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Energy and heating costs
Thermography – a serious trade or mere trickery?
In times of energy certificates for buildings and steadily rising energy costs, a new service sector is becoming more significant for home owners: thermography. The term thermography refers to the thermal imaging of a building to locate thermal bridges and other weak points in the building's fabric. The goal of this process is to use an infrared image of the building to pinpoint the thermal bridges so that corresponding renovations can improve the energy usage of the structure.
In thermography, a thermal image camera is used to measure the current state of the building, using special software to show the temperature of the building with false-colour image.
Several factors play a role in the quality of the imagery, however. Next to the equipment used, other factors can influence the picture such as external heat sources and thus falsify the results.
If you want to have a thermograph made of your home, it is important to pay attention to the following:
- Images should only be made in the early morning or late evening. Measurements taken during the daytime should – if at all – only be made with heavy cloud cover to ensure a usable state.
- The difference between internal and external temperature should be at least 10° Kelvin. Dry humidity and wind speeds of no more than 2m/s are also important.
- The rooms inside the home should all have the same temperature (this can be achieved by leaving all interior doors open at night).
- The indoor temperature must be measured and documented.
- All windows must be closed the night before, and remain closed.
- The heater's night programme should be deactivated the day before measurement.
Check the energy efficiency of existing windows with the GEALAN energy savings calculator.
Anyone who is wondering if it is worth it to replace his old windows with new – and thus save heating costs in the long run – can see for himself without an expensive thermograph. With the GEALAN energy savings calculator, home owners can find out for themselves just how much they can save.