Roberson Mendel Roofing | Roofing Services in Greenville, SC 29611

Those dark streaks are likely Gloeocapsa magma, a common algae in our humid climate. While it can be unsightly, it can also retain moisture and degrade shingles over time. We recommend a professional soft wash treatment, not high-pressure washing which can damage shingles. We can also apply a zinc or copper strip treatment at the roof's peak to prevent future growth, a highly effective solution for Greenville homes.

While we get significant rainfall, consistent overflow usually indicates an issue. Common causes in our area include undersized gutters for your roof's pitch, clogs from pine needles and leaves, or improper slope/placement. We can assess your system, recommend solutions like larger 6-inch gutters or adding more downspouts, and ensure proper installation to handle our local downpours and protect your home's foundation and siding.

Proactive maintenance is key. We recommend bi-annual gutter cleaning, especially in fall and spring, to prevent overflow and ice dams. Schedule a professional roof inspection every 2-3 years to check for early signs of algae, damaged or missing shingles, and to ensure seals around vents and chimneys are intact. This preventative approach can catch small issues before they become major, costly repairs from our variable weather.