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Do you need a vapor barrier behind tongue and groove board in a bathroom?

Do you need a vapor barrier behind tongue and groove board in a bathroom?


  #1  
Old 05-03-20, 05:19 PM
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Do you need a vapor barrier behind tongue and groove board in a bathroom?

Just got done hanging drywall in my daughters bathroom, now she wants to put tongue and groove pine board on one walls, do I need any kind of vapor barrier behind the pine board? Should I paint the drywall it's going over to help make it moisture proof? The pine board would be going on a interior warm wall..
 
  #2  
Old 05-03-20, 05:24 PM
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No, you do not need to do anything special.
 
  #3  
Old 05-04-20, 03:49 AM
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If you stain and/or apply 1 coat on the T&G prior to installation it will save you some time. I like to stain [or not] apply a coat of poly, sand when dry and apply another coat. It goes a lot quicker when working with a saw horse. After installation I'll use colored putty on any exposed nail holes and apply the final coat.
 
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Old 05-04-20, 04:28 AM
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I'll stain and poly the pine board before putting it on the wall.
What about the drywall behind the pine board? Should I apply a coat of primer or something for any kind of moisture that may get between the drywall and pine board?
 
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Old 05-04-20, 05:26 AM
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It probably isn't necessary but definitely doesn't hurt.
 
 

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