Algae streaks and moss on shaded roofs
Why it happens here
Maitland's tree canopy keeps roofs in the shade for most of the day. That moisture feeds algae and moss, which hold water against the shingles and break down the surface.
Our approach
We clean the roof with a low-pressure treatment that kills the algae at the root, then apply a preventative. We do not pressure wash, which damages shingles.