EF0 tornado 3 mi WNW of Johnstown
An EF-0 tornado with path length of 0.30 miles and a maximum path width of 80 yards occurred west of Bicknell. Damage mainly to large tree limbs and metal outbuilding roofs. Peak winds were 85 mph.
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TPO is a heat-welded single-ply membrane common on commercial and low-slope roofs. It is white and reflective, and seam quality is what mostly decides its lifespan.
For Knox County, NOAA lists 6 hail reports (largest 2 in), 44 damaging-wind reports (up to 70 mph) and 2 tornado reports from January 2024 to June 2026. These count reports, not damaged roofs.
An EF-0 tornado with path length of 0.30 miles and a maximum path width of 80 yards occurred west of Bicknell. Damage mainly to large tree limbs and metal outbuilding roofs. Peak winds were 85 mph.
Scattered trees and utility lines downed by thunderstorm winds around Vincennes.
Scattered trees and utility lines were downed from thunderstorm straight line winds north of Bicknell.
Source: NOAA NCEI Storm Events Database, data through Jun 30, 2026. All storm reports for Emison
| Job | Typical US range |
|---|---|
| Flat roof (TPO / EPDM), average home | $5,000 – $12,000 |
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.
A thermoplastic polyolefin single-ply membrane whose seams are heat-welded; common on flat commercial roofs.
Both work. TPO is heat-welded and reflective; EPDM is a rubber membrane with glued or taped seams. Installer experience matters more than the name.
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.
Yes. RoofersNearMeHub is free for homeowners. Roofing companies that receive your request may pay us for the introduction; you are never obliged to hire anyone.
