You re not imagining things.
My bathroom walls sweat paint.
When condensation from a hot shower or bath forms on the walls and begins streaking or dripping down the wall drip marks occur.
Place a dehumidifier in the areas with the most wall condensation.
Crank up the heating system or if not available hire places generally hire out industrial heaters.
Start painting in the corners and work your way across the walls.
Ventilation is your friend when it comes to long.
Benjamin moore aura bath spa or 2 use an antibacterial microfiber cleaning cloth dipped in warm water.
If you have several areas particularly on.
It can usually be washed off but tends to come back.
To get rid of mould first kill it with a brush on solution containing biocide which you can get from diy hardware stores.
Next repaint the walls using a fungicide paint recommended for bathrooms.
What can you do to fix the problem.
These spots can have a sticky glossy or soapy feel.
Ensure the area has adequate ventilation.
It is more likely that you are dealing with a paint surfactant issue.
Don t use any chemicals.
But whatever they feel like they don t look good on a beautifully painted wall or ceiling.
If the paint sweating is occurring on a regular basis in the bathroom areas it is a good idea to check if the exhaust.
If possible let the paint dry for a couple of days before taking a hot shower.
Give the ceiling a coating of specialist paint too.
Quite often one would paint a bathroom and take a shower the next morning causing this issue.
Those drip mark lines on your bathroom walls do exist.
If paint did not get a chance to cure properly before it was exposed to moisture these soaps can leach out.
The best way to to make sure your walls are streak free are 1 use the highest grade paint possible for your bathrooms don t go cheap ie.
Install an exhaust fan in your bathroom.
Wipe your walls down after every shower or bath.