Subtleties of the process of soundproofing sewer pipes. Soundproofing sewer pipes in an apartment: selection of materials and detailed instructions Soundproofing a drain pipe

Today there is actual question: how to build soundproofing for sewer pipes in a residential area? This question arose as a result of the emergence plastic pipes sewerage. Soundproofing sewer pipes in an apartment is a crucial moment.

If sewer elements made of cast iron made noise, it was only during the first time after their installation. Plastic material almost completely superior to cast iron in all respects. There is only one minus - plastic turned out to be a very “loud” material.

Today, insulation of sewer pipes is a mandatory step, and it is planned in advance during the design of the entire sewer system. However, this procedure is generally easy and does not require any specific skills, strength or tools. Also this event is inexpensive.

Absolutely anyone who knows how to use scissors can soundproof sewer pipes in an apartment. But still, this work has its own nuances, which are presented in the form of acoustic processes in sewer elements and their interaction with the entire structure of the house.

Some applied simple methods may not be effective, so many dangerous acoustic effects may not be neutralized.

Experts highlight different reasons and sources of unfavorable sound:

• Impact noise. What causes it? Everything that is contained hits the walls when falling in the riser.
• Atmospheric noise. The source of this unfavorable sound is the wind, which penetrates into the riser and is ventilated.
• Resonant noise. Extraneous noise appears in sewer pipes.
• Vibration noise. The elements are subject to vibrations of the entire structure of the house.

These are not all the causes of unfavorable sound in sewer pipes, but they are the most common.

Why this design is it so sensitive to all noise? Because the sewer component is a resonant acoustic system. The length of sewer risers can reach several tens of meters.

Noises arise not only from the fact that the walls of the pipes vibrate. They also occur as a result of bending and stretching.

Degree of sound insulation of sewer pipes

You will have to spend money on sound insulation. Costs may vary depending on the size and effectiveness of the insulating material itself, which will absorb noise. In order not to sacrifice your money and effort, you need to decide how to isolate the sewer components. It is necessary to calculate the sound intensity.

A sound level of 20 dB is acceptable indoors. High sound insulation – 40 dB.

Methods for soundproofing sewer pipes in an apartment

The best sound insulation of sewer pipes in an apartment is the sound insulation of the pipe itself. How does this happen? A sound-absorbing element is created, to which mineral powder is added - this is the sound insulation of pipes. The result obtained resembles a eutectic and the structure acts in the same way.

The best such mineral powder is marble flour. The main feature of sound-absorbing pipes if you want to purchase them is thickened walls. They also have a white color. Such pipes from “big” manufacturers have a name and logo, and the number of decibels is written on them - this is an indicator of noise reduction.

Like cast iron materials, plastic, which has all these characteristics, completely absorbs all unfavorable sounds, including infrasound. But main drawback is that they have high price, and their service life is approximately twenty years.

What if your pipes are already installed and they are ordinary? Or do you not want to spend a lot of money to purchase special sewer pipes? It's worth a little work. Work must begin with the riser, and, first of all, eliminate infrasound. You will no longer hear noise when you are not in the toilet. There are two ways:

• The riser needs to be partially replaced. Soundproofing of the riser is also carried out.
• Produce complete replacement riser made of plastic. This must be done if sound insulation of the sewer riser is impossible.

The first method is quite convenient if you have also replaced cast iron with plastic. The whole procedure consists in the fact that parts of cast iron together with crosspieces are left in their original form in the ceilings, and the plaque that has formed in the inside of the sewer pipes is treated with a chemical substance intended for cleaning, for example, “Mole” and so on.

This method has a number of advantages:

• repair of sewer pipes does not affect construction devices in any way;
• in the future, if you plan to replace cast iron with plastic, the whole process will become simpler and easier;
• your cash costs will be significantly reduced;
• thanks to partial replacement of the riser, the noise becomes psychophysiologically safe;
• after partial replacement, some others additional work Most likely, you don’t need to carry out noise insulation;
• during operation, the riser may become clogged, but the source will be known to you immediately, after which you will be able to carry out mechanical cleaning;

What to do if you have a replaced one installed plastic riser? It can also be isolated from adverse noise. The ceilings must be covered with a plastic cup along with polyurethane foam filling. And from the walls - with soundproofing clamps.

Polyethylene is a material that is completely equal in its characteristics to cast iron. Soundproofing sewer riser, which has already been installed, in order to carry it out, the glass is cut lengthwise and the sewer component is covered with it, then it is installed in the ceiling opening. This is how the sewer riser is soundproofed. Before this, of course, the opening must be made free.

Under no circumstances should the glass be filled with polystyrene foam, mineral wool or polyurethane foam, since all these materials are “transparent” to infrasound. The glass should be filled only with polyurethane foam. The damping clamp does not need to be replaced with new material. You just need to lay down parts of microporous rubber.

