Reply To: Quiet mortising
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Hi Paul
As usual Larry’s advice on the other thread is really good, with documents and everything.
As I understand it, glass-wool will only reduce the resonance withing the room (i.e. the time that the sound bounces around the room). I dont think it will reduce room-to-room transmission all that well as it is low mass. Also some types of glass-wool have fibres that are really bad for your lungs. If you are committed enough to add to the basement, it’s worth mentioning that you can get stud/partion wall and ceiling systems that are rated by the manufacturers for sound-drop.