Materials for insulation

What are the different insulating materials? The specifications and applications

If the distance from your home is even an ordinary road, you do not need to explain what noise is and how it affects the human nervous system. Even in the best case, it will cause people to constant irritation and increased nervousness. It should be remembered that the noise level is measured in decibels (dB). According to the sanitary norms, at night, this figure should not exceed 30 dB, and in the daytime - 40 dB.

To achieve this result will help a variety of insulating materials, which are available in a variety of modern industry.

The objective of these materials is the protection of the premises from the penetration of unnecessary noise. Part of the sound is delayed and scattered, and some of it is reflected and goes back into the environment. Acoustic quality of buildings are characterized primarily by the thickness of the walls. The thicker they are, the less likely that the vibration in the air will be able to transfer their energy. The ability to "eliminate noise" is indicated as a sound insulation index which conventional residential buildings should be equal to from 52 to 60 dB. It possesses good ability concrete and bricks, and log normal glulam. Plasterboard is, for example, poorly absorbs sound, but it has a decent reflectivity. By the way, about it. What insulating materials really well able to hold their noise, rather than just reflect it, creating a resonance already inside the premises?

Sound absorption is characterized by the ability to completely neutralize, extinguish the wave vibrations. Compounds which possess such characteristics, granular, fibrous or mesh. As in the previous case, the insulating characteristics of the materials are measured using a parameter named as easy to guess, the sound absorption coefficient. The spectrum in this magnitude is not too wide: from 0 to 1. If the sound is completely reflected, the value of the indicator is equal to «09raquo ;, if fully absorbed -« 19raquo ;. Quality materials for interior decoration house features a sound-insulating ability of materials to the level of at least 0.4.

Simple sound absorbing materials

The use of absorbent materials are not necessarily available only to professional builders. So, just fiberglass, which can be purchased at almost any store building products can successfully replace professional counterparts. Even the bed on the floor is a thick carpet, you can get rid of the annoying echo. Even in cases where these options are not viable, there are ways to significantly "utihomirit9raquo; the environment: furniture with a thick padding absorbs a lot of noise, as well as the heavy curtains, as well as other kinds of draperies.

Of course, if you can, it is better to provide more effective ways to protect against noise. Acoustic screens with absorbing materials can be purchased for use in those rooms, where loud noises are not permitted in principle (nurseries for infants). Most of these screens was developed by designers and engineers so as to not "perekryvat9raquo; the overall style of the property. In short, this is an excellent sound-insulating material for the walls of the apartment. Unfortunately, finding it can not in every supermarket building, and the cost is not too humane.

Comfortable noise value. Than at higher sound levels?

Scientists have found that the average person is most comfortable at 25 dB. If the value is lower, there is familiar to many "zvenyaschaya9raquo; silence, which causes a feeling of psychological discomfort. Usually in people quietly tolerate the noise level of 60 dB, but with permanent residence in the zone with the value of this index 90 dB comes insomnia, which quickly develops into a neurosis, which can result in severe mental disorders. At 100 dB and above there is a risk of total loss of hearing. To protect against such unfortunate consequences just the same insulating material is used. They are soft, semi-rigid and rigid.

As a rule, they are made on the basis of granulated mineral wool, but there are exceptions. Thus, there are materials, which include natural pumice, "vspenennyy9raquo; perlite, vermiculite. Their absorption coefficient is 0.5. The weight of such material should not exceed 300-400 kg / m 3.

Again, they are made on the basis of the same mineral wool and fiberglass. However, much more commonly used varieties of conventional technical wool felt is very popular also. In these materials, the sound absorption coefficient can vary from 0.7 to 0.95. Of course, they are much lighter than the previous versions: their weight does not exceed 70 kg / m 3.

In this case refers to insulating materials for flat, made of glass or mineral fibers as well as synthetic materials. For example, this is often used as a polyurethane foam. Semi species also have a sufficiently high absorption coefficient, which may vary from 0.5 to 0.75. The weight can reach 130 kg / m 3 but not more than index 80 kg / m 3. Thus, in most cases it is recommended to use soft species that minimum weight have excellent sound absorption.

How to choose the right material for the living quarters?

However, the choice of "pravilnogo9raquo; material much also depends on what kind of sounds interfere stay indoors. Thus, the work of electrical appliances creates a so-called air noise (vacuum cleaners, hair dryers, computers). If we are talking about walking, various construction work and other things, it meant the impact type noise. In our conditions, is also often the situation when the house was built without the use of normal sound insulating materials and assembled on a rigid frame, he turns into one big source of sound pollution. In this case we are talking about the structural noise.

Sound insulation materials with cellular structure (pumice, polystyrene) do an excellent job with shock loads. Air noise is most characteristic of the majority of residential premises, beautifully damped by means of fiber boards or their equivalent. Alas, but with structural disorders can be combated only after an analysis of the basic design elements and the use of special gaskets with good sound qualities.

Please be aware that the basic characteristic for materials that have the ability to absorb airborne noise, is a so-called absorption index (Rw), which is expressed in decibels. Remember not to hear it for household room wall, it is important that the insulating properties of the materials (used in the construction of walls) were equal ratio of not less than 50 dB. We have already talked about the sound absorption coefficient: the closer to one, the better. Living room, this figure should be at least 0.5.

The most reliable way to protect against unwanted noise is to install a dense and massive interior floors. Best in this case proven aerated concrete blocks and concrete with expanded clay inclusions sufficient. It is important that the walls were really a monolithic structure. The presence of any cracks or holes is not allowed. It should be remembered that different insulating materials for walls can be used in one design, provided a solid and monolithic connection therebetween. This is achieved by using high-quality solution. "Kanonichnyy9raquo; Example - the wall of the foam block, separated facing bricks or artificial and / or natural stone.

It is important, however, to take into account the fact that the construction of such structures in the already inhabited building - is extremely difficult and non-trivial. In addition, if the house itself is built of quality materials too, such a measure would reduce the total noise by 10-15 dB, which is not enough for a normal sound insulation.

Much easier and cheaper to make a partition on the basis of a sufficiently strong and rigid structures with different types of insulation. If we make a comparison of the sound-insulating material, in this case, that much of a difference you will not see even with the cork flooring.

