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Unread 06-21-2019, 09:37 AM   #14
Catmandu
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Join Date: Mar 2011
Location: Michigan
Posts: 66
That is a very good observation. This new drywall has a different appearance than an old piece I had lying around from a few years ago.

While the stuff on the wall wasn't wet, the back of it looked and acted like it HAD been wet and dried out. The paper was wavy and peeled off very easily. Now I know that no one is going to be peeling off the paper on the back of the wall, but I wonder how sound it is and how well it actually holds up to the moisture in the thinset. The moisture obviously has to migrate through the back of the drywall since the kerdi prevents it getting out the front.
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