Home DIY

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Mr_Smyth

Just in that spot? What is the wall behind it?

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Tenderloin in reply to @Mr_Smyth

Fresh plaster - a few spots on the walls

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Mr_Smyth in reply to @Tenderloin

exterior wall? old chimney badly capped? thicker plaster? (usually it’s darker and takes longer to dry. might not have dried fully) and there is more moisture in that spot?
you didn’t use vinyl paint which doesn’t breathe?

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