Lilburn Forensic Weather & Hail Impact Report

Look, I’ve been replacing roofs in Gwinnett County for over fifteen years, and if there’s one thing I tell every homeowner in Lilburn, it’s that we’re sitting right in the bullseye for hail damage. It’s not just bad luck—it’s the geography. We’re nestled right in that corridor where warm, moist air from the Gulf slams into cooler mountain air coming down from the Blue Ridge. That collision happens almost directly over our heads, and it’s why our spring and early summer storms roll in so violently. Those supercell thunderstorms don’t just bring rain; they churn up hailstones the size of golf balls or bigger, and they’re coming down at a steep angle with all that wind behind them. I’ve seen brand new architectural shingles look like someone took a ball-peen hammer to them after a single May storm.

And it’s not just the hail—the wind is the silent killer of roofs around here. We get those intense derecho events, especially in late June and July, where straight-line winds can hit 70 or 80 miles an hour, which is basically a weak tornado without the rotation. The problem is our older neighborhoods, like those off of Killian Hill or around Parkview, have mature oak and pine trees that act like wind tunnels, funneling gusts right down the rooflines. That wind gets under the shingle tabs and lifts them, and once the seal is broken, the next storm peels them right off. Plus, with our clay soil, the ground shifts after heavy rain, which can warp the roof deck just enough to make those shingles brittle and prone to cracking. So when you hear thunder rumbling from the west, just know that your roof is taking a beating from two angles at once—and it’s not a matter of *if* you’ll need repairs, but *when*.