Does the tree cover in Camas mean I need my roof cleaned more often?
Generally yes. Camas keeps more conifer canopy than most of Clark County, and constant needle drop fills valleys and gutters faster than it does in more open parts of the county. What matters is clearing the debris, not scrubbing the roof - and never pressure washing it, which strips granules far faster than the moss ever would.
Are Gorge winds really a factor this far west?
Camas sits at the western mouth of the Gorge, so it takes a meaningful share of east wind events without the full force Washougal sees. In practice that shows up as lifted ridge caps and rake edges rather than whole sections of missing shingles. Edge fastening is where it matters.
My house is on Prune Hill with a complicated roofline. Does that change the cost?
It changes the work more than the material. Hillside lots in Camas tend to produce more valleys, dormers, and penetrations, and each one is a place flashing has to be done properly. Expect a quote to reflect complexity and access rather than square footage alone.