How to soundproof a sewer pipe. Subtleties of the process of soundproofing sewer pipes

The noise of sewerage in an apartment causes a lot of inconvenience to residents of multi-storey buildings.

From the article you will learn about the causes of noise, methods and materials of sound insulation, this will help you reduce the noise of the riser without the help of specialists.

Causes of noise

Noise occurs as a result of wall vibrations sewer pipes or their impacts on the material of ceilings and walls. Mobility of the building structure, fecal water that is drained into the sewer system, excessive ventilation of the riser. All this leads to vibration of the pipe walls and noise.

The riser, fixed in the floor ceilings, forms a resonant system. When the noise frequency coincides with or is a multiple of one of the resonance frequencies, the riser begins to make more noise than usual. The worse it is fixed in the ceiling and attached to the walls, the higher the resonance frequencies and the stronger the sound.

Noise is affected by the thickness of the walls of the riser, the material, method and materials of fastening the pipe to the wall. With all the advantages of thin-walled plastic pipes for sewerage, risers made of them make much more noise than those made of thick-walled plastic or cast iron.

Noise Removal

Before eliminating noise, it is necessary to determine its cause. If noise causes resonance of the collector or impacts of the collector on the ceiling, it is enough to install 1-2 additional fasteners on the pipe. If the noise is caused by the thin walls of a plastic pipe, it is necessary to wrap them with soundproofing material, cover them with a soundproofing panel, install thick-walled plastic or cast iron pipes.

To eliminate noise from excessive (improper) ventilation, contact management company. Serious intervention in the sewer system will be required, so specialists must work.

How to fix a pipe

Before starting work on securing the pipe, purchase clamps that are fastened not in the middle, but on the side. Otherwise, you will need to cut the manifold and remove 1-2 pipes in order to drill holes for clamps or do assembly.

If you cannot find such clamps and you cannot cut the collector, measure the distance from the pipe to the wall and make an assembly. Install the clamp on a steel plate 2 times the diameter of the pipe and at least 3 mm thick. Drill holes along the edges of the plate to the diameter of the dowel-nails, with which you attach it to the wall.

Place the assembly on the pipe and mark the locations for the holes for the dowel-nails. Remove the assembly and drill holes, then put the assembly back on. When installing the clamp, do not forget to place a rubber gasket. If the inside of the clamp is covered with rubber, then a gasket is not needed.

Assemble and tighten the clamp. Gently shake the pipe. If there is no play, you did everything right. If there is play, you have not secured the clamp or assembly to the wall properly, the clamp has been loosely attached to the steel plate, the clamp has not been tightened sufficiently, or it is not designed to accommodate pipes of that diameter.

How to cover a pipe with soundproofing material

For soundproofing you will need the following materials:

thermal insulation made of foamed polyethylene or other materials for insulating PVC pipes;
plastic disposable clamps 35-40 cm long;
scotch.

If you are using sleeve-type insulation, which is used to insulate pipes, cut it lengthwise. Position the insulation so that the joint is located on the side of the pipe. Mark the mounting location and cut a hole for it in the insulation. The distance from the edge of the insulation to the hole should not exceed 10 cm. Then cut the insulation to the side edge in the direction of the shortest distance.

Place and wrap the insulation around the pipe and seal the joint with tape. Then put on the second layer in the same way. If you can’t stretch the second layer, do not cut holes, but put it on so that the joint is located on the side where it is attached to the wall. After this, secure the structure with plastic disposable clamps.

If it is not possible to put sound insulation on the insulation, cut pieces of such a size that they completely cover the pipe from one fastener to the other, then put it on and secure it.

If you are using roll insulation, cut strips of it so large that they completely wrap the pipe. Install the first layer, secure with tape, then the second layer and secure with clamps.

If you use foam or mineral wool insulating shells for sound insulation, install them so that the joint of the shells passes through the pipe-to-wall mount. Cut a hole in both shells for the pipe fastening element, put both shells on and secure them with tape or plastic clamps.

