Cosmetic mold / Water stains?

This is an small attic space in a row home built in 1925. The attic space is not sealed from the building envelope and there is a bathroom fan that exhausts into the attic space.

I’m currently going with “suspected mold growth”.

I was reading on Inspectapedia about cosmetic mold vs harmful mold, but I didn’t find that very helpful.

Thoughts?

sounds good

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Marc is the man for mold and such. :smile:

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Not fun to have a $1,000,000 E&O for mold stuff but required.

Thank you Marc!