Moisture hides under the membrane. Thermal maps it.

A severity-ranked findings report: an executive summary, geolocated findings with ΔT measurements and photographs, a moisture and envelope map, and a recommended priority order. It is engineered for a budget conversation or an insurance file, not a raw imagery dump.

Findings are written to become scope for your roofer: locations, extents, and priority for each item, with the evidence attached. Jinki inspects only and never repairs, so the report carries no conflict of interest — your contractor prices measured condition instead of a guess.

Thermal contrast peaks under specific conditions — dry nights after warm days, when wet insulation and dry sections release stored heat at different rates. We schedule capture for those conditions and around rain, high wind, and airspace windows, so the data reads cleanly. The visual portion tolerates a much wider range of weather.

Most low-slope systems: built-up, modified bitumen, and single-ply TPO or EPDM membranes — plus the details where water usually starts, including flashings, HVAC curb seals, drain blockages, and parapet and skylight seals. The same method covers community common elements, clubhouses, and outbuildings.

A single mission covers 100% of the roof surface. Ladder walks and core-cut sampling see a fraction of it, only where someone already suspects a problem, and they put personnel on the membrane. Thermal and visual capture find wet insulation and delamination beneath the surface; core cuts remain the confirmation step for your contractor.

Yes. HOA roof inspection and condo common-element roofs run as community-wide cycles — every building captured in coordinated missions under the same conditions. The HOA and Community Associations page covers the group model.

On-site capture is typically a single day and the report is targeted within 48 hours of capture. We fly roof inspections across Northern Virginia — Loudoun and Fairfax counties, the Washington DC metro, and the wider Mid-Atlantic — scheduled around thermal conditions and airspace windows, with full engagements running two to three weeks end to end.

Scope: roof area and complexity, the number of structures, and above all deliverable depth — raw imagery versus a severity-ranked findings report with measured ΔT values. Pricing is scoped to the site. The field note on what drives drone roof inspection cost shows how to compare quotes line by line.