Global Construction | Roofing Services in Philadelphia, PA 19149

The most effective strategy combines professional preventative treatments and proactive maintenance. We apply EPA-approved, non-corrosive moss inhibitors during our cleanings, which are safe for your shingles and local environment. Equally important is ensuring proper roof ventilation and trimming back overhanging tree branches to reduce shade and moisture—two things moss thrives on in our humid climate.

In Philadelphia, flashing separation is often caused by our temperature extremes, which cause materials to expand and contract repeatedly. A temporary sealant patch is a common short-term fix, but for a permanent solution, we recommend a full flashing replacement using more flexible, high-grade metals and precision installation techniques. This addresses the root cause and provides a long-lasting, watertight seal.

Absolutely. We frequently perform combined services for Philadelphia homeowners because these issues are often related. Moss can trap moisture against flashing, accelerating corrosion and separation. Our process starts with a safe, thorough roof cleaning to remove all organic growth, followed by a detailed inspection and repair of any compromised flashing. This comprehensive approach saves you time and ensures your entire roof system is protected.