Hi All, I have a fungus growing on the inside of my flow roof - bright orange. I scrapped it off and repainted my roof (on the outside) - but it is back. I noticed it on my first visit post winter (mid Sept). My guess is that I did not kill the spores and this is why it is back. I have attached a photo.
Should I just buy a new roof or can I clean it safely and most importantly does it impact the bees? It was suggested that I could use a mix of vinegar and bicarb. Any thoughts on this and the proportions?
Thank you, Lisa