G M Roofing | Roofing Services in Louisville, KY 40291

The black streaks on Louisville roofs are often Gloeocapsa magma algae, which thrives in our humid climate. We use a specialized, low-pressure cleaning solution that safely kills the algae without damaging your shingles. It's crucial to avoid high-pressure washing, as it can strip the protective granules from your asphalt shingles and void warranties. We can also discuss preventative treatments to slow the regrowth.

Chimney flashing is a common leak source in Louisville due to temperature fluctuations and settling, which can break the sealant (caulk) over time. A permanent fix involves a two-part process: first, removing the old, failed caulk and any corroded metal, and then installing new, properly stepped flashing integrated with your roof's underlayment. We ensure a watertight seal that flexes with your home's movement, preventing future leaks.

Absolutely. Our comprehensive roof inspection for Louisville homes specifically checks for algae growth that can degrade shingles and examines all critical leak points, including chimney flashing, vent pipes, skylights, and valleys. We provide a detailed report with photos and clear recommendations, so you understand exactly what needs attention and why, helping you prioritize repairs to protect your investment.