So I am redoing a ceiling with the goal of sound proofing in mind. I can do a good job sound proofing, but the duct work seems to prove a problem as all around it will be my nice sound proofing while the ducts are just pieces of metal (which carry vibration and noise easily)
At the moment the duct work is in pretty sorry shape so some new stuff is of order.
I have heard insulated flex duct can be good at stopping vibrations and noise. IT also seems to have the advantage of being insulated (saves money)
I have heard from duct workers that they would rather have rigid duct with insulation around it. because
-smoother surface allows for better airflow
-less likely to get damaged over time
What do you guys think?
I was thinking of going by this websites advice for sound proofing the ceiling How to Soundproof a Ceiling - Soundproofing Products for Ceilings
except maybe having less layers of drywall and more insulation? (mineral wool)
How many layers should I do if I am having a drumset and large PA speakers in the basement if I want it to be sound proof (or close to)???