Pro Tech Roofing | General Contractors & Roofing in Bainbridge Island, WA 98110

The damp, windy conditions here often compromise the sealant and metal flashing around chimneys. The best fix isn't just a quick caulk job; it often involves carefully removing the old flashing, inspecting the underlying structure for rot, and installing new, corrosion-resistant flashing integrated with a proper water-resistant barrier. This comprehensive approach addresses the root cause for a lasting repair.

Absolutely. Those black streaks are Gloeocapsa magma algae, common in our shaded, humid environment. We use a specialized, low-pressure soft wash treatment with EPA-approved cleaners that kill the algae at its roots without the damaging force of power washing. This safe, effective cleaning restores your roof's appearance and can help extend the life of your shingles.

Proactive maintenance is key. We recommend annual inspections, especially after our wet winters, to catch small issues early. For algae, installing zinc or copper strips near the roof ridge can provide long-term prevention. Ensuring your gutters are clean and trees are trimmed to reduce shade and debris also goes a long way in protecting your Bainbridge Island roof.