What is the correct mix for a metal roof and what are things to look for when when pricing I do not want to turn any job down but I also want to be honest with myself mostly so I can be honest when talking to the customer in regards to the expected out come. I also have concerns with oxidation what is the correct opproach I know it's all been asked and ansqered but I get lost in answered questions I also did not know so thank y'all for those many answers and also in advance for taking the time on these concerns about cleaning metal roofs