Those drip mark lines on your bathroom walls do exist.
My bathroom walls sweat paint.
Wipe your walls down after every shower or bath.
It is more likely that you are dealing with a paint surfactant issue.
Ventilation is your friend when it comes to long.
Give the ceiling a coating of specialist paint too.
Benjamin moore aura bath spa or 2 use an antibacterial microfiber cleaning cloth dipped in warm water.
If possible let the paint dry for a couple of days before taking a hot shower.
How to stop the walls from sweating in an old house step 1.
A true exhaust fan vents the warm and moist air from the bathroom.
What can you do to fix the problem.
Place a dehumidifier in the areas with the most wall condensation.
Ensure the area has adequate ventilation.
But whatever they feel like they don t look good on a beautifully painted wall or ceiling.
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.
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.
These spots can have a sticky glossy or soapy feel.
Next repaint the walls using a fungicide paint recommended for bathrooms.
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.
When condensation from a hot shower or bath forms on the walls and begins streaking or dripping down the wall drip marks occur.
Don t use any chemicals.
Install an exhaust fan in your bathroom.
If the paint sweating is occurring on a regular basis in the bathroom areas it is a good idea to check if the exhaust.
Quite often one would paint a bathroom and take a shower the next morning causing this issue.
If you have several areas particularly on.
Start painting in the corners and work your way across the walls.