What's the best way to get moss off of asphalt shingle roof?
We live in northeastern Ohio and have a dark/black asphalt shingle roof that nearing replacement age—maybe 3–4 more years. There’s a good deal of moss growing on parts of the roof. Any suggestions for getting it off/dead? Thought about bleach solution, but don’t want to discolor the shingles. Not sure I want to powerwash it—it’s on the second floor. Ideas? Thank you!
Observing members:
0
Composing members:
0
7 Answers
We had to deal with this a few years ago. We went with a pressure washer. It was a huge pain in the ass. If you do make sure you spray down. Start at the top. But we banged out 2000 square feet in a day. It goes really fast.
You can purchase dry granules/powder from any roofing supply store to sprinkle on it. It’s a Zinc & Copper mixture used in horticulture as trace minerals and here we spray it on citrus trees to eliminate and prevent the black sooty mold.
It’s my business- Powerwash with a mildewcide solution. The solution is hardly even necessary with the right equipment
If you’re not comfortable hire someone.
I always used bleach but you are right will change the color of the shingles and everything else it touches. Probably the environmentalists would hate you as well.
I hate using powerwashers unless you wear scuba gear and it could be hard to walk on the roof in flippers.
@YARNLADY‘s suggestion sounds like a winner to me.
@rooeytoo
Yes but there are ways to do it very safely like I mentioned. And in fact there really is no other way. You can scrape it off by hand and scrub it with a brush but that would even be more dangerous. Here’s another image of a guy doing it safely.
@SeventhSense – I should have looked at your first link, when I hear power washer, I was thinking of one with just a hose and nozzle on the end. I have a love/hate relationship with them.
The one you show looks like a winner. Thanks for the information. I still think I would hire a professional though, I am sure there are tricks of the trade that make the job easier and safer!
Response moderated (Spam)
Answer this question
This question is in the General Section. Responses must be helpful and on-topic.