In this case, the rigid substrate may be not only the bricks or blocks, but even conventional gypsum board on the basis of timber, which was used for the manufacture of a proper degree of the dried tree. The higher the density, the better the sound insulating ability of the material. Of course, the main role in the arrest of noise will play a layer of soft materials. As we have already said, the most expedient to use fibrous varieties, such as mineral wool or fiber glass in residential areas: they are most effectively absorb air noise.

It should be remembered that in all cases the effective thickness of the partitions must not be less than 50 mm. And further. At least 50% of the total volume of internal partitions necessarily be left on the insulating materials for walls, because otherwise high performance you get will not be able. And now discuss the specific species.

It made of conventional glass. Its main characteristic is the high strength and elasticity and vibration. Many insulating materials for floors are made on the basis of pressed glass. Its characteristics due to the fact that between the fibers has a large number of air layers. There are many positive qualities of glass: it is completely unaffected by even an open flame, has a very light weight, does not absorb moisture and excellent water vapor permeability. Moreover, wool is chemically passive and does not cause corrosion in the metals, which contact. This is very important in this case, as do many insulating materials for walls based on it. When repairing flats with it is only important to remember that getting into tiny particles of glass wool in the respiratory system is highly undesirable, and therefore it is necessary to use a good respirator.

Perhaps, it is known to every builder. It may be made from a melt (silicate) rock and slag, which metallurgical wastes. As in the previous case, the material is not exposed to open flame and does not cause corrosion of metal structures that are in contact. Excellent capacity for sound absorption due to the presence in its structure the vast amount of fiber, which are located in a completely chaotic, interweaving of form.

Do not confuse the mineral wool and fiberglass as well as the characteristics of different fibers. At glasswool its length is not less than 5 cm, while the mineral fiber web this figure does not exceed 1.5 cm. Moreover, the first material (mineral wool) is considerably easier, and its value is somewhat lower. In particularly noisy rooms often have to arrange so-called acoustic ceilings: reflecting its elements will reflect the extra sound, while its soft materials efficiently absorb. Recent placed in a space between "rodnym9raquo; ceiling and an outer layer of an acoustic coating.

Manufacturing of multilayer panels

To simplify the work, ready to take the elements of the system ZIPS. They can be used as an effective sound insulation-layer walls made of hard materials (brick or concrete). Structurally, such panels are very simple, since they consist of sandwich panels and a covering material in the form of gypsum board. Sam "buterbrod9raquo; It includes all of the same drywall, which alternates layers of mineral wool or fiberglass. Important is the fact that under the different rooms, you can choose the special models with different thickness' of existing material. " In particular for this type of doing some insulating materials for doors.

Plus such panels is that they are not having a metal frame, have very small weight and can be fastened to the wall by conventional wood screws of suitable length. Note that between the bearing wall or partition it is advisable to place a special gasket for sound insulation. Unlike previous materials, ZIPS belongs to the category of poorly combustible, which limits the use of panels in the baths and other areas where there is a possibility of contact with an open flame.

Depending on the model, the thickness of such material can reach 13 centimeters. With this indicator sound insulation index is 18 dB. Thus, when attaching ZIPS a typical wall thickness on the dwelling, zvukozaschischennosti degree may reach 63-65 dB. Note: use of such insulating materials to the walls of the repair can be flat only if sufficient strength bearing structures, as the square meter weight ZIPS can reach 21 kg, and even higher.

How to protect against impact noise?

In this case it is necessary to use such structures, which could repel and disperse sound waves, rather than absorb them. For this purpose, suitable porous, elastic materials. The most commonly used option with special pads that are placed on the stage of the finished floor installation.

Unique natural material, is not subject to the action of mold, fire, fungi and rodents. Very inert in chemical terms, is completely safe for all types of metal structures. The service life can exceed 40 years. The most high-quality varieties can reduce the level of impact noise by 12 dB once. Alas, but the cost is often negates all the advantages of the material, as per square meter are asked for five or six dollars. When this course is more expensive. If not for this fact, cork floors can be described as "the best insulating materials."

More "byudzhetnyy9raquo; variant of protection against impact noise. Foamed polyethylene has a density of from 20 to 80 kg / m 3, which causes the possibility of its use almost all types of premises. It has several varieties:

  • Non-crosslinked. Molecules of substances unrelated to each other by chemical bonds. The cheapest variety, can reduce the noise level by three to four decibels.
  • Physically crosslinked. Some of the molecules forms a fairly dense structure. In this way, sound insulation properties of the variety zameno above (to reduce noise by five or six decibels). On the basis of this type are made, some insulating materials for the ceiling.
  • Chemically crosslinked. The molecules have a strong bond with each other. As a result, the material has a performance only slightly inferior to those of the cork lining.

Regardless of the type of polyethylene is good to use when mounting the concrete screed, it placed under the floorboard and laminate. In some cases, it may be used to strengthen the joints. Physically strong, resistant to many chemicals. Flammable and therefore should not be used in those areas where there is an open flame. Under the action of ultraviolet radiation is rapidly losing its protective properties. It is undesirable to lay a substrate in the presences smokers, since strong mechanical loads it quickly wears out. Is moisture, which in some cases creates the preconditions for the development of mold. Despite this, based on it make a lot of sound-insulating materials for floors (lining), as polyethylene is very low cost.

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Pre-arrange with others. It will be very easy to carry your disassembly. When you know what's what - lightly.

Our downstairs neighbor drove Mouzon at night. I began to play in Fly - shooter. Aircraft engine howling and crashing aviapushek morning. That was something. Now Mouzon stopped. And I learned to play the keyboard, when they brought a piano for my daughter. Piano - it UZHOS. But also on the piano, I weaned them. It seems to be. Now learn to play synthesizer stopped. I observe the truce.

Sound-proof materials. Types of sound-insulating materials

Everyone who lives in the house, which is located in close proximity to highways, industrial plants, railways, etc., is well aware that such a noise, and how much it affects the human nervous system. Noise - a phenomenon inharmonious chaos of sounds, combinations of scaring people in the best case irritation. The noise level is defined in decibels (dB). Sanitary standards recommended noise level in the range of 40 dB during the day and 30 dB at night.


soundproofing task - to reflect the sound and not allow it to pass through the wall of the room. The characteristic structure of soundproofing materials creates an obstacle promote sound and reflects it. Soundproofing walls and any other building structure is determined, above all, the mass - the heavier and thicker the wall, the harder sound vibrations to shake her. Sound Insulation ability of enclosing structures used in construction, is estimated as an index of sound insulation. sound insulation index is measured in dB, and optimally it should be between 52 to 60 dB (for walling). For soundproofing are dense materials, such as concrete, brick, drywall and other materials capable of reflecting sound.