Do not use foam for soundproofing. After hardening, it conducts sound perfectly.

How to make a soundproofing partition

If the level of sound insulation is insufficient or you are not satisfied appearance pipes, install a sound-absorbing partition. Use soundproofing materials for it.

If it is not possible to buy such materials, take two sheets of plywood 5-7 mm thick, cut pieces from them to the size of the partition. Don't forget to provide space for a plumbing inspection hatch.

Purchase mineral wool 30-50 mm thick. Buy wooden blocks, the thickness of which is equal to the thickness of mineral wool. Screw them with self-tapping screws to one sheet of plywood with inside around the perimeter, then screw holes around the perimeter for the inspection hatch. The edge of the bar and side surface plywood must match.

Soundproofing mineral wool panel

Drill places in the plywood for threads with which to attach mineral wool (one place - two holes with a diameter of 3-4 mm at a distance of 3-4 cm).

The distance between the fastening points is 30-40 cm. Thread a thread or rope into the holes suitable thickness, 15-20 cm long and secure with tape.

Then drill holes in the side bars for anchor bolts in the amount of 3 pieces on each side (the diameter should correspond to the diameter anchor bolt).

Place the resulting structure at the installation site, install a concrete drill in the hammer drill (the diameter of the drill is equal to the diameter of the anchor bolt), and drill to the depth of the bolt.

From the article you learned why sewer riser noise occurs, how to reduce it, and how to attach the sound insulator. You have learned how to properly install soundproofing pipes, secure them and create a sound-absorbing partition. This knowledge and skills will help you get rid of the noise of the sewer riser.

Sound insulation of sewer risers has become particularly important in connection with the widespread replacement of used cast-iron pipes with modern plastic ones, which, as it turns out, not only do not absorb sounds, but make them even more audible. Moreover, the range of “sounding” of the sewer riser has expanded to infrared, which is extremely harmful to health.

The human body is extremely sensitive to noise levels. Loud, sharp sounds of discharged sewage can cause serious illness. Their range begins in the infrared spectrum.

To understand why sound insulation of a plastic sewer riser is needed, you should: small excursion in physics, in the section of building acoustics.

Sound is a wave that is created by vibration. A sound wave is transmitted over a distance through any medium, be it air, water or solid objects (in our case, pipes, walls, ceilings and floors). Sound intensity is measured in decibels (dB).

For the human ear, audibility is represented as follows:

0 dB – threshold of audibility of sound for the human ear;
20-30 dB – a person perceives it as a whisper or silence in nature;
a threshold of 40 dB is considered normal level noise in everyday life;
about 60 dB – the noise of a busy highway;
100 dB noise level in a forge shop or at a rock concert;
130 dB is the pain threshold for humans.

Note! According to sanitary standards The sound level in a residential area should not exceed 30 dB at night and 40 dB during the day. These maximums are recorded in SanPiN 2.1.2.2645-10.

Infrasonic waves cause the greatest harm to the human body. Such vibrations are produced by a building when the mechanical vibration of the sewer riser is transmitted to the walls and floors to which the riser is rigidly connected. These waves are beyond human hearing. About them harmful effects on a person is evidenced by the fact that Nazi Germany conducted experiments with deadly infrasonic weapons.

How often do we encounter the problem of noise in sewer pipes? This is especially true for those sewer risers that run between the floors of apartments and belong to the central city sewer system.

Not all pipes make noise; there are certain types of pipes that themselves are sound insulators. And the material from which they are made depends on this.

To insulate sewer pipes in your apartment or two-story private house with sound-absorbing materials, you need to study everything existing options, who use plumbing and sewerage installation specialists for this purpose.

The rumble and noise in the sewer riser very often not only irritates, but even prevents you from sleeping at night. Therefore, most residents of apartment buildings think about how to effectively isolate the noise that sewer pipes regularly emit.

