Gloeocapsa Magma - Cyanobacteria. This is the name of the Algae found on your roof.
It feeds off of Limestone and other additives in your shingles, breaking them down. Here is a link with some more information. Share this info with your neighbours! And remember, Spray Wave is currently the only PW in town that will remove it completely... from your roof safely with NO PRESSURE.

Visit: http://en.wikipedia.org/wiki/Gloeocapsa_magma to learn more about this Algae.

If you or someone you know has an Algae problem, visit us online at www.spraywave.com or call 204-509-4976 to learn more about our process and our Guarantee!