I was up on my clients roof a few days ago in puyallup just to double check my completed work. Everytime I do this I get a rush of what if it doesn’t look very good. So as i’m stepping onto the roof i can see very little moss and the moss that remains is black and flaking away in the wind. The product that i use is called Lilly Miller moss out. Very effective, little bit expensive, but well worth it. Anyway the technique that i was taught makes both the customer and i very happy. I hope you can see me on your roof!