Yellow mold on walls walls often become places for mold to grow especially in the middle of the ideal situation.
Yellow liquid on bathroom walls.
I don t believe the prior owners smoked but you never know.
Then i noticed it on top of the radiator.
Cigarette smoke and gas heat can leave residues on walls that when wet can run down walls in condensation and look yellowish brown.
It can also be found under leaky sinks around leaky window frames and in attics or on ceilings when roofs leak.
It means that your walls are painted with an oil based paint and its the oil coming from the paint u need to redo the walls with a non oil base paint and a mildew resistant paint made especially for bathrooms that is why u get the yellowish brown spots its the oil in the paint coming thru.
Yellow mold on walls may grow into larger fungi colony so you need to remove it when the problem is still small.
You need a better vent or leave the door open when you shower.
The second explanation is that the yellow stuff is you eww or more specifically the oils from your skin lifted off by with hot water and redeposited onto the walls after the humidity in the room dies down.
The condensation causes all the foreign material that is on the wall to coalesce into the water droplets.
Steam shampoo hairspray cigarette smoke all combine to create this yellow drip.
Since everything in the house is 30 years old i m sure the paint in the bathroom is no different.
Then pooled on top of the toilet paper holder.
Household mold typically grows in damp areas of the home such as bathrooms and basements.
For the sake of my sanity in shared shower situations i ve chosen to go with explanation 1.
High humidity moisture problem and lack of fresh air or sunlight are factors that cause yellow mold to grow on walls.
Magic eraser cleans it in a.
It didn t build up it more or less pooled.