Bird poop clraning

[Ukrainian_Kozak]

I have 2 nasty stubborn stains from bird poop in my roof... Any idea how to get rid of them? I thought rain will wash it away eventually, but no... They are like drawn using permanent marker, no amount of soap and scrubbing having any effect...

Jay flight Slx 174BH Baja

[ttavasc]

I've used the regular Dawn dish soap the last two years and it's done a decent job. I was having trouble getting rid of a rather stubborn stain that had formed under the folded TV antenna so I tried a small spray bottle of the Dicor Rubber Roof cleaner that I got from my dealer and it seemed to do a much better job eliminating the stain. You can see in the attached picture the before and after.

[Seann45]

Bird poop is acidic and if left on too long will stain and you will not get it out