For this one not difficult task First of all, you should understand the reasons why sewer pipes make noise. Of course, streams Wastewater, dropped by neighbors above, this main reason, which produces such a roar that even blocks the sounds from the street. However, this is the reason that exists.

But there are a number of other reasons that can be eliminated to create the most comfortable conditions in your apartment:

sewer pipe material that conducts sounds well;
a poorly secured riser that dangles;
interaction of water and air flows inside pipes;
rate of fall of wastewater.

We can conditionally define three types of noise, which differ from each other in their characteristic sounds:

impact noise- precisely because of a poorly secured pipe. impact noise is produced by the pipe hitting a wall or an adjacent one, for example, a water pipe;
airborne or atmospheric noise - such sounds are created by air currents in contact with droplets of moisture collected on the inner walls of the sewer riser. Or a stream of air, through which, in turn, flows of waste water fall;
structural, vibration or resonance noise - this type of sound is created, as a rule, by vibrations of the entire sewer system, which may have been installed incorrectly or is out of date. A sewer pipe, walls, wells, revisions or ceilings can vibrate under the influence of the speed of falling water discharges from above, producing corresponding sounds.

That is why, when you have already decided on the type of noise in your sewer riser, you can understand the cause and eliminate it.

If you understand that the noise is characteristic of the pipe hitting the walls of an adjacent pipe or a wall, then you can simply secure the pipe better using special fasteners, such as additional flanges or clamps.

And if you understand that the noise emanating from the sewer riser is more like airborne or structural noise, then you can safely take on soundproofing material and wrap the pipe so that it no longer makes annoying sounds.

In general, the volume and nature of sounds inside the sewer riser differ from each other and depend on a number of factors that, one way or another, affect the strength of sound and noise in the pipes.

What does volume depend on?

The loudness of the sound of falling water can depend not only on the speed at which wastewater falls from a height of any floor through a vertically installed sewer pipe, but also on the material from which the pipe itself is made.

So, for example, a number of polymer sewer pipes emit much less noise than steel pipes. And they practically do not allow sounds to pass through at all. Cast iron pipes do not make noise because they are heavy.

And the greater the mass and thickness of the pipe walls, the greater the impact force required on the pipe walls to make them vibrate or oscillate, producing a hum or rumble.

Photo: sewer pipes and riser are wrapped with sound-absorbing material

And the thin walls of plastic pipes very often resonate with the noise of falling drains or air flows, and therefore produce sounds much louder than they would have been with cast iron sewer pipes.

This is one of the reasons why some choose to change their riser not to plastic pipes, but to traditional cast iron ones.

However, nevertheless, on the market of sewerage equipment and building materials there is a fairly wide range of plastic pipes, which are already carefully equipped by manufacturers with noise-absorbing materials or are made with thicker walls than ordinary plastic pipes.

Such pipes reinforced with noise insulation are quite suitable for installing a sewer riser without the use of additional wrapping of pipes with noise-insulating materials.

Ways to Prevent Noise

To get rid of noise in sewer pipes, you can consider a number of options and methods that will most effectively prevent loud sounds inside sewer pipes.

These methods can be the following:

structural noise absorption by laying silent pipes;
integrity of the plastic riser and soundproofing work;
suppression of infrasound using special sound insulation;
absorption unpleasant sounds polyurethane foam.

In the case of structural noise absorption, sound-absorbing pipes are used, which are most effective in this matter.

And in the case of working with soundproofing materials, special roll or sheet materials, such as:

roll synthetic;
piece patchwork or tile;
as mats made of soundproofing material.

Photo: soundproofing tapes

When wrapping with such materials, it is enough to use tape and a cutting tool.

However, not all owners apartment buildings with sewer risers, you are satisfied with the appearance of the pipes wrapped in soundproofing materials.

Of course, if it is possible to hide them in a box, then their unaesthetic appearance will not spoil the mood, but if this is not possible, then it is better to use other options that will not spoil the appearance of the toilet room too much.

