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