Quote Originally Posted by tikiroom
WashougalWonder,
I would be very interested in reading your ventilation how to.
I am planning on redoing my exhaust after this grow, hoping for better efficiency and noise reduction.
Many noise issues result from fan vibrations that rattle drywall, trim, etc. against wall studs and ceiling joists which in turn resonates throughout the house. When I built my room I used silicon on every stud, joist, etc. - anywhere two pieces of material touched. I also left dead space between the insulation and the ceiling drywall. It has paid off. My room is nearly silent, except for some exhaust noise which I deadened with a home made muffler.

I love fan issues. It was one of my biggest concerns. I'll tag along!