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Old 05-23-2014, 02:09 PM   #1
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Vapor Barrier Question

So I did some remodeling in my bathroom. I tore down the existing tile and greenboard above the bathtub and installed backerboard and new tile.

During all this, I tore down the vapor barrier on the exterior wall (I live in Michigan) because it had mold on it. Not wanting to tear down the entire wall to remove and replace the entire barrier, or attempt to patch such a large area, I redguarded the entire wall there once the backerboard was put up, and there is a slight overlap of redguard and vapor barrier.

The area I have a concern is there is a small area of no overlap below the tub lip. Here is an image of the area:

Now I'm starting to stress over whether or not I'm going to have a problem and would appreciate some feedback. Short of knocking down that entire wall, I'm not sure anything can be done at this point.


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Old 05-23-2014, 07:46 PM   #2
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Don't stress. Small area, no worries. Ron


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Old 05-25-2014, 04:12 PM   #3
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Be sure the tub drain access hole at floor is fire-stopped to meet code minimum as this will also reduce air/moisture from condensing on the cavity insulation. The tub framing should have been blocked in the cavity from air/fire movement past the tub lip to above...

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Old 06-30-2014, 01:22 PM   #4
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I'd like to bump this one if it's OK. I don't know why, but it's been on my mind recently.
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