mold or mildew in my bathroom ceiling? what is it, and how do i get rid of it? and whats the caused?

Answer 1

It probably is mildew, try spraying a Clorox/water solution on the ceiling.

Answer 2

It is caused by too much humidity. I have the same problem at my house. It wasn't too bad until I had the wife and kid move in. Now we have 2-3 showers every day and damp towels hanging in there 24-7.

I make everyone run a fan that vents outside during and after their shower and I am putting in a small dehumidifier that fits on a shelf to help. I think the next step will be to hang the towels in the bedrooms.

To get rid of the mildew/mold on the ceiling I use a big sponge (like you would use to wash your car) and a ~10% bleach in water solution. I wipe down the ceiling and walls whenever the mildew gets bad.

Answer 3

Most likely it's what everyone has described above. However, I had the same problem in one of my upstairs bathrooms that I attributed to the same thing. I "fixed it" several times but it always came back. During a recent remodel I discoverd that the problem was actually a small leak from the vent line from the water closet. Apparently the builder had missed glueing one of the PVC joints which left a very small leak of dripping condensation in the attic. It was never large enough to actually wet the ceiling or insulation that you would notice but the mold eventually worked it's way through to the ceiling below.

Answer 4

Clean off with neat thin bleach. When done clean it off again but leave the surface wet with the bleach. When dry and clear of the mould, paint it over with a white undercoat paint but this must not be a water based paint. Cover the whole area effected by the mould. When dry paint as usual with bathroom emulsion paint. It might come through again after a year but treat it the same again and eventually it will go. Be sure that the bathroom is well ventilated, put in an extractor fan would be a good idea. When using the bleach wear rubber gloves and eye protection.

Answer 5

Mold and mildew is from water vapor or your walls or floor getting wet and staying that way. The best way to kill it is with Bleach and if your not in the house. Then put on pretty heavy if you can not leave your house dilute it in water with a spray bottle half and half and have it check out with a professorial and all ways wear a mask when around it some molds can make you very sick or kill you

Answer 6

Killling the bacteria with a bleach solution works to stop the immediate problem, but you need to install a bathroom exhaust fan. Check out home depot for that. Another way to stop it from happening until you install a fan is to leave the bathroom door open when taking showers/baths so the humidity can escape.

Answer 7

I beleive a fungus or bacteria growing from moisture causes it, and bleach will wash it away but chances are it will reappear soon. Use vodlka. It will kill the fungus or bacteria and it won't grow back.