It’s estimated that termites do more damage to Australian homes each year than fire, floods and storms combined! Early detection is essential to help protect your property from termite infestation and termite damage, therefore it is very important that you have a termite inspection carried out at least every 12 months. A timber pest inspection by All Suburbs Building Inspections and Reports is a comprehensive visual inspection of all accessible areas of the property for termites and other timber pests such as borers, and wood rot decay.
What are termites?
Termites are small insects, similar shape and size as ants. When you hear people talk about white ants they are talking about termites. The one thing that most people know about white ants is that they eat wood, and they can destroy your home. If left undetected termites can cause enormous damage to unprotected timber structures which can result in expensive repair costs. Termites are silent, destructive and relentless.
Termites have developed a structured and well-organised world for themselves. Colonies mainly exist out of workers, soldiers and the queen. Together these millions of little creatures are able to achieve great things; building big structures above or below the surface, hollowing huge trees, moving vast amounts of soil, eating any (wooden) stored items in or around your house in direct contact with the soil. This includes your treated fence, retaining walls and/or any other decorative timbers lying around in the garden. Often these items start to show the first signs of fungal decay (continuously soaking up water) and give direct access to termites.
Termites also love fungal decay in wood. They are also masters of eating the paper of plasterboards inside houses, to the point where only a thin layer of paint is left over. Also think about stored items like paper, carton etc. Termites are constantly on the lookout for new food sources, they specialise in finding the smallest entry points into a house.
Prevention is Better than Cure!
It’s estimated that termites do more damage to Australian homes each year than fire, floods and storms combined! And once they’ve taken up residence in your home, they can be very hard to eradicate. Luckily, it is possible to prevent a full-blown termite infestation with major damage to your home by having annual termite inspections and a termite management system in place. When buying a house a pre-purchase building and pest inspection can inform you of any termite problems, prior to your contract going unconditional.
We use the latest termite detection technology including thermal imaging cameras and moisture detection meters as part of our professional and comprehensive timber pest inspection process to make detecting termites more effective and efficient. Click here to read more about thermal imaging.
Timber Pest (Termite) Inspections are the cornerstone of termite management. The Australian Standard recommends that all residential properties have an annual termite inspection carried out by a licensed pest inspector at least every 12 months. Because you home is one of the biggest financial investments you make in your life it is definitely worth spending just a few hundred dollars each year to ensure any termite infestation or damage is detected early before any major damage is done.
No Conflict of Interest with ASBIR
With All Suburbs Building Inspections and Reports there’s no conflict of interest because we don’t sell termite barriers or pest treatments. What we do is provide is sound expertise and professional advice and reports which to help you make an informed decision so that you won’t be up for any nasty surprises or unexpected costs later on.
Call us on 1300 553 007 during business hours, Monday to Friday from 8:30am to 5:00pm to speak to one of our friendly team.
Understanding Infrared Thermography (Thermal Imaging)
Infrared thermography (IRT), thermal imaging, and thermal video are examples of infrared imaging science. Thermal imaging cameras detect radiation in the infrared range of the electromagnetic spectrum (roughly 9,000–14,000 nanometers or 9–14 µm) and produce images of that radiation, called thermograms. Since infrared radiation is emitted by all objects above absolute zero according to the black body radiation law, thermography makes it possible to see one’s environment with or without visible illumination. The amount of radiation emitted by an object increases with temperature; therefore, thermography allows one to see variations in temperature. When viewed through a thermal imaging camera, warm objects stand out well against cooler backgrounds; humans and other warm-blooded animals become easily visible against the environment, day or night. As a result, thermography is particularly useful to military and other users of surveillance cameras.
Thermography has a long history, although its use has increased dramatically with the commercial and industrial applications of the past fifty years. Government and airport personnel used thermography to detect suspected swine flu cases during the 2009 pandemic. Firefighters use thermography to see through smoke, to find persons, and to localize the base of a fire. Maintenance technicians use thermography to locate overheating joints and sections of power lines, which are a sign of impending failure. Building construction technicians can see thermal signatures that indicate heat leaks in faulty thermal insulation and can use the results to improve the efficiency of heating and air-conditioning units. Some physiological changes in human beings and other warm-blooded animals can also be monitored with thermal imaging during clinical diagnostics.
The appearance and operation of a modern thermographic camera is often similar to a camcorder. Often the live thermogram reveals temperature variations so clearly that a photograph is not necessary for analysis. A recording module is therefore not always built-in. Non-specialized CCD and CMOS sensors have most of their spectral sensitivity in the visible light wavelength range. However by utilizing the “trailing” area of their spectral sensitivity, namely the part of the infrared spectrum called near-infrared (NIR), and by using off-the-shelf CCTV camera it is possible under certain circumstances to obtain true thermal images of objects with temperatures at about 280°C and higher.