Laying silent pipes

Many may ask the same question: “Are there “quiet” or silent pipes?” so that they can install noise-absorbing pipes once, and at the same time, durable material and forget about the annoying and irritating sounds inside the sewer pipes.

And the answer to this question has long been available on the sewer building materials market. Such pipes exist and are even successfully used in the installation and laying of sewer risers in order to provide the apartment with maximum noiseless pipes.

Photo: silent pipes

Silent pipes, as a rule, have their own specific structure and structure. These are not just pipes made of a homogeneous, heavy-duty plastic material, these are three-layer pipes that are equipped with a heat-insulating layer in the middle.

So, modern pipes consist of three layers:

the inner layer consists of smooth polypropylene with mineral inclusions of particles that localize noise, provide additional strength to the pipes, and also protects against corrosion and exposure to aggressive chemicals on the pipe surface;
the main middle layer is usually made of polypropylene, which is reinforced with mineral particles, thereby blocking the sound of water flowing through the pipe;
outer layer protects against external influence, and therefore made of heavy-duty polymer material: polypropylene, low-density polyethylene or reinforced polyvinyl chloride.

Photo: composition of silent pipes

To correctly install silent pipes, you must follow step by step instructions, which will serve as a good guide with certain recommendations from experts in this matter:

calculations and design - first you need to make all the measurements of the future sewer riser that you need to install. Pipes are cut according to measured and calculated dimensions. Measurements can be made using a tape measure and a pencil, and pipe cutting can be done using a hacksaw;
cleaning cut edges – cut pipes on both sides must be cleaned with a file. This is done by pointing the file at an angle of 150˚. This method of cleaning cut edges will provide more easy installation, will protect against ruptures and dents in the places of the sealing rings;
location of the sealing ring - the sealing rings should be positioned evenly, and not crookedly, exactly in the place where there are special recesses, bevels, or simply places for sealing pipes for rings in the pipes;
cleansing from dirt is required condition, all internal and external surfaces of pipes must be cleaned of dirt, any fibrous and other substances;
flare valve - for this, first smooth surface the shaped part of the part is applied silicone grease, and then the bell is put on it all the way;
mark the place of contact;
adjustment - push the pipe back only 1 cm. This gap, to compensate for the length of the pipe, will be necessary in the case when, under the merging temperature effects of hot or cold drains, the length of the pipes will change slightly;
The fitting must always be pushed in as far as it will go.

To install any type of sewer pipes, two types of fastenings can be used: rigid and floating.

Rigid fastening is carried out using a sound-absorbing clamp, an O-ring made of dense rubber or caoutchouc or some porous material.

Important! Floating fastening is used when it is necessary to ensure that the pipe can move slightly in the longitudinal direction.

Here they use clamps with or without rubber gaskets. When tightening the clamps they do not tighten tightly

Soundproofing works

Soundproofing work can use shells, cylinders or rolled materials as sound-absorbing materials.

Moreover, all these materials that are offered modern market, perform another function - thermal insulation. These include soundproofing tapes, which are sold in roll packages.

Such tapes are excellent insulation, soundproofing material, and even a sealant. Piece sound-absorbing materials are made of foamed polyethylene and are tubes that are stretched over the sewer pipe, wrapping it around it.

Foam casings and foam shells can also be used, but all of them are suitable for sound absorption in a special box.

To work on soundproofing a sewer riser, the following tools and materials are often used:

any insulating material;
stationery or any other sharp knife;
construction tape to connect the joints of the noise-absorbing material;
clamps with rubber seals for attaching the pipe to the wall;
wire or special plastic fasteners.

Other tools can be used to soundproof sewer pipes, but their selection and use entirely depend on the material used, the pipes being installed and other factors.

Do-it-yourself soundproofing of the riser

When you produce, you must understand that you simply cannot do without step-by-step instructions.

Important! That is why it is very important to listen to the recommendations of specialists on timely soundproofing of the sewer riser immediately during its installation.

However, if you already have a riser, and you are completely satisfied with it, except for the loud sounds it makes, then you can isolate the sound with your own hands using noise-absorbing materials.

