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What is Thermography?

Thermography is an amazing technology that actually allows us to see thermal energy or heat. The term thermography can be translated to "writing with heat”. The science of obtaining and analyzing this thermal data is performed with Infrared (IR) cameras. Images produced by these IR cameras are called thermograms or thermal images.

This technology has been used with outstanding success by the military and similar high end organizations for decades, but only recently has the use of IR thermal imaging been more widely recognized as a major tool in protecting and understanding your most important asset; your building.


How Is It Useful To Me?

Thermography is able to supply building owners with razor sharp images regarding:

•    Identifying excessive moisture intrusion throughout the building.

•    Detecting temperature variations or anomalies.

•    Locating heating and cooling losses with pinpoint accuracy.

•    Recognising areas of missing or displaced insulation.


Along with being fast, accurate and safe, this technology is non-contact and non-destructive to your home. Once you have a report produced for your property, you can then provide this to builders or contractors of your choice, highlighting clearly any areas requiring repair. Or you can provide the detailed report to a prospective home buyer, giving them confidence to make the purchase.

Our goal with a NZ Moisture Testing Ltd thermal image moisture report is to provide you with a vital tool that can help you make better informed decisions, add years to the life of your home, and save you money.


How Does An Infrared Camera Work?

An infrared camera is a non-contact device that detects infrared energy (heat) and converts it into an electronic signal, which is then processed to produce a thermal image on a video monitor and perform temperature calculations.

Heat sensed by an infrared camera can be very precisely quantified, or measured, allowing you to not only monitor thermal performance, but also identify and evaluate the relative severity of heat-related problems.



Why Can’t We Just Use A Moisture Meter?

Some building inspection companies may offer you a moisture test by simply using a non-invasive moisture meter. They will not be able to test hard to reach areas, such as high ceilings. It is impossible to check every inch of a room with a moisture meter, but with the camera being able to point out any thermal anomalies, it gives us a clearer indication of where any potential problems may be.

We use the pin-less moisture meters to confirm the presence of any moisture in the areas highlighted by the camera. Additionally, we always check the common problem areas, such as, around joinery, lintels, below joinery at the floor plate, and all external walls.

Leaks are confirmed when the infrared camera and moisture meters are used in conjunction to provide a non-intrusive method of detecting moisture intrusion within a building.


Advantages of Thermography

•    Thermal imaging is the leading form of moisture testing inspection available.

•    It is a form of non-destructive testing, giving you accurate results without leaving any damage to your home.

•    Thermograms provide you a visual image, allowing for thermal patterns to be easily seen and compared in 2D.

•    It is real time enabling you to view fast changing heat patterns in moving objects as they occur.

•    It is non-contact, keeping the user safe and making it possible to test unreachable or hazardous areas.

•    With the use of thermography we are able to locate anomalies and detect faults before they deteriorate.


What Will We See?

What we see in thermal images is based purely on the conditions within the wall linings of each individual dwelling. We guarantee that we can see a lot more than the naked eye. Even slight temperature variances or thermal anomalies will show up as the camera is very accurate.

Often people ask if the thermal camera can see inside the walls, in short, the answer is no. Although it may look like you can see through the walls, the camera is not like an x-ray machine. Our ITC certified thermographers are well trained at ‘reading’ the images and can see any temperature changes on the wall surface or as deep as 40mm in – these warm or cold spots can be caused by moisture but also any materials within the wall or directly behind it. This is why we also use a moisture meter, to confirm if the thermal anomalies are likely to be moisture intrusion or something else.



ITC – Infrared Training Center

The Infrared Training Center is the premier educational and training resource for infrared camera application professionals.

The Infrared Training Center is the perfect place to get high-quality interactive thermography training from the most qualified international thermography instructors. The ITC offers IR training, certification, and recertification in all aspects of infrared thermography use. 

Their world-class infrared training facilities feature the most extensive hands-on laboratories for learning IR applications. And, the ITC is the only IR training resource that is ISO 9001 certified.

At NZ Moisture Testing, all our inspectors are certified in ITC Level 2 Thermography.