Black Stains on My Roof - What Are They and How Do I Get Rid of Them?
November 19th, 2008 | by roofdisc |The stains on your roof are caused by the build-up of natural pigmentation produced within the cellular structure of a type of cyanobacteria, known as Gloeocapsa Magma, an impressive name for a most primitive life form. Cyanobacterias are single-celled blue green algae that produce their own energy through photosynthesis.
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