Is Infrared Thermography intrusive or destructive?
No. However, any coverings over electrical panels will need to be removed so that the components behind the panel can be viewed. Additionally, when a moisture source is discovered or suspected, it is confirmed with a moisture meter that utilizes two small probes about the size of a sewing pin or tack. If these holes are created in a waterproof barrier, they should be sealed with an appropriate caulk or other sealant after the verification of moisture. If moisture is found within a wall system further recommendation for repairs will be made and should only be made by licensed specialist familiar with local building ordinances and current construction techniques.