The device is a floating floor: technology description and features

In this article, you will learn how to do floors in floating technology. We describe the principle of formation of the “pie” of this design, as well as of the functional purpose of each layer. The article provides options for different areas and the approximate market prices for the material.

What is a floating floor

Floating floors are a system of cable ties, insulating materials and floor coverings, arranged independently of the walls and floor. That is, on the basis they rely, to the walls adjacent to but not adhered to them rigidly. This is achieved through multilayer technology, which can include layers of different purpose waterproofing preparation, leveling, insulation, engineering and finishing.

The combination of materials in the “pie” is taken for each object separately. There are two fundamentally different variant of the device of a floating floor is “wet” and “dry”. In the first case used cement and plaster (extremely rare) solutions, in the second case — only dry styling. Next, we consider all possible combinations that meet the technology.
The purpose of the layers of a floating floor

Consider a section of the “pie” given most of the options of the material.

The base of the floating floor

Can be anything — concrete slab, slab, soil, old solid flooring (e.g. tiles). The only requirement for the base — it should be dry and have no water source (e.g. a flooded basement). A floating floor allows you to make the finish even if the movable base layers, especially sand bedding, compensate for the movement. This is true for ground foundations subject to deformation or heaving of floor slabs and prefabricated houses.

Waterproofing the floor

Mandatory layer for any reason. Cuts off the moisture contained in the soil or in a concrete slab, and does not allow to hydrate the subsequent layers. Can be rolled dry or surfaced, spraying, gluing, coating. Hydro fit obligatory even old coatings. For example, when the renewal of the tile laminate. This is because stone material better retains moisture, and after drying of the air will give it to the laminate. To protect the new coating enough layer of polyethylene.

A preparatory layer

Is a layer of sand, which corrects the defects of the base. This unexpectedly simple way the most relevant documents for foundations because it provides an effective filling of the depressions. Of course, you can apply and cement-sand screed, but sand bedding allows you to get the same result without the additional costs of cement, labor and time. Before use, the sand must be dried.
Levelling layer

Any hard plate — particleboard, cbpb, OSB, magnesite, fibrolitovye, a special slab of drywall. One of the options “cake” involves laying the tiles directly on training out of the sand. Then it is possible to lay laminate, parquet and any other dry cladding. This option is popular in areas with minimum requirements — verandas, balconies, corridors.
Insulation and sound insulation

The purpose of this layer is clear from the title. A very popular combo option — teplogidroizolyatsiya in slabs of extruded polystyrene, sandwich polyurethane plates or other similar modern materials. Usually they have termoshok — plate edge, cut in a special way. Another option — extruded rigid and semi-rigid plate of mineral wool. All the plates are laid directly on the sand.

As samovyrazitsya can be applied to special materials, for example granular mixture based on soft balls of type “Camoplast”. This is a great option for uneven grounds, because the working layer of 30 mm smoothes out any irregularities.
The engineering layer

It is a system of floor heating — water or electric. It is not a separate or independent is a system of pipes or wires included in the cement-sand screed. To the engineering layer also applies a foil reflector, which is usually satisfied under the heat exchanger.

The final levelling layer

In fact, a preparatory tie for the exterior cladding. In all cases, you sand-cement, gypsum cement gypsum solution (with additives) or concrete. Often done in several stages: coating engineering layer (roughing screed), the leveling (screed finish), the finish lapping plane (leveling). In the first stage usually lay reinforcing mesh.
The finishing layer

Decorative floor covering — tile, linoleum, boxed items, etc. Includes a substrate.


The highlight of the technology that makes floating floor floating. This is a vertical layer of soft material, arranged around the perimeter of the walls at the junction of them with the floor. Or just lining Packed between the walls and the “pie” of sex, which creates a gap (dry laying). The main condition is that the damper needs to guarantee the independence of the floor from the walls around the perimeter.

The material use special tape or cloth type “Izolon” 500/300, but you can use regular plate mineral wool or foam stamps 15.
Variants of the device floating flooring for different rooms

There are several standard methods to device this system suitable in different occasions. We will consider them in layers, given the cost of each layer (except the finishing and engineering).

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