52 mph estimated gust 1 mi SSW of Glen Cliff
Thunderstorm winds downed trees and affected barns across Warren County.
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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 Warren County, NOAA lists 3 hail reports (largest 1 in), 5 damaging-wind reports (up to 55 mph) and 2 tornado reports from January 2024 to June 2026. These count reports, not damaged roofs.
Thunderstorm winds downed trees and affected barns across Warren County.
An EF-0 tornado with path length of 10.53 miles and maximum width 75 yards traveled across mostly rural areas of northern Warren County. The peak winds were 85 mph with the tornado causing mainly sporadic tree damage with corn fields...
Numerous trees downed by thunderstorm winds.
Source: NOAA NCEI Storm Events Database, data through Jun 30, 2026. All storm reports for Williamsport
| 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 Warren County building department for local rules.
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