Repair floor

Effective ways to soundproof the floor in the apartment: create a barrier to sound negative

Effective ways to soundproof the floor in the apartment

In any apartment building even if itBuilt with the latest technologies, design elements floor, coming into contact with floors, walls, water and heating pipes, become agents of sounds and noises of steps, move furniture, falling objects. Any room apartment, whether it's a bedroom, children's, home theater, living room or kitchen, should be kept private for the owners and not to create discomfort to neighbors and reliable insulation in the floor it is one of the main conditions of comfort. To this end, among all structural elements of the house and the floor lay a layer of sound-absorbing material that dampens noise and prevent their spread.


  • Materials for floor insulation
  • floor soundproofing methods
    • Floating concrete coatings
    • Dry screed - sound insulation floor
    • Prefabricated floors - noise reduction option

Materials for floor insulation

The construction market offers a variety ofnatural and synthetic materials that give good sound insulation floor and improves the acoustic characteristics of the room. Additional sound-absorbing materials based on natural fibers are the most popular:

  • kaolin and basalt wool;
  • stone wool based on a variety of rocks;
  • fireclay;
  • expanded perlite;
  • foamed glass.
Mineral wool

Mineral wool - one of the most popular insulation material to prevent penetration of not only sound, but also the heat waves

Also excellent sound insulation properties, all kinds of mineral wool building endowed and other important properties in the building:

  • fire;
  • vapor permeability;
  • hydrophobicity;
  • environmental Safety;
  • durability.

A disadvantage of mineral wool thickness isplates of 25 mm from it, and so in cases where roads every centimeter of height of the room, or for other technical reasons, a good floor insulation in an apartment provided with such roll of synthetic materials, such as:

  • penopoliestr;
  • polyurethane;
  • EPP;
  • foam.
Polyurethane foam

Created polyurethane foam materials is excellent to prevent the passage of sound negatives due to the presence in the structure of a large number of air-filled "bubbles"

The structure is sound-absorbing materials are:

  • porous;
  • perforated;
  • membrane.

By porous group includes the most popularfoamed glass, concrete, fiberboard, all kinds of construction wool. Floor construction for sound insulation materials must be selected with a porosity of 80% and a pore diameter of not more than 1 mm.

Membrane soundproofing material

Membrane soundproofing material creates a solid dense barrier to the passage of sound waves, the energy of which is spent on overcoming this obstacle

By membrane include materials in whichreduction in sound intensity is achieved due to the energy required to overcome the forced oscillations. This plywood sheets, thick thick cardboard, sound-proof fabric.

The perforated materials prevent the spread of the sound-filled cavities and holes with air. These are sheets of perforated gypsum, asbestos and so on. D.

floor soundproofing methods

The most modern, efficient, environmentally friendly and easy-to-use way to reduce noise in apartments and private homes is the construction of "floating floor".


The system of "floating floor" - the most effective way of sound insulation

It got its name because the floorThis type of construction consists of several layers and no element of it is not in contact with the surfaces flush intermediate floor and walls, and therefore do not apply to them and do not take from them the sound waves. There are three types of "floating floor":

  • floating concrete cover;
  • floating dry screed;
  • prefabricated floating flooring.

Floating concrete coatings

This method is ideal for cases where,except sound-absorbing properties that require high strength and high thermal insulation properties of the base and the high thermal conductivity of the finish flooring, such as the regeneration of "warm floor".

When placing a floating concrete floor, concreteoverlap veiled vlagonepronizaemoy layer thick film, which is placed under the floor insulation screed, often mineral wool. It is important that the layer of soundproofing material laid not only on the concrete slab, but also the space contour, paving walls along an edge strip thereof. Thus, the concrete screed like floats or float independently of the foundation and walls. The width of the edge tape should be greater than the final height of the floor structure, and after the completion of the excess is cut with a sharp knife.

