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Roof Streaks in West TN: What Causes Them & How We Treat Them

If you’ve noticed dark streaks running down your roof, you’re not alone. Many homeowners in West Tennessee see these unsightly stains and assume it’s just dirt or wear from the weather. In reality, those roof streaks are often caused by an organism that thrives in humid regions like ours. At H2O Obsessions, our experienced residential pressure washing team knows exactly how to identify, treat, and prevent this problem with safe and proven roof cleaning techniques.

What Causes Roof Streaks? 

The most common culprit behind those black or dark brown streaks is Gloeocapsa magma, a type of blue-green algae. This algae feeds on the limestone filler found in asphalt shingles, creating those streaks as it spreads. Over time, it doesn’t just make your roof look bad—it can also trap moisture and shorten the lifespan of your shingles.

A few other contributors to roof discoloration include:

• Moss and lichen growth that traps water and leads to decay
• Airborne debris that settles and holds moisture
• Poor ventilation or drainage that keeps certain areas damp longer

Each of these factors adds up to a less efficient, less appealing roof. But the good news is, our team specializes in restoring your roof’s appearance and health safely and effectively.

Our Proven Roof Cleaning Solution

At H2O Obsessions, we don’t just blast away stains with high pressure. We use the roof soft wash method, a gentle but powerful cleaning approach designed specifically for delicate roofing materials. This process uses low pressure and specialized cleaning solutions to dissolve algae, mildew, and grime without risking shingle damage.

Our treatment for black algae removal goes beyond surface-level cleaning. The soft wash solution kills the algae at its source, preventing regrowth for months or even years. Once rinsed, your roof’s true color shines through, and your home’s curb appeal gets an instant boost.

As a first-rate pressure washing crew serving Jackson, we understand that every roof is different. We carefully assess roof material, slope, and age before starting, ensuring a safe and thorough clean every time.

Why Roof Cleaning Matters 

Regular roof cleaning is one of the simplest ways to extend the life of your roof and maintain your home’s value. Algae, moss, and lichen can slowly erode shingles and trap moisture, leading to costly repairs or premature replacement. A clean roof doesn’t just look better—it performs better too, reflecting sunlight and keeping your home cooler in the Tennessee heat. Whether you’re planning to sell your home or want to schedule commercial pressure washing for your business exteriors, professional cleaning is also a quick, affordable way to enhance your property’s appearance and make a strong first impression on buyers.  

Don’t let black streaks drag down your home’s beauty or your roof’s longevity. Trust the experts at H2O Obsessions for safe, effective roof cleaning and black algae removal. Contact us today to schedule a professional roof soft wash and see why Jackson homeowners count on us to keep their roofs looking brand new.