The problem of sound absorption - absorb noise, do not let him reflect on the barriers back into the room. Sound-absorbing materials are fibrous, granular or cellular structure. sound absorption characteristic estimated sound absorption coefficient. Sound absorption coefficient varies from 0 to 1. A value of zero sound absorption coefficient is totally reflected at total attenuation coefficient equal to unity. By sound absorbing materials include those that have a sound absorption coefficient of at least 0.4.

It is believed that most people feel relaxed with the noise of 25 dB, and if its value is lower than this value, there is a sensation of ringing silence that brings discomfort. Typically up to 60 dB person reacts to noise tolerant, long-term exposure to noise of 90 dB, a person may come a serious nervous disorder: insomnia, hysteria and other diseases. The sound level of 100 dB and up faces hearing loss.

For protection against noise using different materials, creating an obstacle in his path. The principle of selection of materials for protection from extraneous sounds depends on the task.

Scheme swallowing or sound suppression

According to the degree of rigidity sound-absorbing materials are: hard, soft, semi-rigid.

  • Solid materials.
  • It is based on granular or suspended mineral wool; materials, which include porous aggregates such as pumice, expanded perlite, vermiculite. Sound absorption coefficient: 0.5. Bulk density: 300-400 kg / m3.
  • Soft absorbent material made on the basis of mineral wool or fiberglass; as well as wool, felt, etc. Sound absorption coefficient:. 0.7 to 0.95. Bulk density: 70 kg / m3.
  • Semi-rigid materials - a mineral or glass fiber plates, with cellular structure material - polyurethane, etc. Sound absorption coefficient: from 0.5 to 0.75... Volume weight: from 80 to 130 kg / m3.

In private houses advantageous to use materials having a maximum absorption coefficient and a smaller mass, i.e., soft.

The choice of material to create a sound of indoor comfort also depends on the nature of the sound. Running electrical appliances, TV, receiver, loud noises, sounds of animals, sounds of cars and so on create air noise. If there is an influence directly on the overlap: drilling walls, nailing, walking, the sound from the rearrangement of furniture, etc., then we are talking about shock noise. When the bearing house structure rigidly connected to each other without the use of sound insulating elastic gasket, the noise of any nature home spreading structures and converted into pattern noise.

To combat shock noise used elastic materials generally closed cell structure. A noise coping with air porous or fibrous, with a high sound absorption coefficient. It deals with structural noise by using the cushioning material to protect the joints of bearing elements.

The main characteristic of the materials to protect against airborne noise is sound insulation index (Rw), expressed in dB, in order to avoid human speech could be heard behind the wall, it is necessary that it be at least 50 dB. Another feature - Absorption coefficient: from 0 to 1. The closer the coefficient of absorption to 1, the higher the quality of the protective material.

One way to protect against the ingress of extraneous sounds may be the establishment of dense and massive walls and ceilings. It may be monolithic reinforced concrete, expanded clay and foam concrete blocks, etc. The main thing is that they, together with a binder solution formed a sealed structure without slits and holes. In one possible combination of several bulkhead dense materials in the presence of hard links between all elements of construction: for example, the wall pumice concrete blocks of cement-sand mortar, brick lined. However, increasing the massive walls and floors - the task is rather complicated and inefficient, since the increase in structural mass twice increases the acoustic index for a few decibels.

A better way to protect against airborne noise is the creation of a multilayer structure consisting of several alternating layers of hard, dense and soft building materials.

Scheme multilayer wall structure as an additional protection against noise

As hard dense concrete layer type materials can be used, brick, plasterboard and so on. They exhibit sound insulation properties, and the greater the density, the higher sound insulation. A layer of soft material has sound-absorbing function. As a sound-absorbing layer materials are applied to the fibrous structure of mineral wool, glass wool, silica fiber. When this thickness has a value of sound-absorbing material in the construction starts with the effective thickness of 50mm. The thickness of the absorbent layer should be at least 50% of the internal space of the partition.

Currently, the most effective materials having high values ​​of absorption coefficient, are considered the mineral wool and glass fiber.

This material is based on glass fibers, has high elasticity and strength, and high vibration resistance. Good sound absorption is due to the large number of voids between fibers, which are filled with air. By its positive qualities include: Flameproof - NG (incombustible), light weight, flexibility, non-hygroscopicity, high water vapor permeability, it is chemically passive and does not cause corrosion of metals in contact with it. Glass wool manufactured acoustic baffle in the form of plates and rolls for creating a soft intermediate layer in multilayer sound absorbing structures.

This fibrous material made of silicate rock melts, metallurgical slag, and mixtures thereof.

Positive qualities: fire safety -negoryuch -NG; It is chemically passive and does not cause corrosion of metals in contact with it. Good sound absorption provided by the fact that the fibers are arranged randomly in a horizontal, vertical directions, at different angles to each other.

Note: DLength of the fibers in mineral wool and glass wool different: the average fiber length is 5 cm, and stone fiber length - 1.5 cm In this wool - a lighter material (sm.tabl.vyshe)..

Improve the sound insulation device can overlap acoustic ceiling - sandwich construction, which will reduce the reflected sound energy and absorb noise.

The air space between the floor and the ceiling plane is filled with sound-absorbing materials, which are used for the compacted mineral fiber plate or of fine glass fibers.

Soundproofing recently used ready-made insulating ZIPS system. Constructions ZIPS are an effective means of additional soundproofing partitions monolayer (brick, concrete wall, etc.). ZIPS consists of sandwich panels and finishing of the facing sheets of plasterboard 12.5 mm thick. Sandwich panel consists of a combination of dense (gipsovolokno) layers and light (mineral wool or glass wool) of different thicknesses. Depending on the model and the thickness variation of the material in the layer may vary. The advantages of the design are the lack of a metal frame and wall mounting is done through special units that are made in the process of production of panels. By the side surfaces (floors, walls, ceiling) ends adjacent panel ZIPS system via anti-vibration pads. Fire ZIPS - G1 (nonflammable material).

