The Roof Cleaning Institute Of America Training & Certification Forum
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As a nationwide organization we all realize that there are various types of mosses, lichen and of course GM . I have searched quite a bit and was surprised that there was not more conclusive information with photos of the different types of Bryophytes. Moss and lichen removal has different requirements depending on the type, which has to do with the location. Some on this forum have an incredible amount of knowledge for there area which is great, but we know that may not translate to Portland (for example).

I run into large lichen that practically fall off on there own, but some smaller ones are tenacious and always the last to go. Some moss that has grown large and clumpy comes right off
with a light touch and no granule loss. Other mosses are hairy and stubborn as a mule. Many here are experienced professionals in the field. We would have to admit though that this is specific to their climate/region.

Who better than roof cleaners to provide information that pertains to the whole nation, regarding whats on there roof. I think it will be a valuable thread. Conclusive identification for what we all deal with would be beneficial for us as roof cleaners and many others. I will try to start the thread unless somebody else does first (which is fine) I think this would be a valuable collaboration that others would be hard pressed to produce. Seems to me it should provide photos and identification of the enemy.

Unless I'm being a nerd and nobodies interested.