Why Salem roofs grow moss
Marion County records about 40.7 inches of annual precipitation, with mild winters that keep roofs damp for months. Mature Douglas fir, big-leaf maple and oak shade many Salem lots, especially in older neighborhoods, and shade is what moss needs most.
What we hear about most
- North-facing slopes that never dry out
- Roofs under mature trees, with needles in the valleys
- Gutters packed with moss and granules after a wet winter
Get a Salem quote
Tell us about the roof in the quote form. Read what moss removal costs in Salem first if you want a reference number: HomeAdvisor lists a Salem roof cleaning average of about $420.