Anyone who has dealt with repairs understands how costly and difficult process. Repairing flooring is one of the most expensive parts of a renovation, requiring a lot of time, patience and money.

But when you see the finished result, you understand that all your efforts were not in vain. Parquet flooring is the highest quality, most expensive and beautiful view flooring.

What is parquet?

Parquet flooring is a type of flooring made from natural wood. It happens:

• piece, small in size, 3-6 cm wide and 15-90 cm long.

• parquet board. It looks like laminate and has no fixed dimensions.

• art. Is different different colors and dimensions, when laid it gives a certain pattern.

As a rule, such coating is made from hardwood, with particular preference given to deciduous varieties (oak, beech, maple). The most expensive floors are made from exotic trees- teak, mahogany, wenge.

Parquet boards have a huge number of advantages:

• This is an environmentally friendly material.
• at proper care will last for several decades. All you have to do is sand it down and re-varnish it and it’s as good as new.
• looks expensive and beautiful. It is immediately obvious that this is a natural wooden covering.
• It has low thermal conductivity and is not cold to walk on even in winter.
• shockproof, resistant material, which can withstand heavy loads, unlike laminate or linoleum.
• You can create unique designs that will give your home even greater status.

What should be the base for laying parquet?

Having chosen a parquet board for the new floor, you can begin its installation. To do this, you need to prepare the base for the floor.

The finished screed (new or old does not matter) must satisfy the following criteria:

• height difference is 1-3 mm per linear meter. Determined using a level.
• humidity up to 2-3%. Tested with a modern moisture meter.

If there are any unevenness, the cracks must be covered. If the humidity levels are higher than the required value, then you can put a vapor barrier film on the floor.

The concrete surface must be sanded and then a primer applied. This will strengthen the top layers of the screed and improve the fastening of the boards.

Laying parquet using glue method

Parquet laying glue method on a screed without the use of plywood is based on fixing the boards to the base with glue. In this case, it is better to give preference to elastic adhesives.

The process itself looks like this:

1. We treat the floor with a synthetic primer.
2. Lay out the boards of the first two rows in the order in which they will be glued. Apply glue to boards or concrete.
3. We lay the first board, leaving a gap of 6-12 mm from the wall.
4. Using a special block, we knock the second one to the first board. You must have time to glue the boards within 10 minutes, otherwise the glue will harden. So we collect one row.
5. If last board requires pruning, then a new row must be started from the resulting residue.
6. We insert small wedges into the gap between the wall and the floor.
7. After several rows are ready, you need to check their evenness and absence of gaps, and then finish the entire floor.
8. Upon completion of the work, the seams are sealed acrylic sealant.

>Floating floor installation

The main advantage of this method is that seams remain invisible to the eye, which compensate for further compression parquet board. This parquet can be laid glue method, only the parquet is glued not to the base, but to each other, or using the lock method.

The installation process is as follows:

1. The first board is laid out starting from the left corner, with the “lock” to the wall. The side that is adjacent to the wall should not have grooves. They need to be cut off.
2. We lay the second board, at an angle, on the edge of the board of the first row.
3. We start the new row with the rest of the board of the first row. If its length is less than 30 cm, then saw off half of the new one.
4. All other rows are laid out in the same order as with the glue method.

For stronger adhesion of the boards, it is necessary to use wooden or rubber hammer, tapping it lightly on the connected floorboards.

The floating method is suitable for small areas. On large surfaces it will creak and may warp.

The final stages of installing a parquet floor on a screed

1. After the glue has dried and the parquet board has firmly adhered to the surface, it must be sanded. This can be done using grinding machine in several stages, gradually reducing the grinding grain size to 3.
2. Then all existing cracks must be puttied using a special mixture based on water or solvent. Remove excess using a spatula.
3. After the putty has hardened, the floors are sanded again.
4. Then the surface of the parquet is primed.
5. Next you need to apply varnish. It will protect the floor from moisture, improve the aesthetic and mechanical properties of the parquet, and protect against cracks. It is best to apply 3-5 layers of varnish, and sand and polish again in between.

There are many types of varnish. You should choose based on the desired end result. If you want to have bright, shiny floors, use glossy varnish, they increase the illumination of the room, but it is worth considering that dust and dust are immediately visible on such a surface. small scratches. Matte and semi-matte varnishes create a feeling of comfort and smooth out the contrasts of wood grain.

