52 mph estimated gust 1 mi NE of South Knoxville
Strips of green tin roof were peeled off an inn on Chapman Highway by severe thunderstorm wind gusts.
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Flat and low-slope roofs hold water longer, so small defects in the membrane, seams or drains turn into leaks quickly. Common membranes are TPO, EPDM, modified bitumen and built-up roofing.
For Knox County, NOAA lists 19 hail reports (largest 1.75 in), 38 damaging-wind reports (up to 63 mph) and 0 tornado reports from January 2024 to June 2026. These count reports, not damaged roofs.
Strips of green tin roof were peeled off an inn on Chapman Highway by severe thunderstorm wind gusts.
Multiple trees and powerlines were blown down across Knoxville by severe thunderstorm winds, with at least one tree falling on a home in East Knoxville.
A 36 inch diameter oak tree was felled by severe thunderstorm winds and sliced through the side of a home, requiring the fire department to extricate 1 person. No confirmed injuries. Fire department reported another tree falling on a...
Source: NOAA NCEI Storm Events Database, data through Jun 30, 2026. All storm reports for Karns
| Job | Typical US range |
|---|---|
| Flat roof (TPO / EPDM), average home | $5,000 – $12,000 |
| Minor roof repair (leak, flashing, a few shingles) | $350 – $1,500 |
| Larger repair or partial re-roof | $1,500 – $5,000 |
National planning ranges for an average ~2,000 sq ft home, not quotes. Local labor, roof pitch, layers to remove, materials and permits change the price.
Ponding water, failed seams, punctures, worn flashing and clogged drains are the usual causes.
Localized damage can be patched. If the membrane is old or wet insulation is widespread, replacement or a recover system may be the better value.
Many cities and counties require a building permit for roof work; the roofing company normally pulls it. Ask who is responsible and request a copy. Check with the Knox County building department for local rules.
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