Vandermark Roofing | Roofing Services in Wallkill, NY 12589

Those common black streaks are actually a type of algae that thrives in our humid climate. Pressure washing can damage shingles. We recommend a professional, low-pressure soft wash with specialized cleaning solutions to safely remove the stains without harming your roof's protective granules, helping to restore its appearance and health.

Shingle curling in our area is often caused by moisture trapped in the attic from poor ventilation or thermal shock from temperature swings. It's a sign of aging and reduced protection. Yes, it's serious—curled shingles are more vulnerable to wind uplift and water infiltration. We can inspect your attic ventilation and roof deck to diagnose the cause and recommend targeted repairs or a replacement plan.

Prevention is key. We advise scheduling a professional roof inspection at least once every two years, especially after severe weather. Ensuring your attic has proper intake and exhaust ventilation is crucial to prevent heat and moisture buildup that leads to algae and curling. Keeping gutters clean and trimming overhanging tree branches also significantly reduces the risk of these local problems.