Laying parquet yourself is a responsible decision. However, you should not be afraid and you can make your task easier: do not use plywood as a base for parquet. Modern adhesives have excellent adhesive properties and firmly glue the parquet to the concrete base. The main thing is to work carefully, slowly, following all technical instructions.

Three-layer parquet belongs to the category of stable floor coverings. Therefore, it can be laid either with glue or in a “floating” (independent) way. To ensure a durable floor when installed on a screed, follow our recommendations.

In most cases, parquet boards are made from oak. Less commonly used are ash, walnut, cherry, iroko and other types. Only solid wood is used, but some of them behave completely unpredictably in combination with base heating systems. Therefore, it is not recommended to install parquet made of maple, beech, and exotic species on “warm floors” of any type, be it the water type or thermomats.

The coating is assembled using the “floating” method using tongue-and-groove locks of several formats:

Laying parquet boards on a concrete floor is carried out in two ways:

1. “Floating”, that is, a coating sheet is formed that is not attached to the base in any way.
2. Glue is the most reliable and durable method. In this case, an adhesive elastic composition is required for polymer based with indication - for concrete floors.

Perhaps someone will also remember installation using fasteners, but hardware is used in combination with plywood, chipboard or any other prefabricated screed. This is not suitable for mineral bases.

Laying parquet on screed or glue is done offset. This means that all rows are shifted by 1/3 relative to each other. This is the most the best way installation of long coverings, since a sufficiently strong circular strapping of each element of the canvas is formed.

Laying parquet boards on a screed - a step-by-step guide

First, let's list the materials and tools that will be required for work:

Laying parquet on concrete screed- This is the final, final stage of repair, so all other work must be completed by this time. Recommended air temperature is from +18 to +24 °C, relative humidity level is 40-60%. The floor heating system turns on in 14 days and turns off in 2-3 hours.

In this case, it is necessary to comply with the acclimatization conditions: the parquet in packaging should be delivered to the premises 2-3 days before the start of work, and opened immediately before installation.

Laying parquet boards with glue is most often carried out in cases where there is a risk of change linear dimensions very high (consistently increased humidity levels, serious changes in climatic conditions). Or if the assembly area exceeds 120-200 m². The maximum permissible width of the coating laid in a single, continuous sheet is up to 15 m.

The technology for laying parquet boards using the “floating method” is as follows:

Preparing the base

Absolutely all manufacturers require that the concrete floor be smooth, dry, durable, free of debris, old coatings, oil and other stains. Acceptable level differences - up to 2 mm for every 2 meters of the base. A 2-meter control rod is used for checking.

If the sand “crawls out” from the screed layer, then it is necessary to prime the floor with a strengthening compound. You can also use special reinforcing canvases (Multimol from Wuqing, etc.).

Humidity of a cement-sand mixture screed or concrete floor should not exceed 2.5%, anhydrite - up to 0.5%. The percentage of moisture content must be checked with a contact moisture meter.

The next step is the waterproofing deck. The film is spread over the entire surface with an overlap of 15-20 cm, the joints are taped. Next you need to lay the backing end-to-end. If a coniferous variety is used, then, according to the recommendations of the manufacturers, it is laid diagonally with trimming of the outer plates.

Layout plan for parquet flooring.

Before assembly, you must carefully measure the room again and draw a layout diagram to scale on a sheet of paper. This is done in order to accurately calculate the dimensions of the extreme strips. Their width should not be less than 50 mm. Otherwise, the first row is shifted by the missing centimeters.

Laying flooring material

Parquet slats are removed from the packaging and laid out on the floor. Because the upper layer Made from natural wood, the surface may differ in tone or pattern.

Styling wooden coverings must be produced in longitudinal direction. This best option, since the percentage of shrinkage of wood products along the length is significantly lower than the transverse shrinkage.

Installation starts from the length of the wall from left to right. A tenon is cut off at the end plank, the board is laid in place and plastic or wooden wedges are installed to provide a gap between the wall and the covering. The first row is assembled, the second begins with the trimmed lamella. If necessary, the connection is compacted using a tamping block.

The last row is cut to the specified dimensions with a miter saw, assembled along the end, then inserted into the gap and pressed with a metal bracket.

