Popcorn ceilings were inescapable from the 1950s to the early 1980s.
How to treat mildew on popcorn ceiling.
Builders sprayed a stucco mixture on the ceiling that had a lumpy cottage cheese like texture.
Scrub the mold away with warm water and a scrub brush.
Using a scrub brush will make it easier to break up the mold as well as keeping your skin further removed from the vinegar while you are cleaning.
Zinzer makes several types.
Using a brush scrub at the area of mold which has been sitting in the vinegar.
Humid air and poor ventilation contribute to mildew growth on bathroom ceilings.
The mold will simply come back quickly later.
You will have to remove the affected portion of ceiling and replace it.
If your ceiling is moldy you may have a water leak in it or behind the walls.
They were a quick cheap way to finish ceilings in tract homes and apartment buildings.
Also depending upon how much mold or mildew it is that you have.
Mildew is a fungus that contains a musty odor and appears as multicolored spots on ceilings.
Examine the material used to construct the ceiling.
If any kind of porous material popcorn wood drywall etc has been used on your ceiling then you will not be able to clean it properly.
Continue to clean your brush off in warm water as you work through the moldy area.
If its just a darkening of the ceiling and its really only a sand texture you can clean the surface using a bleach and water solution to remove any loose mold growth let dry then paint using a good quality mold resistant primer.