FAQ
What perforation type gives the best sound absorption?
“The best sound absorption” is determined by the purpose of the room or the goal of the acoustic environment. If the goal is to absorb low frequency sound – bass absorption – a relatively low perforation percentage of up to 10% is to be preferred.
If, however, broad-band absorption across the frequency range is the goal, the most suitable products would be the ones with a perforation percentage between 10 and 20%.
In case of high frequency absorption, the products to be chosen are the ones with a perforation percentage above 20%.
However, it is important to note that perforation percentage is not the only criteria determining the absorption level. Installation depth and the acoustic backing may have considerable impact on the absorbing properties of a specific perforation type.
If, however, broad-band absorption across the frequency range is the goal, the most suitable products would be the ones with a perforation percentage between 10 and 20%.
In case of high frequency absorption, the products to be chosen are the ones with a perforation percentage above 20%.
However, it is important to note that perforation percentage is not the only criteria determining the absorption level. Installation depth and the acoustic backing may have considerable impact on the absorbing properties of a specific perforation type.
Do perforated gypsum ceilings absorb sound just as good as mineral wool ceilings?
Perforated gypsum tiles can be designed to absorb in the same way as most other absorber types, including porous absorbers such as mineral wool ceilings. Installation depth, perforation type and acoustic backing are the methods of adjusting a given sound absorption profile.
In addition, perforated gypsum products are able to diffuse sound, especially in rooms where the products are placed both on walls and ceiling. In these cases, a perforated gypsum product, measured to have a lower absorption coefficient that a porous absorber, has proven to be just as effective as the porous absorber with a high absorption coefficient.
In addition, perforated gypsum products are able to diffuse sound, especially in rooms where the products are placed both on walls and ceiling. In these cases, a perforated gypsum product, measured to have a lower absorption coefficient that a porous absorber, has proven to be just as effective as the porous absorber with a high absorption coefficient.