Types of soundproofing materials

Let's look at the main types of materials in more detail.

Types of soundproofing materials:

• Use of foamed polyethylene. This material Excellent not only for sound insulation, but also for thermal insulation. Foamed polyethylene protects sewer pipes from condensation. This serves as a guarantee that mold and mildew will not appear on the surface.

The outer layer of the membrane should be the most rigid, since the service life of this material is much longer.

• Soundproofing tape. This specially designed tape is wrapped around required element until a dense layer is created. Soundproofing of plastic sewer pipes can be done using this material.
• Roll noise insulation. Is not modern type material that is used for sound insulation, but is alternative option new.

It is important to prevent air bubbles from appearing between the layers of noise insulation.

Most common mistakes

There are cases when, after carrying out soundproofing work, the desired effect is not achieved. This happens due to mistakes made. Let's look at them:

• Incorrect choice of sound absorber. TO this choice refers to mineral wool or mounting Mineral wool is an excellent material intended for insulation, but it is not very suitable for isolating noisy sounds.
• It may be that soundproofing material does not lie tightly on the sewer pipeline.
• During installation of the riser, a rubber sealing gasket is not installed.
• Rubber gaskets are not used when attaching clamps to the wall.

In order to get rid of the noise of sewer pipes, it is necessary to use the most modern soundproofing materials. Such modern materials are foamed polyethylene, porous rubber and others. Reducing noisy sounds will help you achieve comfort and coziness in your living space. You are required to spend your time on this work.

Additional methods for soundproofing sewer pipes

It’s worth understanding that you won’t get rid of noise completely, but you can reduce it as much as possible. Additional guidance: using silent sewer pipes. This is one of the solutions to eliminate unpleasant sounds. Companies that produce plastic pipes produce specially designed material with high sound insulation properties. The main differences of this material are that they have thick walls, and they also have a special structure.

If you use special plastic pipes, then you completely eliminate the possibility of resonance formation. Thanks to this, the noise level generated is significantly reduced. Which features have “silent” plastic pipes?

This material has White color, the cost of such plastic pipes is much higher. This is the main drawback that repels potential buyers. But to achieve maximum comfort and coziness, you will have to spend your money. IN in this case no need to be frugal.

Soundproofing measures

Let's consider a number of measures that should be carried out for pipes and should be insulated:

• The use of specially designed clamps that are used to secure pipes to walls. What is the purpose of these clamps? Clamps serve as an obstacle to the transmission of sound waves in pipes. These sound waves travel towards the walls, so you hear all the noise that occurs.
• In pipe transitions you need to install specially designed sound-absorbing components. These elements are sleeves that are made of elastic rubber.
• Soundproofing risers and sewer pipes using soundproofing membranes. This film needs to be cut. This must be done so that the width can completely cover the sewer element. All edges should be connected. Use construction tape to secure these edges. They need to be wrapped in three layers. Layers should be applied tightly. Using this procedure, you can increase the weight of the sewer pipe and eliminate the possibility of resonance.

Bottom line

Today there are many methods that are aimed at sewer pipes and its soundproofing work. Sound insulation of the sewer riser, sound insulation of sewer pipes, sound insulation of the drain pipe, the use of sound-absorbing materials - all this is included in general work. Soundproofing a sewer pipe is labor-intensive work, but it can be done with your own efforts.

Soundproofing a sewer riser in a multi-storey building is quite feasible, but even before starting any work, you need to clearly understand that completely getting rid of the sounds emitted by a sewer riser is a rather troublesome undertaking. Most often, sound insulation does not mean getting rid of noise, but only reducing it to an acceptable, comfortable level.

Soundproofing sewer riser methods

In fact, the set of such methods is very limited and, depending on the specific situation, only one of them can be used, but sound insulation of a sewer riser is most effective when combined, mutually used, all methods or their combinations.

Soundproofing the sewer riser using sound-absorbing pipes

Unlike standard PVC sewer risers, with dimensions of 110 × 2.7 mm, such pipes are distinguished by a thicker wall (3.4-5.3 mm), greater weight (due to the use of mineral filler), color (from white to light gray) and cost (830-1300 rub/m) Here famous manufacturers these products are “Politek”, “Rehau”, “Waving”, “Ostendorf”.

If you believe the manufacturers, then compared to polypropylene pipe, the noise level will decrease from 4 to 12.8 dB, but this does not mean that the riser will stop making sounds, and the problem of structural noise still remains. You can read about the difference between noise and their assessment in this.

additional materials

Although we talk about the sewer riser as a separate pipe, in reality it is not. In addition to the pipe itself, the design of the sewer riser consists of at least: a three-socket cross, a revision with a socket, 1-4 clamps for plumbing pipes.

