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