Pressure washing and wire brushing will damage your roof! The pressure needed to give your roof that "NEW LOOK" causes two significant problems:
  • It strips away the surface on the shingles making them thinner and more prone to weather damage.
  • It causes stress fractures in the roof shingles which will develop into cracks and split over time.
Leak Repair
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Roof Cleaning and Roof Repair in the Greater Seattle Area
Moss Patrol is your one stop source for roof cleaning, moss removal, roof repair, deck washing and gutter service. Our air cleaning system can extend the life of your roof by up to 50%. You can rest assured that, with Moss Patrol, your home or business is in good hands.    "Gentle air roof cleaning is our specialty!"

Moss and mildew can drastically reduce the service life of asphalt shingles, tile, shake, and other roofing materials. The experts at Moss Patrol have years of experience cleaning, treating, repairing and protecting roofs all over Seattle, and Western Washington.
So how exactly does moss damage your roof?
Moss holds moisture onto your roof loosening the surface tension of the tar and shedding granules that protect the structure from uv ray's and inevitable hot/cold cycles.
Moss can actually lead to roof leaks. Moss will start growing under the edge of the shingles. Forming dams that slows water run off, re-directing it into the roofs sheathing.
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After Cleaning