Moss removal that protects the roof instead of damaging it

The fastest way to remove moss from a composition roof is also the fastest way to destroy it. Pressure washing blasts away the mineral granules that shield the asphalt from ultraviolet light. The roof looks clean for a season and then ages several years in the space of one. We do not pressure wash composition roofing, and we would encourage you to be wary of anyone who offers to.

Our approach is gentler and slower: physical removal of heavy growth without gouging the surface, clearing of debris from valleys, gutter lines and behind penetrations so water can actually drain, and treatment appropriate to the roofing material to slow regrowth.

Different materials, different handling

Composition shingle needs the granule surface preserved. Cedar shake needs the wood kept intact and able to dry. Tile is walkable only in specific places and cracks if treated carelessly. Metal handles cleaning well but its fasteners and seams should be checked afterwards. Treating every roof the same way is how cleaning turns into damage.

We look at the roof while we are up there

Cleaning puts a roofer on your roof, which is a good opportunity to notice a split pipe boot, a lifted flashing or a section that is genuinely wearing out. We will tell you what we saw. If it is nothing, we will tell you that too — the point of the visit was the cleaning.

Keeping it from coming straight back

Under heavy tree cover in this climate, moss returns. What changes the timeline is trimming back overhanging branches where practical, keeping debris out of valleys and gutters, and revisiting the roof on a sensible schedule rather than waiting for the growth to become severe again. That is usually best handled as part of regular roof maintenance.