Understanding Drone Inspection Reports: What Each Section Means

A drone inspection report is only useful if you understand what it contains. Most reports follow a standard structure, but the technical language and classification systems can be unfamiliar to property owners, strata managers, and facilities teams.

Report Structure

A typical drone inspection report includes these sections:

1. Executive Summary

The summary provides a one-page overview of findings, overall condition rating, and priority recommendations. Read this first. It tells you whether the situation is urgent, routine, or requires monitoring.

Most operators use a traffic-light system: green (good condition, routine maintenance), amber (fair condition, schedule repairs within 12 months), red (poor or critical, action required promptly).

2. Inspection Details

This section records the inspection date, time, weather conditions, operator credentials, and equipment used. It establishes the context and validity of the data. Check that the operator has a current CASA RePL and their company holds a ReOC.

3. Property Overview

A description of the property including address, building type, roof type and material, approximate age, and any relevant history. This provides context for the findings.

4. Findings and Defects

The main body of the report. Each finding includes:

• Location: marked on a roof plan or elevation drawing with a reference number
• Description: what was observed (e.g., "cracked ridge cap tile with 15mm displacement")
• Photos: annotated aerial photos showing the defect
• Severity: classification from minor to critical
• Recommended action: what should be done and when

5. Defect Classification

Defects are typically classified into severity levels:

• Cosmetic: appearance only, no functional impact
• Minor: early-stage deterioration, monitor and maintain
• Moderate: active deterioration, schedule repair within 6 to 12 months
• Major: functional failure or risk of failure, repair within 3 months
• Critical: immediate safety risk or active water ingress, urgent action

6. Thermal Data (if applicable)

Thermal findings include both visible and infrared images. Temperature readings are in degrees Celsius. The analyst interprets temperature differentials to identify moisture, insulation defects, or electrical faults.

Key terms in thermal sections:

• Delta-T: temperature difference between the anomaly and surrounding area
• Emissivity: a property of the surface material affecting temperature readings
• Radiometric: temperature data embedded in each pixel (not just a colour image)

7. Recommendations

Prioritised list of recommended actions, grouped by urgency. Good reports include estimated cost ranges and suggested timeframes. This section feeds directly into maintenance budgeting and sinking fund planning.

8. Appendix

Full image gallery, orthomosaic (if produced), and any supplementary data. The appendix provides the complete photographic record for future reference.

Using the Report

Share the report with your maintenance contractor or quantity surveyor for pricing. Use the prioritised recommendations to plan maintenance spending over the next 1 to 5 years. Keep the report as part of the building's maintenance records for future comparison.

If anything in the report is unclear, ask the operator to explain it. A good operator stands behind their report and is available for follow-up questions.