Ideally a oil based primer is best for mold sealing and prevention.
Remove mildew from popcorn ceiling.
Spray bathroom ceiling mold with an anti fungal solution.
Let pre washed surfaces dry.
Attach duct tape to a paint roller or use.
Work in small sections from the edges of the.
Once dry then paint.
Apply it directly to the moldy surface and let the wood soak up the solution.
Then use a paint scraper to remove the paint in the affected area.
Pre wash the ceiling with mild detergent and warm water.
This loosens mold from the popcorn texture and makes it easier to remove the growth.
Spray the cleaner onto the ceiling and wipe the mold away with a thick sponge.
Spray the mildew thoroughly with the mixture until saturated.
Let the mixture sit on the popcorn ceiling for 10 to 15 minutes.
You can also use a feather duster to clean the ceiling but it your ceiling is very dirty the vacuum is the better choice.
For easier scraping and practically no dust during popcorn ceiling removal use a garden pump sprayer to mist the ceiling and let it soak in for about 15 minutes before scraping.
Apply a generous amount of cleanser but not so much that it s dripping from the ceiling.
Put the brush attachment on your vacuum cleaner and gently run it over the ceiling.
Cooking grease and cigarette smoke can stain popcorn ceilings.
Make a mold removal solution by combining 2 tablespoons of borax cup of vinegar and 2 cups of hot water and spray the solution onto the affected 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.
Turn a long handled broom around so that its wide soft bristled brush faces the ceiling.
Saturate a lint free cloth in the mixture.
Zinzer makes several types.
Position a steady ladder under the mold affected area.
Hydrogen peroxide 3 wear your protective gear respirator and gloves and soak an old sponge in your cleanser.
Choose the widest brush attachment one.
This will remove dirt and cobwebs.
Only give it a light misting too much water could damage the drywall or loosen the joint tape.