Blue mould with furry bits on my DD’s room

[Krazynights34]

I’ve just discovered this. All over the lower part of the external wall. We just moved in two weeks ago.
She has respiratory issues.
I’m freaking out.
Do any of you have any ideas what I can do?

Are you renting?

Try cleaning it off with a bleach solution/bleach spray
Contact the landlord

Is it on the inside or outside. Can you post a picture.

No we bought it!
It’s an old bungalow with 1980s wallpaper- I’m desperately trying to get the wallpaper off

It’s on the inside

Just appeared in the last day I think

Can you post a picture

Check the home report as any issues with mould should've been highlighted

Wipe it off with bleach. Make sure the room is well ventilated. Consider a dehumidifier.

Is it a ground floor room? If not it's most likely to be caused by condensation, nothing the landlord can do other than improve ventilation.

There is no landlord

Ah it is a ground floor room, that's not good news. Did you have a survey? If damp is rising from the ground, that's a problem and you'll need a builder I'm afraid.

Sounds like condensation and you can clean it off with mould remover. Could be caused by lack of ventilation or there could be water coming in from somewhere.

Try this as a starting point. Much better than anything, including bleach.

www.amazon.co.uk/HG-186050106-Mould-Spray/dp/B000IU40HQ?tag=mumsnetforu03-21

It is unlikely to be rising damp. I have had that in 2 homes and it is completely clean- no mould.

Have you been using a wallpaper steamer, is there any ventilation and heating on in that room. Can you look outside to see if any water is getting in.

Try not to put any furniture up against the external wall. We get condensation damp in our house and it is always worse behind furniture. I think it is because it prevents the air from circulating. We've now got a dehumidifier to help with the problem.

Are your gutters overflowing in the rain? This can cause all sorts of damp issues but is an easy fix so worth checking first

Check your survey to see what it says

At my last house, an old thick walled one, we would get this in the winter months. Upstairs or down.

The only way I found to prevent it, was to move any furniture away from external walls. It stopped happening then.

I can’t seem to include a picture

The pic is there. Does the wall feel wet and cold.

Have a look at what is on the outside of this wall , as it's low it could be rising damp but look to see what's causing this , broken drain ? Some earth or paving higher than the damp course ? Solving the cause is the most important part ,

It looks like rising damp to me! But I know nothing.
We didn’t do a survey (the shame I feel now!!)

The wallpaper was damp

I bet it’s caused by some structural issues

Is there a blocked drain the other side of the external wall? It can happen at this time
Of year with leaves blocking things.