Dave's Roofing | Roofing Services in Moline, IL 61265

In Moline, roof valley leaks are frequently caused by a combination of heavy rain, ice dam formation in winter, and worn or clogged valley flashing. Debris like leaves and branches from our local trees can accumulate, preventing proper water runoff and leading to leaks. We fix it by first clearing all debris, then carefully inspecting the valley flashing for damage or separation. Repairs often involve sealing seams, replacing damaged sections with new, heavy-gauge metal flashing, and ensuring proper integration with the surrounding shingles to restore a watertight channel.

Flashing separation is very common here due to our significant temperature swings and high winds. The metal expands and contracts with the seasons, and over time, the sealant can fail, or the fasteners can loosen, causing gaps around chimneys, vents, and walls. Yes, it is a serious issue. Even a small separation can allow significant water intrusion into your attic and walls, leading to mold, rot, and structural damage. We address this by removing old caulk, re-securing the flashing with corrosion-resistant fasteners, and applying new, high-grade sealant designed to withstand our local climate.

Great question. Start by looking for clues inside your home. Water stains on your ceiling that run in a straight line, often aligned with the roof's slope, can point to a valley leak. For flashing issues, look for moisture or stains on interior walls near the chimney or where a roof meets a sidewall. From outside, check for visible gaps, rust, or lifted metal around flashing points, and look for debris buildup or damaged shingles in the roof valleys. If you see any of these signs, it's wise to schedule a professional inspection with us to pinpoint the exact cause and prevent further damage.