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Should I Worry About Mold on Asphalt Shingles?

  • Transcript

    SEAN: I was noticing – last fall, I was up cleaning my gutters out. And I’m getting mold or a mildew type of growth on my asphalt shingles. And I’m wondering if that’s a problem I need to deal with or just let it go and deal with it, I guess.

    TOM: Well, it’s mostly a cosmetic issue. So it’s not going to affect the longevity of the roof. If it got really thick – sometimes we see moss that gets up there and can actually lift and crack shingles.

    Now, if you want to try to get rid of it because it doesn’t look that nice, there’s a couple of things that you can do. First of all, the green solution is to get more sunlight on it because the more sunlight, the less chance that you’re going to have any type of algae growth on that roof surface.

    The second thing is that you could use a product called Wet & Forget. If you go to WetAndForget.com, it’s a product that you mix up. It’s in a concentrated form that you mix it up, you apply it with a garden-type sprayer, let it sit there for a bit of time. And then eventually, the Wet & Forget product will completely destroy the mold, the mildew, the algae, the moss and clean that roof right up.

    And then thirdly, a little trick of the trade is you could put a copper strip across the top of that roof, from end to end. And with a metal strip made out of copper, you can slip it under one row of shingles, as well. Every time it rains, it will release a little bit of that copper and that is also a mildicide and will keep the roof clean.

    SEAN: Wow. OK. Alright. I think we’ll try the spray on it first, then maybe get a piece of copper and run it across the roof.

    TOM: There you go. Good luck with that project, Sean. Thanks so much for calling us at 888-MONEY-PIT.

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