Sweet shim
That’s the bottom of the vinyl flooring you’re looking at.
Mold
Hmm

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Bright white mold, soft wood
Stain from mold

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Dubious new post... right over this recently sealed crack.
You can’t see it but this pillar already has a split all the way through

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Hmm.
Alrighty.

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Shimmed with sheetrock
More shims.

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Rotted joist
More mold stain

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These were pushed up against the south wall... they’re soaking wet.
Recently sealed

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Lots of colors
Soaking wet.