Noise isolation of the Chinese front door. Options for improving the sound insulation of metal entrance doors

  • 29.08.2019

Any front door should protect the room from unwanted guests and intrusions. In addition, it should be an excellent protection from the cold and various noises that can be heard from the entrance or from the street. Also, high-quality sound insulation will allow you to leave all the conversations of the family in the room, and none of the people passing by the apartment or house will hear a single word. Modern products already have high technical qualities, but sometimes it becomes necessary to increase them. Do-it-yourself soundproofing doors is a process that can be easily performed. For this you should use modern materials that will meet all the requirements.

A high-quality front door should protect not only from the entry of unwanted guests, but also from street noise.

Main characteristics

Today, the market for entrance and interior doors is represented by a fairly large the lineup. Among all the options there are models that have very high heat and sound insulation characteristics. It should be noted right away that such products will cost much more. As for the cheaper options, then, accordingly, the technical qualities are reduced.

If you want to install the cheapest and most practical option, use steel sheet, along the perimeter of which a corner is welded. In order to make the structure more durable, additional stiffeners are installed. Noise isolation of such a product must be performed. Soundproofing a room can be done in several ways:

  1. Insulation front door.
  2. Arrangement of a small vestibule - installation of a second door leaf.
  3. Combined method, which involves the use of the two previous options.

Two latest version require additional labor costs and financial expenses. Therefore, the best option would be to insulate the first door leaf.

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For sound insulation, it is worth using modern sound-absorbing materials, which are presented today in a huge assortment. A significant increase in the volume of the canvas allows you to save more heat in the room. Performing such work, you can completely change the appearance of the door. It depends on personal preference and the chosen insulators.

The first thing the work begins with is the removal of the upholstery from the canvas. This is acceptable if the door has a frame sheathed with fiberboard sheets covered with a decorative layer - leatherette or laminated film. If the product is metal, then it is worth disassembling the structure, while it is very important to control that the cutting place is very accurate, since in the future it will be necessary to connect the elements by welding.

First, it is worth checking the parameters of the frame and its geometry. In order to make the product more reliable and durable, additional stiffeners can be installed inside the structure. The entire interior area must be treated with a degreasing agent, such as acetone. Be sure to wear protective gloves when working with it.

As a heat insulator, you can use mounting foam, with which the internal void of the structure is filled.

Mounting foam is used to seal gaps that form during installation. As for sound insulation using this material, it will be quite low. Noise insulation of the canvas can be made using bituminous self-adhesive insulators. Among them, it is worth noting self-adhesive vibration isolators - bimast, vizomat, or self-adhesive noise insulators - vibroplast, splen. In order to perform high-quality insulation, you need to use three layers of each of the two types of insulator.

In order to cut vibration and sound insulation, you will need a regular construction knife or large scissors. It is also worth using a tape measure, a ruler and a pencil or crayon for basting. Sometimes, for better adhesion, it is recommended to use an additional adhesive composition.

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Adhesive soundproofing material

After the surface is degreased, it is necessary to give it time to dry completely and only then proceed with gluing the materials. The first layer is to lay bituminous vibration isolation. Such material is a fairly heavy sheet with a sealant - glue. Such material can be glued in two layers. On top of it, it is necessary to lay several layers of sound insulation. This material is lighter and looks like thin foam rubber.

The installation of such material must be carried out in strips, the process resembles wallpapering on the wall. protective film, which protects the adhesive layer, does not need to be torn off immediately, its removal is carried out gradually, in the process of gluing to the door. At the same time, it is necessary to smooth the surface so that there are no air spaces left. It is very important to overlap each layer. To do this, all strips must be glued in a checkerboard pattern so that each joint is covered with a new strip of sound insulation. In order to remove the remnants of the material, you must use a regular knife.

It is recommended to glue such materials in the warm season, when the air temperature exceeds + 20 ° С and even + 25 ° С. If the procedure is carried out in winter time, it is necessary to warm up the surface metal door fan heater.

When laying insulating materials, care must be taken in the places of the locking systems, access to them must not be blocked, and after completion of the work, the entire system should work without difficulty.

The issue of sound and heat insulation is best addressed by early stage when it is only planned to purchase and install new door. As a rule, entrance doors from foreign manufacturers already immediately have a soundproof filling. However, many buyers prefer a domestic manufacturer. Handicraft doors are also common today. Therefore, we will consider the urgent question: how to make a door soundproofing in an apartment with your own hands? The article gives step by step instructions, from the choice of materials to the photo of the result. To help the master - video instructions.

