A roof condition, observed wind, a compact aircraft and an inspection deliverable are separate decisions. Do not treat a historic wind test as a reason to fly. Start with the project requirement, exact kit, current site context and a ground-inspection fallback that can still deliver useful evidence.
What should a Lyon roof-inspection team establish before considering DJI Mini 4K equipment?
Decision layer
Evidence to retain
What it can establish
What it cannot establish
Inspection purpose
Roof areas, required observations, client handoff, access constraints and ground alternative
What the inspection needs to establish
That an aerial element is necessary
Exact kit
Aircraft, controller, camera, batteries, accessories, serial record and condition evidence
Which equipment is under review
Output for another unit or configuration
Current site context
Responsible owner or manager contact, roof access, people context, surrounding conditions and current project information
Which site questions need current confirmation
Permission or suitability from a prior example
Observed conditions
Date, conditions, site observations and responsible decision record
What was observed for the actual project
A future wind, stability or image-quality result
Ground fallback
Ground camera plan, access method, client evidence requirements and exception record
How the project can continue without the aerial element
That every defect can be identified
Why should wind observations support a decision rather than promise a stabilisation result?
Wind and roof conditions change by site and time. A dated observation can help the responsible team decide whether to pause, use a different evidence method or seek a qualified assessment. It cannot prove that the exact Mini 4K will be suitable, stable or able to capture a particular roof feature for a later project.
How should a team turn the review into an action plan?
Action
What to retain
1. Define the inspection evidence
Record the roof areas, client questions, intended observations, access constraints and ground alternative.
2. Document the exact kit
Keep the aircraft, controller, camera, batteries, accessories, serial record and condition evidence together.
3. Confirm the current site context
Use the responsible property contact and current local project route for the actual roof and people context.
4. Record observed conditions
Keep a dated condition record and the responsible team's decision rather than relying on an earlier test.
5. Preserve the fallback evidence
Document the ground method, client handoff and any exception record for the inspection file.
