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

Heat Transfer Modes Radiation Conduction Convection Conduction Convection Radiation

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

Visual Image These two glasses visually appear the same.

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

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.

Water Damage

High Ceiling Water Damage

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.

Water Damage

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

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

Moisture Detection on a Roof

Damaged/Missing Insulation

Building Envelop Inspection

Water leak in a concrete slab

Hydrogen Tracer Gas Leak Detection Acoustic Leak Detection Additional Equipment

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)

Any Questions Thank You