Or copy this URL:
https://www.metalroofing.com/spirit/comment/6750/find/
It will probably wear off over time.
However, many metal roofs can be lightly power washed and can also be cleaned with a solution of detergent, trisodium phosphate, and water.
Before attempting anything, contact the roofing manufacturer and ask them how to clean the roof and how to walk on the roof.
9/22/2005
Isaiah Industries, Inc.
9/25/2005