To form a pipe outline, you need to “cut” the bar with a pencil, cut it and cut it out required hole in compliance with the rules of expansion joints. The board is installed, the section along the edge is coated with glue and put in place.

Installation of baseboards and other moldings

Remove all wedges around the perimeter and activate the “warm floors”. Screw a decorative strip that matches the tone and texture to the wall, doorways install transition strips. For columns and the like, flexible PVC thresholds can be used.

The method of laying parquet boards on a screed using the adhesive method repeats the first stage (preparing the base). But the installation itself proceeds as follows:

Caring for parquet boards

In order for the assembled coating to serve without problems for many years, it is necessary to:

• Install dirt-proof rugs at the entrance, and silicone or textile mats under furniture wheels;
• Stuff or stick felt or plastic protectors onto the legs of cabinets, tables, chairs and other furniture items;
• Do not use rough bristles or abrasive brushes for cleaning. detergents or aggressive chemicals;
• Avoid sudden changes in humidity and temperature.

Use a vacuum cleaner for daily cleaning. Purchase as cleaners special series care products, including stain removers and surface fresheners. And don’t forget to periodically renew the protective coating:

Rice. 8 (Renovation protective coating parquet floor)

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Why do you need to know how to lay parquet boards on a concrete floor step by step? Understanding the process will allow you to do the installation yourself without the cost of craftsmen and unnecessary materials. As for the choice in favor of natural parquet, it fully justifies itself. Wood copes well with heat conservation and sound insulation, and is available in a wide range of colors and textures. This floor will last for several decades without requiring special care.

There are several ways to lay parquet flooring on concrete.

In order for the parquet board based on a natural floor to last the period stated by the manufacturer, it is important to adhere to certain rules regarding the preparation of the base and materials. It's about about the following indicators:

1. The norm of deviations of the subfloor surface from horizontal plane. Important parameter, assumes deviations of no more than 2 mm for every 2 meters of length, regardless of direction.
2. The maximum inclination of the concrete floor surface to the horizon. It also has implications for the future use of parquet flooring. Acceptable rate- up to 0.2% of the length of the room.
3. Subfloor moisture level. The concrete screed must be completely dry before installing the parquet board. The permissible humidity level is up to 5% by the time the floor is installed.
4. Temperature and humidity level in the room where the installation work. The parameters of the tree will depend on this indicator. Humidity should be between 40-60%, temperature - from 18 to 23 degrees above zero.

The quality of the base directly affects how long the parquet will not require repairs

And the last no less important indicator is the compressive strength of the screed. The strength of concrete depends on it. The norm is 150 kgf/cm2, typical for concrete M150 and above.

It is worth considering that a damaged concrete screed will require mandatory renewal using self-leveling mixtures.

Options for flooring on concrete screed and technology

You can install the parquet board either directly on the screed or on wood materials- racks or logs. They do this in three ways:

• adhesive;
• floating;
• using fasteners.

In the first two options, before learning how to lay a parquet board on a concrete floor, it is worth paying attention to the construction of a continuous substrate. It will become the intermediate layer. In the latter option, the boards are attached directly to plywood laid on the base or joists with a distance of 0.3-0.4 mm.

The parquet floor is assembled on a pre-arranged base

Features of installing boards on a concrete screed imply the mandatory installation of a waterproofing layer, for example, in the form polyethylene film- the most affordable material. It is important that the film is laid with an overlap (at least 20 cm) and secured with tape, with an overlap of 10 cm from the wall.

The substrate mentioned above is laid as the next layer after the film. Polystyrene, cork or polyethylene foam are suitable. Just as in the case of the waterproofing layer, the strips of the substrate are fastened together with tape. It is considered the most convenient and safe cork material as a substrate.

In the case when the choice falls on the adhesive method of fastening, it would be appropriate to use waterproof plywood as a backing. It is attached to the base using self-tapping screws. The device begins by moving from the walls to the center of the room.

Laying plywood backing with glue

An important step is calculating the amount of parquet boards. If it is necessary to trim the last row by more than 5 cm, then the first row must correspond to its width. The slats of the first row are fastened to the wall with a tenon. This is necessary to ensure a tight fit. In this case, the spike on the longitudinal side is cut off.

A gap of 10-15 mm must be left between the wall surface and the board, taking into account the ability of wood to change parameters under the influence of the microclimate in the room. To maintain the gap, stakes are used. The floating flooring method involves the use of a special hammer to tap the parts connected by the locking method.

