Black streaks are most commonly caused by an airborne algae called Gloeocapsa magma. It thrives in warm, humid climates like South Arkansas and spreads over time if left untreated.

While algae doesn’t usually cause immediate damage, it can trap moisture and contribute to additional organic growth over time. Cleaning your roof before buildup becomes severe helps maintain its appearance and overall condition.

Most roofs benefit from professional cleaning every few years, but the exact timing depends on your environment. Shade, nearby trees, humidity, and rainfall can all cause algae and other organic growth to return more quickly.

Many roofing materials should not be cleaned with high pressure because it can cause unnecessary damage. Professional roof cleaning is typically performed using soft washing, which removes organic growth using specialized cleaning solutions and low-pressure application.

Not necessarily. In many cases, black streaks are caused by algae rather than roof failure. A professional inspection and cleaning can often restore your roof’s appearance without the need for replacement.

Every property is different. Tree coverage, shade, roof orientation, moisture, and even airflow can all affect how quickly algae develops. Two neighboring homes can experience very different levels of organic growth.

Yes. Professional roof washing includes procedures to help protect surrounding plants and landscaping before, during, and after the cleaning process.