A thermal imaging camera is essentially a heat sensor that is capable of detecting tiny differences in temperature.
The camera collects the infrared radiation from objects and creates an electronic image based the temperature differences.
We use the camera's to find many defects not normally visible to the naked eye, From missing insulation to mouse trails in the attic, and in-floor heating to water damage behind walls.
There is no other great way to inspect heated floors.
Insulation problems are probably the most obvious use for an infrared camera. When insulation is missing or not installed properly, it’s quite obvious.