Bathroom renovation revealed this black staining in the ceiling lumber next to a vent pipe. Is it a problem? (The PVC pipe is new.)
I seriously suck at Lemmy. I deleted this post I guess?
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I’m thinking it looks moldy, but I’m far from an expert.
Your post is not deleted, or at least my app (Connect for Android) still shows it to me. I would point out, however, that Google photos shows your real name, which you may not have intended.
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