Those dark stains aren't dirt — they're alive and eating your roof.

Winter is coming. But is your metal roof in the best shape it can be to weather the upcoming change of season? Metal roofs are known for being easy to maintain, exceptionally long lasting and durable.

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 ...