Specialized thermal imaging cameras use focal plane arrays (FPAs) that respond to longer wavelengths (mid- and long-wavelength infrared). The most common types are InSb, InGaAs, HgCdTe and QWIP FPA. The newest technologies use low-cost, uncooled microbolometers as FPA sensors. Their resolution is considerably lower than that of optical cameras, mostly 160×120 or 320×240 pixels, up to 640×512 for the most expensive models. Thermal imaging cameras are much more expensive than their visible-spectrum counterparts, and higher-end models are often export-restricted due to the military uses for this technology. Older bolometers or more sensitive models such as InSb require cryogenic cooling, usually by a miniature Stirling cycle refrigerator or liquid nitrogen.
Thermal images, or thermograms, are actually visual displays of the amount of infrared energy emitted, transmitted, and reflected by an object. Because there are multiple sources of the infrared energy, it is difficult to get an accurate temperature of an object using this method. A thermal imaging camera is capable of performing algorithms to interpret that data and build an image. Although the image shows the viewer an approximation of the temperature at which the object is operating, the camera is actually using multiple sources of data based on the areas surrounding the object to determine that value rather than detecting the actual temperature. This phenomenon may become clearer upon consideration of the formula Incident Energy = Emitted Energy + Transmitted Energy + Reflected Energy where Incident Energy is the energy profile when viewed through a thermal imaging camera. Emitted Energy is generally what is intended to be measured. Transmitted Energy is the energy that passes through the subject from a remote thermal source.
Reflected Energy is the amount of energy that reflects off the surface of the object from a remote thermal source. If the object is radiating at a higher temperature than its surroundings, then power transfer will be taking place and power will be radiating from warm to cold. So if there is a cool area in the thermogram, that object will be absorbing the radiation emitted by the warm object. The ability of both objects to emit or absorb this radiation is called emissivity. Under outdoor environments, convective cooling from wind may also need to be considered when trying to get an accurate temperature reading. The thermal imaging camera would next employ a series of mathematical algorithms. Since the camera is only able to see the electromagnetic radiation that is impossible to detect with the human eye, it will build a picture in the viewer and record a visible picture, usually in a JPG format.
In order to perform the role of non-contact temperature recorder, the camera will change the temperature of the object being viewed with its emissivity setting. Other algorithms can be used to affect the measurement, including the transmission ability of the transmitting medium (usually air) and the temperature of that transmitting medium. All these settings will affect the ultimate output for the temperature of the object being viewed.
Emissivity is a term representing a material’s ability to emit thermal radiation. Each material has a different emissivity, and it can be difficult to determine the appropriate emissivity for a subject. A material’s emissivity can range from a theoretical 0.00 (completely not-emitting) to an equally-theoretical 1.00 (completely emitting); the emissivity often varies with temperature. An example of a substance with low emissivity would be silver, with an emissivity coefficient of .02. An example of a substance with high emissivity would be asphalt, with an emissivity coefficient of .98. A black bodyis a theoretical object which will radiate infrared radiation at its contact temperature. If a thermocouple on a black body radiator reads 50 °C, the radiation the black body will give up will also be 50 °C. Therefore a true black body will have an emissivity of 1. Since there is no such thing as a perfect black body, the infrared radiation of normal objects will appear to be less than the contact temperature. The rate (percentage) of emission of infrared radiation will thus be a fraction of the true contact temperature. This fraction is called emissivity. Some objects have different emissivities in long wave as compared to mid wave emissions. Emissivities may also change as a function of temperature in some materials.
To make a temperature measurement of an object, the thermographer will refer to the emissivity table to choose the emissivity value of the object, which is then entered into the camera. The camera’s algorithm will correct the temperature by using the emissivity to calculate a temperature that more closely matches the actual contact temperature of the object. If possible, the thermographer would try to test the emissivity of the object in question. This would be more accurate than attempting to determine the emissivity of the object via a table. The usual method of testing the emissivity is to place a material of known high emissivity in contact with the surface of the object. The material of known emissivity can be as complex as industrial emissivity spray which is produced specifically for this purpose, or it can be as simple as standard black insulation tape.
A temperature reading can then be taken of the object with the emissivity level on the imager set to the value of the test material. This will give an accurate value of the temperature of the object. The temperature can then be read on a part of the object not covered with the test material. If the temperature reading is different, the emissivity level on the imager can be adjusted until the object reads the same temperature. This will give the thermographer a much more accurate emissivity reading. There are times, however, when an emissivity test is not possible due to dangerous or inaccessible conditions. In these situations the thermographer must rely on tables. Resource – Wikipedia – the original Work has been adapted.
Termite inspections are carried out in accordance with relevant Australian Standards.
Our Service Areas
Centrally based in Caboolture we service a large area of South-East Queensland including; Sunshine Coast, Brisbane, Logan, Gold Coast and Ipswich, as well as surrounding hinterland areas.
Call us on 1300 553 007 during business hours, Monday to Friday from 8:30am to 5:00pm to speak to one of our friendly team.