Sound Insulation for Architects

   Türkçe terminoloji sözlüğü sayfanın altındadır.   

What is Sound?

To be able to understand the sound insulation materials, acoustic etc. firstly we need to know some basics about sound. Sound is a sensation of vibration of particles in gases, solids, or liquids. When someone yells, he starts the vibration of the air particles in front of his mouth, and that vibration is transmitted in all directions through the air, solids, and liquids. Sound is the sensation or the interpretation of the vibrations in our brain, so we can decide which sound is musical, which is noisy etc.

You can experiment the differencies on acoustic along different environments in the video below.


How We Characterise Different Sounds?

These vibrations has some parameters that enables the variety among all the different sounds. They are frequency, wave length, amplitude, and tone. Let’ s go through them.

Frequency depends on how often particles of the environment vibrates one another. (Hertz) Human are able to hear just the sounds that between 20-20000Hz.

Wavelength is the distance between two successive peaks of a wave. (Lambda)

Amplitude depends on how much energy spent by producing the sound. It is the distance between top and bottom points of a wave.

Tone is a parameter related with the source of sound.


Why We Need Sound Insulation?

To achieve a healthy environment, we need to manage the relationship between the sound sources and the receivers. We have to decide and design that who should hear what, so that, sound sources can spend less energy to be heard, ears will be healthy, and people will be happier. To achieve those, we need to consider sound absorption and sound insulation options for our space.

What is the Difference of Sound Insulation and Acoustic?

Well, if you don’ t want your neighbor to hear you, you need sound insulation; If you want your family to hear you clearly, you need acoustic protection. Besides this simplified example, sound insulation is about preventing sound penetration between different spaces, while acoustic is about better sound transmission between source and audience that are in the same space.


Something More About the Sound Insulation?

There are two kinds of sound wave that we don’ t want them penetrate to other spaces: Airborne Sound and Impact Sound.

  • Talking, Yelling, Singing, Shooting, Television, Radio are the examples for Airborne Sound. They are propagated by air. We need to use sound absorptive materials to prevent sound escaping to other spaces. These materials are soft, spongelike; so that, they are able to take nearly all the energy of sound waves.
  • Drilling a hole on wall and jumping on floor are the examples for Impact Sound. They are propagated by solids. We need to use some materials on floors to prevent impact sound. They are oftenly used between screed and reinforced concrete. Their compressive strength should be relatively high, because they will be installed on floors.

Let’s Go Through the Sound Insulation Materials

1. The ones that have being used both for sound and thermal insulation

  1. Rockwool
  2. Fiberglass
  3. Cork Board
  4. Polyurethane
  5. Melamine Foam
  6. Polyethylene Foam
  7. PolyStyrene Foams(XPS, EPS)

The above seven materials are explained in HERE.

8. Insulation Mats(İzobozz)

İzobozz Isolation


+Permeable to Moisture, Low water absorption value. That’ s mean, it throws out the unwanted moisture.

+Doesn’ t transmit flame.

+Easy to apply, easy to cut.

-Thaws at 260 celcius.

2. The ones that specifically designed as sound insulation or acoustic material


10.Acoustic Wood Panels

I really recommend you to CHECK THIS WEB-PAGE. They went through all the soundproofing options, and there is no need to saying the same things here.




Research Sources



Dictionary (English to Turkish)

Amplitude: Genlik Tone: Tını Airborne Sound: Hava Kaynaklı Ses Impact Sound: Darbe Kaynaklı Ses


Thanks for giving your time, If you have further questions or corrections or anything else, just leave a comment and I’ ll respond you soon.

You may also like...

Leave a Reply

Your email address will not be published. Required fields are marked *

Comment moderation is enabled. Your comment may take some time to appear.