Gearslutz.com - View Single Post - Ideal door STC rating for garage studio conversion

numrologst · 12th December 2007

I'm not a big fan of SoundBreak... but using it is your decision... I've seen better results with green glue than soundbreak, and it is a little cheaper.

Your inner wall is fine... Like I said, SoundBreak is your choice. The RC is nice too. I'd add another layer of gyp before the plywood.

R13 should be fine for you.

The way you are talking about the build, a 41 STC door will be a weak link. Likely, I would do a double door... Then you will be in the neighborhood of what your walls are doing.

Bass traps aren't gonna do anything for low frequency TL. That's interior acoustics, not soundproofing. The only thing that you can do at this point for low freq TL is to add more mass... That will have diminishing returns though. The next step is more air between.

I have triple gypsum with green glue, rc, staggered stud, plus 12" air gap... There ain't shit that transmits through the wall...We have to use double acoustic doors with an even bigger airlock to make up for it.

I hope I helped you find your solution... I would go with a double door for sure.

12th December 2007	#8
numrologst Lives for gear Joined: Sep 2005 Location: Texas Posts: 1,955	I'm not a big fan of SoundBreak... but using it is your decision... I've seen better results with green glue than soundbreak, and it is a little cheaper. Your inner wall is fine... Like I said, SoundBreak is your choice. The RC is nice too. I'd add another layer of gyp before the plywood. R13 should be fine for you. The way you are talking about the build, a 41 STC door will be a weak link. Likely, I would do a double door... Then you will be in the neighborhood of what your walls are doing. Bass traps aren't gonna do anything for low frequency TL. That's interior acoustics, not soundproofing. The only thing that you can do at this point for low freq TL is to add more mass... That will have diminishing returns though. The next step is more air between. I have triple gypsum with green glue, rc, staggered stud, plus 12" air gap... There ain't shit that transmits through the wall...We have to use double acoustic doors with an even bigger airlock to make up for it. I hope I helped you find your solution... I would go with a double door for sure.