Dfd Roofing | Roofing Services in New Haven, CT 06511

Those black streaks are likely Gloeocapsa magma algae, common in our humid climate. We use a specialized, low-pressure cleaning solution that kills the algae and washes it away without damaging your shingles' protective granules. It's important to avoid high-pressure washing, which can shorten your roof's lifespan.

Signs include a spongy feeling when walking on the roof, interior water stains, or sagging sections. In New Haven, rot often starts where moisture is trapped. Our repair involves carefully removing the affected shingles and plywood, treating the surrounding area to prevent mold, and installing new, dry decking before re-shingling to match your existing roof.

Absolutely. A professional inspection can identify early signs of algae growth, moisture buildup, or vulnerable spots long before major damage like deck rot occurs. We recommend an annual check, especially after winter, to ensure your roof's ventilation and drainage are working properly to combat our local humidity.