Scheme sandwich panel

ZIPS thickness depending on the pattern can range from 40 to 130 mm. Increased insulation index depending on the design thickness: 9 to 18 dB. Example: The use of a four panel ZIPS 70 mm total insulation index is increased by 10 dB, i.e. while strengthening ZIPS 70 mm thick wall with insulation index - 47 dB, the total sound insulation index rises up to 57-58 dB, and if the thickness is ZIPS be 133 mm, the total sound insulation index rises up to 63-65 dB.

Note: The condition for the applicability of structures ZIPS is sufficient bearing capacity of the original partitions, as the weight of one panel of 1500x500 mm size ranges from 18.5 to 21 kg depending on the model.

Materials that are used to isolate the shock noise, the sound wave does not absorb and repel, causing her to lose energy. For isolation of impact sound using porous materials with a low value of storage modulus as a sound wave attenuation because the sound energy is consumed for elastic deformation of the material.

One of the variants of protection against impact noise-laying under the "fair sex" gaskets acoustic insulation materials. One of the important characteristics of the comparative materials protecting from impact noise, is Index decrease given the level of noise impact Lnw.

Pressed of natural cork sheet

The material does not rot, impact rodents, vermin and mold. With respect to the active material is inert to chemicals. Durable - up to 40 years or more.

examples: cork "IPOCORK" firm rolls (Portugal). It has a thickness of 2 and 4 mm, dimensions of sheets sold in &159times;610 mm, and rolls. reduction index given level of impact noise - 12 dB. The cost of the roll tube technical 2mm - $ 2 / m2.

Other examples: plate trademark CORKSRIBAS, roll stopper "Cork Roll".

laminates, manufacturers often offer it bundled with their products. In the construction industry mainly used polyethylene foam (foamed polyethylenes) having a density of from 20 to 80 kg / m3.

  • non-crosslinked polyethylene foam, has a molecular structure of an unrelated (polymer molecules not connected to each other by chemical bonds).
  • physically crosslinked polyethylene foam. It has a modified molecular structure, thereby improving sound insulation properties.
  • chemically cross-linked polyethylene foam. The method of chemical cross-linking polyethylene foam strengthens intermolecular bonds and thereby increases the sound insulation properties.

Polyethylene is used in the device interfloor concrete screeds, floating floors (see below.) As a substrate under flooring, laminate flooring and other; in sealing joints. Good contact cement, concrete and others. Materials resistant to most solvents, petrol and oils. Fire safety - T2. Unstable to UV radiation. At long loads to lose 76% of its thickness, impairing the insulating properties over time. If moisture gets into the podparketnoe space, create conditions for the spread of mold. Cost at a thickness of 3 mm. - $ 3 / sqm

Examples of polyethylenes: "Izolon", "Izonel", "Pleneks", "TEPLOFLEX", "Porileks", "Energoflex", "Stizol", "Isocost", "Dzhermafleks", "Steynofon", "Izopenol" and so forth.

It is a mixture of granulated cork and synthetic rubber. Material reduces shock noise character and dampens vibration appliances. It can be used as a textile lining, elastic and rigid floor coverings, PVC / intrinsic viscosity of the coating, linoleum, parquet, finished parquet, tiles, slabs of natural stone, as a gasket for carpet on stretching. Fire safety - B2. Substrates based probkorezinovoy mixture need additional moisture insulation plastic film, when excessive moisture, they can be a breeding ground for mold.

examples: UZIN-RR 188. Thickness - from 3 to 5 mm. Index reducing impact noise level reduced from 18 to 21 dB. Price (3mm) - $ 2 / sq.

Another example: Ibola material (in Germany). This substrate consists of pressed cork and rubber granulate.

Made on the basis of kraft paper impregnated with asphalt with grit cork. It laid down cork grit, and thereby, a laminate of the moisture is removed. Applications do not need waterproofing. Fire safety - G1. Bituminous penetration at stacking stain, cork chips may fly away from the web and the substrate with excessive moisture may rot.

examples: Parkolag material company ICOPAL (Denmark, Finland). Roll weight slightly greater than 10 kg. Thickness - 3 mm. reduction index given level of impact noise - 18 dB. Price - 3.5 US $ / m2.

Composite - multicomponent material. It consists of two layers of plastic film, between which there are beads of expanded polystyrene. Outer film made of polyethylene, secures the floor covering against moisture. Bottom film transmits moisture into the space between the films, from where it is expelled through the perimeter of expansion joints, and thus, the space is ventilated. In the operation of the composite substrate is almost not deformed, it is durable (20 years). Mounting composite substrate is carried out by free laying, without the use of adhesives. Fire safety - NG.

examples: Tuplex company TUPLEX (Finland). This insulating material of new generation, many flooring manufacturers (UPOFLOOR, TARKETT, KARELIA, KAHRS) use it in conjunction with their products. Thickness 3 mm. reduction index given the level of impact noise - 18-20 dB. Price - $ 3 / m2.

Other examples TermoZvukoIzol material; Arrangement "Vibrofiltr" (synthetic rubber and aluminum foil).

The substrates can also be used materials such as extruded polystyrene and special sound-proof film.

extruded polystyrene

The coating has a high compressive strength (0.32 MPa), and low water absorption - 0.1%, and therefore do not need protection from moisture. Easy to use: cutting ease, simplicity and speed of placing a small amount of waste, the cost of work is minimized Durability - 50 years. Fire safety - G1.

As an example Foamboard-5000 from the "FRONT BUILD" (Russia), in sheets of thickness 2, 3, 5 cm reduction index given level of impact noise -. 25 dB. Price (2 cm) -1,1 dol / m2.

Another example: XPS brand FOMBORD; extruded polystyrene boards "TISpleks" (TU 2244-009-55182353-2007).

Applied also cushioning materials type "Shumanet-100." With a thickness of 3 mm under the screed during laying of 60 mm thickness reduction index given level of impact noise - 23 dB. Material "Shumanet -100S" with a thickness of 5 mm has an index of reduction in the reduced impact noise 27 dB. Material "Shumostop - C2" staple fiber with a thickness of 20mm has impact sound reduction index - 42 dB. When laying the walls is recommended to leave gaps 10-15 mm for removing moisture.

