Hi there
Just wondering if someone can tell me what these white marks on a roof means, how to get rid of it, and can I just leave it as it? It's worse on the south facing side.
White marks on roof (north facing):
Non-white marks on the other side of roof (east facing):
Roof it seems is tile or some sort.
Is it salt or tile absorbing water and needs replacing?
Thanks
Just wondering if someone can tell me what these white marks on a roof means, how to get rid of it, and can I just leave it as it? It's worse on the south facing side.
White marks on roof (north facing):
Non-white marks on the other side of roof (east facing):
Roof it seems is tile or some sort.
Is it salt or tile absorbing water and needs replacing?
Thanks
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