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any advice on this rotting shower?

Damage like this is usually caused over time and due to cracked grout and caulk that has let water seep in and be absorbed into the drywall. This appears to be happening in multiple spots. Start by ...
JACK's user avatar
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0 votes

any advice on this rotting shower?

From what I see in the picture, there are other symptoms showing that the damage is not limited to the one tile. Even with no other symptoms, from experience, I would say the the damage is far greater ...
Jack's user avatar
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1 vote

Is blackening on subfloor around my fireplace mold or soot?

With the closeups and seeing the mortar joint close up, then I realized the rest of the joints are done with black mortar. That is what is on the surrounding floor area. Since it was a bare concrete ...
Jack's user avatar
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3 votes

Does anyone know if this water damage is mold?

That is classic water damage. You need to find and correct the source of the water. Then do treatment and repairs. The black areas of the wood is rotted or beginning the process of rot from wood ...
RMDman's user avatar
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Does anyone know if this water damage is mold?

It looks like (iron) rust staining. It can probably be removed using oxalic acid; but it's purely cosmetic: if you're going to cover it up there's no need to treat it.
Jasen's user avatar
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Does anyone know if this water damage is mold?

It looks like stain not mold. But you do have a leak and some rot in that corner, that is damaging the drywall that comes from above so take care of that.
Traveler's user avatar
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3 votes

Found inside a baseboard heater. Is this mold?

Fungal spores are everywhere. You are breathing them right now. They are not harmful. The picture looks like the normal dirt that accumulates behind baseboards. Get an old spray bottle and fill it ...
Cheery's user avatar
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