We have a basement bathroom that has water damage from the bathroom above. The damage is old, so it has completely dried, however it has bubbled the paint so the damage is obvious.
Mold is not a concern. We have drop-ceiling tiles so we can see behind the wall to tell that there is no mold.
My thoughts are that I can repair it by scraping the old paint bubble off and using drywall compound to smooth it out before repainting it good-as-new.
My concern is that the drywall is 'ruined' by the water damage. So, is this kind of repair feasible, or will I end up having to replace it anyway?
Best Answer
The risk would be that the compound wouldn't bond to the scraped-away area, or that the remaining drywall would crumble over time. It would be much better to cut out the area and patch it, and it wouldn't be that much more work.
If you do decide to try it though, you might want to use some fiberglass mesh tape to reinforce the patch.