Note: If sound insulation is necessary to consider the thickness of the slab. In the elite housing rate indicator index decline reduced impact noise - 55 dB. If the floor slab has a thickness of not less than 200 mm (index - 74 dB), it is sufficient substrate with index index 20 dB. If you overlap more subtle, the sound insulation needs to be strengthened.

Option protection against impact noise: to create a multi-layered structure - floating floor.

The design of the floating floor is a layer of sound-absorbing material, indoor concrete screed thickness of not less than 6 cm; substrate and a topcoat.

meaning impact sound reduction index given level Lnw quite high and thin (3-4 mm) gasket substrate materials. And in order to prevent access of air noise, sound absorbing material layer is required (e.g. mineral wool) is not less than 50 mm thick.

Sound insulation substrate may be made of different materials.

There are also prepared a floating floor structure, they are among the polystyrene sheet layers 20-30 mm, their impact sound reduction index Lnw 20-30 dB level.

Sound insulation of structural noise

To avoid transmitting noise on structural joists apply the cushioning material to protect the joints of the bearing members.

Isolation pattern noise are provided due to the elastic properties of a porous fibrous fabric structure. Gaskets used in building constructions for mounting the panel ZIPS system frame soundproof partitions and facings, as well as wooden floors and ceilings. When installing sandwich panels ZIPS napkin is placed in two layers in places of their support on the floor, as well as the contact points between the panels with the lateral walls and the ceiling. When mounting the frame partitions and cladding gasket is used between the frame profiles, fasteners and bearing structures in the junction obshivnyh sheets or walls facing the other building structures. When the device wooden ceilings and floors is placed under logs and under the joists in the places of their reliance on the wall. The width of the strip of material on each side must be 10 mm larger than the width of the joists or beams. The ends of the beams resting on the wall, must also be insulated from hard contact with other construction elements via spacers.

examples: tape gasket to isolate structure-borne sound reduction index Vibrostek M. given level of impact noise - up to 29 dB. Cost: $ 6 / m2.

Other examples: sound insulating substrate VIBROSTEK-V300 is used as elastic sound-insulating substrate; Fiberglass PSC T-550 used in individual housing. Mats MMP-AC-30/50 from the superfine fiber batting.

Provides high vibration isolation joints between building structures, reduces the spread of structural noise on them. It is used for filling joints in structures floating floors, the panel ZIPS system frame soundproof partitions and facings. The material does not cause corrosion of the metal, has a good adhesion to many construction materials, concrete, bricks, plaster, glass, enamel, metal, ceramics, plastics, painted or varnished wood. Resistant to UV radiations. Frozen sealant is odorless and safe to handle. But while working with him to avoid contact with the sealant in the eyes and skin, and work in a ventilated area.

examples: vibrogermetik shaker designed for sealing joints and connections in the sound-insulating constructions. The cost of the cartridge 300 ml - 5.5 US $ / m2.

Other examples: Sealant Bostic 3070 of cork (Schrot) and an elastic binder; Vibro-acoustic sealant SYLOMER; mastic vibration-absorbing.

Elastomeric materials are designed to reduce noise and vibration transmitted from the different sources on building elements, as well as to protect the premises of the structural noise coming from outside. On the perimeter of the door to the isolation of the structural noise are used seals made of elastomeric material, providing a high level of sound absorption. Laying of a well-kept on the majority of materials on wood, plastic, metal. Term life - up to 7 years. reduction index given level of impact noise - to 22 dB.

Examples: self-adhesive pads with a basis Varnamo (Sweden) of the EPDM foam rubber. Gaskets are manufactured in various lengths packaging: 6, 16 and 24 meter. Cost tape 6 m - 1.8 fraction.

Other examples include elastomeric vibration damping plate (VEP) TU 2534-001-32461352-2002; ArmaSound - elastomeric sound insulator manufactured by Armacell (Germany); SYLOMER® Austrian company Getzner Werkstoffe GmbH - microcellular polyurethane elastomers with a mixed cell structure.

The cushioning material of the silica fiber

Its use in the sound-absorbing and sound-insulating constructions where high demands on fire safety. For products made of silica fibers are good environmental indicators: they do not contain carcinogenic, asbestos and ceramic fibers and fine fibers with a diameter less than 6 microns, are not dangerous to breathe. The material of the silica fiber is used at the junctions of structural elements supporting the building.

examples: Roller silica fiber Supersil 6 mm thick. Reduction index given level Lnw impact noise 27 dB. Cost - 9 dollars / square meter.

Other examples: "shaker-K" (Russia); trademarks Supersil, Supersilika and Silibas (Russia), silica fiber mats of Ekowoo.

It should be noted that not all producers are given to those materials which they produce a sufficient amount of information, so we considered only those brands for which there are data. The accuracy of these data, we also test can not, therefore, - is on the conscience of manufacturers.

It should be noted that the presence in your home the best quality acoustic insulation materials, - does not guarantee sound comfort. It is very important to them to link to the desired design so should invite acoustics professionals who will create for you a comfortable sound atmosphere.

Note: Prices are relevant for 2009.

Amateurishly I am trying to figure out, and I can not figure out what is possible in apartment-field conditions to measure the actual level of noise? So that without calling exit acoustic lab Metropolitan opera? There are some realties sound "avometry"?

And further. About a lot of noise reduction systems and dohodivo written. But that would be to mold the wall shumobarer consciously need to know how the complex will lead themselves then. Where can I find the noise attenuation coefficients for the most common materials, such as concrete, expanded clay lightweight concrete, brick, concrete, wood frame, and so on.?

At first I will answer the second question: where you can learn the most common factors of materials. This data is in the normative literature (in Rossii-SNIP 23-03-2003 "Protection against noise" in Ukraine-SNIP II-12-77 «Noise protection"). Partly they are given in the article above and in "Soundproofing in a private home."

As for how to try on the real level of noise, then there are plenty of options, "sound level meters" - devices that measure the noise level. And, you can do so (very easy way): Take the old Soviet tape spring 212c (in my opinion), there is auto record when the sensor gives a value of the noise level in decibels :-).

take the old Soviet tape spring 212c (in my opinion), there is auto record when the sensor gives a value of the noise level in decibels :-).

Eh. My nostalgia has broken. Spring 212c!