Features of methods for laying boards on concrete

As noted above, laying parquet boards can be done in several ways. Let's look at each of them in detail.

Installation using fasteners implies additional waterproofing and insulation concrete base. As for attaching the slats, the process has much in common with the floating fastening process. To achieve the result, lamellas are chosen with a thickness of 0.20 cm.

Prepared plywood floor on which parquet boards will be laid

The installation technology involves installing dies on logs or a plywood base mounted on logs. The structure based on lags must be leveled, and the elements are attached to the screed using dowels or self-tapping screws. The assembled planks on a plywood base are secured with nails or self-tapping screws, twice the length of the board. They are driven into the grooves of the dies at an angle of 45 degrees without disturbing the installation.

The floating floor installation method also has its own characteristics. The main one is the lack of fastening with a concrete base. The canvas is obtained from dies fastened together, not fixed to the base.

Achieving a tight connection is achieved through a specially designed lock system, which does not require additional fasteners. This flooring option is suitable for installation in rooms with normal or low level loads that cannot negatively affect the “behavior” of the boards during operation.

The easiest way is to lay the parquet board directly on the concrete base without using plywood or joists. This option is especially relevant when the main requirement put forward to parquet floor- rigidity.

If concrete covering without unevenness and differences, it is advisable to lay the parquet board directly on concrete

In this case, the adhesive method will allow you to obtain a “blind” canvas, tightly fixed to the concrete screed. To do this, use a special polyurethane adhesive for parquet, avoiding choosing mixtures based on water based. For maximum strength, the boards are laid on the base, simultaneously working with the locking system.

In conclusion, we note that for correct installation parquet boards on a concrete screed, the main thing is the readiness of the base in compliance with the requirements listed above. As for the choice of mounting method, much depends on the purpose and area of ​​the room. In spacious halls with an increased level of load on the floor, it would be advisable to lay parquet using the adhesive method with additional fixation of the dies with self-tapping screws for strength. In residential premises with a moderate level of load, the floating method will be sufficient, simplifying the repair of individual coating elements if necessary.

It is difficult to argue with the opinion of craftsmen who claim that a real wooden floor can only be made from parquet or parquet boards. Traditionally, parquet is laid on a prepared substrate or on joists. Modern quality multilayer parquet board allows you to lay the material even on concrete. The pleasure is not cheap, but the quality of the coating is very high. Outer surface The floor covering is lined with hardwood inserts, traditionally used for the manufacture and installation of parquet. Therefore, the floor turns out to be beautiful and durable, but on one condition, the master who undertakes the installation must perfectly understand how to lay a parquet board on a concrete floor.

What is parquet board

The classic version of a typesetting covering made from small parquet boards is quite rare today, primarily due to the high price of the material. A board 400-500 mm long and 40-50 mm wide was cut from solid oak or elm, carefully finished and sorted according to the pattern and surface texture. As a result, high-quality oak parquet cost an astronomical amount of money; in order to lay a parquet board, it was necessary to find an experienced craftsman. The material required daily care, periodic sanding, sanding and wax polishing.

Modern parquet is much easier to use. Manufactured in two versions:

• In the form of a solid thick parquet board made of solid oak or beech wood;
• In the form of a lamella glued together from a pine base, with an outer insert made of hardwood.

For your information! The dimensions of a parquet board are several times larger than the dimensions of a classic parquet fragment, it is much cheaper and easier to handle; it is quite possible to lay the board on a concrete floor with your own hands.

Parquet made from solid wood is much more expensive than a three-layer coating, so it is used as finishing for expensive renovations, offices, apartments and executive premises. At the same time, glued parquet boards, even with external cladding from expensive varieties wood is becoming increasingly popular due to its relatively affordable price and the ability to lay the material with your own hands.

Parquet boards are produced in the form of lamellas up to 250 mm wide, 2200 mm long, and 12-14 mm thick. The top layer of oak or beech may have an additional oil or varnish coating, which prevents the most sensitive part of the parquet from absorbing moisture and subsequent warping. A tongue and groove is cut on the sides of each lamella, allowing the parquet boards to be laid into one hard floor covering.

