Concrete and brick interior walls are distinguished by good soundproofing characteristics, depending on the weight of the building. But these designs have serious drawbacks - first of all, this is the mass that puts pressure on the floors. In addition, another drawback is the significant thickness. Today, frame partitions made of metal or wood, sheathed with drywall, are often equipped. But it is necessary to make soundproofing of drywall partitions. Partitions with sound-absorbing material inside are capable of absorbing air and structural sound. Drywall is capable of absorbing noise. Let's look at how such partitions are isolated.
Definitions
Sound insulation - these are two components. The first is a direct decrease in sound pressure when a wave passes through a drywall partition. The indicator in this case is integrated. It combines the effectiveness of airborne noise reduction and impact noise. Sound is measured in decibels.
The second component is sound absorption. This concept means a decrease in the energy of a sound wave when it is in contact with the surface of the partition. Absorption can be realized by converting sound energy into mechanical or thermal energy. The sound absorption coefficient of various materials can be in the range from 0 to 1. The higher this coefficient is, the greater the potential for reducing noise is a particular design.
As you can see, the simple process of noise isolation of drywall partitions has a number of nuances. To successfully solve the problem, you need to work with sound insulation and sound-absorbing materials. This problem can only be solved using an integrated approach.
A complex approach
The main source of noise is the external environment. If the room has a window that faces the street, then the bulk of the unpleasant sounds will be heard in the room from there. To reduce the noise level that comes from the side of the road or yard, a double-glazed window is installed. Also regulate fittings.
Next, you need to think about a special sound-absorbing finish of the main walls in the room - both internal and external walls should be processed . There are several technologies for this. These are multilayer stucco complexes and giprok.
Also, do not forget that a sufficiently large proportion of noise comes from neighbors living below or above. This means that you need to take measures for sound insulation both for the ceiling and for the floor.
There is one more nuance. You can not only suffer from noise, but also create them. Therefore, when planning to make comprehensive soundproofing of drywall partitions, you need to think about protecting the environment from noise from the apartment. This is especially true for fans to listen to loud music.
In order to ensure sound comfort in the rooms, false walls alone will not be enough. Various materials are required. Consider the basic materials and installation technologies for the most efficient structures. What sound insulation to choose for a plasterboard partition? Choose based on cost and desired effect.
Acoustic drywall from Knauf
These are acoustic plasterboard panels, which are perforated sheets. Perforation can reduce the volume of reflected sounds due to the large number of sound-absorbing surfaces.
A special non-woven white or black cloth is pasted on the inside of the panel. This canvas limits the propagation of sound within the partition. Soundproofing is added to soundproofing.
This material for soundproofing drywall partitions can be used both for external processing of walls and ceilings, and for installation inside a partition. The surface allows you to finish these sheets in different ways. This is one of the most popular and economical materials.
Materials to fill
Membranes are a thin cloth that most often comes in the form of rolls. Such membranes are based on a special polymer web coated on top with a layer of felt fibers. The thickness of the product can vary from 2.5 to 12 millimeters. This allows noiselessness even of thin partitions.
This material for soundproofing drywall partitions serves as a sound barrier. The membrane prevents the passage of sound full. Spraying from felt fibers on the surface enhances the noise absorption effect.
The most popular membranes in the domestic building materials market are Tecsound products.
Porous materials
It is an alternative to membranes. Sometimes they are used as a supplement to the latter. Porous materials due to their structure provide effective noise absorption. Through the use of these products, the sound insulation level is significantly increased.
Among the most popular porous materials are Knauf Insulation and Rockwool mats.
The first material is a fiberglass based board. The product is quite expensive, but very effective. An interior partition made of drywall with sound insulation from such a plate will be very good. The room is perfectly isolated from loud noises, the stoves do not get wet, do not burn and do not rot.
The second option is a stone wool product. The plate has a homogeneous structure and provides dispersion of sound waves and compensation of their energies. The stove is completely safe for humans, does not burn, does not rot.
Choosing what is best for soundproofing drywall partitions, do not forget about mineral wool. It can be used instead of the above plates. Various brands supply similar products, you need to choose the product that is focused specifically on sound insulation.
Along with these materials, polyester as well as polyurethane foam panels are commercially available. These products can be successfully used to fill cavities in drywall made of drywall. But first, it is better to carefully study the characteristics. Certain substances may not be recommended for living quarters due to the risk of fires.
You can also apply traditional foam. He is the most affordable. But his efficiency is almost zero.
Sprayable soundproof coatings
These solutions are widely used in the modern construction industry. They can be safely used in the installation of soundproofed interior partitions.
It is based on cellulose fiber impregnated with an adhesive. The mixture is applied to the treated surface by spraying technology. This requires specialized installations. Using equipment, you can adjust the thickness of the layer.
One example of such mixtures is the composition of Sonaspray. Where is it used? It is intended for walls, ceilings, and also partitions.
Sound insulation installation
Let's look at how to make soundproofing of drywall partitions. Technologies are similar to the construction of an ordinary false wall, but there are certain nuances that must be taken into account.
Frame
Work begins with markup. So, this applies to the wall, floor and ceiling. For accurate marking for the future partition, it is better to use the laser level. It projects a coordinate grid onto the surface.
Focusing on the markup and measurements, the details of the frame are cut out. A wooden beam in terms of sound insulation will be more advantageous, but it is more convenient to use a metal profile.
On the ceiling, as well as on the floor, the starting profile is fixed. An elastic material is laid between the metal and the floor to reduce impact noise. If necessary, suspensions are used "Vibrofix", "Vibroflex". The polymer insert in such suspensions will provide sound insulation in the connection.
For fastening, not a standard dowel with a sleeve of metal or plastic is used, but a special polymer fastener. The same principle works here as in suspensions.
The guide profile is fixed with self-tapping bugs. Between the walls of the start and guide profile, it is recommended to put polymer gaskets. All cracks are treated with sealants, this will reduce vibration noise.
A wooden beam is laid in the side profile and securely fixed with self-tapping screws.
Sheathing and filling
Between the elements of the resulting frame, soundproofing material is laid. To make it convenient to work, on one side the frame is sutured with drywall. Then mineral wool or other material will not fall out. What sound insulation is best for drywall partitions, everyone chooses for himself - at cost and efficiency.
To increase the soundproofing coefficients, it is necessary to sheathe drywall crate with a sheet of drywall, the thickness of which is 12.5 millimeters. Then fasten with screws. Then, communications are laid inside. The wiring is laid in plastic casings, and polyurethane covers are put on the pipes.
Further soundproof mats are placed without voids between them. A membrane is mounted on top of the mats. If the latter is not applied, then between the profile and the casing put a porous tape. Then the frame is sheathed with sheets of drywall. On this installation of interior partitions made of drywall with sound insulation can be considered completed.