To do this, you only need to follow a few important steps:

if this is urgently necessary, then you can immediately install soundproofing clamps with rubber seals;
cut to pipe size soundproofing material so that it completely goes around the entire sewer riser. In the case of rolled materials, the dimensions should be such that they overlap the pipe;
if you use soundproofing tape, then you can wrap it around the riser itself. In this case, it is necessary to strictly adhere to tightly fitting turns of the tape to each other;
wrapping the riser with overlapping roll materials, strengthen and fix it with construction tape;
for a more durable fixation, the sound insulation can also be strengthened with a wire winding or you can use plastic fasteners for this, which should be located at a distance of 20 to 25 cm from each other;
if the bathroom space allows where the sewer riser is located, then the entire structure, wrapped in sound insulation, can be hidden from prying eyes a special box made of plasterboard or plastic panels. Then, in this case, the space between the pipe and the box should be filled with foamed polyethylene;
The most important warning or recommendation is that sound insulation using polyurethane foam or mineral or glass wool is unacceptable.

Now you know how to properly soundproof a sewer riser using soundproofing materials.

Soundproofing by infrasound

Infrasound is a natural phenomenon associated with sound waves that have a low frequency, lower than humans can perceive.

Such sounds can also be made by sewer risers when they are inner space overgrown with growths over decades of use. These build-ups should be cleaned out, but this is not so easy to do.

Infrasound sound insulation is possible only in two ways:

replacing the riser only in parts and in some places;
artificial suppression of noise in the pipe throughout the plastic riser.

If you are not going to change the entire sewer riser right now, then the first option will be most convenient.

Partial replacement is carried out as follows:

sections of the cast iron pipe with crosses remain, and the middle of the pipe is sawed off using a grinder and removed;
plaque formed over the years of operation of the sewer riser inside cast iron pipes can be immediately removed using special aggressive chemicals intended for these purposes;
the plastic pipe is mounted using special adapters and fasteners;
soundproofing is immediately carried out with any material to ensure future security.

Photo: the middle of the pipe is sawed off using a grinder and removed

The situation is exactly the same with a plastic riser, only it can be replaced completely along the entire pipe and even together with crosses or sockets. Starting from the ceilings and ending with the floor.

And if the neighbors are ready to make repairs at the same time as you, then the replacement with plastic pipes will also be carried out through the ceilings.

Of course, this option is more labor-intensive and expensive in terms of the use of building materials, but this major renovation will give long years silent operation of the sewer system.

Pipe insulation with polyurethane foam

If, using the above methods, it was possible to drown out the rumble, then the unpleasant sounds of gurgling or grumbling emanating from the sewer riser can still be annoying.

To solve this problem, soundproofing material such as polyurethane foam or foam shell is used. These materials must be used to isolate sounds throughout the riser, and not just in places.

Although most experts use partial sound insulation with polyurethane. But the most important area here is the wiring or cross, which it is advisable to insulate with polyurethane foam.

Photo: pipe insulation with polyurethane foam

In terms of price, of course, polyurethane foam is more expensive than, for example, a number of rolled soundproofing materials, but it is very convenient and allows for quick sound-absorbing insulation in the most hard to reach places and bends of the sewer riser.

Whereas the foam shell is suitable only for straight sections of the pipeline.

Photo: polyurethane foam in the form roll material

Polyurethane foam can be used both in the form of mats of various widths and thicknesses, and in the form of roll material. You can also often find in ready-made version in the form of tubes.

Important! They wrap the pipes with polyurethane foam as tightly as possible for such a material, and then fix it at the overlapped joints with plastic staples or wire.

