Green walls
Hi we used to have a green type of mould on our walls. Someone suggested it came from conifers nearby. We sprayed it with diluted bleach first, a painter friend told us to do this as we had to kill any algae before painting. We left it to work a few days then scrubbed down and painted. Our paint lasted 5 years. We are in need of painting again but the green mould did not come back. If you paint over the mould without killing it it will just come through your paint again. Hope this is of some help. Kind regards.
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