PVC Roofs in Woodbridge, VA: What Fifteen Wind Entries Do and Do Not Prove
From 2015 through September 2026 the federal storm database carries 15 thunderstorm wind entries and 2 hail entries with a Woodbridge label. None of them names a roof, and none names PVC. A storm is a reason to look at a flat roof. It is not evidence for or against one membrane.
The nearest thing to a roof
Which county storm entry actually mentions a roof coming off?
A wind gust of 63 mph was reported at Quantico. Numerous trees were down across the county. A roof was ripped off an autobody shop at the 18400 Block of Jefferson Davis Highway.
NOAA National Centers for Environmental Information, Storm Events Database, event 746522, High Wind, Prince William County, March 2, 2018.
The Woodbridge label, year by year
What does the record hold under the Woodbridge name?
Entries for Prince William County whose location label is Woodbridge or Woodbridge Arpt, from the 2015 through September 2026 bulk files. The damage figure is NOAA's own field, entered in thousands of dollars,.
| Year | Wind entries | Strongest gust, knots | Hail entries | Largest damage entry |
|---|---|---|---|---|
| 2015 | 1 | 52 | 0 | 2.00K |
| 2016 | 6 | 52 | 1 (1.00 in) | none entered |
| 2017 | 2 | 52 | 0 | none entered |
| 2019 | 2 | 50 | 1 (0.75 in) | none entered |
| 2020 | 1 | 55 | 0 | 15.00K |
| 2022 | 2 | 45 | 0 | 1.00K |
| 2026 | 1 | 56 | 0 | 25.00K |
| 2018, 2021, 2023 to 2025 | 0 | none | 0 | none |
Two neighbours of this table are worth knowing. On May 2, 2016 the same storm produced hail entries labelled Occoquan of 1.75, 1.75 and 2.25 inches, the largest hail entry in the county's 2015 to 2026 list. On August 14, 2023 a 52-knot entry labelled Occoquan has a narrative that begins "Several trees and wires blew down in Woodbridge." The strongest Woodbridge-labelled gust, 56 knots on June 22, 2026, is about 64 mph, and its narrative reads "Numerous trees blew down in and around Woodbridge."
Reading an entry
How do you read one of these entries without over-reading it?
- Location labelWhere NOAA says it happened
- A nearby reference point, not the Census place. The June 23, 2015 entry labelled Woodbridge Arpt describes a tree on a home in Lake Ridge, a separate community.
- MagnitudeWind in knots, hail in inches
- Gusts are marked EG (estimated) or MG (measured). A knot is about 1.15 mph, so 52 knots is roughly 60 mph.
- SourceWho reported it
- The Woodbridge entries come from 911 call centers, trained spotters, the public, an emergency manager and a state official. That is a report, not a roof survey.
- NarrativeWhat was seen
- Trees, branches, wires and, once, "a tree fell onto a house and deck" (April 6, 2017). No Woodbridge-labelled narrative names a roof covering.
After the wind
What should a flat-roof owner look at once a storm has passed?
The Single Ply Roofing Industry association's maintenance answer asks for a check after any major storm. These are the three spots it names, with our reading of what each can mean.
Loose edge metal or fasteners
- What you see
- Metal along the perimeter that has lifted, shifted or shows backed-out screws.
- What it can mean
- The edge took load in the wind, and water can now reach the membrane edge.
- Who to call
- The building owner or manager first, then a roofer for a closer look.
Flashing around penetrations
- What you see
- Gaps or lifted material around pipes, vents and equipment curbs.
- What it can mean
- A path for water at the spots where the membrane is cut.
- Who to call
- The party that installed the roof, if known, or any roofer you trust.
Debris and drains
- What you see
- Branches or leaves against a drain, or water standing near it afterwards.
- What it can mean
- Blocked drainage, which is easy to clear and worth clearing early.
- Who to call
- Building maintenance, then a roofer if the water stays.
Choosing PVC
What can the storm record settle about the membrane, and what can it not?
- It cannot pick a membraneNo entry says what covered any roof. A gust figure does not rank PVC against TPO or EPDM.
- Name the standardThe 2021 International Building Code table lists PVC under ASTM D4434. Ask for that number on the data sheet so the quote names the sheet.
- Hail is not a ratingThe code asks low-slope coverings to resist impact damage by named tests, among them ASTM D3746 and D4272. Our reading: those tests are not the hail sizes in the table, so ask what a listing actually covers.
- Wind belongs to the assemblyAsk for the uplift test listing of the whole roof assembly, not only the membrane.
- Condos and apartmentsPrince William County treats these as commercial projects and points to Building Development, 703-792-6930. The house and townhouse list is on our Woodbridge page.
Background: flat roof and roofing materials. Other Woodbridge membranes and metal: TPO, EPDM and metal.
Questions
Storm-record questions from Woodbridge owners
Has NOAA recorded hail in Woodbridge?
Two entries carry a Woodbridge label: 1.00 inch on May 2, 2016 and 0.75 inch on September 2, 2019. Larger hail in that 2016 storm was labelled Occoquan.
How strong was the strongest Woodbridge-labelled gust?
56 knots, about 64 mph, on June 22, 2026, with a damage entry of 25.00K and a narrative about trees.
Does any entry say a PVC roof failed?
No. No Woodbridge-labelled entry names a roof or a roof material.
Does a tree falling on a house mean the roof was damaged?
The entries do not say. The April 6, 2017 narrative says a tree fell onto a house and deck, and stops there.
Is NOAA's Woodbridge label the same as the Census place?
Not necessarily. The label is a reference point, and one 2015 entry under it describes a home in Lake Ridge.
Where can I check these entries myself?
Open the NCEI Storm Events Database, choose Virginia and Prince William County, and read each narrative.
How soon after a storm should a low-slope roof be checked?
The industry association's answer is after any major storm, looking at the perimeter metal, the flashings around penetrations and the drains.
Nearby PVC pages: Springfield and Alexandria. For the county rule and Lake Ridge approvals, see roofers in Woodbridge.
Official pages used
Checked October 15, 2026: the NCEI Storm Events Database and its bulk files for 2015 to 2026 (the 2026 file ends in September); SPRI frequently asked questions; Prince William County, Do I Need a Permit?. Code and test references are carried from our October 11 research pack, not reopened today. NOAA's entries are reports and carry no roof survey.
Talk through the next step
Tell us what the storm left you with
Give us the street, the building type and what you saw after the wind. We will say what to look at first and who has to approve a change before any membrane is named.
9220 Topaz St, Fairfax, VA 22031
Mon to Fri 7 AM to 8:30 PM, Sat 7 AM to 8 PM, closed Sunday