Floating floor - the most effective technology for soundproofing intermediate floors
Soundproofing interfloor ceilings is an important issue when building a house. It happens that he appears after moving into the house. Rather, there is discomfort from the sounds from the second floor. And in most cases, the owners of houses with wooden floors have complaints about the sound insulation of floors.
How can you most effectively soundproof the floors so as not to experience discomfort? First, let's look at wooden floors.
The first thing that comes to mind is to lay insulation (mineral wool or mineral slab) between the beams in the ceilings:
This will help, but only from the acoustic noise that occurs in the air and is transmitted by the air. From impact noise, this will help little. Impact noise is transmitted along the beams when walking. Or along the walls from the floor. But there is a way out - "floating floor" soundproofing technology. This is the maximum level of sound insulation against impact and acoustic noise. The technology has been known for a long time, but not everyone knows about it.
Schematically, the "cake" of such sound insulation in a wooden floor can be depicted as follows:
1. Dry screed panels (gypsum fiber sheet) or plywood. 2. Mineral slab 5 cm. 3. Membrane or waterproofing film (not necessary for dry rooms). 4. Sub-floor (board or plywood). 6. Floor beams. 7. Lathing or metal profile. 8. Plasterboard or false ceiling.
There are derivative versions of such a system, they can be viewed at the link: https://eco-mix.su/uteplenie_i_zvukoizolyaciya_derevznnyh_polov_i_perekryiti
How does it all look in photographs and what is the cost?
In this photo, it is better to exclude the USB sheets above the minelite - they are superfluous. Apparently, they were used to make the floor more rigid so that the surface does not "float". But this is excluded when using a min-plate of sufficient density and GVL 20 mm thick.
Soundproofing system of floors using linoleum or laminate: mineral board + plywood.
About materials. Rockwool Roof Butts, 40 mm, is ideal as a mine plate. Density - 190 kg / m3. There is a series of Optima (less dense) and Extra. Prices:
GVL (gypsum fiber sheets) will be an ideal rough material above the minelite. There is a format: 1200x600x20 mm with a lock. Sheets are moisture resistant. They look like this:
Yes, it is imperative to lay penofol or the same 7 cm high sections of the min-plate along the perimeter of the room (room). So that percussive sounds from the floor are not transmitted to the walls and vice versa.
Cost of GVL-sheets:
The process of installing sound insulation using this technology is shown in detail in the video:
GVL in locks is fixed with PVA glue and self-tapping screws. If you lay linoleum, then the seams and places where the screws were screwed must be sealed with wood putty. Otherwise, the linoleum will be pressed through and all the seams between the sheets will be visible under certain lighting conditions.
By the way, ready-made modules for soundproofing floors are on sale:
ZIPS-system (soundproof panel system). For maximum sound insulation under the min-plate, stands are used, which create an additional layer of air. The sound insulating effect is even higher. The panels are sold immediately with a set of fasteners. Cost - from 1200 rubles / m2
The finishing coating can be any floor covering of your choice. Except for porcelain stoneware. For him, it is necessary to make a concrete screed on top of the miniplate. A film is laid under the screed so that the concrete does not penetrate the sound insulation and does not reduce its properties.
The same technology can be applied to concrete floors and floor slabs, including urban apartments. Who installed such soundproofing - share your experience and results. Often, such reviews are more important for many readers than the entire article.
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Photo taken from open sources, from Yandex. Pictures
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