We achieve good sound insulation: what should be the door?

To give the door soundproof properties, manufacturers use bulk, hard and soft materials. Very often, the manufacturer saves on material, which subsequently affects the quality of these same properties. Therefore, if you decide to give the front door additional qualities with your own hands, then this will be the right and economical decision. It is only necessary to choose the right material and do not the most difficult work with the help of improvised tools.

Attention! It is important to choose the right soundproofing material. For example, soft materials settle over time, which affects appearance doors. Solid materials are not suitable in all cases.

From the point of view of sound insulation, according to its design, the best entrance door is considered to be a canvas of a multilayer structure. In some cases, a door made from the same material increases the noise level in the room. It is worth remembering that the metal in its physical properties is a good conductor of sound. Therefore, a completely justified solution would be to install an entrance metal door made according to the principle of sandwich panels. This technology implies the inclusion of a metal door in a special soundproof layer.

The most practical materials for soundproofing

Few people today install a front door with the outside of the door frame. This method allows, if necessary, to increase the level of sound insulation, to organize a small vestibule. There is no need to remove the door, just install an additional door leaf, which will form an air space with the front door. It is this air gap that will provide sound insulation of a fairly good level.

If already installed door does not allow organizing a vestibule, then the method with the formation of airspace will not justify itself. It will be necessary to remove the door, take out the box. This method not the easiest and easiest.

Acoustic foam rubber is an excellent budget material for soundproofing a door

A reasonable solution would be to insulate the door with one of the following materials:

  • polystyrene - the material has proven itself well. It has excellent soundproofing properties. Does not let the cold into the room;
  • synthetic winterizer is a soft material, but quite stable. It is relatively cheap, but requires a dense layer;
  • foam rubber is a budget soundproofing material. Suitable for sealing joints, sheathing fabric;
  • mineral wool is a soft material, most often shrinks over time, accumulates moisture, so it is most reasonable to use cotton wool to insulate cracks;
  • foam - most often found in sheets. Differs in average sound-proof properties.

All materials are intended primarily for the internal filling of the canvas.

Soundproofing front door with fixed paneling

There are two ways to increase the sound insulation of a door with a fixed door leaf trim:

  1. Upholster the canvas with synthetic winterizer, polystyrene foam, polystyrene.
  2. Glue bituminous vibration and noise insulators.

At the first stage, it is necessary to degrease the entire surface of the door leaf with acetone. You can use another solvent, as long as the surface is clean and fat-free. After the canvas has dried, you can proceed directly to gluing. First of all, a sheet of vibration isolator is glued to the metal, and noise insulation is glued on top. It is recommended that the sheets overlap each other during gluing.

Attention! This method requires some nuances. Temperature environment should be at least + 25C, work should be done in the warm season.

At the end, the door leaf can be pasted over with artificial leather to give an aesthetic appearance.

The greater the thickness of the soundproofing layer, the better and higher the quality of sound insulation will be. A steel door, as a rule, is upholstered with artificial leather, sometimes foam or synthetic winterizer will be used. The cladding is fastened with special nails and glue. Today, the method of upholstery of the front door with non-removable sheathing using fiberboard and MDF is gaining popularity. This method involves more complex work.

First of all, it creates wooden frame from slats 20 mm, after which the structure is attached to the steel door. The resulting cracks are sealed with a heater. On top of the frame, fiberboard, MFD panels are attached.

Attention! This method of sheathing significantly increases the weight of the door. It is important to make sure that additional hinges are pre-installed.

Soundproofing front door with removable lining

To install the soundproofing of the front door, it is best to arm yourself with the following tool:

  • wood saw;
  • electric drill;
  • hammer, scissors, knife;
  • silicone sealant;
  • glue, fixing materials.

A decorative panel is removed from the door with a removable lining, after which the space is filled with mineral wool or other material. Removable inner a metal sheet, if present, and the cavity is filled with soundproofing material, which is fixed with glue.

Advice. The gaps between the inner sheet and the frame are best sealed with sealant.

But how to mount the material, if inner sheet No? In this case, a frame is preliminarily created, which is mounted inside the front door. The insulation material is carefully laid, the internal cavity is sewn up with plywood. At the final stage, a peephole, elements of door fittings are installed.

