Cleaning Moss-Algae of Cedar Roof

belle123September 27, 2010

We have an older cedar roof that has a few years of life left. There are several areas that have moss or algae growing where the roof is shady. Also, the roof is almost black. How can I safely clean the roof without damaging the cedar shingles?

Thanks in advance for your help.

Here is a link that might be useful: Photo of Home

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One thing not to do is pressure wash it. I was in the same situation as you a couple of years ago. I hired a company that used an air blower to get most of the debris off the roof and then they spread moss killing crystals. It worked fine and minimized damage to the fragile roof.

    Bookmark   September 27, 2010 at 9:45PM
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