Infrared thermography operates by measuring the infrared energy of any objects surface and producing a detailed visual image showing its temperature profile. Since IR operates without physical contact, it gives building managers a safe, on-line, and cost effective means to evaluate a buildings operating integrity. While many borderline problem areas typically remain undetected during an off-line physical inspection, they can easily be seen using infrared.
These are the thermal pictures I took from one of your customers. We found the whole piece of insulation is missing (see the darker area), and air duct leaking (see the orange area)
This is a very rare case you see both missing insulation (cold) and leaking duct (hot) in the same picture.