Key takeaways
- The first capture is a record of condition before cleanup changes it. Once debris is moved and tarps go on, the state of the site at the moment of loss is gone.
- Access and clearance come before the flight. A fire or structural collapse scene can be under the control of authorities, and the owner's permission alone is not always enough.
- Aerial imagery is strongest at extent. How much roof, how many acres, how far the debris travelled, what direction it went: these are measurable from the air and tedious from the ground.
- It is weakest at cause and at anything hidden. No capture determines what caused a loss, what the structure can now carry, or what is under the roof deck.
- Thermal needs a differential to see anything. On a post fire or water intrusion job that means picking conditions, not just bringing a thermal camera.
- The adjuster decides the claim. The capture is evidence that goes into a file, and it helps most when it is dated, unedited and accompanied by a method record.
- The missing piece in most claims is the before. An owner who already flies the site annually starts the conversation from a measured baseline instead of a memory.
- Safety governs the flight plan. A damaged structure, a hot spot, an energised line down or a crew working the site all reshape where an aircraft can be.
The call usually comes the morning after. A hail cell went through a yard, wind took part of a roof, or a fire has been knocked down and the scene is cooling. The question is whether it is worth getting a drone over the site before the cleanup starts.
Usually yes, and the reason is narrower than most people expect. The capture is not going to decide the claim. What it does is preserve a dated record of the condition of the site before anybody moves anything, and that record is only available for a short window.
What the first capture is for
Within a day or two of a loss, the site still shows what happened. The debris is where it landed. The damaged units are still damaged rather than tarped. The water is still where it ponded. Cleanup and emergency repairs are necessary and they begin immediately, and every one of them removes evidence of the state of the site at the moment of loss.
A capture taken before that starts gives four things that get harder to produce later:
- Extent. How much of the roof, how many acres, how many units, how far along the row. Aerial coverage measures this across a whole property in one pass instead of by walking it.
- Pattern and direction. Where the debris field runs, which face took the impact, where water flowed. The pattern across a site frequently tells more than any single close up image, and it is only visible from above.
- A dated condition record. Imagery with an intact capture date, before any remediation, of a site that is about to change.
- Safe observation of places nobody should be. A storm damaged roof, a partially collapsed structure, a burned out building. Looking at those from the air removes the need to put a person on them, which is the same argument made in drone inspection versus scaffolding.
What it is not is an inspection report. Close examination of a specific element still happens up close by somebody qualified to judge it. The aerial capture tells you where to send that person and documents the condition they will be walking into.
Access, clearance and airspace
This is the part that gets skipped in the urgency, and it is the part that stops a flight.
A loss site can be under the control of someone other than the owner. A structure fire scene remains under the authority of the fire service until it is released, and a serious incident may be subject to an investigation that controls access. The owner asking for a flight does not override that. The first question is whether the scene has been released and who is currently in charge of it.
Airspace can also be restricted around an active incident. An emergency response with aircraft involved, including air ambulance or water bombing, is an absolute stop for any drone operation in the area. Those restrictions are real and short notice, and they are checked as part of flight planning rather than assumed. The general process is described in airspace near Alberta airports and aerodromes.
Then there is the ground. A loss site has hazards a normal survey does not: hot spots, compromised structure, broken glass and metal, standing water near energised equipment, downed conductors, and remediation crews working under the flight path. The launch point, the flight lines and the crew's own movement all have to account for those, which is the same planning discipline covered in the site hazards that reshape a flight plan.
What an adjuster can and cannot use it for
Worth being precise here, because overselling aerial imagery in a claim file is how it gets discounted.
What it supports well. The extent of visible damage across a large area. A count of affected units, bays, panels or structures. Measurement of an affected area for scoping repairs. The dated condition of the property before remediation. Documentation of debris and its distribution. Access to elevations and roof surfaces that would otherwise need a climb. On a large or distributed property it also compresses the time between the loss and the first reliable picture of scope, which matters to everyone in the file.
What it does not do. It does not establish cause. It does not assess structural capacity, which is an engineer's determination. It does not see under a roof membrane, inside a wall, below grade or under water. It does not date the loss itself, only the capture. It does not measure hail size, wind speed or anything else about the event. And it does not settle coverage, which is the adjuster's and the insurer's work. What aerial capture contributes to a property file more generally is covered in what underwriters and appraisers want from aerial capture, and the industry view is on the insurance and loss adjusting page.
Thermal on a post fire or water damaged structure
Thermal gets asked for often after a loss, and it is useful under conditions that have to be arranged rather than hoped for.
A radiometric thermal sensor measures apparent surface temperature. It finds differences, not materials. On a post fire structure that means residual hot spots and areas still releasing heat, which is genuinely valuable while a scene is being monitored. On a water intrusion job it means areas of a roof or wall whose thermal behaviour differs from the surrounding surface, which often corresponds to trapped moisture.
The catch is that the differential has to exist at the time of the flight. A roof surveyed in flat cloud, with no solar loading and no temperature gradient across the assembly, gives a thermal image with nothing in it. Timing and conditions drive the whole result, which is set out in the conditions that make or break a thermal inspection and compared against visual imagery in thermal versus visual on a roof inspection. Treat a thermal anomaly as a place to investigate rather than as a finding, and confirm it by a method that can see what is actually there.
The thing most owners do not have
Here is the recurring frustration in post loss work. The capture after the event is straightforward. What is almost never available is the capture from before it.
Without a before, every question about pre existing condition becomes a matter of recollection and old photographs taken for other reasons. Was that roof section already failing. Was that panel already cracked. Was the ponding there last spring. An owner who already flies the property, even annually, answers those from a dated measured record instead.
That is the strongest argument for a routine capture, and it costs a fraction of what gets spent arguing about condition after a loss. It is the same case made for a recurring interval in how often you should re-fly a site and for a programme in building an annual aerial capture program. For insurance purposes specifically, the useful timing is before renewal, not after an event.
Handling the files so they still count later
A post loss capture is evidence, and evidence can be handled into uselessness. The originals stay untouched and read only. Nothing gets re-saved through a photo editor, pasted into a slide deck as the only surviving copy, or sent through a service that recompresses images and strips their metadata. The method gets written down on the day: who flew, when, what aircraft and sensor, conditions, what was captured. Annotated versions are a separate layer with the unmarked original retained alongside.
None of that is onerous, and all of it is the difference between a record that holds up eighteen months later and a folder of undated pictures. The full version is in when aerial imagery holds up as evidence. Data ownership and retention should also be settled rather than assumed, particularly where imagery is going to an insurer, a consultant or a lender, which is covered in data ownership and retention on industrial drone jobs.
What to tell us when you call after a loss
Six things get a crew moving fastest. Where the site is. What happened and when. Whether the scene has been released and who is in charge of access. What is being claimed or scoped, so the capture targets it. Who receives the files, because an insurer, an adjuster and an engineer want different products. And whether anything is scheduled to be moved, tarped or demolished, because that sets the deadline.
If the answer to that last one is tomorrow, say so in the first sentence. A capture flown before the cleanup is worth considerably more than the same capture flown after it, and that is the one part of a loss file that cannot be recovered later. Reach us on the contact page or by phone for anything time critical.