There are a number of areas where moisture can accumulate that are often overlooked in typical inspection processes, or require extensive damage to the property to find them. That is why many are turning to thermal imaging as part of their building inspection regimen.
Many insurance carriers for their part have now accepted the use of thermal imaging to identify moisture in interior walls. With thermal images, they can better detect water damage, reducing unforeseen conditions and later requests for more abatement. A thermal imager can show the presence of water below a surface because of properties such as heat capacitance which is the normal method of choice when looking for failures in flat or low slope roofs. The Evaporative Cooling effect is usually the most powerful indicator when moisture gets into studs, insulation and other interior wall components.