Hi, just after some advice on best way to deal with mould growing on this exterior paint.
I’d usually use Dulux Multisurface Fungicidal Wash, apply it and leave for 24 hours, then wash off and apply paint. But having read up a bit on the internet I’m now wondering if I need to take off the paint from affected areas completely?
I guess I’d need to find out if the paint is just growing on the mould or coming through it, by scraping a section off and seeing what’s underneath the paint?
If anyone has used the Dulux product, they may have noticed that it doesn’t actually get the stuff off, but just kills it (one hopes). This will sound a stupid question, but is it strictly necessary to scrub scrub scrub a surface like this until there’s nothing left?
Any advice gratefully received.