How does an IR camera work?
Infrared Energy Detection
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.
There are varying degrees of certification that a infrared thermographer can have. At minimum for home energy audits, the tester should be certified as Level 1 or supervised in an attempt to achieve this level of certification.
The tester should review all areas of the home, walls, knee-walls, ceilings, attics, etc. If the test is being performed when it is warmer in the home than outside, then areas that are of concern will be highlighted in blue. This indicates areas where there is heat loss. Heat loss can be related to missing or poorly installed insulation, poor construction, poor window or door sealing, etc. Another potential finding is water infiltration. Based on the images, a properly trained and certified thermographer will be able to give you the proper guidance. Infrared cameras should be a part of any professional home energy audit.
Please review the following demonstration videos to better understand the benefits of Infrared Cameras:
Infrared Camera Demonstration Video 1
Infrared Camera Demonstration Video 2
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