Forensic inspection / leak detection
A forensic leak detection is a persevering inspection to find the right, exact cause of a moisture problem. This means that the supply and drainage pipes are inspected for possible leaks, inside as well as outside the house. This can be done destructively and non-destructively. During for example an inspection of the roof, a piece of lead can be bended if necessary. For investigating the ground level zone a tile can be removed from the tiling.
What this can contain:
- inspection of the pipe system (supply and drainage; inside and outside the building)
- inspection of the roof
- inspection of the ground level zone
- inspection of the windows and doors
A complete forensic inspection can be done with different methods to come to a conclusive analysis.
“Forensic” inspection methods can be:
- a visual inspection
- a moisture measurement in depth
- a destructive inspection
- an inspection with a HD sewer camera
- a smoke gas leak detection (1,2-ethynediol)
- a traceable gas leak detection with N95-H5 (H10)
- a digital pressure test (supply pipes and central heating pipes)
- a HD infrared inspection
- a high frequency scanning (GANN UNI 1 with B50 probe) (coloured mapping)
- fluorescent dyes
- datalogging °C, rH, Pa, Td, Tw
- water pressure
- dew point determination
- wet bulb temperature measurement (ground floor)
- sonar scanning, pipe seeker
- calcium carbide test
- pyrometer
- odour detection
- mould analysis
- Kasten tube test, porosity measurement
- constructive vapour diffusion calculation (theoretic approach)
- tear measurement and follow-up
- a polarisation recording
- ground level zone determination with cross section diagram
- digital saturation simulation
- diagonal analysis
- photographic analysis shell construction
- vapour pressure and ventilation determination under the building
- analysis solvable salts
- orientation and turbulence determination (driving rain)
- history comparison (causal connection work / damage period)
- insurance technical analysis
- liability analyses
- etc.
Actual causes are often not as obvious as people thought