Tree hugging Koalas

Every one knows how hot the Australian wilderness can get – here at Scantherma we’ve certainly had more than our fair share of experience. We usually slip, slop, slap and find cover to escape the heat, but what if you’re a little furry marsupial?

Most Australian fauna will hide from the sun by burrowing underground, seeking shelter in caves or invading our backyard swimming pools.


No this is not a pool ornament or a deflated pool toy. It’s a REAL crocodile.


But what do you do if you live most of your life in a tree?

Koalas (Drop Bears) have until recently, been thought of as lazy, cute fuzzy little creatures that live in trees, and only come down to find another tree to climb up. They’re often seen clinging onto tree trunks, eating and sleeping. But now, thanks to research done by the University of Melbourne’s Zoology department, it turns out that there’s a deeper reason why Koalas hug trees so tight, especially in the summer. And it’s not because they’re lonely.

Sleepy Koala

During your average heat wave, the temperature in the Australian bush can reach over 50 degrees C, and around 45 degrees C in the shade.  To survive this blistering climate, Koalas do what they do best, hug trees.

The reason is simple. Depsite the unbearable heat, a large tree’s core temperature stays comparatively low. This makes it very convenient for the Koala as the tree is both its shelter and food source.

Below are some thermal images taken by Steve Griffiths that show the Koalas in action, or rather no-action and just laying there cooling down.


It can be clearly seen here that the tree trunk in shades of purple is much, much cooler than the Koala’s body.


Both a cooler and a bed, oh and a kitchen, and maybe many other things. This tree is everything to the Koala.



Looks like Koalas have the ideal life style.

So next time you see a Koala hanging out, remember that it is actually working hard to cool down by using its surroundings and conserving energy and water. Not so lazy after all!

If you would like to find out more about Thermal Imagery and how it can help you visit our Thermal Imaging page here, or come and visit us at our Perth office and one of our friendly technicians will gladly assist.

Is Your Home Energy Efficient?

As our society advances we become a little wiser and learn from our mistakes. We also learn more about our environment and how we fit in it. The Earth’s population is rising rapidly and at this point in time it can be said that humankind is directly impacting the environment more than ever before. As one can imagine this impact is mostly negative. You may look at this and ask your self what you can do.

Well there are many things we can all do at the grass roots to make a positive change. To slow down and eventually halt this negative impact. One of the many things that we can do is to make our homes energy efficient. This will reduce the carbon footprint of our homes thereby reducing greenhouse gases.

At Scantherma we conduct Energy Audits using state of the art Thermal Imaging equipment. These inspections along with the accompanying reports have helped countless homes and business save money and lower their carbon footprint. The following are some areas we look at when inspecting buildings for energy efficiency using our thermal imaging cameras.



Missing insulation can be clearly seen here as the warmer orange to yellow colours.

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Again there is some areas with missing roof insulation in the corner of the room as seen in yellow.


Here we can see some damaged roof insulation in yellow. The exposed tin roof is radiating heat into the roof space thus elevating the ambient temperature. This will in turn reflect the overall temperature of the building interior.

Air Leeks (infiltration – exfiltration)


Here we can see the effects of air infiltration by the blue tones in the image. The room behind this door is air-conditioned and the cool air is pushing through micro-gaps at the bottom of the door.

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Cool air is pushing through gaps behind the garage roller door represented by dark blue.


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In this image we can see an area with severe moisture damage in purple. This area was inundated by rain water pushing through small gaps in the exterior structure of the building.

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Structural damage in the building roof has allowed rain water to enter in and heavily damage this wall corner.

Heating / Cooling


This image shows the flow of cool air from the ducted air-conditioner vents. As can be seen the cool air flow is concentrated in one direction.

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Cool air flow can be seen here in dark purple in the air vent.


Heating vent can be seen here in yellow.

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Image of wall mounted reverse cycle air-conditioner unit after service. The blue shows unobstructed cold air flow.


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Here we can clearly see a conventional down-light that has just been turned on.


The same down-light after a few minutes of use. The core has heated up a fair amount and now shows the light at it’s optimum temperature range. Many similar lights heated up to above 80 degrees. These were later found to be faulty.


 Our FLIR Building Inspection Video.

You can find more of our FLIR videos on our YouTube channel here. Or if you would like to find out more about our Thermal Imaging services visit us here. Alternatively you can visit us at our Perth office here and one of our friendly technicians will be glad to help.