Browsing the "Algae" Category

Moss on roof

March 26th, 2018 | by Henri

Q.  I am almost certain you have covered this subject before, but we didn’t need information at the time. We

Moss growing on roof

August 6th, 2013 | by Henri

Q.   In the last two years, moss has appeared on the asphalt shingles on the east side of my roof.

Black streaks on roof

March 4th, 2013 | by Henri

Q.    We have black streaks forming from bottom to top of our shingled roof.  Mostly shady areas, but sunny also.

Algae stains on roof

July 26th, 2012 | by Henri

Q. I have noticed, over a period of time, some ugly black stains on the roof of my 55-year-old Cape

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