooden floor, it is necessary to proceed from this ratio: for every 1.5 kg / m² of the mixture there must be a layer thickness of 1 mm.
And speaking of cleaning the tools, it must be said that all the unworthy remnants of the material are washed off with simple water, and the hardened mechanically wonder. The working tool is also washed with water, and immediately after the end of the work.

Screed on a wooden floor video

In this part of the article, you can watch a video showing how to make a screed on the wooden floor.