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Thermal Imaging & Leak Detection

Thermal Imaging & Leak Detection. Nigel Hewitt Technical Manager. What is Thermography?. Infrared Thermography is the science of acquistion and analysis of thermal information from non-contact thermal imaging devices. What is a Thermal Image.

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Thermal Imaging & Leak Detection

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  1. Thermal Imaging & Leak Detection Nigel Hewitt Technical Manager

  2. What is Thermography? • Infrared Thermography is the science of acquistion and analysis of thermal information from non-contact thermal imaging devices

  3. What is a Thermal Image • Photography can be described as writing with Light • Thermography can be described as writing with Heat

  4. Convection Conduction Radiation Heat Transfer Modes • Conduction • Convection • Radiation

  5. Infrared Thermography • Building materials radiate energy • Wet materials retain heat and change slower than dry areas of the same material. • This allows us to locate an area with a moisture problem

  6. Visual Image These two glasses visually appear the same.

  7. Thermal Image Thermal Imaging with an infrared camera. “ Paints a different picture.”

  8. Infrared Thermography • IR thermography can be used to trace the influx of moisture to find the ultimate source of leakage with little or no physical disassembly of the premises. • With current models of IR cameras, images can be made in seconds.

  9. Water Damage

  10. High Ceiling Water Damage

  11. Infrared Thermography • IR thermography can then be used to accurately monitor the drying process. • IR cameras can inspect places that can’t be physically reached with a moisture meter.

  12. Water Damage

  13. See the Drying taking place!Dry a building more effectively and more efficiently! The Drying Process

  14. Thermal Imaging • Where can it help us • Identifying point of water ingress • Track spread of water • Identifying maintenance issues • Identify issues with insulation • Identify areas of air infiltration • Assist with trace and access

  15. Moisture Detection on a Roof

  16. Damaged/Missing Insulation

  17. Building Envelop Inspection

  18. Water leak in a concrete slab

  19. Additional Equipment Acoustic Leak Detection Hydrogen Tracer Gas Leak Detection

  20. Non-Destructive Moisture Detection • Advantages • Quick • Non-evasive • Does not require relocation of the occupant or the occupant’s contents • Helps define actual source and defines its progression • Disadvantages • Cannot see through walls; only detects surface temperature differentials • Cannot detect subsurface damage (i.e. mould or structural damage)

  21. Any Questions Thank You

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