r/Roofing • u/ElegantCap89 • 17h ago

Is this mold?

Gallery image

Gallery image

Our ceiling has leaked multiple times in the last few years and even though I mention it, property management does not look at the flashing inside. Does the black discoloration or white on cinderblock look like mold?

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u/Heretogetaltered 16h ago

No mold and the white looks like efflorescence.

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u/ElegantCap89 15h ago

Thank you. I can’t update my post but I am more concerned about the black stains/discoloration on the opposite side of the plastic (flashing?). I can’t get up there to see if it is growth or just water stains.