Given the peculiarities of the location of the sewer riser, the choice of such materials is limited. The most convenient for installation are soft products made in the form of: tapes, rolls, individual segments. I will list the materials used: polyethylene foam, pierced fiberglass canvas, extruded polystyrene foam, various cotton wools mineral based, construction felt, acoustic foam.

Unfortunately, all the advantages of these materials are limited by ease of installation. Having good thermal insulation properties, sound insulation is more likely to have a side effect. This is indirectly recognized by the manufacturers themselves, for example, the Energoflex company, which in good faith promises only to reduce the noise level.

The application technology is simple. The material is applied, wound, and excess is removed. For fixation, mounting perforated or adhesive flexible tape is used. That's all, actually. It’s not very beautiful, it’s not effective enough, but it’s better this way than not at all.

Sound insulation of sewerage using a coveringboxes

This approach will solve two problems at once: reduce the level of noise emanating from the sewer riser and hide an aesthetically unattractive part of the plumbing equipment. It is not difficult to make a box using metal profiles. The technology has been proven and differs little from the manufacture of soundproof partitions. It is more difficult to think of a successful configuration and design of the fence that organically fits into the interior of the room.

For those who forgot or didn’t know, let me remind you:

1. Application of an independent frame.
2. Filling internal space sound-absorbing material. When selecting filler, keep in mind that polystyrene foam, polystyrene (foam plastic), are transparent to airborne noise, and mineral wool (any) can cause other problems, but with health.
3. Double or triple lining. For cladding, you can use moisture-resistant gypsum board or moisture-resistant plywood, but it is better to use glass magnesite sheet(SML), whose sound insulation index is much higher (44 dB for gypsum board 32).
4. The use of vibration suspensions and elastic gaskets at the interfaces of the structure. Most often, you can get by with pieces of rubber or unused pieces of linoleum.
5. Seal joints and cracks with sealant. For this, it is not at all necessary to buy a special acoustic sealant; regular silicone sealant will do.

Soundproofing sewerage using closed soundproof shell

This design is based on the “pipe-in-pipe” principle. As an external casing, you can use a polyethylene pipe with subsequent modification, cutting into sections convenient for installation and making a vertical cut for putting on the riser. As an option, use pipe thermal insulation made of foamed polyethylene, for example, Energoflex Super 160x20.

Unlike the second method, the outer pipe is taken bigger size. So, if the insulated pipe has a diameter of 110 mm, then PE SDR 21 160×7.7 mm is suitable, and the resulting volume (7.3 mm per radius) is filled with a moisture-resistant mineral filler, ordinary quartz sand.

As the practice of manufacturing and operation has shown, this approach is distinguished by: absolute efficiency, low cost and the best adaptation to specific conditions. Unfortunately, when making sound insulation for a sewer pipe in this way, it is difficult, and sometimes impossible, to maintain the integrity of the structure throughout, and this significantly affects the result.

How to deal with structural noise

Structural noise is transmitted through building structural elements. I will show this using the example of a working power tool, in an apartment located two floors above yours. Along the chain: sound source → floor slab → sewer riser, the sound will appear in your apartment in the form of howling, rattling noises, for some unknown reason reproduced by the pipe.

It will help to partially eliminate structural noise correct installation boner Here, the concept “correct” means the use of vibration isolation in places where the sewer riser passes through the floor slabs, and for this, at a minimum, you need to secure the good will and readiness for interaction of neighbors along the riser.

Residents apartment buildings We are familiar firsthand with the problems of noise from the sewer riser. Many people endure extraneous sounds for years and completely in vain, because you can get rid of them in just a few hours, significantly reducing the noise level.

What is it for?

Unfortunately, there is no method that could completely rid an apartment of the sounds of flowing drains, but it is possible to reduce them to a minimum level. As a rule, to achieve this, either silent pipes are installed in the toilet, or existing pipes are soundproofed. The main task of all measures for noise insulation of sewer pipes is the following:

• to repay harmful vibrations pipe walls;
• completely eliminate any transmission of elastic vibrations of the pipe to general design premises;
• reduce the level of audibility of the sounds of draining water in the apartment.

Any soundproofing costs money, and the costs increase with the square of the degree to which it absorbs noise. In order not to sacrifice comfort and health, but at the same time not to spend too much, you need to know as accurately as possible how much you need to dampen all vibrations of sound waves.