Laying out two-layer parquet boards, laying technology

There are several ways to lay a parquet board on a concrete floor:

1. On plywood base with fastening the lamellas using self-tapping screws or pneumatic nails. In fact, this is the most complex and durable way to lay parquet boards and make the floor as durable and reliable as possible. The only drawback of this method is the inability to disassemble the parquet floor in the event of force majeure;
2. Lay floating or in a free way. In this case, the parquet board lies freely on the surface of the concrete floor, without attaching the laid board to the base of the plywood base;
3. Laying parquet slats on an adhesive base. This method is used for very high concrete floors, when it is not possible to lay a backing layer of OSB or plywood.

The worst enemy of a parquet board is open moisture and water condensation, so craftsmen prefer not to lay parquet directly on a concrete floor, even if there is an intermediate layer of primer and protective film. A cold, damp concrete surface always becomes a place for condensation of water vapor, causing swelling and warping of the supporting surface of the parquet board.

Experts recommend laying parquet on a wooden, plywood or cardboard base for two reasons. Firstly, in this way it is possible to additionally compensate for surface defects for laying parquet, and secondly, the adhesion of the base of the parquet board to the concrete base of the floor is improved.

Before you make a choice on how to lay parquet boards, you need to improve the quality concrete surface until as smooth as possible, without bumps and humps.

Preparing the concrete floor surface for laying parquet

High-quality preparation of a concrete floor before laying parquet requires enormous patience and a significant investment of time and effort. Assembling a flooring from parquet boards is often much easier than leveling a concrete base. But it is extremely important to level it. A parquet floor is not even a laminate or linoleum, which can be laid on almost any concrete screed. On a base with small flaws, with depressions and a slope, a laminate coating can be laid, and only if a high-quality substrate is used.

Why is it so important to lay parquet on a perfectly flat and rigid base surface? The fact is that the behavior of a parquet board is fundamentally different from a classic parquet board. Relatively hard parquet board large sizes on uneven surface will definitely start “playing” under your feet or under the weight of furniture. As a result, the joints between the parquet flooring will automatically undergo shear and fracture, which will ultimately lead to the destruction of the lock and detachment from the adhesive base.

To install a high-quality parquet board that will last for a couple of decades, you need to do the following:

If the error is within the normal range, you can lay parquet; if during all the manipulations it was not possible to level the concrete surface, then it makes sense to make a self-leveling self-leveling floor, which will allow you to lay parquet without a base or with minimum thickness lining material.

If the concrete floor is on the ground floor, and the height allows you to lay another 20-25 mm of leveling mixture, then it would be more rational to use self-leveling base. Otherwise, you will need to lay cushioning material made of OSB, waterproof plywood or very thick corrugated cardboard. The thickness of the lining is selected as ¾ of the thickness of the parquet board.

Laying parquet boards

Before you put it down plywood sheets, concrete is processed thin layer acrylic primer. In order to lay as firmly and accurately as possible underlay base made of plywood, the glue should have the consistency of thick sour cream. It is applied to the concrete with a brush and rubbed with a wide steel spatula.

After this, you can lay down sheets of lining material. The procedure is quite labor-intensive, but there is no need to rush. As in the case of leveling a concrete surface under a parquet board, when laying plywood you must try to get the most even horizontal surface possible. The sheets are laid in a checkerboard pattern or in a “running pattern”, the seams are sealed with sealant on acrylic base. After about two days, the seams and the plane of the lining layer are checked with a horizontal level and sanded with a belt sander.

Installation of adhesive-based parquet boards

If the concrete base can be leveled with required quality surface, it makes sense to lay the parquet board directly onto the concrete using glue. With this solution, it will be possible to lay the package faster and better than when using a wooden backing.

For gluing parquet, two types of glue are used - on acrylic resin and on a two-component polyurethane base. Both glue options allow you to lay parquet with high quality adhesion, so it is not necessary to buy the most expensive brands of glue. Previously, parquet and linoleum were laid on a concrete floor using bitumen-styrene mastic used for waterproofing roofing coverings. The quality and durability of this option were quite high.

Before laying the first two rows, restrictive wedges are installed along the wall, providing a gap of 10-12 mm between the first row and vertical surface. The glue dries quickly, so it is prepared in small portions and, if possible, used immediately. Adhesive layer Apply with a notched trowel, as in the photo, only on an area the size of a single board, after which the first parquet flooring is laid out with a tenon to the wall. In addition to the supporting surface, the glue must be placed in the lock so that the joints between the parquet boards are also glued.

