Dear James: Our 3-year-old light-colored roof already has dark stains over most of it, except for near the chimney. Why is that, and how can we stop the staining from getting worse? — Phil R. Dear ...
Dear James: My house has a light-colored roof and it needs to be replaced. It has always had a problem with dark stains on it. What is causing the stains and how do I avoid them on the new roof? -- ...
The Family Handyman on MSN

How to Clean Roof Stains

As with most jobs, the right tools can save you a great deal of aggravation in the long run. You’ll need a full-body harness, ...
I was having lunch with a friend a few weeks ago and he said, “I have an idea for one of your articles.” I said, “OK, what’s the idea?” He asked me, “What’s the best way to remove the ugly dark ...