Sound Insulation

One of the common problems in today's societies is noise pollution. Today, sound insulation or sound insulation is used not only in industrial sectors, but also in administrative and domestic sectors, so that in developed countries, one of the property valuation criteria, in addition to its thermal insulation, is insulation. Its audio work is property.

Although this issue is seriously addressed in advanced and developed countries, unfortunately, it is not important in Iran, especially in the administrative and residential sectors, due to the control and reduction of some costs in construction operations and achieving For more benefit, many projects under construction or built in the country (especially in recent years) lack sound insulation and standard sound absorbers, which causes the sound to pass to the surroundings and affects the peace of people. will put itself In order to solve this problem, a covering called sound insulation should be used on the walls, ceiling, floor, etc., so that the transmitted sound to the surrounding environment can be significantly reduced.

What is sound insulation or sound insulation?

Sound insulation is a coating that is used to reduce sound and deal with transmission sound (reducing noise pollution) from one environment to another. STI's self-adhesive sound absorbing foam insulations, benefiting from the world's latest technology (Cell Closed), play an important role in reducing transmitted sounds to the surrounding environment. Sound insulators are the latest and most modern generation of sound absorbing insulators in the world (in industrial and construction uses for common walls, ceilings, floors, etc.) and are very desirable and efficient in terms of quality.

It is worth mentioning that in terms of sound absorption and reduction in the design and construction of buildings and structures, two very important issues are important, which are mentioned below:

A) How to absorb sound and transmitted sound (chosen sound insulation type)

b) Using the best materials in the construction of buildings (walls, roofs, floors, etc.)

Wall sound insulation

In general, the research conducted in the field of wall sound insulation or sound insulation indicates that the use of 2 to 5 cm thick sound insulation with modern technology is very effective in reducing sound transmission and with about 2% more cost in During construction, in addition to absorbing sound, the building can save more than 80% in energy consumption (preventing energy leakage from external walls). According to the research conducted by a European company, nearly 33% of people who are exposed to noise pollution in residential environments (noise pollution caused by people, neighbors, crowded parties and speakers in public places) suffer from stress and sleep disorders, which These disorders can last up to two years. 10% of all these people may have permanent and lifelong disorders. In the UK, 1.8 million people have complained about having a noisy neighbor, with nearly 7% suffering from permanent disturbances.

Common wall sound insulation

In order to reduce sounds such as talking, television and phone conversations, you should use "common wall sound insulation" of Saman Tahvieh Iranian Company in apartments, residential and office buildings.

This type of insulation is used for residential or office purposes and reduces the sounds that are in conflict with the culture of apartment living and is considered a very suitable alternative to traditional insulation. It is worth mentioning that the STI company's "common wall sound insulation" is in the form of a roll and is cut to the desired size using scissors and a cutter, and it is installed and implemented on the surfaces without the need for glue.

What is the right solution for sound insulation of common walls?

In order to sound-insulate a common wall between two units, you should use STI adhesive sound insulators with a thickness of 2 to 5 cm. In this way, we first install a 2 or 2.5 cm thick sound absorbent insulation layer vertically on the wall, and if needed, apply the next layer (second layer) horizontally on the first layer. After finishing the insulation operation, in order to have a beautiful and appropriate appearance, as well as to raise the quality level of the work (to control the sound more) and to protect the insulation against mechanical and everyday blows, a protective layer such as; He used thick external wall paper (the latest offer of the company), wall covering, plaster panel, wood, plaster and dirt, etc. The above method is the best suggestion to reduce the transmitted sound to the environment until today.

Sound absorption insulation (sound insulation, sound foam wall and acoustic sound deadening insulation) of STI company is available with a smooth double-sided structure from 6 to 50 mm thick and can be provided in two types: simple and adhesive back. For example, the; If you have a common wall with the adjacent environment, in order to make that environment acoustic, you should use two layers of adhesive sound insulation, the thickness of each of which is 20 mm (4 cm). Install and run the first layer vertically and the second layer horizontally on the surface of the wall to significantly reduce the sound transmitted to your environment. After installing and implementing sound insulation with STI double-sided smooth structure on the desired wall, a protective layer can also be used on the surface of the insulation in order to have a more suitable and beautiful appearance and to improve the quality of the executive work. It is worth mentioning that the above method is also used to make the ceiling acoustic.

