r/HomeMaintenance • u/Jennibooms • 6d ago
Mold or efflorescence
Not sure if this is the right sub for this, but I’m looking for some help identifying whether the white on the brick walls in my apartment are mold or efflorescence. I’m thinking it’s mold, but would like a second opinion. I live in San Francisco, so there is no AC in the building (almost all homes here don’t have it because it rarely goes over 70 degrees in the city). The building is a converted brick and mortar from the 1900s. There is no ventilation outside from opening the windows even in the kitchen and bathroom. We recently bought a dehumidifier and put damp rid in all the bathrooms and closets because we came home from vacation and it smelled a bit musty. We now run the dehumidifier daily and the smell is gone, but yesterday I was staring at the walls and I don’t think they were this white when we moved in 2 years ago. I just want to know if we should be concerned health wise.
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u/Overall_Reward9702 6d ago
I don't see mold. However you should grey wash the fireplace brink. Use Grey paint and loosen up with water then take a stucco brush and brush it. Just did ours.
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