Route 28 runs on critical load. We read its roofs.
Sterling carries the data-center campuses, flex buildings, and industrial bays that feed the Dulles corridor — all of it inside the Washington DC Special Flight Rules Area and under Dulles Class B overhead. We verify your parcel's airspace before we promise a date, then fly radiometric thermal and high-resolution visual capture across the full surveyed surface.
- FROM DCA
- 20.3 NM
- STANDING
- Inside the DC SFRA
- POSTURE
- Served with FAA authorization
- CELLS
- Per-parcel. Cells across the Sterling area have logged 300 ft and 400 ft, and one Sterling cell returned 0 ft — a 0-ft cell means no automated approval, so that request routes to a manual FAA review rather than being unfliable.
- COUNTY
- Loudoun County
Sterling sits 20.3 NM from the DCA VOR/DME, inside the 30-mile DC SFRA, with Dulles Class B overhead the Route 28 corridor. Operations run under prior FAA authorization and NOTAM discipline. Inside the SFRA the standing UAS security NOTAM is VMC-only and bars night, so flights are scheduled in daytime and twilight windows. Altitude is set by your parcel's cell ceiling or Part 107's 400-foot limit, whichever is lower.
HOW THIS IS READ → THE AIRSPACE GUIDE- 20.3NM
- Great-circle distance from the DCA VOR/DME — inside the 30 NM Special Flight Rules Area
- 100%
- Coverage per single mission — every section surveyed, no personnel on the membrane
- 48HR
- Findings report targeted within 48 hours of capture — geolocated and severity-ranked
- Radiometric
- Thermal payload class — findings resolve as measured ΔT signatures, not impressions
What we inspect in Sterling.
Colocation and hyperscale campuses
Roof assemblies, cooling plants, and electrical yards along the Route 28 and Dulles corridor. Thermal capture locates wet insulation, heat-rejection losses, and connections running warm while they are still maintenance items, not outages.
Flex and light-industrial buildings
Sterling's low-slope flex stock sits behind membrane that hides its own history. Moisture trapped under an intact cap sheet is invisible from the loading dock and unambiguous in thermal — located by section, priced before it becomes a tear-out.
Commercial and retail centers
Retail strips and office buildings along Route 7 and the Sterling commercial nodes. One pass reads the roof field, the mechanical curbs, and the envelope in the same conditions, so a property manager gets one record instead of three contractor opinions.
HOA and townhome clusters
The Cascades, CountrySide, and Sugarland Run corridor holds thousands of attached roofs under association responsibility. One mission produces a section-by-section thermal record boards can use to stage deferred roof work across several budget years.
Engagements runnable in Sterling.
Send us an address in Sterling.
We come back with the cell value for that parcel, the authorization path, and the flight windows that apply — before anyone talks about scheduling.
Sterling, answered.
Can you fly in Sterling? Sterling is inside the DC SFRA.
Yes. Sterling measures 20.3 NM from the DCA VOR/DME against the 30-mile boundary of the Special Flight Rules Area, which puts it well inside the SFRA and squarely in our service area. SFRA work runs under FAA authorization with NOTAM discipline, and that authorization is part of a site's setup rather than an afterthought. We verify the specific parcel before we commit to a date.
What altitude will you fly over our building?
Whatever your parcel's grid cell allows, or Part 107's 400-foot limit, whichever is lower. Sterling is a good example of why that is a per-parcel question: cells in this area have logged 300 feet, 400 feet, and one cell returned 0 feet. A 0-ft cell is not a no — it means the FAA will not auto-approve at that location, so the request goes through a manual review path and we file it early.
Does Dulles airspace change anything for us?
It adds another layer. Dulles Class B sits over the Route 28 corridor, and controlled airspace requires prior authorization from the FAA. Combined with the SFRA, that means we confirm the authorization path for your address — automated where the cell and profile allow, manual where they do not — before any capture window is discussed.
Can you fly at night to catch thermal contrast?
Inside the SFRA, no — the standing UAS security NOTAM limits operations to clear-weather daylight. Thermal contrast does build after sunset, so for parcels verified outside the SFRA we schedule night capture; for Sterling we plan twilight and dry-day windows, which still separate wet from dry roof sections cleanly.
Our association has 40 attached townhome roofs. Is that one mission?
Usually yes, and it is the case we see most in Sterling. We capture the whole roof field in one set of conditions, then rank findings by building and by section, so a board can see which clusters are wet now and which can wait a budget cycle. Findings arrive as scope for your own roofing contractors — Jinki performs no remediation.
Do you publish findings or name us anywhere?
No. A mutual NDA is standard, findings are prepared for you and your contractors, and we do not publish client sites, tenant names, or findings. The severity-ranked report is written as scope, not as a sales pitch.
Related field notes.
Request a Q3 assessment
Two fields. A one-business-day response target. A mutual NDA before we see your site.
- Mutual NDA by default
- $5M liability coverage per operation
- Your data stays in your control
REQUEST FILED
- REF
- FILED
- SCOPE
- FACILITY ASSESSMENT
- NEXT
- FOUNDER RESPONSE TARGET < 1 BUSINESS DAY
Filed directly with Adnan Abdillahi, founder. Keep the reference for your reply.