Here it is necessary to recall a little physics course. Sound intensity is measured in bels; in practice, it is usually considered to be a tenth of it - decibels. Thus, the hearing threshold is 0 dB, a whisper or a quiet voice is 20–30 dB, a metalworking shop or highway is 70–80 dB, a rock concert is 90–100 dB, a plane taking off is up to 120 dB. When sound levels reach 130 dB, painful sensations, and at 140 dB the eardrums begin to burst and blood flows from the ears. From the above, we can draw a simple conclusion - the level of sound insulation of the sewer riser in the apartment should attenuate the sound to a level safe for health - 20–30 dB.

Causes of noise

The causes of noise in sewer pipes may be as follows:

• insufficient strength of pipe walls;
• the material from which the drain system is made;
• poor placement of pipes in the apartment;
• poorly selected seal.

The main source of unnecessary sounds in the sewer system is the riser. The drain streams moving in it usually create quite strong vibrations, which can cause significant discomfort. Moreover, they may be unsafe for the physical and mental health of people living in the apartment.

The volume of the sewer depends directly on the number of floors of the building. The lower the apartment is located, the greater the noise level in the common riser.

This is quite simply explained - moving down, wastewater comes into contact with each other, as well as with various elements drainage system and pipe walls. All this leads to vibrations, which are transmitted to the main floors as the water drains. Besides, drain water come into contact with the air that is inside the riser. Moreover, the more intense the speed of fluid movement, the louder the sound, which is why the inhabitants of apartments on the first floors experience more discomfort than those whose apartments are located under the roof.

There are several types of noise in the sewer system.

• Drums. They occur when water falls and comes into contact with elements of the drainage system. This type of sound cannot be eliminated. The only thing that experts advise is to reduce it to a minimum.
• Airborne. They occur due to the contact of water with air inside the pipe. This type of noise occurs rarely and its intensity is mild.
• Structural. This is a rather unpleasant type of sound variation, its source is directly inner part pipes, parts of the sewer system, walls and ceilings that are in constant contact with the riser. They arise due to the transmission of vibrations from the pipe to structural elements building. It is this type of noise that needs to be eliminated as completely as possible, and from the point of view of installation technology, this is quite simple to do.

It is necessary to dwell in more detail on what can affect the level of unpleasant noise. In addition to the number of floors, this parameter is influenced by the material from which the pipes are made. According to experts, plastic products They create noise that is much more pronounced than cast iron ones. This is due to the high degree of mechanical quality factor of the metal alloy. It consists of small particles that rub against each other and thereby absorb the main flow of vibration, which is the cause of audio effects. Another point is plaque, which often forms on the inner surface of cast iron pipes; it acts as a kind of sound insulator.

But plastic does not have similar characteristics, which is why such pipes can be compared to a musical instrument, which actively transmits the sounds of the drains themselves and reflects all the vibrations due to their flow. In addition, plaque does not form in PVC pipes. On the one hand, this significantly increases their service life, but on the other hand, it completely eliminates the possibility of the formation of any soundproofing layer of natural origin inside the sewer system itself.

The thickness of the pipes also plays an important role. The larger it is, the better the sound insulation. A similar pattern is observed in relation to the mass of the material - the more specific gravity the material from which the sewage system is made, the higher its ability to effectively absorb decibels.

The location of the pipes can also play a role. From the point of view of sound insulation, the most correct would be to place the sewerage system in the interfloor space, outside the residential premises. When designing houses, it is strictly prohibited to pass a riser through interior ceilings. Only interfloor crossings are allowed, which can significantly reduce the level of vibration. The sealing gasket also affects the audibility of extraneous sounds. Often, when carrying out repair and construction work, they are used to equip the sewer system. polyurethane foam- this is a fairly common mistake, since foam is not a soundproofing material; on the contrary, it even enhances the noise coming from the sewer.

Types of materials

The optimal solution to get rid of sewer noise is to move the riser. If you take it outside the apartment, its sounds will not disturb the household. However, these issues must be resolved at the design stage of construction work. As practice shows, such a system is not always equipped and not everywhere, even in new buildings. As a rule, the riser is placed in a bathroom or toilet, so this article only discusses ways to increase the sound absorption of pipes located in the living space of apartment buildings.

Ways to reduce sounds passing through the drain riser can be as follows:

• install silent pipes;
• soundproof the riser with your own hands;
• use special clamps to secure the pipe;
• fix soundproofing material;
• build a decorative box, filling the inside with soundproofing material.

Silent sewer pipes have appeared on the construction market relatively recently. They are distinguished by increased density and thicker walls, as well as special components. The most commonly used fillers are microcalcite, chalk and limestone, that is, fine grinding fractions of carbonate minerals. All this allows you to significantly reduce the sounds of merging drains. Such pipes dampen not only noise, but also infrasound. However, their prices are much higher than simple pipes made of PVC, and they last no more than two decades.

If the apartment already has an installed sewer pipeline system, and there is no way to replace it, then there is a way out - you need to use soundproofing materials. They will significantly reduce the severity of acoustic effects.

