A pressure washer makes quick, satisfying work of blasting away gunk. Whether you’re cleaning your walkways or stripping old paint from a deck, nothing compares to the unbridled power of these ...

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 ...