Noise isolation of the interior door of the apartment

Many people like to have silence in all rooms, and in large families this is sometimes a necessity. Therefore, it is worth saying a few words about the soundproofing of doors inside the apartment. To prevent noise from penetrating into the room, it is necessary to install a special threshold that is combined with a closed canvas. It is desirable to glue the box with a rubber seal. In some cases, the door is sheathed with panels.

If silence in a certain room is a priority, then it is best to immediately install a solid door. Pay attention to the position of the door leaf, often due to distortions there are gaps that let noise into the room.

Improve the sound insulation of the entrance or interior door apartments today is not a big deal. Enough to have everything essential tool, select quality material. Today in the construction market you can find a lot of worthy soundproofing materials that will allow you to enjoy the silence at any time of the day and under any conditions.

First you need to remove all external fittings - a handle, a peephole, a lock.

If possible, for convenience, the door leaf must be removed from the box and placed on a horizontal surface.

Since the sound insulation of the entrance metal door of a collapsible and non-collapsible design differs in the way it is finalized, you first need to determine the type of construction.

folding door

If there's decorative elements, fastened with nails, screws or rivets, carefully remove the fasteners, remove the decorative elements and the rear metal sheet.

Tightly fill the internal cavity first with bitumen-based vibration damping elements (gerlen, liplent), and then with noise insulators, such as expanded polystyrene or mineral mats.

Install and secure the removed sheet of metal and decorative panel.

Non-collapsible entrance group

If we are dealing with a non-separable structure made of thick metal, then the sound insulation is done differently.

On the door leaf metal profile or wooden slats, by welding or self-tapping screws, we mount the frame for the installation of soundproofing insulating materials.

We fill the mounted frame with materials similar to a collapsible structure and close it with a sheet of fiberboard or MDF.

Finalization of the canvas for sound insulation

It is the process of installing or replacing special noise and vibration-absorbing materials on the door leaf. You don't need any special tools to soundproof your doors. The following set will suffice for this:

  1. cordless screwdriver or Phillips screwdriver;
  2. electric drill with a minimum set of drills;
  3. knife, scissors and hand saw;
  4. all-purpose glue, countersunk screws, wallpaper nails or construction stapler;
  5. ruler or tape measure.

Noise isolation is simple, it takes little time, everyone can refine the design on their own.

Internal filling with insulating materials

Soundproofing of entrance metal doors is carried out different materials. When choosing the internal filling of the door leaf, one should take into account the ease of installation, the level of required sound absorption, operational properties, fire safety requirements. Layers of soundproofing materials may include:

  • Styrofoam sheets or granules. A common material with average characteristics and an affordable price. Flammable, releases toxic fumes when heated.
  • Expanded polystyrene. It can be sheet, granular or in the form of a special coating. Well protects from noise, cold and vibrations.


  • Plates from mineral wool. A good insulating material with high performance and fire-fighting properties. Requires additional fixing, as it gradually dries out and loses its geometric shape.


What finishing material to choose

The finished metal door leaf for additional sound insulation can be trimmed with leatherette lined with foam rubber, isolon or synthetic winterizer. Can be sheathed wooden lath, eurolining, plywood or fiberboard. Tree - eco-friendly material, but requires additional processing to protect against fire and extend the service life.


You can use laminated panels or MDF panels. These materials are beautiful and have high performance. They can be used to finish the front and interior doors, silence will be ensured.

Sealing the opening of a metal door

For high-quality sound insulation, a tight fit of the door block around the entire perimeter of the box is required. For this, special sealing strips made of isolon, foam rubber or rubber on a self-adhesive basis are used.

Before installing them, you need to measure the length of the door perimeter, then prepare the seal of the desired length, remove the protective layer from the adhesive surface, press and smooth.

Troubleshooting and sealing

We check the quality and correctness of the installation of the door frame, for this we dismantle the platband. If voids are found under it, we fill it with siliconized mounting foam or mineral filler. Otherwise, high-quality sound insulation will not be achieved, because the hole in the wall will, like a mouthpiece, amplify all sounds.

We put plaster on the wall and install platbands. Soundproofing work completed.

Soundproofing the front door is one of the main tasks that must be completed at the stage of its installation. In extreme cases, you can update it after some time, especially since the seals tend to settle and wear out. Consider how to perform such work in order to achieve maximum effect, but at the same time not worsen the appearance of the opening.