Pouring concrete mixture over the layer of mineral wool and a reinforcing grid

Pouring concrete mixture over the layer of mineral wool and a reinforcing grid

On top of the insulating layer is placed a reinforcing metal net, and put beacons on them poured concrete screed.

Council: Due to the rapid setting concrete mix it is prepared in small portions and immediately pour, but in the same room you must tie in one day. The two or more doses over several days can be filled with a coupler indoor floor height differences, with individual fragments between expansion joints ties leave a minimum width of 10 mm.

If on the surface of the base there is a bias and other flaws, it is equated with a layer of fine sand or expanded clay. To the floor is not subsided over time, up to a maximum tamped filling density.

Finishing the floor covering can be laidOnly after the complete solidification of ties, ie 4-5 weeks. The design of the floating concrete field greatly increases the load on the overlap, the thickness reduces the height of the room, and is therefore not always possible or practical.

Dry screed - sound insulation floor

Dry screed - it is an effective, fast and easyby way of creating a "floating floor" and enhance its noise-reducing properties. Before you make a noise insulation polapo this technology, it is necessary to choose a sound-absorbing material. The highest index of noise level reduction of impacts have mineral wool slabs: at a thickness of 20 mm was quenched with 46.5 dB.

On the concrete base and vapor barrier is laidmineral fiber material, and on top of the filling, hard-packed layer and align it with the beacons. Along the perimeter of the room along the walls fastened skirting tape of the sound insulation material thickness of 20 mm and a height exceeding the thickness of the final floor structure of the future. Surpluses are cut with a sharp knife after use.

Laying gipsovolokonnyh sheets on hard-packed layer of dry backfill

Laying gipsovolokonnyh sheets on hard-packed layer of dry backfill

Backfill is placed over the layer in two layersgipsovolokonnyh plate, making sure that the gap between the wall and the stove was not less than 10 mm. Plates of the second layer stacked with a shift relative to the first, so that their butt joints do not coincide. Gipsovolokonnyh layers glued together with white glue, and then fasten with screws. screw length should match the thickness of the two layers of the coating, so that it did not go beyond it.

This variant of floor construction insulationIt is very popular, because the installation is performed without the use of concrete and "wet" stage, all the elements of "layer cake" involved in sound absorption, and to lay finishing flooring can be immediately after laying the last gipsovolokonnyh sheet. The thickness of the floor structure on a dry screed does not exceed 30-40 mm and almost does not reduce the height of the room.

Prefabricated floors - noise reduction option

For this kind of "floating floor" include laminate flooring, solid wood decking and other similar coating, equipped with a locking system "thorn-groove".

Laying laminate substrate on the sound reduction

Laying laminate substrate on the sound reduction

In carefully prepared perfectly smoothfirst base floor insulation is placed under the laminate or parquet, and then cover it mounted panel with a gap from the wall at least 10 mm. As used soundproofing flexible foam with a closed cell system uniform, polystyrene or cellulose sheets, but they provide minimal sound absorption effect and more play a role of the substrate.

The substrate made of cork - effective insulation under laminate and parquet

The substrate made of cork - effective insulation under laminate and parquet

To enhance noise insulation characteristicslaminated or wooden floating floor in the polymer layer is placed a cork backing or special soundproof membrane Teksaund on it lay a layer of plywood, and only then assembled floor finish. The thickness of the sound-insulating layer in such systems is less than 2.5 mm, which does not affect the height of the room.

Important: Regardless of the method of sound insulation floor structure, plinths be fastened only to one surface of either the wall or the floor, or after putting it in a gap between it and the wall or cork rubber pad. Nails at the same time is not recommended, as the metal is also a conductor of sound.

We hope you have verified that the floor insulationtheir own hands - a task feasible for everyone who has the basic skills of construction work. You just need to be patient and to choose the optimal method and the corresponding sound-absorbing material, and completing the work, enjoy the peace and quiet in the apartment.

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