Types of covers and protective layers for installation and implementation on sound insulation are:

Forming a new wall (rabbits with plaster and soil)
Gypsum panel
Kenaf (ready tiles 1*2)
wall covering (in various colors and designs)
Composite sheet
Wood and MDF and..

It is obvious that if the sound insulation (sound insulation - sound foam insulation) chosen by that respected customer has a greater thickness, it has a higher sound absorption and prevents vibration and sound reflection to a significant extent.

Sound insulation foam and soundproof acoustic foam insulation with double-sided smooth structure and egg comb structure is a very suitable alternative to traditional and old glass wool, stone wool and unolite insulation and it can be easily applied on any smooth surface. Polished installed and executed.

The insulating tapes of STI company are used to seal windows, doors and reduce the sound inside the environment, which can be provided in various dimensions and sizes, and its material is the same as sound insulation material or sound foam.

It is worth mentioning that the sound absorbing insulators of STI company (sound panel) can be cut to desired dimensions and sizes and they can be cut easily with a simple tool such as a cutter or scissors.

In general, egg-shaped sound insulation, smooth double-sided sound insulation, and polyurethane sound panels are the best options and solutions to reduce sound, vibration, and sound reflection, and are used in most European, American, and Asian countries today. take

Egg-shaped, double-sided sound insulation and PU soundproof foams are very flexible and can be installed and implemented easily and according to any executive plan.

Types of sound insulation (sound insulation foam)

1) sound insulation with a hexagonal egg comb structure:

For use on walls, ceilings, rooms and boxes.

2) sound insulation with smooth double-sided structure (plain and adhesive back):
To be used for common walls, floors, ceilings, etc.

3) Polyurethane sound panels:
To be used for the blade of walls and common surfaces.

4) PU sound insulation (plain and adhesive back):
For use on walls, ceilings and floors.

5) White sound foam made of polyethylene:
To use for walls, ceiling and floor.

6) Tubular sound insulation (to be used for pipes):
To be used for all pipes (consumable water pipes, sewage pipes, etc.)

It is worth mentioning that the dimensions and sizes of STI sound insulators are different according to the chosen thickness and each of the sound absorbing insulators are made and produced for a specific purpose. For example, the; In order to prevent the sound of the car engine from entering the body, insulation with a thickness of 10 or 13 mm should be used, and in order to isolate the sound of the elevator chamber and pit, higher thicknesses should be considered to achieve better results. found

STI company's sound insulation or sound panel (all 6 insulation items mentioned above) have valid domestic and foreign certificates, including: Ministry of Roads and Urban Development, General Directorate of Standards, Razi Metallurgy, Oil Industry Research Institute, UK GB, American ASTM, manufacturer, etc., which shows the quality of STI products compared to other sound insulations available in the market.

It is worth mentioning that all the sound insulations (sound absorbing foams and super sound insulation) of this company (all 6 items) are a very suitable and desirable replacement for traditional and old glass wool and stone wool insulations, each of which has unique advantages and characteristics. They are individual.

Other names of sound insulation include the following:

Sound insulation or soundproof foam

Wall acoustic foam insulation

Floor sound foam insulation - floor sound insulation

Sound absorbing insulation - sound insulation

Acoustic foam and sound insulation and...

Sound transmission mechanisms

There are usually two types of sound transmission mechanisms:

1- Airborne
2- Impact
In the airborne mechanism, noise pollution is transmitted directly through the air from the sound source, such as the noise of cars on the street, mechanical equipment, ventilation systems, and the home theater system of the adjacent neighbor

.
In the impact mechanism, noise pollution is transmitted from inside the structure itself, such as the sound of people walking in overhead units, hitting the adjacent wall or closing the door.
The impact sound transmission mechanism is also called Structure Borne Sound.
To perform sound insulation, all sound transmission mechanisms should be considered. Doors, windows, vents and common walls should be insulated to prevent environmental noise pollution and the building components themselves should also have sound insulation layers.