Soundproofing a door can be done in several ways.

Insulating materials

Ideally, the soundproofing of an entrance metal door should be provided at the stage of its purchase, otherwise you will have to do everything yourself. In addition, some manufacturers save on the internal filling of the canvases and eventually have to improve the design on their own.

To equip the soundproofing of the canvas, soft, bulk and hard materials can be used, which in parallel act as a heater.

Over time, soft materials can settle, which will affect not only the soundproofing qualities, but also the appearance of the door, if we are talking about the outer skin. Bulk options are not suitable in every case.

To insulate the door with your own hands, you can use the following materials:

  • Polystyrene. An excellent noise and cold resistant material that can be used in the form of granules, finished sheets or applied to the surface by spraying a liquid mixture.
  • Sintepon. Soft material, quite wear-resistant, has a low cost. High-quality sound insulation requires a dense layer.
  • Foam rubber. Cheap and affordable option. It can be used for sheathing the canvas, its internal filling and sealing joints.
  • Izolon. Improved analogue of foam rubber. Higher density and the best performance but costs more.
  • Mineral wool. The soft material, widely used for sealing cracks and joints, can shrink over time, accumulate moisture, but resists rot and insects very well.
  • Styrofoam. It is mainly used in the form of sheets, but can also be produced in the form of granules. Available material with average quality.

Varieties of materials used for soundproofing doors

Panels

If the previous materials are intended primarily for the internal filling of the door leaf or, in extreme cases, for making soft sheathing, for exterior finish panels are more popular. They are attached directly to the canvas itself and, in addition to sound and heat insulation, also perform a decorative function.

Since everyone can soundproof the front door in this way today, the main categories of overlay panels should be distinguished:

  • lining;
  • laminate;
  • dermantin.

Panel options for door soundproofing

You can fix the panels with your own hands directly on the canvas with glue or on a specially equipped frame. For greater effect, you can combine the inner and outer seal.

Additionally, to ensure sound insulation of the doorway, you need to take care of sealing the joints around the perimeter of the fit of the door. For this, special adhesive-based sealant strips are used, thanks to which it is very easy to do the installation yourself. They can be made from different materials:

  • Rubber. Such seals are available in the form of strips or hollow tubes, they can be single, double, etc.
  • Foam rubber. Soft stripes, often yellow or orange.
  • Izolon. Lighter-looking strips are more dense and durable.

In addition, it is necessary to insulate the threshold and door frame at the stage of installation of slopes. To do this, you can use one of the soft insulation as a substrate, as well as mounting foam to eliminate gaps in hard-to-reach places.

Joints are sealed to improve the sound insulation of the doorway

Soundproofing a metal door

Most often, people are faced with the need for soundproofing the front metal door. You can do it yourself in several ways:

  • Internal filling. The canvas is opened and sheet fillers are placed in the voids between the stiffening ribs. Joints are filled with mounting foam.
  • External cladding. The canvas is pasted over with a substrate, sheets are laid on top soft material, rollers are attached to the sides, and the door is upholstered with dermantine on top.
  • External pads. Panels are measured right size and with the help liquid nails attached to a metal door.
  • Box. The platbands and dobors are removed, worn out polyurethane foam cleaned and replaced with fresh. All cracks are sealed with soft seals. Top recommended . Then all the elements are installed in place.
  • Joint sealing. A rubber seal is glued around the perimeter of the box to finally soundproof the opening.

Soundproofing a metal door is possible in several ways.

An alternative option is to create a vestibule at the entrance or arrange. It is important that the directions of their plowing are different.

Interior doors

Soundproofing an interior door is done by hand in a slightly different way. It is important here to ensure the sealing of the joints, since the canvas is mostly not subject to serious modifications. In order to prevent the penetration of noise into the room, it is necessary, which will be combined with a closed canvas.

A rubber seal must be glued around the perimeter of the box. It is necessary to select its thickness depending on the size of the gaps along the edges of the door. If this is not enough, you can sheathe the door with panels. It's best to buy whole MDF door, since hollow models transmit noise, and it is very difficult to improve them.

If, over time, soundproofing materials wear out, you need to update them, having previously removed the old ones, if possible. Pay special attention to the position of the canvas, as sometimes gaps can form due to distortions, as a result of which the sound insulation will be impaired.