In life, one of the sources of constant stress is various noise. Therefore, in the walls of my home I really want to stay in silence. To reduce the noise, soundproofing of the floor, ceiling, walls is used. Next, we will figure out how to protect yourself from extraneous sounds. 
General information
To people living in an apartment building, through the interfloor overlap comes 2 types of sounds - air and percussion. The former should be understood as noise propagating through the air. For example, TV sound or music. Impact appears from a direct mechanical effect on the overlap. It arises from heels, running children, heard when moving furniture. From the ceiling, the noise spreads to the surface of the walls and is transmitted to the room below. In addition, the sound is often disturbed not only from above. In this case, a properly arranged soundproofing of the floor in the apartment will relieve constant irritation and stress.
Properties of protective materials
First of all, it should be said that many finishing and building materials that are used in the construction of building envelopes have soundproofing qualities . Moreover, the very construction of the building itself implies a certain level of protection against noise. For example, floor screed. Sound insulation, however, is not sufficient in this case. In this connection it is necessary to use additional materials. To begin to protect the home from the penetration of extraneous sounds should be closing up various cracks, holes, cracks. Further, in many cases, thickening of the flooring is carried out. It should not be overdone with thickness. First, the area will be lost. And secondly, such sound insulation of the floor in the house will make the whole construction of the building heavier. This, in turn, can lead to the destruction of the foundation. Therefore, many experts recommend combining soft and hard materials. Solid products should include, for example, drywall, fiberboard, gypsum fiber. They protect against noise. Soft materials include stone or mineral wool. It perfectly dampens sound waves. With a skillful combination of different materials, you can create a quiet and comfortable atmosphere in the room. 
Most popular products
- TEKSOUND is a heavy soundproofing membrane. It is made on the basis of aragonite (mineral). Material is produced in the form of a film, the thickness of which is 3.7 mm. The product has excellent sound-absorbing properties.
- Softboard ISOPLAAT is a fiberboard. It is allowed to mount the material under a concrete screed. Sheet thickness - 25 mm.
- ISOPLAAT is an underground slab made of shredded coniferous wood. The sheet has a thickness of 5 or 7 millimeters. With the help of such plates, soundproofing of the floor under the laminate, parquet is created.
- "Shumanet" is a rolled material. The product is characterized by elasticity and high soundproof performance. The coating has a thickness of 3 mm and provides protection against impact noise.
- "Vibrostek-V300" is also available in rolls. Its thickness is 4 mm. The product is used with a floating screed device .
- "Shumostop" is available in the form of plates. This resilient material has a thickness of up to 20 mm. It is also used in the construction of a floating floor. Plates perfectly protect against impact noise.
- ISOVER is a fiberglass based material. Its thickness is from 50 to 100 mm. The product is used in the arrangement of the "log floor".
Very popular is ISOVER. He has proven himself in various conditions. 
Installation of material: technology choice
Soundproofing the floor can be carried out in various ways. The choice of a particular technology will depend on the state of the substrate and the type of protective material. According to experts, the most optimal option would be a floating floor device. Pre base is leveled. For this, a screed is used (i.e., the surface is poured with cement-sand mortar). Vibro-decoupling materials are laid on top. These include, in particular, mineral wool, foamed polymer coatings.
Stages of the work
Soundproofing the floor, as mentioned above, begins with closing up the cracks. As a rule, polyurethane foam or putty is used for this. Further, the material is laid on a prepared, clean and dry base. In this case, it is necessary to carefully glue the joints. This is especially important when soundproofing a wooden floor using mineral wool. If gaps remain, then steam from the lower rooms will leak through them. This, in turn, will lead to rotting of the material and deterioration of its qualities. After that, the material is installed vertically along the perimeter of the walls at the junction with the floor. It needs to be laid a little higher than the screed (subsequently the excess is cut off). To prevent the entry of cement milk onto the material, a plastic film is preliminarily laid. It will provide the necessary protection against moisture. Next, beacons are installed and the solution is poured. As a rule, a mixture of cement and sand is used for screed in a ratio of 1: 3. The solution must be allowed to dry. At the end, the finish coating is laid. Gaps must be left near the walls. They will then hide under the baseboard. 
Floating Benefits
- Through the use of the technology described above, a very good sound insulation of the floor is ensured.
- During operation, mechanical fasteners that are capable of transmitting noise are not used.
- Floating floor devices do not require special equipment. And the installation itself takes a fairly short period of time.
- On such a coating, a uniform load distribution occurs.
Soundproofing of wooden floors
In this case, a set of measures is used to protect against noise. A floating floor can also be built on the wooden floor. However, the work should be carried out using a slightly different technology. When arranging sound insulation, it is necessary to create conditions in which wooden elements will not form “bridges” of noise transmission. In other words, the structures should not be in contact with each other. To do this, soundproofing material must be laid between the beams and lags of the floor. It should fill all the free space. On top of the lag lay another material. It can be cork roll coating or foamed polyethylene. 
Synthetic felt provides very effective noise protection. But its cost is quite high. OSB boards are laid on top of all insulation. To fix them, self-tapping screws or screws are applied to the lags. During installation, it is necessary to ensure that there is a gap between the flooring and the walls. For this, a damper tape or other materials that also have soundproofing properties should be laid around the perimeter. Subsequently, these areas will be covered with skirting boards. Finish is laid on the floor. The laminate is very popular today. Although it is quite possible to use other materials.
Finally
The floating floor system provides the most effective protection against the penetration of various kinds of sounds. The undoubted advantages of this coating include the absence of the need to use heavy elements and materials.