A&A Roofing | Roofing Services in Philadelphia, PA 19140

Those dark streaks are likely roof algae, a common issue in our humid Philadelphia climate. Algae feeds on the limestone filler in asphalt shingles and thrives in shaded, damp areas. A&A Roofing can safely and effectively remove these stains using specialized, low-pressure cleaning solutions that kill the algae without damaging your shingles. We can also apply preventative treatments to help keep the algae from coming back.

Flashing rust is a serious concern for Philadelphia homes due to our seasonal moisture and temperature swings. Rusted flashing can crack and create gaps, allowing water to seep into your roof deck, attic, and walls, leading to costly interior damage. A&A Roofing provides expert flashing inspection and repair. We'll assess the extent of the rust, seal any compromised areas, or perform a complete replacement with durable, rust-resistant materials to restore a watertight seal.

The best protection is a combination of proactive maintenance and quality materials. We recommend scheduling a professional inspection with A&A Roofing at least once a year, especially after severe weather. We'll check for early signs of algae growth and flashing corrosion. For long-term prevention, we can install algae-resistant shingles and use galvanized steel or aluminum flashing, which are more resistant to the rust common in our local environment. A small investment in prevention can save you from major repairs.