A good place to start is chlorine bleach.
Mildew spots on bathroom ceiling.
Chances are it s mildew the common name for the various spores that are both a health hazard and a homeowner s nightmare.
To prevent mold regrowth coat your ceiling with a stain killing primer then paint over it with a mildew resistant.
You can also stand on the floor and use a long handled mop for scrubbing your ceiling if standing on a stepladder is problematic for you.
So long as you don t have colored grout which will likely fade if you use bleach you can spray the cleaner directly onto the moldy grout.
Other than aesthetic purposes mildew removal is necessary to prevent the spores from spreading and further contaminating the bathroom.
Humid air and poor ventilation contribute to mildew growth on bathroom ceilings.
Send these nasty interlopers packing quickly.
These stains can cause your bathroom to look old and dingy.
Ghosting occurs when small soot particulates from candles fireplaces etc.
Additionally if the mildew has found its way into the spaces between your ceiling tiles an expendable toothbrush can be a surprisingly effective tool in scrubbing it away.
This occurs on cold spots such as areas with missing insulation.
Once inside walls and ceilings mildew is tough to remove.
It is not a health issue and can be corrected by lowering the humidity inside the home and or adding insulation to the attic.
The excess moisture that occurs in bathrooms can produce an overgrowth of the fungus.
Mold on the ceiling is caused by moisture that has no where to go.
Collect on damp areas of the ceiling.
If your ceiling is moldy you may have a water leak in it or behind the walls.
Seeing fuzzy black or green spots on a bathroom wall or kitchen ceiling.
Spray the walls and grout lines in the shower with distilled white vinegar or a store bought bathroom cleaner to guard them against mildew which could spread to the ceiling.
What causes black mold on a bathroom ceiling.
Scrub any dirty areas.
Mildew will stain bathroom ceilings causing unsightly spots that are difficult to remove.