how do you clean your steel roof?

[macuu222]

We had "Property Wash in Paradise" clean our metal roof last year. We have a 2 story 30 year old home and I'm 70m years old. I decided to leave it to the professionals. They showed up on time and got right to work. They did a great job. Cost $699.00 and took about 2 1/2 hours to clean. They also paint roofs.