Roof soft washing in Raleigh, NC

Algae. It grows well in Raleigh's humidity, especially on shaded slopes. Because it's living growth and not dirt, it has to be treated, not scrubbed.

High pressure can. That's why roofs get soft washed: the solution goes on at about garden-hose pressure and nothing is blasted off the shingles.

Every roof gets a custom estimate. Size, pitch, material and the amount of growth all change the price.

Every two to three years for most roofs here, sooner on heavily shaded ones.

Plants and beds are pre-wet before I start, delicate plants are covered where needed, and everything gets rinsed again when I'm done. Keep pets inside until surfaces are rinsed.