Removing mould from a bathroom ceiling? 1 March at 11:24AM in In my home (includes DIY) MoneySaving 18 replies 692 views

Marvqn1

I want to remove mould from a bathroom ceiling. What is the most effective way to do this?

I would like to use a mould remover product to do this instead of mixing up a solution such as bleach and vinegar.

I see that Dettol Mould and Mildew Remover has positive reviews. However, in the product information it says that it isn't suitable for use on painted surfaces. The ceiling is painted although it will be re-painted after the mould is removed. Would this be suitable or is there a better option that people have had good results with?

What type of mask would be suitable? Does the mask used while removing the mould need to be a respirator mask?

What is the best type of paint to use on the ceiling after the mould is removed to reduce the chances of mould returning? Is a stain block necessary to use at first before painting the ceiling?

Thanks for any advice.

FreeBear

Marvqn1 said: I would like to use a mould remover product to do this instead of mixing up a solution such as bleach and vinegar.

Good choice. You should never mix bleach with acid (vinegar) as it will release chlorine gas - Breath in chlorine, and it will destroy your lungs and potentially kill you.

I find Cillit Mould Remover to be quite effective - No real need to wear a respirator as moisture will stop (most) of the spores from spreading. If you are concerned, a well fitting P3 mask of decent quality will limit your exposure.

grumbler

FreeBear said:

Marvqn1 said: I would like to use a mould remover product to do this instead of mixing up a solution such as bleach and vinegar.

I find Cillit Mould Remover to be quite effective

Contains < 5% Non-Ionic surfactants, chloride-based bleaching agents, Disinfectant, Perfume.

surfactants = soap

I don't see how it can be more effective than a normal bleach containing 3-6% of the same 'chloride-based bleaching agents'.

    

"Body is 1 character too short." - unbelievable!

NSG666

White vinegar

diystarter7

Hi OP

Use an approved cleaner a few times. (check reviews to get the best one)
Zinnser paints do good piants

To stop this from happening again, increase ventilation and heating in the area if possible.

Good luck

grumbler

NSG666 said:

White vinegar

Good for killing, not for removing.

movilogo

Usually bleach with water in 1:5 ratio volume and wiping with a cloth works fine. Make sure you wear gloves and after wiping the mould you ensure some airing. Then check after couple of days if any sign of mould coming back.

Marvqn1

diystarter7 said:

Hi OP

Use an approved cleaner a few times. (check reviews to get the best one)
Zinnser paints do good piants

To stop this from happening again, increase ventilation and heating in the area if possible.

Good luck

If using Zinnser paint on the ceiling such as Zinsser Perma White, does it require two coats?

plumb1_2

Best I’ve used is HG mould spray, used it loads of times in rental properties.
Dulux easycare bathroom paint, mould resistant.

flashg67

+1 for the HG spray - very strong - ventilate when using.  Are you in an old property? I've found breathable paint such as limewash helps to stop mould regrowth

Bigphil1474

I've used the HG spray and it's really powerful effective stuff. Brought my bathroom tile grout back to new looking on the walls. However, it specifically says NOT FOR CEILINGS. Presumably this is to stop you spraying it all over yourself as it's a strong chlorine solution that's fairly runny/thin and will probably burn a lot, and will also drip onto whatever is below. Also stinks the room out for 24 hours so needs good ventilation.

OP, I just use thick bleach dabbed on to the mould, leave for 10-15 minutes, then wipe off with a clean cloth. I don't use a mask or any other PPE - do use a step ladder though as it's no good dabbing directly over your head, and keep the windows open. Cleans the ceiling fine and only comes back because our bathroom ceiling is prone to condensation. I have to do it every 6 months or so but it's due a repaint so am gonna used some mould resistant paint next time to slow it down.