Most of us have seen the tech. bulletin so I didn't include it here. I sent GAF an email as if I was going to have my roof cleaned. They sent the helpful pdf. I'm sure we can use this in some way.
Roof Cleaning New Braunfels TX 830-660-9849 wrote:
I like how it says "inpact on roof" Aesthetics only... That could come in real handy
William, I also saw that on the first page. But, the last page states "Lichen and fungus growth...left to grow, this may eventually damage the shingles by lifting them and further inhibiting water runoff"
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Shingle Magician Roof Cleaning 585-301-3415 Roof Cleaning Rochester NY Safe, soft wash roof cleaning Rochester New York area, using a non pressure cleaning solution recommended by shingle manufacturers
Wonder what some of my competition would have to say about the anti-algae cleaners recipe
Yea, Chet... now we can use a new term "Anti-Algae Solution" we just have a little different mixture. I wonder how long it would take with that mixture and a pump up sprayer?
I'm glad this will work for you guys. I've printed this off and highlighted the areas that can be useful and will add it to my portfolio. I'm thinking about removing the actual recipe.