I have these black streaks on my roof.
I've been told it's some sort of algae or something. I was told (by the same person) that a bleach/water mix sprayed on it will make it go away.
Thoughts? If the water/bleach is the resolution, what's the mix or ratio?
Thanks
I've been told it's some sort of algae or something. I was told (by the same person) that a bleach/water mix sprayed on it will make it go away.
Thoughts? If the water/bleach is the resolution, what's the mix or ratio?
Thanks