I listened to it on the black coffee))

Can you please tell how to soundproof windows. I put additional windows, but the noise is not reduced. I outer 5 mm, average 4 mm, 3 mm internal. It seems to be in resonance should not be included. Now the fashion for straight-through "glushiteli9quot ;. Well, there is no escape from them. What to do. I'll never know. Life miserable. You correctly wrote about the nervous system. Poustraivalis taxi drivers and wander past the windows during the day and at night. Or sleep or do not allow live.

You see, the fact is that by the windows you are unlikely to do something. It is necessary to seal the joints of glass and frames. See article Soundproofing, principles and Heating, designs that need to be isolated. There are also about the windows, too.

I've been home wall insulation boards laid about 3 years ago, before holodina was, a little penguin is not turned. And when you consider that I live on the first floor next to the railway, so the sound was there, not to sleep, watch the telly it was impossible, even Euro-window did not help. In general, I am tired of this business, I booked online the insulation on the advice of a friend, is now live, I do not know sorrow, quietly but warmly.

Commentary edited by the administrator (advertising).

The article is interesting. That's just not clear the issue with the suppression of impact noise on the roof. For example, from rain on the roof of the attic. With air noise in this case is clear - mineral wool, for example, it is also the insulation. How many did not look at the forum pies options for roofing, I never found a single layer of elastic soundproofing materials. Or such can be considered waterproof?

There is no elastic materials, you are right. Waterproofing (membrane) it can not be treated as such. But the problem is impact noise, actually not. He extinguished a layer of mineral wool roof. The problem would be if it strikes against rain, for example, be heard in construction to the first floor (so impact noise effect). But the same is not present. Therefore, to be honest, no one this aspect (impact sound insulation in the roof) is not engaged. Isolate mineral wool and everything.

Hello! Thanks for the article, but I am not a specialist in the construction business. I moved, made repairs, everything was ok. But when included heating, it turned out that all the heating pipes for the apartments on my floor (there are 5), all converge on the same wall area. Behind this wall - my bedroom (((At night, very noisy, bad sleep Unfortunately, I do not know to what kind of noise it is true Tell me, please, what you can do...?

Hello! Your question - it is a separate building situation, and under the articles we parse only the issues related with the article (that is unclear in the text, incompletely described, and so on). But such a question as yours, according to claim 7 of the Rules shall be specified in section Q & A separate issue. In order to get advice from experts of our portal on the problem, you need to ask a question in accordance with the rules.

Thank you for understanding!

When it comes to Sound insulation materials, it is most important to distinguish between sound insulation and sound absorption. These two concepts are often confused.

Soundproofing sound blocking means at the inlet or outlet of the space, e.g., interlock street noise in the living room.

Sound absorption is designed to improve the sound quality in the room and is important for those who create a home theater or recording studio.

Insulation and special windows can be installed during construction, while the acoustic foam or vinyl can be applied to the existing structure. In any situation, the best materials will not work properly without careful planning.

How to get the greatest effect on the materials for soundproofing?

The greatest effect of the building materials for sound insulation can be obtained when they are integrated into the construction process. As, for example, mineral wool laid in the cavity walls or sound-insulating wall cladding panels of various kinds of polymers subsequently closed by plaster. You can get some benefit from the installation of acoustic elements, and after the completion of construction, but the effect will be less.

However, there are many options to improve the sound insulation of the finished building. Floor insulation is inexpensive and effective way to block sound between floors of a house or other building. For this purpose a basalt or rockwool, placed between floor beams and absorbing part of the sound, or materials such as TermoZvukoIzol, soundproof, Shumanet 100, 100 super Shumanet, Tecsound FT75 to create a sound-proofing layer.

Drywall - one of the best thin acoustic insulation materials.

When used in conjunction with insulation basalt rock wool or gypsum board can truly turn off the sound when they try to enter the space. Recently, a sealant layer (Green Glue or Wolf Flex) is used instead of a basalt or rock wool, which is disposed between two sheets of plasterboard. In such a construction sealant performs the role of shock absorber, Vibration-damping. Another type of shock absorber between the drywall and the wall may be sound-insulating material, such as: Tecsound, K-Fonik ST GK, PhoneStar, EkoZvukoIzol and other materials.

None of this is cheap options that are best planned before the construction phase.

This is only part of the options available to improve the acoustic comfort of your home. But only a comprehensive approach and the use of multiple methods in combination can bring the desired result.

Hello, your question - it is a separate building situation, and under the articles we parse only the issues related with the article (that is unclear in the text, incompletely described, and so on). But such a question as yours, according to claim 7 of the Rules shall be specified in section Q & A separate issue. In order to get advice from experts of our portal on the problem, you need to ask a question in accordance with the rules.

Thank you for understanding!

For iPhones / aypadov or for any smartphone based on Android has a lot of free programs that are fairly accurately show the noise level. I enjoyed some one at work, compared with the noise level readings during certification - an accuracy of +/- 2 dB!

Thanks for the comment. Very useful information for us.

Hello! Help advice, please. Resolved a plasterboard wall thickness of 23 cm between the small rooms leave a large opening (2.5 x 2 m), where necessary to quickly convert them into one large room, for example, in case of a large feast. The curtain off the opening so that the sound does not pass? In both yell TV))). The aperture has a perimeter groove and a depth of 7 cm wide, that the material in them tightly joined. But the material itself can not pick. Stitched mattress double syntepon - the sound is not delayed at all. Can have any sound-reflecting materials? Doors there fit only accordion at such an opening, but they will not help, because does not exist without gaps and require space in the addition. Yes, and I do not feel like there are no doors.

Hello, your question - it is a separate building situation, and under the articles we parse only the issues related with the article (that is unclear in the text, incompletely described, and so on). But such a question as yours, according to claim 7 of the Rules shall be specified in section Q & A separate issue. In order to get advice from experts of our portal on the problem, you need to ask a question in accordance with the rules.

Thank you for understanding!

The flat (brick-solid house) the sound passes through the foam blocks 230 mm thick, and after the concrete monolith 300 mm passes. I get vpdina 70-75 mm. So if I instead of the cavity will be coated with a wall: insulation 50 mm GCR 12.5 in 2 layers, the fall if I have the level of airborne noise? I understand that vibropodvesy, junction with floor and ceiling - this is purely to prevent impact and structural noise. And if I do not care impact and structural noise, the vibrorazvyazki they can not do. Do I understand correctly?