Sound insulation is carried out by the most various materials, and even a novice master can do it. Most often used modern materials– this is foamed polyethylene, as well as porous rubber or isopropylene. Many people buy polyurethane foam and it is completely in vain. It is an excellent conductor of sounds, so unpleasant effects may not only not decrease, but, on the contrary, become more pronounced.

To minimize sounds merging from neighboring flows, you should pay attention to fastenings with special rubberized gaskets in clamps.

Their use prevents the transmission of noise to the walls and, accordingly, reduces vibration and the release of infrasonic vibrations. The place where the riser passes, as well as in places of contact with the ceilings, must be sealed with porous rubber. This also helps to reduce the severity of the transmission of the acoustic effect by floors and load-bearing elements building.

Not everyone likes the look of a riser wrapped in insulating material; in this case, you can equip a box and cover it with decorative finishing materials. By the way, this will create additional sound insulation. However, you should not completely cover the riser with a box, especially if there is an inspection in the bathroom. In addition, it is necessary to ensure free access to the water supply system, which most often runs almost close to the sewer riser, in order to repair it if necessary. drainpipe. This is important in the event of a breakdown or emergency, as it will help provide quick access to the site of damage and promptly eliminate all shortcomings. Otherwise, you will have to dismantle the entire box and only then begin repair work.

How to choose?

PVC is a material that, according to its physical and technical characteristics, is already a very good insulating material. Its noise-absorbing ability is well known, which is why when installing plastic pipes there is no need to use additional sound insulation. However, such a need may arise if it is necessary to reduce the severity of vibration. In this case, the place where the pipe comes into contact with the ceilings, regardless of what material is used, must be covered with a special sleeve. The space between it and the pipe itself must be filled with sealant.

When carrying out work on soundproofing sewers, first of all it is necessary to reduce the level of infrasound. This can be done by partially replacing the riser or damping the entire riser as a whole.

The first option is optimal. When the riser is made of cast iron pipes, then you can replace their individual parts with plastic, while fragments of the old pipe with crosses remain in their places, and the plaque inside these areas is removed with any means such as “Mole” or “Shumanit”. Sections of PVC pipes are mounted between them. With this method, the basic building construction, and the work itself of replacing cast iron with plastic is significantly simplified, and the cost of such repairs is lower than if it were necessary to change the entire riser completely.

This method is also good in terms of sound, since in this case the pipe is divided into sections approximately 3–5 meters long. This leads to a sharp drop in the resonant islands on the sound spectrum, and the gaps between these very “islands” are wider than the resonant zone itself. Thus, unpleasant sound not only decreases, but its character also changes. From a psychophysical point of view, it becomes safe for humans. Another plus is that if it breaks, you can easily replace one separate fragment.

If the riser has already been replaced, there is no need to break it to install fragments of cast iron with crosspieces. An entire riser of PVC pipes is well insulated from resonating structures as follows:

• from the walls with special damping clamps;
• from covering with a polyethylene glass with polyurethane foam. At the same time, it is by no means necessary to look for special cylinders on sale. Any store has a large assortment inexpensive “alternative” pipes for fan sound insulation, trimmings of a larger diameter that can be used as a glass. To do this, you need to cut it vertically and “cover” the pipe with it. It is worth considering that it is not recommended to fill the space between the glass and the pipe with anything other than polyurethane foam, since only polyurethane foam can reduce the level of sound waves.

And finally, it makes sense to get rid of the harmless “rumbling” and “gurgling”. To do this, the pipes are wrapped in a foam shell. It is quite easy to install. It should be secured, snapped and secured with construction tape. This method is ideal for a flat pipe. But if there are curved surfaces on the riser, then you should give preference to polyurethane foam, which takes any desired shape. It is more expensive, so some users purchase polyethylene foam, which has ideal sound insulation. However, this material is very short-lived; after just one season it turns sour and, as a result, disintegrates.

You should think carefully about whether it is worth using polyethylene, because sound insulation is not installed for a year or two.

More big mistake committed by those who use mineral wool to improve sound absorption. Let's start with the fact that, in accordance with current sanitary standards, this material is strictly prohibited for use inside residential premises. Since it releases microneedles into the apartments, leading to skin diseases and problems with the respiratory system. And besides, mineral wool does not dampen infrasound at all, so its use is not only dangerous, but also pointless.

Installation

Soundproofing sewer pipes is not difficult. Even a beginner can handle this job home craftsman However, you need to know some features of installation technology. There are three main methods of insulation:

• use of foam shell;
• by installing rolled material;
• sound insulation by installing a plasterboard box.

