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POLLUTION: A more responsible way to control ugly roof moss or algae

Letter by David B. Wheeler, Gig Harbor on Nov. 10, 2010 at 11:38 am with 25 Comments »
November 10, 2010 12:00 pm

Re: “You have options to get rid of that ugly algae on your roof” (TNT, 11-10).

A better way to control algae or moss on our roofs is to use baking soda. It is cheap – about $6 for a 10-pound bag that will cover most roofs – and it works!

Using zinc, copper or lye will only contribute to the pollution of Puget Sound.

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Leave a comment Comments → 25
  1. I’d use motor oil if it worked.

  2. I heard motor oil DOES work, but you have to sprinkle it liberally with chunks of styrofoam.

  3. Any cheap powdered laundry soap containing bleach works good too. Moss Out is too costly.

  4. alindasue says:

    Motor oil would be just as bad a pollutant as copper or lye would. Baking soda, if it works, is a much more benign choice.

  5. Naaaa. I like the motor oil and styrofoam idea better. Besides, it’s all derived from a natural substance pumped from the ground in nature.

  6. The smelter use to do a good job of keeping the moss in control. Only problem was now and then the smog would be so strong it would also kill the flowers in the garden. I sure do miss the good old days of walking to school inhaling sulfur dioxide and whatever else was in the mix – not….

  7. aislander says:

    italianspring: I understand that pumping large quantities of chlorofluorocarbons into the atmosphere will open the ozone hole right up, and the additional UV will kill the moss on EVERYONE’S roofs, thereby reducing the necessity of polluting Puget Sound. Detonating a neutron bomb at an altitude of about two miles has a similar effect, but not over as wide an area…

  8. aislander — I have a couple of Japanese Maples I really like. If I cover them with blue tarps before the neutron bomb goes off do you think they’ll make it?

  9. aislander says:

    Not sure about neutrons’ effect on Japanese maples, but there was a study on the effect of gamma rays on man-in-the-moon-marigolds. Something tells me you wouldn’t care anyway, after the event…

  10. aislander says:

    …and I know that the gamma rays/marigolds thing was a play and a movie, not a study…

  11. yes, because I believe everything I see in a movie. Just like Sumner believes everything he reads in the paper, and disbelieves anything he didn’t read in the paper.

  12. I am laughing my a$$ of guys, please stop!

  13. Sumner401 says:

    School out early today or is this just a really long recess?

  14. aislander says:

    I’m just TRYING to be environmentally conscious, sum…

  15. You know what else might work without adding chemicals to the bay? You could set up a series of hoses and leave them on all the time so that there was always water running over every square inch of your roof. I don’t think moss will grow under running water. That might work.

    Duh, Sumner. It’s a holiday.

  16. Sumner401 says:

    Oh, so no school, that explains why all the little children are spamming the blog.

  17. aislander says:

    I’m merely giving the subject the serious consideration it deserves…

  18. aislander says:

    You’d probably prevent moss with that arrangement, ronniew, but then you’d have eelgrass and elodea. Maybe even duckweed. Then you’d have to build a fish ladder so that salmon could spawn in your gutters…

  19. But then I could invite the high school microbiology classes to visit and study my freshwater habitat. Good for the kids, huh?

    Would it then be legal for Native Americans to fish in my yard?

  20. Islander – we all know that Ronniew is the one who is right in the middle of the enviRONmental debate.

  21. aislander says:

    I’m guessing you’d have to abandon your house due to both the Boldt decision and its having become a sensitive environment…

  22. Okay, but I have a mortgage I’m assuming I’ll have to keep paying on, whether I live in the house or not. Since I can’t afford two mortgages I guess we’ll have to move in with Sumner.

    Sumner — do you like kids?

  23. aislander says:

    Does Sumner like kids? He IS a kid. Of course he doesn’t…

  24. If he’s a kid he’s doing an amazing impersonation of a crabby old fart. If that’s the case I’m actually impressed, and hopeful, that as he matures he won’t be suck a di**head. I assumed from his constant anger he was a dime-a-dozen bitter old know-it-all whose kids won’t listen to him anymore. I know I don’t take him seriously. Are you sure he is a he?

    Hey Sumner — if we were all in school we would bully you.

  25. aislander says:

    re sumner: I was talking about the numerator, not the denominator…

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