Roof Mold/Fungus on Shingles

[wmcettrick]

I have a shingled roof and am surrounded by pine trees. On my garage, there is a green mold or fungus growing on it. It’s also on the trees. It might even be a moss. I saw on TV once something about Zinc strips that I place on the roof and the rain washing the zinc down and kills off the mold. Anyone heard of this or know of a way to get rid of it? If I try to scrap the mold off, it wrecks the gravel shingles.

[Giddaymate]

Hi,
The best way to get rid of Lichen is to spray with house hold bleach or if you have a pool you can use your liquid chlorine.

There is also a product called “30 seconds” which is an outdoor cleaner for cleaning Timder, concrete that would be perfect for your job. It kills Algae, moss, mold, mildew and lichen which is very common on roofs.

I have used it myself. Just pour some of the 30 seconds into a pump spray bottle and spay all over your roof and your roof will look like new again. Here is there site to visit http://www.30seconds.net.

Here is more information about Lichen.

http://www.bugs.bio.usyd.edu.au/Mycology/Plant_Interactions/Lichen/lichenBiology.shtml

The site below mentions that Lichen is a good environmental indicator because it absorbs pollutants from the air ,well as stabilising the soil surface and Lichens have also been used as a food source during famines, and dyes by the Navaho indians, and as drugs for the treatment of lung and skin disorders. Reindeer feed on lichens.

http://www.burkesbackyard.com.au/1998/archives/26?p=2899

Regards Noelene

[chemist1]

Zinc strips are ok after the moss has been removed, but not before. In some climates zinc reacts to aluminum gutters and causes pin holes to develope.(electrolysis) so be careful. There are a few good chlorine free moss removal products made just for roofs. Try Roof Reviver or Moss Off. Never spray chlorine bleach on the outside of your home. Don’t try to scrape the moss off, the granules will come with it.

[fastron]

I too have heard of putting a zinc strip on the peak of the roof to prevent moss from forming. I’ve had a least two hardware stores recommend it. (Of course they sell the strips.) I purchased a roll of zinc stripping years ago which I still have. I just haven’t put on the roof yet. My feeling is that it will work, but I don’t have any first hand knowledge. If anyone knows about this please let us know.

[Author]

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