Fan noise, sound proofing

[cmasfca]

Wow. Sound is vibrations. Dynamat WILL cure your noisy fan.

QFT

EDIT: Oops, didn't see how old this thread was:wtf:

cmasfca Reviewed by cmasfca on 06-06-2009. Fan noise, sound proofing Has any one used heat/ac duct as wall covering, you know the kind that folds up into those square ducts? Mylar on one side yellow fiberglass insulation on the other about 1" thick. My grow room is completely sealed up from the rest of my house secret door etc. I do get some smell I think from opening the door. But,y problem is noise, odd fan like noise coming from a wall in the bathroom, can't hear it over the bathroom fan but when it's not on there is noticeable noise from the room. I Rating: 5