So do I but I would prefer that they go to repairing roads and improving drainage then cleaning a roof. I don't think people that have homes that are in danger of flooding would care about cleaning the cajun dome roof. It's all about priorities. Clean a roof or keep a house from flooding .......clean a roof or repair my roads ........ clean a roof or maintain a fire/police department. That was the whole point in my original post, it's a losing battle. We live in south Louisiana every single roof on every single building has this problem. The cajun dome is no exception. THE ROOF IS GOING TO TURN BLACK.