How to lay a laminate substrate

Even the most expensive screed, made in all the rules, has irregularities that reduce the life of the laminated coating. Smooth boards begin to deform, the locks are overloaded and breaking, noise from steps is strengthened, and the condensate loss promises the reproduction of microorganisms. To prevent undesirable consequences, under the dice should be placed special material. Let's discuss how to lay a substrate for laminate.

The substrate for laminated floor is able to cope with such problems:

The material drowshes the sounds of steps and noise that comes from adjacent rooms.
When using the substrate, the thermal insulation of the floor increases, compared to laminate laminate laminated on bare concrete.
When walking, the laminated coating does not creak.
The service life of the surface increases due to the built-in moisture-resistant membrane.
It is possible to achieve perfectly smooth floor.

But at the same time, the qualitative preparation of the base in the form of a flat screed is not canceled.

To the attention of the consumer today several types of substrates under laminated coating are presented:

Cork. It is realized in the stoves, but you can also find a rolled backing of the plug. It is an environmentally friendly material, a good insulation, absorbs the noise, does not represent interest for insects and microorganisms, as it is impregnated with a special antiseptic, retains the original shape, not as follows. In addition, the material is capable of sliding, and this in turn quizens all the consequences of the expansion of wood in the process of its operation. Therefore, it is not surprising that its price is high.
Bitumen-cork. It is a special paper that is impregnated with bitumen and sprinkled with a crumb of cork. Performs all the tasks that are assigned to the substrate under the laminate. Since the material is expensive, it is advisable to use it for expensive and wear-resistant species of laminated coating. However, there is one disadvantage at bitumen: it highlights harmful substances, albeit in small quantities.
Polystyrene foam. Material from the category "Price / Quality" category. It has good technical characteristics and is inexpensive. At the same time, be prepared that he is able to burn well with the release of harmful smoke.
Polyeneetylene. It is very popular in mind its low cost, good moisture resistance, ease of installation. But cheap polyethylene is not deprived of the flaws: its form in the process of operation is lost, which quickly causes the laminate.

After buying a substrate, we turn to the preparatory work:

Remove the old flooring to find out the status of a concrete base. In the presence of irregularities, the floor should be aligned using a self-sprinkled mixture.
To determine the readiness of the screed to further work, put a piece of polyethylene film on it and appreciate its condition the next morning. When forming from the bottom, water droplets should be postponed, as the concrete is not enough.
Clean the surface from garbage and dust thoroughly, supplementing it.
On top spread vapor insulation material. To do this, use a polyethylene film. When laying, do not forget to make the wall on the wall, which is 2-3 cm. Put the stripes also with the allen, at 15-25 cm, fixing the joints using the building tape.
Glue the perimeter of the room by damping tape to compensate for the expansion of the tree, and you can start laying the substrate under the laminate.

Mounting the substrate starts with cutting material on the strip. Place them on the surface of the film so that it concerns the walls of the jack. There is no need between the lanes in this case. If you have a material with a corrugated side, then you should remember that its smooth side should be addressed. When laying a substrate in the form of plates, adhere to chess order, connecting everything with the same scotch.

Thus, after laying the substrate, you can start the installation of a laminated coating, which you can learn more from our article " How to bed laminate».