In case anyone is interested, I have posted quite a few images to the PHOTOS section illustrating what the right thermal imager, used by a properly-trained individual, can show you. What you can see and do with many of today's thermal imagers when it comes to building sciences, diagnostics, and energy is nothing short of astounding. When used properly in conjunction with a blower door, the possibilities increase further still. I encourage everyone to check it out, and also actively participate in this discussion area. If you have any questions or would like to chat about what you can and can't do, please feel free to give me a shout.