Modern houses are surrounded by communications from the roof to the basement. All of them are designed to improve people's lives, make it more comfortable and easier, but sometimes it happens that they bring inconvenience. One of these inconveniences is caused by plastic sewer drain, which, for all its practicality, creates more noise in the house than cast iron. This problem is especially acute among residents of apartment buildings who live on lower floors. But this is not a reason to refuse this material and not use it. Soundproofing pipes with your own hands is quick and easy.

Sources of noise in sewer pipes

The main culprit of sewer noise is the riser. Water flows in it can create very strong vibrations, which not only cause discomfort, but are also very harmful to physical and mental health, since there are decibel standards acceptable in a residential area.

The volume of sewerage sounds directly depends on the height of the building. The lower the apartment is, the greater the noise in the riser. It’s quite simple to explain - flowing down, streams Wastewater collide with the pipe, various elements of the system and with each other. Vibrations are generated that are transmitted to the floors. Also, water flows collide with air inside the riser. The higher the speed of flowing water, the greater the air resistance. And this speed is higher, the longer the distance the runoff has already covered. Therefore, residents of apartments located closer to the basement feel much more discomfort from sewer noise than residents of upper floors.

Several types of noise are generated in the sewer riser:

• From the blow. It occurs when water comes into contact with sewerage elements when falling. This type of noise cannot be completely eliminated, but it can be easily minimized.
• Air. Its cause is the air contained in the riser. It is not as significant as the type of noise described above, and is rarely very noticeable against the general background.
• Structural. Most unpleasant look noise that causes the most harm and discomfort. Its source is inner surface pipes, sewerage parts, concrete floors and walls that come into contact with the sewer riser. During its passage through the pipe, water transmits vibration to them, which then spreads through all the mentioned elements and creates unpleasant sound effects. Eliminate this type noise is necessary first and is the easiest thing to do.

What determines the noise level in a sewer pipe?

The noise level in the sewer directly depends on what material it is made of. Researchers estimate that plastic pipes create more noise than cast iron pipes. This is due to the fact that cast iron has a higher mechanical quality factor - the small particles that make up this material rub against each other and thus absorb vibration, which creates acoustic effects. Another factor is the plaque that forms inside cast iron pipe, it becomes an additional soundproofing layer.

Pipes PVC sewer do not have such characteristics, and therefore resemble a huge musical instrument, which transmits not only the sound of water flowing over it, but also the vibrations of the building itself. This effect is created by the thin walls of the pipe, which are very sensitive to any vibrations. No plaque forms inside plastic pipes. On the one hand, this allows them to serve for a long time, but, on the other hand, it eliminates the occurrence of a natural soundproofing gasket inside the sewer itself.

In general, the noise level in the sewer depends on the following factors:

• The material from which the pipes are made. As mentioned above, the sound-absorbing characteristics of cast iron sewer pipes make them completely silent and do not require additional insulation. But if you install plastic or HDPE sewerage, it is advisable to carry out additional work to soundproof it.
• The thickness of the material from which the pipe is made and its weight. The thicker the material and the greater the mass, the higher the pipe's ability to absorb decibels. When choosing a sewer, pay attention to its thickness.
• The location of the pipe relative to the walls. Most the best way sewerage location - outside residential premises, in slabs between floors. When designing, it is impossible to allow the riser to pass through the interior ceilings. It should only cross between floors. This will reduce vibration from its operation. The most unacceptable option for installing sewerage is through inter-apartment walls.
• Sealing gasket and its type. Sometimes when installing sewer systems, polyurethane foam is used, which perfectly conducts sounds. This material not only is not soundproofing, it makes the sewage system even noisier. It is best to use foamed polyethylene or rubber gaskets as a seal for this system.

How to reduce noise

It is important to understand that there is no method that could completely eliminate the sounds of sewerage. Sound insulation of pipes will help reduce them to a minimum, but not to zero. This is done in two ways:

• Install silent pipes.
• Carry out soundproofing measures for existing pipes.

Silent pipes are special kind products, they have high level soundproof and do not require additional work. Their differences from conventional sewerage are in thicker walls and material structure, which helps reduce the level of vibrations in the pipe. Such sewer pipes in the house will significantly reduce noise.

Flaw this method the fact that pipe installation is required. If repairs are not planned, this event can become very expensive. The second drawback is that the pipes are only available in white. Third, the cost of the material itself is an order of magnitude higher than the total price for sound insulation of already installed pipes.

As for sound insulation, you only need some materials and simple instructions How to quickly carry out this process with your own hands.

What material to use for soundproofing a sewer pipe

Before you begin soundproofing pipes, you need to decide what material to use. Foamed polyethylene is often used for this task. This is an excellent soundproofing material that fits tightly around the pipe. In addition to its intended purpose, it also protects the sewer system from condensation, thereby preventing the appearance of fungus.