Each subsequent row must be trimmed and laid so that the end seam between the boards is shifted by 1/3 of the length relative to the previous row. Each board must be correctly connected to the previous row, and most importantly, it must be carefully aligned in a horizontal plane and tacked.

After installation, excess glue is removed and the seams are sealed with acrylic sealant. After 4-5 days you can start finishing parquet

In a similar way, you can lay a parquet board on a backing made of plywood or pressed fiberboard.

Free laying parquet

Wooden lined High Quality parquet boards can be laid without the use of nails or adhesive compositions. Typically, such a coating is laid for small rooms, in which the difference in temperature and air humidity can reach significant values. For example, a glazed terrace or a living room.

In this case, the parquet flooring is assembled from individual boards, similar to a laminate flooring. Such parquet is held on the surface of the lining layer only due to the interlocking of the locks, which allows it to expand freely when heated or increased air humidity.

Conclusion

Before you begin laying the covering, parquet material must spend at least a week in the room where it is supposed to be laid. The boards will gain the required level of moisture, and the floors will not creak or deform due to excess or lack of moisture. After laying the parquet, you will need to sand the seams and pre-sand the surface. Next, all that remains is to treat it with mastic or apply a varnish coating.

Laying parquet on a concrete screed is carried out in several ways: with and without plywood backing. Before you begin the installation procedure, you should find out what the differences between them are, and in which case you cannot do without a plywood layer. If you follow the entire installation algorithm correctly, the result will be a strong, stable and durable coating.

What is the difference between parquet and parquet boards?

Although the names are quite similar, parquet and parquet boards are not the same thing. The only similarity between them is that both are made from natural wood. But they differ significantly from each other in their design:

1. Parquet is made from solid wood, in this case, not the most wasteful varieties are used. Thickness finished product fluctuates between 17-20 mm.
2. Parquet board- This is a three-layer material in which the bottom and middle layers are made from the least valuable wood species. But to create the top layer they use valuable species tree. The average thickness of the finished product is 14-15 mm, of which only 4-5 are valuable species, therefore the cost of the material is lower compared to parquet.

Operational differences should also be noted:

1. Parquet reacts sensitively to any changes in external environment. Therefore, in the room where parquet is installed, it is necessary to regularly monitor the humidity level, temperature regime. Direct contact with water should be completely avoided.
2. Parquet is more repairable than parquet boards. It can be sanded and varnished several times, so it returns to its original appearance. In the case of a parquet board, such a maneuver can happen, but no more than twice. It all depends on the thickness of the decorative layer.
3. Due to the fact that the top layer of the parquet board is too thin, it quickly wears off due to intense loads.
4. Parquet boards are practically maintenance-free. It can be washed with a wet cloth, but parquet cannot.
5. The process of laying parquet is more labor-intensive than parquet boards, although parquet is easier to repair and restore.
6. The parquet board does not require any work after installation, as it is already equipped decorative coating. Parquet, on the contrary, needs sanding and varnishing.
7. The service life of parquet is 70 years or more, while parquet boards will completely wear out after 15-20 years.

Tools for work

Laying parquet boards on a concrete floor should be carried out only after the surface of the base has been completely cleaned of old coating, oil stains, construction and household waste. The surface must be free of dust, carefully cleaned and treated with a primer.

Important: If you have just poured a concrete screed, be sure to give it time to dry. If the thickness of the concrete base is up to 5 cm, then drying will take from 4 to 6 weeks.

To assemble parquet, you will need to use the following tools:

• parquet hammer;
• jigsaw or saw with small teeth;
• sharp knife;
• materials for marking (tape measure, cord, pencil);
• level;
• drills;
• limiters and tamping block;
• spatula made of stainless material;
• scraping apparatus;
• construction vacuum cleaner;
• flat and angle grinder.

In addition, you will need to use a waterproofing film, wood putty, adhesive primer, concrete impregnation, and special parquet varnish.

