Sound Insulation is the ability of building elements or structures to reduce sound transmission
To compare sound insulation properties you need to take into account the area of the dividing partition/wall, as well as the volume and sound absorption properties of the receiving room. To do this, measurements are Normalized to a Reference Absorption value or Standardized Reverberation Time.
Among all energy efficiency technologies, advanced Sound insulation stands out as the one that could reduce energy consumption most effectively. For a good insulation with 95% of air and low solid content, the processing cost becomes the dominant factor in the performances /cost equation. Installation of Sound insulation is indeed a sound investment because of the immediate payback from energy savings and especially if we can keep the cost low. Lower insulation costs, combined with rising energy expenses, would automatically expand the efforts in energy efficiency.