In sum if you see black streaks up the building wall in a regular 16 or 24 pattern particularly on cooler exterior walls but potentially anywhere it may be thermal tracking.
My bathroom has streaks on the walls.
If your home has a moisture problem resulting in water streaks on interior walls the best way to fix the problem is to increase ventilation.
Fill a spray bottle with the solution.
Spot ventilation is the use of exhaust fans in particularly humid areas of the home such as the kitchen and bathroom.
Surfactant leaching frequently shows up in bathrooms and other humid environments on ceilings or walls.
One way to avoid these streaks would be to use oil base but that smells terrible and is getting harder to find in california.
Most paints for bathrooms are water based.
Let the solution soak into the affected areas for 5 10 minutes.
1 gallon warm water.
Spray the walls with the solution and allow it to soak for 15 minutes.
1 4 cup baking soda.
While unattractive surfactant leaching does not harm the coating and the discoloration from surfactant leaching is not the same as water stains or spots and should not be treated as such.
To get rid of drip marks on bathroom walls you need.
To do this follow the steps below.
Scrub the affected area with a brush until the mold stains.
1 cup household ammonia.
Create a solution that is 1 4 bleach and 3 4 water.
Thoroughly soak the affected areas of the wall until it is saturated with the solution.
How to remove drip marks on the bathroom walls step 1.
If you live in an older house that had a lot of different residents move in and out over the years there s no doubt that the place has a lot of character but one mystery that has been stumping me for some time now are these gross brown spots and streaks on my bathroom walls.