Another interesting option is soundproofing tape. Its installation is very simple - the pipe is wrapped in several layers of tape. The thicker the material, the better it will fulfill its intended purpose, so choose roll insulation or foamed polyethylene.

Helpful tips for choosing material:

• When choosing a material for sound insulation, pay attention to the number of decibels it absorbs. The higher this indicator, the better. In practice, it is worth subtracting 15-20% from the value stated on the label.
• Give preference to material that has a rigid outside- it will extend its service life.
• Do not use foam for soundproofing, as it does not absorb sound.
• Give up mineral wool to protect your health. Its use in residential premises leads to diseases respiratory system and skin.

How to carry out soundproofing work on a sewer pipe

To insulate sewer pipes using roll materials, use the following instructions:

• First, you need to measure the area of ​​the pipes to determine the amount of material needed.
• Next, purchase soundproofing material and construction tape.
• To prepare sound insulation, to do this it is necessary to cut the material so that it can completely encircle the pipe.
• Wrap the pipe with the prepared material so that the edges meet end to end.
• Secure sound insulation with construction tape.
• Wrap the pipe with construction tape in at least three layers. Each layer must be laid very tightly. This will increase the weight of the pipe and reduce sound resonance.
• For better effect, a plasterboard box is erected around the pipes. All free space it is filled with a sealant. This is done only if the size of the room allows.

For additional sound insulation, it is necessary to use clamps with rubber gaskets to secure the pipe to the wall. They muffle all sounds that come from the wall to the partition, thereby reducing vibrations from the operation of the sewer system. Old fasteners without rubber gaskets should not be used.

When laying pipes in the ceiling, it is necessary to use rubber gaskets. The riser should not be allowed to come into direct contact with the concrete. This will make all soundproofing work pointless, since vibrations will be transmitted to the ceiling and create additional noise. Rubber gaskets are placed directly between the sewer line and the wall.

Elastic rubber sleeves can be installed in sewer crossings - this is a very effective sewer element that absorbs noise.

During soundproofing work, it is necessary to ensure that the material fits tightly to the pipe, otherwise the desired effect of the work will not be achieved. There should also be no air bubbles between the layers of insulation.

If you plan to build a box around the riser, then you should leave access to all connections, so that in case of blockages and emergency situations do not dismantle the entire structure.

If you have thermally insulated pipes, then you should not neglect sound insulation. Materials for protecting pipes from low temperatures, as a rule, practically do not absorb sounds.

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Cast iron or plastic?

Disadvantage: appearance of structural noise.

What needs to be done or how to cover the sewer pipe so that unpleasant noises are not heard?
What materials need to be purchased to completely soundproof a drain pipe?
These and other questions related to getting rid of noise in pipes in the kitchen, toilet, bathroom and generally with soundproofing work can be answered in more detail in this article.

Types of noise and causes of their occurrence

In modern sewer "acoustics" there may be various sources noise and the reasons for its occurrence.

The most common are:

• noise of resonant origin. The sounds are based on the phenomenon of resonance, where the plastic pipes themselves act as a resonator;
• atmospheric sounds. They occur during penetration air flow V ;
• vibration noises. Their occurrence is associated with the specifics of the construction of a sewer system, in which each part sounds the same as the whole pipeline. Not only risers vibrate, but also elbows, joints, and fastening clamps;
• impact type noises. They are among the loudest and most unpleasant. Anything that enters the sewer system falls from a certain height, causing a loud sound. Such a sewer vertical can be compared to a resonant-oscillatory system.

About sound-absorbing pipes

The problem can be solved simply and quickly: install a sewer system made of silent pipes. After this procedure, resonant sounds disappear, and the reduction in noise level in a house or apartment is reduced to zero.

The main external difference between silent pipes and ordinary gray plastic pipes is their white color.

Such products have the manufacturer’s logo and thickened walls, on which the soundproofing index is indicated. The higher it is, the lower the noise level will be in an apartment or private house.

A sound insulation index of 40 dB or more is considered comfortable.

When making soundproofing sewer pipes, they use special technology using special polymer or natural materials.

The design of the products provides for the presence of sound-absorbing layers with a certain amount of mineral powder, for the production of which marble flour is used. The resulting composition is capable of dampening waves in the infrasonic range.

The disadvantages include high cost products. But if you consider how much nerves and overall health such white, silent structures will save, then we can conclude: they are worth it!

About the basic conditions of sound insulation

In plumbing, there are rules for laying pipelines that cannot be neglected. Otherwise, living in your home will not be entirely comfortable. It's about about preventing the possible appearance of extraneous sounds. This most likely refers to basic plumbing rather than soundproofing. If they are followed, 80-90% of the pipes in the toilet, bathroom, and kitchen will be reliably soundproofed.