Choosing adhesive for parquet

Parquet boards are laid on a concrete screed using special adhesives that differ in technical characteristics and composition:

1. Dispersion glue. Environmentally safe, no aggressive chemical compounds or odor. Contains water, so it is recommended to use it for laying parquet made of moisture-resistant wood (larch or oak). This glue is not suitable for beech, maple, and ash wood. It takes quite a long time to dry.
2. Synthetic glue. It contains synthetic resins and rubber. It is durable, elastic and reliable, recommended as an adhesive for parquet. The glue hardens in about 15 minutes. As in the first option, adhesion rates are not high, which is why increased demands are placed on the primer and screed.
3. Two-component adhesive. It is highly expensive and can be used for any coating. Before use, the hardener must be mixed with the adhesive. In liquid form, it releases harmful chemical compounds. Therefore, it is extremely important to work within the means personal protection respiratory organs. After hardening, the glue is converted into a hard, inelastic material, which is why its scope of application is somewhat narrowed.
4. Polymer glue. This adhesive has average effectiveness and hardens under the influence of moisture in the air. It contains MS polymers and has a sound insulation effect. Disadvantages include a long drying period and a strong unpleasant odor.
5. One-component polyurethane adhesive. After hardening, it remains elastic. This glue can be used for both parquet and plywood. It does not allow moisture to pass through and prevents the possibility of swelling of the lamellas. Has high adhesion to many building materials, dries quickly, it can be used with any type of wood, regardless of how it reacts to high humidity.

Important: When choosing glue Special attention pay attention to these specifications, such as minimal shrinkage, elasticity, long term operation, minimal amount of water.

Step-by-step technology for installing parquet on a finished screed

Before starting work, it is necessary to clean the room and clear it of household waste. The floor should not be stained with oil or paint coatings. You should prepare all the necessary tools, materials, and study the technology of laying parquet boards on a screed.

Preparing the base

A concrete surface is almost never perfectly flat, dry and hard. In order to level it, experts use several methods:

1. Screed using cement-sand mortar. It allows you to perfectly level out all differences, damage and defects. But after applying it, it is necessary to interrupt everything for at least 28 days. engineering works. Then the top layer of the screed is removed using a scraper or grinder and primed with a reinforcing compound. The humidity of the base should not exceed 6%. If you decide to install a “warm floor” system or simply insulate it, then all work related to this must be carried out at this stage.
2. Leveling mixture This is a rough self-leveling floor on a gypsum or cement-gypsum base. The coating layer is usually 1-5 cm. It is recommended to dry it for about two weeks, everything will depend on the composition. Permissible humidity should not exceed 1.5%.
3. Sandblasting, polishing. This method of leveling the surface is considered the fastest, but before starting it, it is necessary to cover all cracks with quick-drying putty or fill the hollow pits with cement-sand mortar.

Lay on the prepared base waterproofing film. The strips should be laid on the parquet board with an overlap of 15-20 cm, and the edges should be secured with tape. Under the parquet there should be no underlays used under laminate or parquet boards. In modern markets you can find a self-adhesive rubber cord and install it around the entire perimeter of the room. It serves as an excellent replacement for restrictive wedges when laying.

Laying flooring material

Before laying parquet boards on a concrete floor, it is recommended to comply with certain conditions. The air temperature should not go beyond 18-25°C, and the humidity in the room should not exceed 45-60%. Bring the parquet planks into the room a few days before installation. This way the material acclimatizes faster. Like a regular floor board, parquet is laid along the light streams emanating from the window.

If the parquet is mounted on steel brackets, it is necessary to back side Drive in fasteners for each plank so that half the length of the bracket remains free. The distance between the staples should be about 15-40 cm. Lay the planks in a row, not forgetting to coat the ends with PVA glue. When installing the second row according to the technology, make sure that the free edge of the bracket fits into the adjacent plank, thereby forming a strong connection with the previous one. All other parquet flooring must be fastened together in a similar way. There is no need to fix the last row with staples; it should be glued to the penultimate one.

When installing stretched parquet, each plank must be drilled. The holes should be less than one centimeter in diameter. You must start installing the planks from the central row. The rest of the canvas will come from it. When joining tiles, insert the tenon into the groove offset by ¼ or ½ of the length. Make sure that the holes in the body of the parquet flooring match. Cut off the protruding parts.

After the floor is assembled, it is necessary to stretch fastening plastic elastic cords from wall to wall. With their help, it will be possible to easily compensate for changes in the floor covering that occur due to climatic conditions. One side of the string is secured with a plug. The other end of the cord is stretched and also secured with a plug.