Those black streaks running down your shingles aren't dirt. They're a living algae that feeds on the limestone in asphalt shingles, and moss can follow. Left alone, they make a good roof look old and can shorten its life.
We never pressure wash a roof. High pressure blasts off the protective granules. Instead we apply a soft wash solution at low pressure that kills the algae and moss, then let it work and rinse. The streaks fade away, often over the next few rain cycles for heavier growth.
Is it safe for my shingles? Yes. Soft washing is the method roofing manufacturers recommend for cleaning asphalt shingles.
How long does it stay clean? Usually several years, depending on shade and trees.
Do you walk on the roof? We stay off the roof whenever we can. If an area is tough to reach from the ground, we'll carefully get up there so nothing gets missed.
Service area: Livonia, Northville, Novi, Farmington Hills, Plymouth and Canton.
Our guarantee: Not happy with any area we cleaned? Tell us within 48 hours and we'll come back that Saturday and re-clean it free.
