Thermal Imaging

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Thermal Imaging Leak Detection

• Nigel Hewitt
• Technical Manager

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What is Thermography?

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

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What is a Thermal Image

• Photography can be described as writing with
  Light
• Thermography can be described as writing with Heat

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Heat Transfer Modes

• Conduction
• Convection
• Radiation

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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

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Visual Image

• These two glasses visually appear the same.

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Thermal Image

• Thermal Imaging with an infrared camera.
• Paints a different picture.

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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.

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Water Damage
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High Ceiling Water Damage
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Infrared Thermography

• IR thermography can then be used to accurately
  monitor the drying process.
• IR cameras can inspect places that cant be
  physically reached with a moisture meter.

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Water Damage
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See the Drying taking place!Dry a building
more effectively and more efficiently!
The Drying Process
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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

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Moisture Detection on a Roof
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Damaged/Missing Insulation
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Building Envelop Inspection
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• Water leak in a concrete slab

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Additional Equipment
Acoustic Leak Detection
Hydrogen Tracer Gas Leak Detection
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Non-Destructive Moisture Detection

• Advantages
• Quick
• Non-evasive
• Does not require relocation of the occupant or
  the occupants 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)

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Any Questions

• Thank You