As with most Termite inspection we take the complete home into the inspection. As a LIC. Termite inspection in Calif. I look for the areas that are going to have the best chance for an infestation. and work out from there. This home had a specific infestation in the kitchen walls that was extending from the sub-structure so i had an idea of possible condition in this area. TA…DAAAAA…
The process i use is to fan a wall area with a low heat space heater at the same time I’m viewing the wall area. I look for images to come to the surface.
The window can be short A few seconds or just abit longer 8 to 10 seconds. Have your finger on the triger! This will depend on the moisture content of the Sheetrock or the wall materials you are working with. With sheetrock keep im mind you are heating up the paper not the wall. I use a FLIR B2 160x120. Res.
Kevin i find Sub-termites in new homes all the time. slabs homes i look at plumbing pipe block out or small cracks in the concrete. They like the paper and the Glue.
Brian. I would IR Image a home just as you would be looking for moisture and be inspecting for other condition at the same time and if you come to areas you think may have an infestation stop and go over it a few time then hit it with a space heater. see what come into view.