Maybe they just did a poor job of installing, I really doubt that the foam could bulge 2x4 studs.
Strong bass causing buzzing behind the wall
I've got a spot in my new listening room (in the basement) where there is a drywall wrap around some hvac ducting along one of the side walls at the ceiling. The drywall is installed over thin aluminum framing. When I play music with strong bass (e.g. Jennifer Warnes "Way Down Deep"), I can hear buzzing in the wall. I set up REW to generate a sine wave around 50Hz and I can easily cause the buzzing.
The good news is that pushing on the drywall in a particular place will cause the buzzing to stop. So I'm trying to figure out the best way to fix this. I was thinking of drilling a small hole and spraying some expanding foam insulation. Something like this:
https://www.homedepot.com/p/GREAT-STUFF-16-oz-Big-Gap-Filler-Insulating-Foam-Sealant-Quick-Stop-Straw-99053938/207050533
But I'm not confident that this will stop whatever is vibrating, and once this stuff is in, it might be harder to deal with the issue another way.
Any ideas? Thanks.
The good news is that pushing on the drywall in a particular place will cause the buzzing to stop. So I'm trying to figure out the best way to fix this. I was thinking of drilling a small hole and spraying some expanding foam insulation. Something like this:
https://www.homedepot.com/p/GREAT-STUFF-16-oz-Big-Gap-Filler-Insulating-Foam-Sealant-Quick-Stop-Straw-99053938/207050533
But I'm not confident that this will stop whatever is vibrating, and once this stuff is in, it might be harder to deal with the issue another way.
Any ideas? Thanks.
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- 15 posts total
I agree with you audiozenology. Really no need to analyze my comments any further as wl all have made OP aware that this stuff expands like all get out and can wreck "stuff" (yes most likely drywall or sheetrock name depending on the part of the country you live) if not used carefully. 213runnin, it was used between the stud and the wood frame of the window. Per Marvin professionals it is not an uncommon problem that the foam can bend the wood frame of the window which is much thinner than 2x4. |
jaytor OP Find where it’s rattling by placing your hand on the drywall playing the music that sets it off. This will be the spot where you have to fill the square inside made up of the "studs" and "noggins" see link The distance between the "studs" are around 20" and the distance between the "noggins" around 18" or the other way round. This is the square you have to fill with the expanding foam, make a hole in the drywall to put the nozzle in and squirt the foam up and down inside in for about 6-8secs only, should be enough, then fix or hang something over the hole. https://www.carpentry-tips-and-tricks.com/images/460x460xStudwork.jpg.pagespeed.ic.L5OnQuYSr3.jpg Cheers George |
- 15 posts total