Evidence Requirements

Effective: February 7, 2026 | Last updated: 2/20/2026

1. Photo Input Requirements

  • Minimum resolution: 1920x1080 (>=2 MP).
  • File size: 100 KB to 10 MB, JPEG or PNG.
  • Quality score: >=75/100 (recommended), >=50/100 (minimum).
  • EXIF data: GPS coordinates, timestamp, and camera model must be present.
  • Lighting: even exposure with no heavy shadows or overexposure.
  • Angle: as perpendicular to the surface as possible, max 30-degree deviation.
  • Scale reference: include a ruler or known-size object whenever possible.

2. Evidence Chain Requirements

  • SHA-256 hash generated at upload (for integrity verification).
  • Key EXIF metadata captured (when available) and stored.
  • Upload timestamp recorded by the system.
  • Chain-of-custody / audit metadata recorded.
  • No post-upload image editing is permitted.

3. Report Limitations

  • AI analysis is a decision-support tool and not a certified expert opinion.
  • Results require validation by a qualified building professional.
  • Admissibility depends on jurisdiction and case context.
  • Faultrix does not guarantee legal acceptance of reports.
  • Reports do not replace mandatory inspections under OeNORM B 2110.

4. When to Escalate to a Human Expert

  • Confidence score below 70 percent.
  • Structural safety concerns involving load-bearing elements.
  • Legal proceedings or insurance disputes.
  • Heritage or listed buildings.
  • Complex multi-defect scenarios.

5. Jurisdiction Notes

  • Austria: reports may support, but not replace, certified expert reports.
  • EU: evidence rules vary by member state.
  • Consult local legal counsel for admissibility questions.