If you have exactly only airborne noise behind the wall, - help. Insulation is needed fiber, such as mineral wool. But look. If your outer wall, and it is made of concrete, it will be internal insulation, and (depending on the region in which you reside) The wall can start zamokat. If the wall of the unit and also outside, it is also to be considered (less chance of becoming soaked, but there).

If you decide to check calculation (can or can not so warm) then put questions in a separate branch (button Ask, orange, right).

Thank you for understanding!

Internal wall. Question more about the safety of mineral wool. What use wool from the point of view of safety to health? I read in the internet about the impact on the mineral wool and the scary direct health.

Close it Superdiffuzionnaya membrane wool from both sides. Simply "roll up" cotton wool in Superdiffuzionnaya membrane. In addition, you have the top two layers of drywall. And the damage to wool, frankly, grossly exaggerated. Vata take density 50-60 kg / m3, MDF.

Greenhouse film fit?

No, no film will not work. No greenhouse or waterproofing. Only the fact that I wrote :).

The zazvukoizolirovat plastic sewer? Plumbing changed on days 80 cm cracked iron (result of shrinkage home explained to them); Now the sound of neighbors' toilets (top 6 floors) such that.

On the pipe itself is a special pipe insulation (foamed rubber or foamed polyethylene), but it does not remove much sound. When there is a problem, as you write, you sometimes carved a "basket" of drywall on top of the pipe with mineral wool inside (at least 50 mm). Mineral wool dampens sound, but directly on the tube (without truyunoy insulation) it will not put. This, unfortunately, all the options.

Thank you so much for this article. My husband and I long to decide how all the same to soundproof your apartment from noisy neighbors. Listened to a lot of advice from friends, but they all seemed to be not very practical, but after reading, we looked for material for zvukoizolyatsi.Spustya time after repair, we were convinced that it was the right choice, the noise from the neighbors have no more worries.

Recently, under us we have a new neighbor, he constantly partying, booze-fights, in words does not understand, communicate with them longer afraid tembolee we have a small child.

We need to soundproof industrial pump unit with motor 9 mW. According to the technical task of the noise level at a distance of 1 m should not exceed 70 dB. In stock we have two solutions to the electric motor 86 dB (in excess of

16 dB) and a cheaper option than 105 dB. What technical solutions will be in the wallpaper cases. How different from each other technologically and cost?

We do not help with industrial installations. Our specialization - civil constructions.

Thank you for understanding!

Hello, please tell me! So much info and specifically I can not decide!

Impact noise really want to remove the ceiling that suits me from materials? Vibropovesy, mineral wool and gypsum fiber board cover and gkl.mne help? At least only impact noise, steps, etc.

If that's not easy to tell me that attach to the ceiling from impact noise ?!

We do materials soundguard. We live in the Leningrad region - profligate neighbors - pyanki, gnulyanki a day. We thought to go crazy. We made so far only a wall - the result stunned. Now we plan to make the floor and ceiling of the minimum, then I think it is generally quiet.

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Modern materials for sound insulation of the walls in the apartment: all the secrets

Noise - is not harmless phenomenon, how it might seem: it is no accident the level and time that is acceptable to the bustling business and pleasure, governed by the laws.

If you suffer from the violence of the neighbors, the noise of operating equipment or the screams from the playground, do not try to get used to: it can cause health problems (From hearing loss and neurological disorders, hormonal disruption and to cardiovascular disease).

In cases where it is impossible to neutralize the source of the noise, the only reasonable solution is acoustic insulation own apartment.

The first thing you need to know about the acoustic insulation: sound absorption and sound insulation - are different concepts.

Soundproofing - is the establishment of the path of the sound wave barriers that do not allow sound to enter the room or, on the contrary, spread outward. Sound absorption is due to the conversion of sound energy into heat and to reduce the intensity of the reflected wave.

Materials for this purpose, of course, require different: sound insulation must have sufficient large mass and density, and sound-absorbing - have soft, porous structure.

So, we list the main sound-absorbing materials:

  1. Plates of fiberglass or mineral wool (Preferably basalt) are effective, but have a significant thickness (3 cm). Embedded inside a special frame or gypsum sheathing gipsovolokonnyh sheets.
  2. Panels of polyurethane foam (Acoustic foam, "pyramid sound-absorbing") are mounted on a glue, and under them are not even necessarily align the surface. The thickness of such panels - from 3.5 to 10 cm; the height of each pyramid - from 2 to 7 cm.
  3. fluid Attenuation - only the name, but in reality there is sound absorption. It must be applied with a thick layer (at least 3 cm), especially not leveling: still have to close the plasterboard or decorative panel.
  4. Cork sheets or cork roll - a decorative covering, but at a thickness of 0.8-1 cm it can be used for sound insulation. sound absorption will be more effective if pressed crumb diameter of no more than 3 mm (be sure to pay attention to it, because the baby is found to 6 mm in diameter).

For sound insulation are commonly used tools from the following list:

  1. Paneling or drywall sheets gipsovolokonnyh with fastening to the wall to refer to. Between the wall and the lining should be provided a gap width of not less than 4 cm to fill noise absorbing materials (see. Above).
  2. Soundproofing panel systems (ZIPS or sandwich panels) - production version of the previous version; their thickness varies from 5.5 to 13.5 cm. finished sandwich panels are mounted directly on the wall frameless manner.
  3. Decorative insulating panel - a thin (1.2-1.5 cm) from the cardboard material layered carcass and particulate mineral filler (e.g., silica sand.). That sand does not spill out when cutting the panels, it is necessary to seal their special sections of tape.
  4. Acoustic plates of soft fiberboard - layered structure, which includes waterproofing polystyrene and reinforcing mesh. Depending on the filler thickness, the plate can turn thin (1 cm) or wide (approximately 10 cm).
  5. Panels of wood fibers (Most coniferous trees) and relatively thin (1.2 to 2.5 cm), cladding material having sound insulating properties.
  6. High-density thin membrane essentially homogeneous material, but for the convenience of a wall mount sometimes have coverage.

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How to choose a suitable insulation material?

If you do not take into account the financial component and a subjective color trim panel preferences, the main criteria are only two:

  1. Who will do the work: professionals or tenants?
  2. What is more important to minimize the level of decibels or save useful area of ​​the apartment?

If the installation is scheduled to perform with his own hands, the better to choose a sandwich panel (ZIPS), are going frameless method or any coating of glue to the entire surface of the wall.

