Black Spots On Bathroom Wall And Ceiling.

[flobadob]

Over every few weeks/months our bathroom wall and ceiling gradually develops little black spots. They can be removed with water and bleach but is there any way to stop it from happening in the first place?

I assume it is something to do with water and lack of ventilation as all we have is a window which we can open but the spots still come.

Would an extractor fan help to stop this from happening?

[Retrochic]

we had this problem in an on-suite bathroom with no window. Wash down with bleach solution then over paint with Ronseal Anti-Mould paint , you can buy it at B&Q. I did ours about three years ago and so far no more mould.

[The Builder]

This question comes up a lot, Flobbers.

Extractor fan over the bath/shower. It's the only way :o)

[Retrochic]

I should have added that that will prevent the mould that has got into the plaster from regrowing but addressing the cause needs to be done too -extractor fan -We got one that was in the actual light fitting that was over the shower.

[Gizmonster]

As already suggested, good ventilation is they key. Keep the window open (we keep ours open 24/7, apart from when it's very cold) and keep the door open as well. A good extractor fan is a must as well.
A dehumidifier would help, but I'm not sure about putting it in the bathroom. Maybe you could place it just outside the door - I don't know the layout of your house, so I've no idea if this would be practical or not.

[Gizmonster]

.... good ventilation is "the" key .... :)

[Old_Geezer]

Mould eh...

Yes more ventilation will help, but I think some rooms are simply prone to it. I know my woman's bathroom is, whereas mine has little issue (save in the corner above the bath where there's a bit).

Maybe some rooms have damper walls than others.

[buildersmate]

And don't be conned into fitting a weedy little unit. Shifts too little air. A decent Ventaxia does the job.

[flobadob]

Thanks for the responses. Builder when you say above the shower/bath so you mean directly above it works best?

[The Builder]

Sorry Flobs, missed your reply.

Yes, directly over a shower or bath if you can. I use a shower/light. The sort of thing Retrochic mentioned above. Steam doesn't get a chance to fill the room. Even the mirror stays unmisted :o)

[diddlydo]

We've had no mould in our shower room since we painted it with "Kitchen and Bathroom" paint - and we don't have an extractor fan either.