I am in the home service business and we are looking at the market here in Minnesota, we are a reliable company and have lots of customers that need the roofs cleaned, I have heard of putting a fire retardant in our process, Looking to make a big impact up here in the cold area any pointers......
I don't know how many cedar shakes cleaning jobs you have done. I just finished one here in Iowa and can tell you there is a big learning curve. As to your question, I am not sure what purpose the fire retartant can or will serve? Can you explain in more detail, as I am interested.