Re: Building a closet for dust collector
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Acoustic engineers sometimes cite water as a metaphor for sound to make the point that is leaks through the smallest and most permeable points.? An elaborate wall assembly can be rendered nearly useless by small details, like door seals, wall-to-ceiling joints, ceiling transmission pathways, etc.? If you want to get more thorough i your research than just the STC ratings of walls, there's tons of discussions on home recording studio forums.??
Also note that sound mitigation methods are?highly sensitive to frequency.? The STC rating is for speech frequencies.? As it says on the STC website you mention:
"The STC rating is based on performance with frequencies from 125 to 4000 Hertz (the speech frequencies). The rating provides no evaluation of the barrier's ability to block low frequency noise, such as the bass in music or the noise of some mechanical equipment"??
I originally put my cyclone in a cabinet somewhat like what you describe -- double drywall, green glues, etc.? After a move, I delayed re-building it and ultimately never got around to it.? The benefits didn't seem worth the effort.? I only use the cyclone when machines are running, and most machines are louder than the cyclone, and silencing the cyclone is pointless in this situation.?
I¡¯m managing a remodel project just now where I¡¯ve specified the?KINETICS?IsoMax system between bedrooms, media room, ceilings, etc. ? This is basically putting the equivalent of a metal stud horizontally over the wood studded wall, and the horizontal metal drywall hanger is itself attached to the stud with a rubber-isolating clip. ? I wonder how this will compare to your alternatives. ? ??
Hi all, the journey of building out the new shop continues.? I am now planning a closet to house the cyclone dust collector.? Being an engineer, I have to research everything.? I found a fantastic website with data on different wall construction and the STC (sound transmission coeff) for each.
I had been planning to do 2x6 plates and staggered 2x4 studs.? From the data at the site I was surprised at a couple of things.? First, steel studs are meaningfully better the wood studs.? Second if building two walls, having drywall only on the two exterior sides is better than having drywall sides of the studs facing inside the double wall.?? I have decided to do double steel stud walls with 2 1/2" steel studs.? I think I want 20 gauge and not the cheaper 25 gauge. any input on that? I will install 5/8" drywall inside, a layer of green glue, and a second layer of 5/8" drywall over that and then 5/8" drywall outside. If not quiet enough I will install green glue and a second layer of 5/8" drywall outside.
I need a door to access the drum and a door to access the filters.? I am fairly certain I will do some sort of stress skin construction for the doors.
Any suggestions on how to get the dust inlet sealed to the sound proof wall?? I am doing a folded duct with 5X the cross sectional area of the exhaust port for flow the air conditioned air back into the room.
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