Perez Roofing - Pittsburgh's Top-Rated Roofing Services

Granule loss from asphalt shingles is a common sign of aging in Pittsburgh's variable weather. While granules protect the shingle from UV rays, their loss exposes the asphalt matting, making it brittle and prone to cracking. Our waterproofing installation creates a secondary, seamless barrier beneath your shingles. This system catches any water that penetrates through compromised shingles, channeling it safely off your roof and preventing it from soaking into your decking and attic, which is a critical line of defense as your roof ages.

Moss growth, often seen on north-facing slopes in Pittsburgh, traps moisture against your roof surface, accelerating decay. We first assess the extent of the damage. A targeted moisture control repair may suffice if the moss has only caused localized wood rot or lifted a few shingles. However, if the moss and trapped moisture have compromised the roof's underlayment or ventilation over a larger area, a comprehensive moisture control installation is recommended. This system addresses the root cause by improving ventilation to keep the roof deck dry and installing protective membranes to shield vulnerable areas from future moisture damage.

For a leak stemming from granule loss or moss-related damage, our repair process is thorough. We don't just patch the visible leak. We start by safely removing any moss and cleaning the area. Then, we inspect and replace any rotted decking. The key step is installing a new, high-grade waterproofing membrane—like ice and water shield—over the repaired decking and extending it up the roof slope to cover vulnerable areas. This repair seals the specific problem area and reinforces it against future water intrusion, ensuring the fix is durable and addresses the underlying moisture issue common in our climate.