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QDEAR TIM: My roof needs cleaning. It's a newer asphalt shingle roof, but parts of it are covered with moss, lichens and algae. Is a pressure washer a good tool for cleaning roof shingles? Will it ...

Q - Our roof has dark streaks in various places even though there are no trees directly around our home; our neighbor says it needs to be cleaned. How would we clean the roof? The guy with his ...

You likely have an algae problem (and pressure washing is not the solution). If you've started noticing black streaks spreading across your rooftop, you're not alone. After a spell of wet, humid ...