Is there a concern about the rockwool or other insulation being breathed in? Are you not double covering the panels? I used white batting and then guilford of Maine for my first reflections. I can't see any insulation particles making its way through two layers of thick fabric. What is the concern here? Should I be concerned as my room probably has hundreds of pounds of insulation in here lol. The way I understand it, is unless the panels are disturbed or aren't covered, there is no real risk? I do like the fact that this isn't some synthetic stuff though made in a factory
Havelock Wool acoustic panels vs fiberglass/Rockwool
I have recently found a company offering sheep's wool rigid acoustic panels, (https://havelockwool.com) Havelock Wool Company, and am considering using them vs the the standard fiberglass/rockwool rigid panels for my DIY wall/ceiling absorbers for my new listening room.
The wool would seem to be safer at a casual glance and wool is supposed to be a superior sound absorber I believe. The cost is a little more, but it is not terribly more expensive.
I would be interested in others opinions on this approach.
Michael