Reston Roof Repair | Roofing Services in Herndon, VA 20191

Those dark streaks are likely Gloeocapsa magma algae, common here due to our humid climate. We recommend a professional soft wash treatment. This safely removes the stains without damaging your shingles, unlike high-pressure washing which can strip protective granules. We also apply a preventative zinc or copper treatment at the ridge to inhibit future growth.

Flashing corrosion is accelerated by our area's moisture and temperature swings. We inspect for pitting, rust, and separation at valleys, chimneys, and vents. Repair involves removing the compromised flashing, preparing the surface, and installing new, high-grade aluminum or galvanized steel flashing sealed with durable, weatherproof caulking to ensure a long-lasting, watertight seal.

Absolutely. A comprehensive roof assessment and maintenance visit often addresses both. We start with a full inspection, secure any compromised flashing to prevent water intrusion, then proceed with a gentle roof cleaning to restore appearance. This combined approach is efficient and cost-effective for maintaining your Herndon home's roof health.