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Vapor barrier in bathroom with no external facing walls

Vapor barrier in bathroom with no external facing walls


  #1  
Old 04-15-21, 08:20 AM
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Talking Vapor barrier in bathroom with no external facing walls

Hello folks. I am remodeling a bathroom that resides at the center of the house where none of the bathroom walls meet the outside of the house. Is a vapor barrier necessary? I will be adding mineral wool for sound reduction.
Thanks.
 
  #2  
Old 04-15-21, 10:10 AM
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No and maybe.
No vapor barrier is needed.
As far as sound proofing goes it will help a little but not much. Sheetrock and studs along with the plumbing will transmit noise to the adjacent walls, the space between studs is not that much of a transmitter of sound.
 

Last edited by Norm201; 04-15-21 at 10:39 AM. Reason: spelling
  #3  
Old 04-15-21, 10:28 AM
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Thanks Norm201 for your feedback.
 
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Old 04-15-21, 10:34 AM
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vapor barriers, probably mean vapor retarder are only needed on exterior walls!

And agree with Norm, 3 1/2" of anything is not going to do a lot, soft touch and rock wool are better!
 
 

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