J Bernaur Roofing | Roofing Services in Marcus Hook, PA 19061

Those dark streaks are typically a type of algae that thrives in our humid climate. While often mistaken for dirt or mold, it can trap moisture and slowly degrade shingles. At J Bernaur Roofing, we use a specialized, low-pressure cleaning solution that safely eliminates the algae without damaging your shingles. For long-term protection, we can also install zinc or copper strips at the roof ridge, which inhibit future growth with each rainfall.

Signs of roof deck rot in Marcus Hook often include sagging roof lines, interior water stains, or a spongy feeling when walking on the roof. The problem usually starts from trapped moisture due to poor ventilation or undetected leaks. Our repair process begins with a detailed inspection to assess the damage. We then carefully remove the affected shingles and plywood sheathing, replace any rotted decking with new, treated wood, and ensure proper ventilation is reinstated to prevent recurrence.

Prevention starts with regular maintenance. We recommend an annual inspection, especially after severe weather, to catch minor issues early. Ensuring your attic has adequate ventilation is crucial to reducing moisture buildup that leads to algae and rot. Keeping gutters clean and trees trimmed back from the roof also helps. We're happy to provide a complimentary evaluation to give you a tailored maintenance plan for your Marcus Hook home.