Damaged wallboard behind tiles
Posted by David Cochran on October 09, 1998 at 21:05:34:
I have a fiberglass shower pan setup and have had
a recent problem with water dripping thru downstairs.
Pulling back a few of the bottom tiles revealed water
damage to the wallboard (in some places up to 3 tiles high).
The problem seems to exist on all 3 tiled walls. Does
this sound like a case of bad groutwork, or something
more involved? Would regrouting be OK given the (moderate)
damage to the wallboard behind, or should I think about
replacing the drywall also? Thanks.

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