DIY laminate laying

In recent years, a serious struggle for the minds and hearts of consumers has unfolded in the Russian construction market. We are talking about those who started large -scale repair or “cosmetic” finishing work in their housing, and for this purpose acquires wooden flooring (parquet, parquet board, laminate, etc.)
Everyone knows that these finishing coatings require laying on a hard, even base, with a difference not exceeding 2 mm per 2 linear meters, and their flooring on a base with high humidity is unacceptable.
In the case of manufacturing the base of the floor of wet materials (“concrete screed”, which appeared on the market recently “half-dry screed”, etc.) The result requires thorough drying-at least 30-40 days, depending on the thickness of the base. Failure to comply with the requirements for the permissible moisture of the base of the floor leads to the appearance of mold on a wooden flooring and its rapid failure. Failure to comply with building standards associated with the stiffness or evenness of the base leads to the appearance of creaks, cracks and the subsequent indifference of such a flooring.
The foregoing tasks earlier, from the mid-90s of the last century to recently, decided three sex systems competing among themselves.
Depending on the purpose of the room,:
Concrete multilayer alignment
Adjustable structures
Or a dry screed "KNAUFF".
An attempt to reduce these three technologies led to deviations from existing building codes and rules. As a result, the mass distribution of low -quality products in the Russian construction market that do not meet the requirements of modern flooring materials to prepare the base.
Sellers of this, frankly, consumer goods are disordered by the fact of reducing the service of the finishing coating, in the case of an incorrectly prepared base. Consequently, we increase the amount of investments in the arrangement of the floor, and the result “laid and forgot” can really be forgotten - the costs of such “repair” will grow exponentially.
How to spoil with your "improvement" high -quality concrete multilayer floor
Experienced builders know:
In concrete multilayer alignment is used:
technology of rough alignment of concrete screed;
technology of more accurate alignment - leveling screed;
Group leveling of the flooring of a plywood sheet 12 mm thick.
The struggle of the floors. Divorce in Russian.
Each of these layers (with a floor thickness of not more than 3-5 cm) together with work and materials will cost the consumer from 600 rubles per 1m2. For parquet coatings, the use of all three layers is required (the parquet is glued to the base); For a parquet board or laminate (covered with a floating way, with fixation around the perimeter and without fastening to the base), two layers are enough, however, to the detriment of the comfort of the floor (loss of sound and heat-insulation, the lack of protection of the finishing coating from the moisture difference).
Thus, the cost of a multi-layer concrete base depending on the quality is 1200-1800 rubles per m2. And this is not the limit!
When lifting a given floor level per size of more than 5-7 cm, this method becomes even less profitable, since its price increases significantly.
Also, keep in mind that the use of such a weighted structure is not always possible due to the growth of additional loads on the floor slab; And the screed, using wet processes, requires drying from 30 days, which is not always informed to the consumer. Nevertheless, despite the difficulty of making the foundation in this way, with mandatory observance of all of the above requirements, a parquet or laminate coating on such a floor will last for many years.
The struggle of the floors. Divorce in Russian.
The so-called “know-how” “screed in a day” proposed in the last few years in the market is a simple client’s inflation, who wants “faster and cheaper”. Such a screed is made of a small fraction of sand and cement with polymer additives, which gives the concrete mass the appearance of a dense cottage cheese until it dries. The “cottage cheese” is distributed using a special pump, and then smoothed manually. The cost is 650 rubles per m2, cheap and angrily, everyone is happy. At first sight. Misleads the consumer and the name of this method - the method of semi -dry screed. But manufacturers are silent about the need to further level this innovation in order to achieve the required difference required by the standards (a maximum of 2 mm per 2 linear meters), and the mandatory removal of moisture.
The result is no 1200 rubles per m2. Cheaper? And the same 30-40 days of stretching moisture from the screed, in front of the flooring of the finishing coating.
How to spoil with your "improvement" high -quality adjustable gender
The struggle of the floors. Divorce in Russian.
A modern alternative to concrete multilayer leveling is the floor using adjustable structures.
Two types of DNT adjustable floor - floor along adjustable lags and floor on adjustable slabs - are designed to align the floor with different initial quality.
Options are distinguished by the thickness of the adjustable screed-3-5 cm (adjustable plates), 5-12 cm or 10-17 cm or more (adjustable lags). Both of these designs with a floor lifting height (the thickness of the adjustable screed) 5-12 mm cost an average of 1200 rubles per m2, which corresponds to the cost of the base made by the method of multi-layer concrete screed in the economy version (2 layers, without plywood). With an increase in this parameter, the price, unlike the previous method, changes slightly. At the same time, plastic tilt bolts and bushings (from a polymer of special strength) interacting directly with wood (plywood or lag) are used as fixing adjusting elements. A mandatory element of the adjustable floor is plywood or DNT plate, on which the finishing coating is laid.
