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Metal roofing in Burke, VA: what the storm rows, wind tables and hail tests say
NOAA's Storm Events files hold 13 Fairfax County wind rows that mention Burke, and 12 of them describe fallen trees. One describes roofs lifted off townhomes. This page reads that record beside the county's design wind speed, the tests the code names for metal roofing and the way hail dents are judged. Where a source is silent, the page says so.
- 13 NOAA wind rows mention Burke; 1 describes roofs lifted
- 115 mph: county ultimate wind speed, Residential
- Largest hail row in the county files: 1.75 in.
The NOAA record, row by row
The National Centers for Environmental Information publish Storm Events detail files. For this page the 2016 through 2026 files were downloaded on October 18, 2026 and counted the next day: 792 rows for Fairfax County. A search for the label Burke returns 17 rows, 15 of them floods. Widen the search to the word Burke anywhere in a label or narrative and it returns 37 rows, 13 of them wind, none hail and none tornado. The Burke roofing guide covers permits and covenants; this page stays with weather and metal.
| Date | NOAA label | Gust, kt | What the narrative says, in brief |
|---|---|---|---|
| Apr 6, 2017 | Fairfax Station | 52 | Large tree blocking the Fairfax County Parkway near Burke Center Parkway |
| May 18, 2017 | Sideburn | 50 | Tree down near Burke Common Road |
| May 18, 2017 | Fairfax Station | 50 | Tree down at Burke Center Parkway and Ox Road |
| Jul 20, 2020 | Fairfax Station | 50 | Trees down between Fairfax Station and Burke |
| May 26, 2021 | Springfield | 50 | About half a dozen tree reports across Springfield, Burke and Annandale |
| Jul 1, 2021 | Fairfax Station | 50 | Limbs and a tree down near Burke Center Parkway |
| Jul 1, 2021 | Burke | 50 | Trees down at Burke Lake Road and Braddock Road |
| Jun 2, 2022 | Fairfax Station | 50 | Tree down at Ox Road and Burke Centre Parkway |
| Jun 27, 2023 | Sideburn | 50 | Trees onto Braddock Road near Burke Station Road |
| Jul 29, 2023 | Fairfax Park | 52 | Trees down near Burke and Springfield, one onto a house on Langport Drive |
| Aug 7, 2023 | Sideburn | 56 | Numerous trees in Burke, one onto an apartment building on Chase Commons Court |
| Aug 14, 2023 | Fairfax Station | 52 | Several trees near Burke and Fairfax Station |
| Jun 22, 2026 | Sideburn, ends at Burke | 78 | Downburst; townhomes facing Lake Royal lost significant portions of their roofs |
Source: NOAA NCEI Storm Events Database. Every gust is a magnitude of type EG, which NOAA marks as estimated.
The labels are reference points, not neighborhoods. Six rows begin at Fairfax Station and four at Sideburn, so a reader of only the Burke label sees two wind rows and misses eleven. Twelve rows describe trees, limbs, wires or blocked roads; the last is the only one that describes roofs.
Knots, gusts and design speeds
- Weather service gusts
- Knots, estimated from damage. The Storm Prediction Center calls a storm severe at 58 mph, printed as 50 knots, and significant at 75 mph, or 65 knots. Twelve Burke rows sit between 50 and 56 knots. The 78-knot row works out to about 90 mph, the peak its survey narrative estimates.
- County design table
- An ultimate wind speed of 105 mph for Risk Category I, 115 mph for Category II and Residential, and 120 mph for Category III. It feeds the roof uplift table and is a design value, not a measured gust.
The code's metal shingle table pairs ultimate speeds up to 116 mph with an allowable-stress speed of 90 mph. That 90 is a conversion of a design speed. The 90 in the survey narrative is a peak gust estimated from damage. The two are not a comparison, and no source opened for this page says whether the Lake Royal roofs met or missed the table. An engineer who has seen them would have to say.
Uplift and the load chain
The Metal Construction Association, a trade body, describes wind over a roof as suction: air is redirected up and over the building, and negative pressure forms over some zones. Its paper ranks the zones: corners take the greatest effect, perimeters come next, and the field of the roof takes the least.
"with the weakest link representing the point of failure"
Metal Construction Association, Metal Roofing From A to Z, Part 6, read October 19, 2026The same paper says the weak link is frequently the seam. A panel seam can unravel under pressure or lift off its attachment clip. It names three test methods for the assembly: UL 580, Factory Mutual 4471 and ASTM E1592. Its author adds, in his opinion, that the tests give conservative results and cannot reproduce the gusty pressure of a microburst, and that most were designed for structural panels over open framing.
What the code names for metal
Virginia's 2021 Residential Code, chapter 9, treats metal in more than one place, and the wording differs by product. The text below is from UpCodes, a third-party copy.
Metal roof shingles
Tested to ASTM D3161, FM 4474, UL 580 or UL 1897. If D3161 is used, the package carries a label with the class. The row for speeds up to 116 mph accepts class A, D or F; class F alone appears from the 142 mph row up.
Metal roof panels
Secured to the supports per the chapter and the manufacturer's instructions. This section prints no test sentence and no class table.
All roof coverings
Section R905.1 says coverings resist the component and cladding loads in the code table, adjusted for height and exposure, unless a section says otherwise.
Hail
The word does not appear in the chapter. The county design table has no hail line either.
A September 2025 Metal Construction Association paper quotes the International Building Code on metal panels. Panel systems over a solid or closely fitted deck are tested to FM 4474, UL 580 or UL 1897. Structural standing-seam systems are tested to ASTM E1592 or FM 4474, and structural through-fastened systems to ASTM E1592, FM 4474 or UL 580. Virginia adopts the model code with amendments, so which text governs a Burke house or business park is a question for Fairfax County. The paper adds that an evaluation report is not a code approval; the building official decides.
