Using infrared to help locate moisture problems in buildings, while effective in the right conditions, can be a challenging application for a thermographer. The moisture in question within a structure could be at the surface or, even more difficult, interstitial, making detection close to impossible in certain situations. Additionally, an infrared camera alone is not able to detect and confirm the presence moisture (or mold for that matter). Instead it is used to locate thermal patterns that may be associated with the presence of moisture. It is the task of correlating that thermal signature with a moisture meter where infrared imaging brings the greatest benefit to thermographers conducting moisture investigations. In order to do that successfully, a thermographer needs to understand what conditions are required and the types of patterns they are likely to encounter.