Attempts to “improve” the technology of adjustable floors of DNT used in the Russian market for more than 20 years have led to a change in the type of fasteners and materials from which they are made. On the Russian market there are 2 main options for "pseudo-rationalization." In one case, furniture metal hairpins are injected directly into the thread of wooden lag, and in the second they are inserted into its holes and are tightened on two sides with nuts with washers.
Advertising themselves in the regulated sex market, manufacturers of the indicated “improved” structures at a comparable price with adjustable DNT floors (1200 rubles per m2), say supposedly increased reliability of the floor design, precisely due to the use of metal studs instead of a polymer.
Fundamentals of materials science in relation to adjustable floors
These statements are not substantiated and contradict the laws of materials science. Let's look at the loads for materials more carefully.
The struggle of the floors. Divorce in Russian.
In the first version of the “know-how”, the thread in the soft tree under the dynamic load is quickly cut off with hard metal, which leads to the appearance of the backlash and the rapid loosening of the structure. In the traditional case of patented DNT technology, the plastic bolt has approximately the same characteristics in stiffness with wood and interacts with it, without violating the integrity of the connection for at least 50 years (official tests of the Mosstroy and Academy of Subtle Chemical Technologies).
The struggle of the floors. Divorce in Russian.
In the second version of the “pseudo technology”, the wood from which the lag is made, drys out of the temperature and humidity drops, which requires constant dismantling of the floor and twisting the nuts on the stiletto. If this is neglected, then a gap appears between the nuts and the tree, and the backlash of the structure arises as a whole. Now imagine how easy it is to constantly dismantle and again lay the parquet, which is attached directly to the base?!
I also want to note the adjustment of the lag using corners attached to the floor. The lag aligned along the horizon is fastened from the sides with a corner of self -tapping screws. The unreliability of this design is obvious - with constant dynamic loads on the lag, part of the load is redistributed to mounts in the form of self -tapping screws screwed into the sidewalls of the lag, at an angle of 90 degrees, which leads to their bend and loss of strength of the entire floor structure.
Dry screed Knauuff
Another type of alignment of the base of the floor, also comparable in price with floors made of multi -layer concrete screed (economy version) and an adjustable floor, is a dry CNAUF screed (1250 rubles per m2).
The small faction of expanded clay is poured in the room on the base, and is aligned by smoothing it on the surface and mandatory tamping, followed by the flooring of GVP sheets with their attachment by the junction of the junction.
The struggle of the floors. Divorce in Russian.
With a faction thickness of not more than 3-5 cm, a well-compacted fraction does not sit from constant dynamic loads. But in order to achieve the required density of the screed when tamping it, it is necessary to repeatedly water this fraction with water and use special tamping machines. Of course, in this case, the indicated screed cannot be called dry, since the moisture accumulated during tamping requires its removal, before the flooring of the finishing layer of the floor. That is, we are dealing with a wet screed again, although “dry” is written on the package.
It is important to know that with a floor height of more than 5 cm, the use of this method of alignment for wooden flooring is not at all acceptable! In places of constant loads on the bulk mixture of such a thickness, it begins to sag, which makes a parquet or laminate into the worthlessness, covered on top.
conclusions
If you do not remain in the illusions of the sweet stories “Sharash Montazh” about the builders about remarkable leveling and preparing the base of one square meter of floor for 650 rubles for parquet, parquet board or laminate, then, whatever one may say, to make a durable and reliable floor according to all the rules and standards In construction is cheaper than for 1200 rubles per m2, it will not turn out to be any of the above methods. You can use the online calculator and first estimate the cost of preparing the base for the floor.
The struggle of the floors. Divorce in Russian.
At the same time, the same competitive advantages between concrete multilayer alignment, aligning the adjustable floor DNT or dry screed “KNAUFF” are the same with a thickness thickness of up to 5 cm. The difference is very significant, that during installation of the adjustable floor, wet processes are not used. This significantly saves time. In addition, the design based on the adjustable sex has increased heat and sound-insulation properties, unlike its competitors.
But if it is necessary to raise the floor to a height of more than 5 cm, adjustable DNT floors have a serious competitive advantage in terms of price-quality ratio in comparison with other methods of high-quality leveling of the floor for wooden flooring. In this case, the use of adjustable lag technology is most appropriate.
And, of course, none of the previously used technologies will give such an ease of installation of communications and various heating systems “warm floor”, like adjustable floors - after all, they have an air gap under the coating. Hofro channels of communications and pipes of water warm floor are conveniently placed in it, and additional heat-insulating mineral slabs can also be laid to achieve maximum insulation of the room from noise and cold.
So we advise, planning to repair and replace the floor, not to succumb to the sweet speeches of sellers, but carefully study the proposals, compare and make the right choice!