To do this you need:

• securely secure pipelines. It is recommended to place one attachment point for every 1.5-2.0 m. The best option: if the pipeline element has a length of up to 1.5 m, then one fastening, and if more than 2 m, then 2 fastenings;
• use factory-made clamps, and in no case use homemade wire parts;
• use steel fasteners with rubber elastic gaskets;
• if the riser wobbles, then you need to install it additionally required amount fastenings. It is easier to do this during the construction of a private house, although this procedure can and should be done in a finished apartment;
• Carefully seal the holes through which the risers pass through the ceiling. It is not recommended to use polyurethane foam for these purposes. Respectively building codes and the rules, polypropylene risers must pass inside polymer sleeves, the diameter of which is 7-10 mm larger than the diameter of the pipe. The remaining gap must be filled with fireproof materials;
• the sleeves can be replaced with a thick (4-6 mm) elastic shell, the effect of which will be no worse polymer part. You cannot use construction tape for these purposes, even if you wrap a lot of balls;
• during installation, make sure that the pipe can move 5-7 mm up and down, since when heated it will expand both in circumference and in height. The optimal sealant is stone wool.

Important! Starting to design a private house, please note that under no circumstances should the drain line be adjacent to the living room. IN multi-storey buildings this condition is taken into account.

It is possible that sounds are produced not only by plastic risers, but also by soundproofing elements of pipeline structures.

In such cases, they perform additional sound insulation independently, with their own hands, thanks to which sewer system operates silently.

To carry out high-quality sound insulation of sewer or fan boner, water pipes you can use:

Important! When using rolled or tape sound insulators, it is necessary to wind them more tightly to avoid the appearance of air bubbles under the wound layer. Otherwise, the sound insulation of the sewer riser will be of poor quality, since air is an excellent conductor of sound.

Today, buying material for sound insulation of fan pipes is not a problem.

Before you start purchasing insulators, you need to decide exactly:

• with a material, the choice of which depends on the location of sound insulation;
• with the amount of sound insulation.

Based on these data, taking into account your financial capabilities, you can buy the necessary sound insulation for pipes.

Alternative insulating materials and ways to ensure high-quality sound insulation

Application of car sound insulator

Anyone can do the soundproofing of a drain pipe with their own hands using non-traditional insulators.

In particular, great option to ensure high-quality sound insulation of the fan pipe - a car sound insulator.

Characteristic property: multi-layered. Most often, two-layer insulators are used, including foil and bitumen.

The sticky side is applied to the riser, from which you first need to remove the anti-adhesive paper. This material easily copes with vibrations that appear in sewer systems.

Kaiflex foam rubber

High-quality sound insulation of a sewer riser can be achieved using Kaiflex foam rubber. It is an innovative material whose structure provides for the presence of closed cells. For its production, foamed rubber of synthetic origin was used.

Its advantages:

• high thermal insulation properties;
• low thermal conductivity coefficient;
• strength and reliability.

Flaw: Designed for sound insulation of heating risers and. But the material has been successfully used for many years to soundproof ventilation pipes in apartments.

Kaiflex insulation has found its application in soundproofing pipeline systems V industrial buildings, in private construction.

Use of high-quality fastening clamps-dampers

Mounting clamp-damper

The main difficulty with soundproofing tuning of a sewer pipe in a toilet is that it is difficult to insulate or wrap the risers where they pass through the ceiling.

The fastening clamps on the walls should be a kind of dampers, capable of separating the pipes from the building structure. Otherwise, no amount of insulation will help stop the spread of shock and vibration noise.

Therefore, in order not to remove the fasteners installed on the wall, which can cause noise, you must immediately securely fasten them to the wall.

The “correct” fasteners are clamps with rubber gasket rings that can dampen any vibrations.

By tuning risers, you will only partially solve the problem of getting rid of noise. To ensure that there are no extraneous sounds in the system at all, it is necessary to take drastic measures. This method is expensive. After all, in order to replace an ordinary pipe with a “white” one, you need the consent of your neighbors, which is not always resolved positively.

Placing the riser in the box

Another way to solve the “noise” problem is to reliably insulated pipe sew it into a box (if possible), fill it with sound-absorbing material. Inexpensive but reliable.

To soundproof the cabinet itself, polyethylene foam and polyurethane foam sound insulation are used. After this, using ceramic tiles, drywall or plastic panels Carefully sew up the outer surface of the box.

Important! The presence of damping fasteners and acoustic decoupling at the floor level are the main conditions for good sound insulation of sewer risers.

All materials for sound insulation of vent and sewer risers are designed to dampen vibrations of risers and prevent the transmission of sound-alternating vibrations to the walls of rooms.