More complex integrated insulation design provide better establish the professionals.

The answer to the second question makes it possible to choose between:

  • Wall paneling or paneling multilayer plasterboard (with subsequent filling of soft sound-absorbing material);
  • thin noise insulation coatings.

Read also the article about choosing the best material for lining the front of the house.

Thin sound insulation materials

If objectively, the thin insulation is not self-sufficient means: Even the manufacturers in the description of the material often indicate that it is intended for use in the "puff" panels.

However, many people prefer to do their best for sound insulation in the case when, for whatever reason, "sandwich" structures are not applicable.

Here is a list of the most common materials and their approximate thickness:

  • lead foil in the "cover" of the polyurethane foam - 0, 7 cm;
  • polymer-bitumen membrane coated with polypropylene - 0.4 cm;
  • mineral membranes - 0,25-0,37 cm;
  • polyethylene insulation under wallpaper - 0.5 cm (detail in the following sections.).

Among the thin single-layer materials better soundproof ones that have a large mass and density and how can a higher critical frequency (preferably the range is picked up by the human ear) - i.e. not exactly polyethylene.

Not everyone knows that the sound-insulating material is possible depending on the frequency of "hostile" sound. So, the critical frequency is the smallest frequency, after which the sound insulating properties of the material are reduced.

Of the usual materials the most critical frequency It has lead to a level below - Steel, concrete, brick, tires. If you choose this criterion, the best option - to lead the membrane. But, as lead - not the most salubrious element periodic table, it is worth a closer look and to polymer-bitumen membrane: this synthetic material has a critical lead frequency, but does not contain harmful impurities.

The most popular mineral membrane - aragonite (teksaund) and barite (shumoblok loaded vinyl) - as a binder component comprise polymers which provide the material ductility and elasticity. The small thickness of the membrane makes it possible to enhance the effect of their use in multiple layers, alternating with a footfall sound absorption.

With a little stretch to a thin sound insulation include the previously discussed:

  • acoustic plate (minimum thickness of 1 cm);
  • decorative panels from wood fibers (1.2 cm);
  • Roller cork (0.8 cm).

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The main methods of noise with their hands isolation

With noise wafting from the street, it is quite cope plastic windows, but the main thing is not to overdo it: it is not necessary to order two, three-chamber glazed windows, as more windows not only improves, but in some cases may impair sound insulation. It is better to set the single-chamber bag (two glasses) with the largest possible distance between them.

Much more difficult to neutralize the noise emanating from sources inside the room (in our case - the apartment building). Fortunately, the preparatory stage of work on soundproofing your apartment can fulfill any, who once faced with repairs.

Start with better sealing joints between plates and embedding the other slots and holes. If the gap is larger, it is necessary blow them with foam or, at worst, tightly zatrambovat cloth, if small - just gently for putty.

Another important point - to get rid of through outlets (it will have slightly reshape Electricity), and strengthen the rest of the nest.

Now turn plaster (of course, high-quality, flexible, with good adhesion). It turns out that a thick layer of plaster plus plaster has given a good level of sound insulation: in the standard situation, when our neighbors non-repair, non-holiday and non-fight, you may well be able to sleep peacefully or work.

Soundproofing the walls in the apartment: a video guide.

If the "standard" of the situation - are the exception rather of the rules, without additional sound insulation can not do. To install their own hands will fit:

  • sound insulating sandwich panel (ZIPS);
  • Decorative panel with particulate filler;
  • panel of wood fibers or compressed cork;
  • thin insulating coating of high density;
  • liquid sound insulation;
  • plastic substrate under the wallpaper.

All of these materials They do not require special installation skills: They can be equipped with a soundproof room, everyone can!

For insulation of walls in spacious rooms preference is given to a combination of multilayer structures: their sound insulation properties are significantly higher than in homogeneous materials.

If you are a professional in the field of construction and repair work, for you will not be difficult to sheathe the walls of plasterboard with mineral or glass fiber-filled skin: this option - a classic acoustic insulation, but cheaper well-finished panels.

What do sound insulation of walls under the wallpaper?

Thus, the walls are prepared for finishing plaster. If you decide to make a light noise insulation foam polyethylene doshpaklevyvat is not necessarily the ideal, the material itself perfectly hides minor irregularities.

PE foam substrate under the wallpaper is usually on both sides already papered with paper and rolled up into rolls, so it simply cut pieces of the desired length and glued to the plaster (without overlaps!) Glue for heavy wallpapers.

Be sure to take care of that while working and drying material at room temperature was above 10◦C.

When the substrate dries, can be glued any wallpaper as ready for painting and (material water repellent, vodoemulsionku so it does not hurt).

Do you know what kind of heater is best suited under the siding? Read about it here.

The purpose of sound insulation of the ceiling - not just to get rid of the air (airborne), but also on the structural (via floor slabs) noise.

Last type of noise is also called vibration or shock: here are the sounds that occur when you drag furniture, falling heavy objects, walking on his heels on the parquet floor, etc.

Important: no matter what method of noise reduction is selected, the first step is to zapenit or putty gap between the plates.

Whatever the initial height of the room, better to sacrifice centimeters: the optimal solution for the insulation of impact noise will be the installation of a suspended drywall or stretch ceiling.

Moreover, the gap between the floor and ceiling of the newly formed must be filled with a good sound-absorbing material (see. Photos) (In any case no foam!).

Note also the fact that bracket (and the substrate under them) were also soundproof.

And the tension, and a suspended ceiling among professional builders has many ardent supporters, so you decide. An additional advantage in favor of the tension is the fact that his coat is in itself already a decorative element, while plasterboard structures need to putty, wallpaper or paint.

If the height of the room is so small that you do not allow even the thought of it decreasing, it is worth a try, decorative ecological insulating panel (1.2-1.5 cm thick) or hyperfine aragonite proofing membrane.

Important: a ceiling soundproofing (without walls and floor) will not help to remove completely, even the noise from the neighbors above, because the sound is able to spread through the wall partitions.

Held immediately review materials for acoustic insulation, of course, is not complete, but it can be the starting point of your search.

And remember: if you like to read aloud or Mayakovsky decided to learn to play the violin, only quality mounted insulation will save you from sidelong glances neighbors!

Thank you! I went to the store purchased the eyeballs

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