Mould on render

[RrogerD]

Hi,
I don't think that I have asked this before so here goes...

The external painted render is mouldy. In the past I have scrubbed with bleachy-water and re-painted but it re-appeared. Another time, I scraped the top surface coat of paint off, revealing mouldy paint underneath. I then did the same, scrubbed with bleachy-water and re-painted. It was better, for longer but it has now all come back again.

Any suggestions for solutions to this?

Thanks

 

[Wayners]

Is that a west facing wall?.
That's going to be battered with rain and get no sun.
I think I'd be looking at cladding so all it needs is a pole wash

 

[jj4091]

Treat with one of these perhaps

Google Search

I know this one works

https://www.screwfix.com/p/wet-forget-mould-lichen-algae-remover-2ltr/143CX?gclsrc=aw.ds&gad_source=1&gad_campaignid=19823510113&gclid=CjwKCAjw0dPRBhAPEiwAE5vTThXbEbTDGFWY-Hl_VRTmaGg5XDsnrXNWLUYTQeY0WQh8ET_EMwzzgxoCvvAQAvD_BwE

 

[RrogerD]

Is that a west facing wall?.
That's going to be battered with rain and get no sun.
I think I'd be looking at cladding so all it needs is a pole wash

It's south west. It sits in the sun pretty much all day every day.
However, we are next to a heritage steam railway. I think the soot smuts don't help things.
Thanks for the idea for cladding but it isn't going to happen. I just want to clean and re-paint.

 

[RrogerD]

Treat with one of these perhaps

Google Search

I know this one works

https://www.screwfix.com/p/wet-forget-mould-lichen-algae-remover-2ltr/143CX?gclsrc=aw.ds&gad_source=1&gad_campaignid=19823510113&gclid=CjwKCAjw0dPRBhAPEiwAE5vTThXbEbTDGFWY-Hl_VRTmaGg5XDsnrXNWLUYTQeY0WQh8ET_EMwzzgxoCvvAQAvD_BwE

Thanks.
I did this(Googled) of course. They all seem to be apply and wait a few days.
If they work, or not, I guess nothing ventured.
Cheers

 

[Wayners]

Whatever paint you use add vc175 to it.
Wooden spoon in a drill is a good way to mix

 

[RrogerD]

Whatever paint you use add vc175 to it.
Wooden spoon in a drill is a good way to mix

Thank you. Useful tip.

 

[foxhole]

https://www.amazon.co.uk/Wet-Forget-Mould-Lichen-Remover/dp/B0187LUYKY