Removing stains from house roof shingles
m Ransley wrote:
Are you sure the brown isnt the tar comming up, you need to show it to
someone that knows before you make it possibly worse.
No, it's not the tar. I got a little bit more aggressive with the power
washer and I was able to further reduce the brown stain.
I'm going to try some of the products that other posters have suggested.
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