Those Black Streaks on Your Lee-Harvard Roof Aren’t Just Dirt — And How to Get Rid of Them

Black streaks on your Lee-Harvard roof are Gloeocapsa magma algae. Learn the causes, risks, and professional solutions for Cleveland’s humid climate.

Black streaks on your Lee-Harvard roof are Gloeocapsa magma algae. Learn the causes, risks, and professional solutions for Cleveland’s humid climate.