Moss and lichen roof cleaning at Shaver Lake

Roofs at Shaver Lake spend a lot of time in the shade. Tall pines block the sun, snow sits on the shingles for weeks, and needles collect in valleys and behind chimneys, where they hold moisture against the surface. Moss, lichen and algae thrive in those conditions. You’ll often see bright green moss along a north slope, crusty gray or yellow lichen patches scattered across the shingles, and dark streaks running down from the ridge. Left alone, that growth keeps the roof damp and makes a cabin look much older than it really is.

We clean roofs with a soft wash, never a pressure washer. High pressure can strip the protective granules from asphalt shingles and crack or loosen tiles. Instead we pre-rinse your landscaping, apply a cleaning solution at low pressure to the growth and give it time to work before a gentle rinse. Gutters and the walls below get rinsed too. Moss and thicker lichen don’t always disappear right away. Some of it keeps loosening and fading over the following weeks as weather rinses it away, which is normal for this kind of cleaning.

Mountain roofs come with seasonal limits. A roof covered in snow, ice or a layer of wet needles isn’t safe to work on, so roof cleaning usually happens between late spring and fall. Pairing it with a gutter clean-out makes sense, since the same trees feed both problems. Trimming branches back from the roof also slows the return of growth. We serve Shaver Lake homes, cabins and commercial buildings from our base in Fresno and Clovis. Our crew is licensed and insured, the estimate is free, and our 100% satisfaction guarantee means we come back if something isn’t right.