Video: pipe insulation Stenoflex 400

Possible mistakes

Frequently encountered mistakes, which, due to ignorance of certain subtleties, are regularly made by those who independently took on the soundproofing of a sewer riser, occur for several reasons:

incorrect choice of soundproofing material. For example, when choosing mineral wool, you only used this material as insulation because this material is no good as a sound absorber;
the tape, wire or plastic fasteners on the soundproofing material were tightened too loosely, as a result of which voids formed between the pipe and the material, which create additional sound resonance;
tightening clamps or other connecting elements without using a rubber gasket;
installation of a sewer riser into the ceiling without using a sealing gasket;
laying soundproofing material in a layer of insufficient thickness.

All these points are very simple. And if you constantly remember them, then you can avoid all violations during the use of noise absorbers, which means that you will provide yourself with peace of mind and comfort in your home.

Important! Also, before you start using this or that sound insulation, you need to properly understand its suitability and effectiveness.

If for you great importance If a part of the cast iron pipe is preserved for some time, then sound insulation should be done properly.

Do this either on the surface old pipe, or by removing only part of it and cleaning the growths on its inner surface.

The nature of the sound itself plays a big role, because it suggests the real reason for the hum, rumble or hum in the sewer riser.

Pipes – water supply and sewer – also contribute to the noise that penetrates us through the walls, floor and ceiling. Therefore, sound insulation water pipes, heating pipes and sewer risers in the toilet - no less important step to achieve silence in the apartment than finishing the ceiling or walls with soundproofing slabs.

Soundproofing of sewer riser – noisy systems

The noise emanating from a sewer riser or water supply system is a consequence of vibrations arising from mechanical action or due to the processes of liquid passage through pipes. In some cases, they become “intermediaries” between apartments, transmitting the sounds of conversations, a loud TV, a loud barking dog - sound waves, falling on an unprotected surface, are transformed into vibrations, which are heard by neighbors. Soundproofing pipelines in at least one of the apartments can solve this problem. Noise from the passage of fluid can occur for the following number of reasons:

Passage of water through taps;
The appearance of an internal defect;
Reduction in cross-section due to accumulation of debris or deposits on the inner surface;
Exceeding the design speed of water movement;
Poor fixation.

Sometimes the noise level is insignificant, but sometimes it causes interrupted sleep, irritation and insomnia.

Soundproofing water pipes - why is there noise?

Several factors can affect the loudness of the noise. One of the main ones is wall thickness. The thicker they are, the quieter the product will be.

What the pipe is made of - the modern polyethylene version, despite its advantages, has one significant drawback, which manufacturers are silent about. They practically do not change sound waves - they do not absorb, do not scatter. The noise passes through their walls like a knife through butter. In comparison, old cast iron pipes were virtually silent.
The location of structural elements - the contact of system elements and walls also affects the noise volume. Perfect option accommodation – in interfloor ceilings, using soundproofing agents. The worst placement is to go directly through the walls of the apartment.
Sealant – the popularity of polyurethane foam has given rise to many myths about its use. In particular, it is believed that the foam structure delays sound waves, but in reality everything is just the opposite - polyurethane foam conducts sound perfectly, and its use in sealing pipes is completely unjustified. Apparently, this myth arose due to the good heat-insulating properties of polyurethane foam, and good heat insulators are often also good noise absorbers. Instead of polyurethane foam, you should use a special acoustic sealant that absorbs vibrations.

Soundproofing sewer systems - available methods

Soundproofing of sewer pipes can be carried out using either conventional materials or specially adapted ones. The review should start with finished products– silent pipes. The material of the product walls itself is made of polypropylene with the addition of mineral components: marble powder, marble flour, chalk, dolomite, limestone. In short, grinding carbonate minerals and rocks.

You can recognize sound-absorbing pipes by their thick walls and white color. Against this background, the special marking with longitudinal green and red stripes catches the eye. In addition, branded pipes always contain information about the company and the degree of sound attenuation in decibels. This marking is your guarantee if it suddenly turns out that the products cannot cope with noise within the decibels established by the manufacturer. Ideally, sound-absorbing pipes should dampen any vibrations, even infrasonic ones. However, these pipes have not yet become widely popular - high price scares off many potential buyers, and its service life is limited to 20 years.

