Building inspection · Visual RGB
From raw images to a prioritised maintenance plan
A systematic drone inspection of an older standing-seam metal roof. The images were converted into numbered observations, technical assessments and an action plan with clear timeframes.
- Visual RGB inspection
- 7 observation areas
- Prioritised action plan
- 7
- observation areas
- From surface coatings to drainage details
- 3
- priority levels
- High, medium and low
- 5
- action points
- With responsibilities and timeframes
- RGB
- traceable documentation
- Overview, detail and image reference
- 01
The requirements
The client needed to understand the roof's actual maintenance needs and obtain useful information for budgeting and procurement — without starting with extensive physical roof access.
- 02
The execution
Roof slopes, seams, valleys, eaves, penetrations and roof safety equipment were systematically documented. Every relevant observation was located, given a reference and classified by priority.
- 03
The deliverables
A 19-page condition report with an overall assessment, observation map, seven separate inspection areas, recommended actions and a complete photographic appendix.
Summary assessment
Significant maintenance needs — no clear urgent structural damage
The metal roof structure appeared intact, but the coating system had reached the end of its technical service life. The report gave the client a clear next step: plan cleaning, corrosion protection and repainting before deterioration leads to more extensive corrosion damage.
What the deliverables look like
A report designed for further use
Each observation moves from image to assessment and then to a prioritised action.
- 01Scope
- 02Method
- 03Observation
- 04Assessment
- 05Recommendation
- 06Priority
- 07Timeframe
UAS Inspect
19-page condition report
- 01
Project and method
Purpose, scope, equipment and method limitations.
- 02
Overall assessment
Condition, technical function, risk and recommended approach.
- 03
Observations
Numbered findings with image references, assessments and recommendations.
- 04
Action plan
Priority and timeframe for further inspection and maintenance.
Images, references, status and next steps in one deliverable. The report structure above is visualised using the real project.
Selected observations
Findings you can understand and act on
A selection is shown below. The full report contains more inspection points and image references.
Severely deteriorated coating system
- Observation
- Extensive paint flaking and chalking across large parts of the roof. Several roof slopes lacked an effective protective coating.
- Assessment
- The surface coating was assessed as being at the end of its service life. Without action, the risk of accelerated corrosion and more costly future refurbishment increases.
- Recommendation
- Plan cleaning, removal of loose paint, corrosion protection, priming and complete repainting.
Local corrosion
- Observation
- Local discolouration and surface rust were present on several roof areas where the coating had deteriorated.
- Assessment
- No clear corrosion perforation was identified in the images, but the corrosion needs to be addressed during upcoming maintenance.
- Recommendation
- Clean and locally treat rusted areas before repainting the entire roof.
Valleys and roof junctions
- Observation
- The surface coating was also clearly deteriorated in critical drainage valleys and roof intersections.
- Assessment
- No clearly open defects were visible, but the area was prioritised because potential consequential damage could be extensive.
- Recommendation
- Check overlaps, treat rust and prioritise valleys during an on-site inspection.
From findings to a plan
Prioritised action overview
The report conclusions are brought together so the responsible party can quickly see what should be done, why and when.
| Action | Beskrivning | Priority | Timeframe |
|---|---|---|---|
| Surface maintenance | Clean, protect against corrosion and repaint the metal roof. | High | 1–3 years |
| Rust treatment | Locally treat corrosion. | Medium | 0–2 years |
| Valleys | Inspect and treat drainage junctions. | Medium | 0–2 years |
| Penetrations | Check seals during planned roof maintenance. | Low | During servicing |
What the client receives
A complete decision support package — not a folder of drone images.
The deliverables can be used for maintenance planning, service orders, procurement, warranty matters and discussions with property owners or end customers.
- 01Executive summary
- 02Zone and observation map
- 03Findings with observations, assessments and recommendations
- 04Prioritised action table with timeframes
- 05Traceable photographic appendix with image references
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