Mix 1 part bleach with 3 parts warm water. Dip a sponge into the mixture and, standing on a stable stool or ladder, wipe off the stain. A carefully applied mix of bleach and water can remove that watermark from roofs, leaving the roof as if it had never had a water leak. The best bleach to water ratio is 2 parts bleach and 3 parts water.
Measure it with the measuring cup. Fill it into your spray bottle and screw it tight. In conclusion, there are a few ways to remove water stains from the ceiling without having to paint over them. You can try using a cleaning and vinegar solution, or you can use a poultice.
If you have serious stains, you may need to hire a professional to remove them. Taking into account all of the above-mentioned considerations, the best way to remove water stains from the ceiling without using paint is by whitewashing. Professional restorers often use this method. Bleaching is easy enough for most homeowners to successfully try.
And, since you're going to be spraying above your head, it's best to use eyeglasses or safety goggles to whiten water stains on the ceiling. After letting the first treatment dry for a few hours, or even overnight, you can decide if you need to re-treat any of the water stains. There are several ways to remove water stains from the ceiling without painting over them. For some reason, the stain may have penetrated too deeply into the roofing material so that the bleach wasn't effective enough to completely remove the brown stain.
And, in case you're wondering, this solution for water stains on drywall works on walls and ceilings. For tips on how to fix water stains on ceilings with popcorn, see How to fix water stains on roof leaks and scroll to the bottom. It's important that you've identified the source of the leak and corrected it before moving on to fixing the ugly water stain on the ceiling. If your roof has damage other than water stains, you should repair the damage before continuing.
If any of the steps in How to remove water stains with bleach are confusing, I recommend watching this short video. You can paint over water damage to ceilings or walls as long as it is completely dry and there is no structural damage. So using bleach to correct water stains on the ceiling really only works if the ceiling is painted white or potentially a very light paint color.