The disadvantage of polyethylene foam is its fragility; a few years are enough for it to begin to limp and climb in different directions.

When the pipes are already installed, the polyethylene shells fade into the background - in such cases it is more convenient to use a material that can be wrapped around the pipes, for example, roll insulation Texound or filled vinyl Noise block. There are also options for soundproofing shells - two halves are folded into one whole covering, which allows you to quickly install sound insulation on already installed systems. With their help, sound insulation is also carried out. fan pipe– a special section of the pipeline responsible for connecting the closed system with the atmosphere, in other words, for ventilation.

Insulation process - do it yourself

Having decided on the material, we will deal directly with the soundproofing process itself. Simply wrapping the system elements with damping material is not enough; you also need to isolate them from vibration or at least take measures to dampen it. By building regulations pipes must pass through the ceilings in a special sleeve. An ordinary pipe of larger diameter can act as a sleeve. The resulting space between the sleeve and the sewer riser is filled with sound-insulating material and acoustic sealant, which dampens vibrations.

However, this simple procedure is performed in one out of ten cases. You can consider it a rare success to have at least the sleeve itself - you can fill it according to all the rules yourself. In most cases, the sewerage or heating system simply passes through the ceiling, in rigid contact with it. Because of this, vibrations from the ceiling are also transmitted to the pipes, so that the sound receives special force.

Our task is to reduce the contact of the pipeline with the ceiling as much as possible and isolate its surface. For this work you will need a hammer drill (or at least a hammer and chisel), cement, acoustic sealant and any soundproofing material that you have at your disposal. First, you need to go deeper into the ceiling around the riser - that's what you need a hammer drill for. The area around the riser must be freed from the “grip” of concrete by at least 10 cm in depth and 20 cm in width, so that there is room for maneuver.

Having made a recess, fill in soundproofing sealant around its perimeter, and then wrap the section of pipe near the ceiling with sound insulation. Use construction tape to secure the material. Then fill the base cement mortar and level it thoroughly. When the cement has set, you can continue wrapping the riser. Soundproofing is complete; for complete silence, all you have to do is soundproof the walls, floor and ceiling.

Soundproofing a heating system - use your wits!

If things are relatively simple with sewer and water pipes, then soundproofing heating pipes and radiators is much more difficult. You can’t wrap batteries with sound insulation, especially during the heating season! But it is through the heating pipes that the distinct voices of your neighbors will be heard to your apartment (and in the opposite direction too).

It's all about the lack of soundproofing gaskets between walls, ceilings and pipes. Sound waves travel through hard materials with ease. There are several options for solving the problem: replacing system elements with cast iron or modern plastic ones with mineral additives, soundproofing joints, laying soundproofing “cushions”.

The third option is the simplest, take a small piece wooden slats and a piece of rubber or vibration isolation type Texaunda and lay it between the wall and the elements of the system, so that the piece of wood is tightly stuck in the space. Several of these “spacers” will be able to partially dampen the sound. However, this is a temporary option.

Replacing pipes and batteries with cast iron ones is not a cheap option, but it’s a sure thing. For obvious reasons, most residents panel houses it won’t work; in this case, the only option left is to soundproof the joints, as we did with the sewer risers. That is, we remove part of the concrete or brick base around the pipes and fill this space with acoustic sealant, then close it small area pipes in the recess with soundproofing material and fill the remaining space with cement mortar or putty.

Today there is actual question: how to build soundproofing for sewer pipes in a residential area? This issue arose as a result of the appearance of plastic sewer pipes. 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 is 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 identify different causes 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 sound 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 on sound insulation cash. 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 processed chemical, 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 a partial replacement, you most likely do not need to carry out any other additional noise insulation work;
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 plastic riser installed? 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 the sewer riser, which is already installed, to carry it out, the glass is cut lengthwise and covered with it over the sewer component, then 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 is 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 of this material much more.

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. This is not a modern type of material that is used for soundproofing, 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. This choice includes 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 the 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 must 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.