Hail, dents and the word cosmetic
Of the 40 hail rows in the county files, 23 are 1.00 inch, and the largest is 1.75 inches. The timeline lists the three largest and the rows labeled Fairfax Park.
- May 2, 2016, Fairfax Park1.00 inch. The same label appears on the July 29, 2023 wind row that says trees fell near Burke and Springfield.
- May 14, 2018, Sunset Hills1.75 inches, the first of three rows at that size.
- Aug 13, 2018, Fairfax Park1.50 and 0.75 inches in two rows.
- Jun 2, 2019, Great Falls1.75 inches.
- Aug 13, 2021, Oakton1.75 inches, the last of the three. No row reaches 2 inches.
"no currently established direct correlation"
UL 2218 scope, between steel-ball performance and hailstone performance, read October 19, 2026UL 2218 rates a steep-slope covering in four classes by dropping steel balls, and the IIBEC paper below lists the ball sizes as 1.25, 1.50, 1.75 and 2.00 inches. UL's scope adds that the test does not evaluate weathering or aging.
The International Institute of Building Enclosure Consultants reports that insurers now write exclusions or endorsements limiting coverage to functional hail damage. Its paper gives the working definitions: cosmetic damage changes appearance only, and functional damage reduces water-shedding or expected service life. The dispute centers on dents that have not split or punctured the metal or disengaged a seam.
The authors dented one coated steel panel with steel balls up to 2 inches, ran a 336-hour salt-spray test and found no corrosion at the dents. Field panels hit by hail up to about 2.5 inches showed none either. Corrosion did appear at foot-traffic buckles and scuffs. The work covers that coated steel only, and the earlier research it builds on was commissioned by a metal building manufacturers' association.
Your policy's wording governs. The roofing insurance explainer sets out how to read a policy before a loss.
What to ask for in writing
- The wind test report or evaluation report for the exact assembly named in the quote: profile, clip or fastener, spacing and deck, not a sister product.
- The fastener or clip schedule for corner and edge zones, which the code table loads more heavily than the field.
- Which section the county applies to your roof, and the design wind speed it uses. Fairfax County lists 115 mph for Residential.
- Whether the product is a metal shingle with a labeled class or a panel covered by the manufacturer's instructions.
- The UL 2218 class on the data sheet, if any, remembering UL's own caveat about hailstones.
- The cosmetic damage language in your own policy, before you sign a contract.
- Your Conservancy and county steps, which the Burke guide lays out.
Roofers of Arlington installs, repairs and replaces roofs, including flat and metal systems; the services page lists what is covered, and roof replacement explains a replacement scope. For the general metal topics see metal roofing and roofing materials. Book a phone consultation to talk through a Burke metal roof: we would ask your address, whether the home is detached, a townhouse or a condominium, what is visible from the ground and which of the documents above you hold. See service areas.
Pages and files behind this guide
Every source below was opened on October 19, 2026, except the NOAA files, which were downloaded on October 18.
- NOAA NCEI Storm Events Database, detail files 2016 to 2026
- NOAA Storm Prediction Center: About, definitions of severe weather
- Fairfax County Land Development Services: Codes and Standards, local design load criteria
- Virginia Residential Code 2021, chapter 9 and chapter 3, as shown on UpCodes (third-party copy)
- Metal Construction Association: Metal Roofing From A to Z, Part 6, Attachment of Metal Panels
- Metal Construction Association: Roofing Best Practices, FORTIFIED Home Program (9/2025)
- UL Standards and Engagement: UL 2218, scope
- IIBEC Interface, Fall 2025: A Deep Dive into Hail-Caused Dents
Questions people ask
Does NOAA record hail in Burke?
Not in the files read for this page. The Storm Events detail files for 2016 through September 2026 hold 40 hail rows for Fairfax County, and none has Burke in its place label or narrative. The largest is 1.75 inches. A row is one report, so an empty Burke column does not prove no hail fell.
Why do more Burke wind rows turn up than a search of the Burke label shows?
NOAA files each row under a nearby reference place, not under the neighborhood in the text. Of 13 wind rows that mention Burke, one begins at the label Burke, six at Fairfax Station, four at Sideburn, one at Springfield and one at Fairfax Park. Search the narratives as well as the labels.
What wind speed does Fairfax County use for a house roof?
The county's Codes and Standards page lists an ultimate wind speed of 115 mph for Risk Category II and Residential. That is a design value, not a forecast. The code turns it into uplift figures by roof zone, higher at corners and edges than in the field.
Does the Virginia code require a wind test for metal roof panels?
The metal roof shingle section requires testing to one of four named standards. The metal roof panel section prints no matching test sentence and says panels are secured per the chapter and the manufacturer's instructions. A trade paper quotes the International Building Code as naming tests for metal panel systems. Ask the county which applies.
Is a dented metal roof a damaged metal roof?
It depends on the definition in force. An industry paper separates cosmetic dents, which change appearance only, from functional damage, which reduces water-shedding or expected service life. Its tests on one coated steel found no corrosion at dents. Your own policy wording decides a claim.
What does a UL 2218 impact class say about hail?
It records how a roof covering sample reacted to a dropped steel ball of a stated size. UL's own scope says there is no established direct correlation between steel balls and real hailstones, and the test does not cover weathering or aging.
Were the Lake Royal roofs lifted by wind above the design speed?
No source opened for this page says. The weather service estimated a peak of 90 mph from the damage it surveyed, and the county table lists 115 mph as an ultimate design speed. Those are different quantities, so the pair is not a comparison. An engineer who has inspected the roofs would have to answer.
Talk through your roof with Roofers of Arlington
Share the address, what you are seeing on the roof and the decision you need to make. We will tell you what to expect before anything is scheduled.