This is a simple qualitative exercise with a thermal imager. In the below images I am using a high resolution Testo 890 (640×480) with a sensitivity of 40mk to detect excess energy loss (conductive) due to missing or misapplied insulation.
Conditions for this survey were ideal with an inside (22°C) to outside (10°C) temperature differential satisfying the requirement of 10 deg C°.
All results were verified by visual inspection. Cool areas between warm stud/framing patterns indicate the absence of insulation. Extensive areas of missing or misapplied insulation causing significant comfort problems and energy loss. Childs play with the right equipment under the correct conditions.
This was a brand new million dollar property with a less than happy owner!!