Bobby Boothe Roofing | Roofing Services in Abingdon, VA 24210

Those dark streaks are algae stains, often called Gloeocapsa magma, which thrive in our humid climate. They feed on the limestone filler in asphalt shingles. We don't recommend high-pressure washing, as it can damage granules. Instead, we use a specialized, low-pressure cleaning solution that safely kills the algae and restores your roof's appearance without harming the shingles.

Flashing separation around chimneys, vents, and valleys is common here due to the expansion and contraction from our temperature swings. Improper installation or aged sealant can worsen it. Our repair involves carefully removing the compromised flashing, inspecting the underlying deck for rot, and installing new, code-compliant flashing with high-grade sealants to create a durable, watertight seal that withstands our local weather.

Proactive maintenance is key. We recommend annual visual inspections, especially in spring and fall. Keep gutters clean to prevent water backup, trim overhanging branches to reduce shade and moisture that encourage algae, and schedule a professional inspection every few years. We can spot early signs of flashing wear or algae growth and address them before they lead to costly leaks or damage.