What are the acoustical properties?
Open-cell spray foam insulation has excellent sound absorption properties and sound transmission properties. When comparing spray foam insulations produced by DEMILEC (USA) to other insulations, there is a very noteworthy difference. As an effective air seal, they eliminate the air gaps through which sound travels easiest. In addition to controlling all frequencies, they are superior in controlling mid-range frequencies that include the most common sounds – the human voice and stereo music.
