Is drone aerial documentation better than a satellite report?

For complex, steep, or recently changed roofs, yes. A drone photographs the actual roof on the day of the flight at high resolution, so additions, valleys, dormers, and steep facets appear as they exist today — not as they looked on a satellite pass that may be months or years old, and satellite reports include no current condition photos at all.

How fast is drone roof documentation?

On-site capture takes well under an hour, and the documentation — full-coverage annotated 4K photography of every facet with an adjuster-ready PDF — is typically delivered the same day to within 24 hours.

Do I keep the drone photos?

Yes. You keep the full set of high-resolution aerial images, delivered through a secure password-protected portal, so the same flight serves estimates, claims, and the customer file.

Can you provide measurements too?

Measured and georeferenced deliverables (areas, lengths, orthomosaics, dimensioned models) are offered only where permitted by state surveying law and are pending legal clearance in North Carolina (NC GS 89C). MW AIRLIFT provides visual aerial documentation of observable, accessible exterior conditions — documentation and imagery only, not a licensed home or building inspection, structural or engineering evaluation, or any certification — and never sells repairs.

The Evidence Deadline on a Construction Site: What Disappears Once It Is Covered

Most construction disputes are not arguments about what happened. They are arguments about what can still be shown. A back-charge lands four months after you demobilized, it concerns a condition your crew did photograph, and the photograph settles nothing — because it carries no position, no verified time and no author that the other side has to accept.

That is a documentation problem with a deadline attached, and the deadline is not the one most subcontractors are watching.

Two clocks run on every North Carolina job

The legal clock is the one everybody knows. Under N.C.G.S. § 44A-12(b), a claim of lien on real property must be filed no later than 120 days after the last furnishing of labor or materials at the site. Under § 44A-13, an action to enforce it must be commenced within 180 days. On most projects over the statutory threshold there is also a Notice to Lien Agent to serve in the first fifteen days. These are strict; missing them generally ends the claim.

The second clock is quieter and it runs faster. It is the window in which the physical evidence still exists. Geogrid, stone base, undercut and backfill, storm structures, pipe bedding, erosion control at the moment of installation — every one of those stops being observable the instant the next lift goes down. No inspector, engineer, attorney or adjuster can go back and look. The record you have on the day the cover goes on is the entire record that will ever exist.

By the time a 120-day clock is relevant, that evidence has been buried for months.

What actually gets disputed

The dispute	What would settle it	When it stops being available
Pre-existing damage charged to you	Dated site condition before you mobilized	The morning your first machine arrives
Geogrid or fabric placement questioned	Overhead frame of the layer as placed	When the next lift is spread
Base depth or coverage challenged	Plan-view coverage on the date of placement	At compaction
Drainage structure or bedding	Structure and bedding before backfill	At backfill
Erosion control adequacy after a storm	Measures as installed, and again after weather	At the next maintenance pass
Percent complete on a pay application	Work in place on the billing date	The following work day

Why the phone in the truck is not enough

This is not a criticism of the practice — nearly every competent crew photographs its own work, and they are right to. The limitation is in the medium, not the person holding it. A phone image travels through text messages and email, which strip metadata; it carries no independently verifiable capture time; nobody recorded who took it; and a JPEG is trivially editable, which means the other side is entitled to ask whether it was.

None of that matters until the day it is the only thing standing between you and a five-figure back-charge.

What a defensible site record contains

Whether you build it yourself or bring somebody in, the same elements do the work:

A pre-mobilization baseline. Site condition before you touch it. This is the single cheapest record on any project and the one that ends the pre-existing argument outright.
Plan-view frames from repeatable positions. Two visits only compare if they were flown from the same place. Otherwise every conversation becomes an argument about the angle.
Pre-cover capture at the layers that get buried. Geogrid, base, structures, bedding — photographed from directly overhead, on the date, before the next lift.
A capture record. Date, time window, weather, and who captured it.
Independent verification. Something the general contractor, owner or their counsel can check without taking your word for it.
Explicit limits. A record that states plainly what it does not establish is more credible than one that overreaches. Visual documentation is not a survey, and in North Carolina measured quantities, boundaries and acreage are the practice of land surveying under Chapter 89C. A site record should say so on its face.

The economics are not close

A pre-mobilization flight costs a few hundred dollars. A contested back-charge on a mid-size sitework package routinely runs into five figures before anyone has argued the merits — and the argument itself consumes principal time that is not billable to anything.

The asymmetry is the point. You are not buying documentation because you expect a dispute on this job. You are buying it because the record cannot be created later, and you will not know which job needed it until the letter arrives.

Where MW AIRLIFT fits

MW AIRLIFT™ is a drone operations company based in Raleigh — FAA Part 107 certified, $1M insured — and we document sitework from the air across the Triangle and Eastern North Carolina. Pre-existing condition before you mobilize, base and drainage from directly overhead before cover, progress at the dates you name, flown from the same positions every visit.

Every image is fingerprinted at capture and sealed into a signed, published record, and every page of the report carries a code the general contractor or owner can scan to confirm the images and dates are unaltered — no account, no software required. We do not build, and we never bid the work we document, which is the reason the record carries weight when it is challenged.

We will also tell you where our work stops. It is visual documentation: no measured quantities, no boundaries, no acreage, and no engineering opinion. Where a project needs survey-grade output, you need a licensed surveyor and we will say so.

See what actually arrives. Our sample sitework progress report shows the full deliverable as a client receives it — findings table, numbered figures, flight record and verification page: Sample construction site works report (PDF).

If something is breaking ground this quarter, one flight before you mobilize is the record you cannot make later. Send the site address and we will quote it the same day — or call (919) 306-1695.

This article is general information about documentation practice, not legal advice. Lien deadlines and their application are fact-specific; consult a North Carolina construction attorney on any live claim.