I agree Russell, I say that because the ones that aren’t always noticeable are the ones that will someday show themselves after they move in. I look closely at the windows and if I see them I call them out. However, I don’t want to go around with an ice cube trying to find fogged windows. If the window shows no signs without further investigation, I do not want to spend an extra 15 to 30 minutes (depending on how many windows there are) trying to dig something up. Many times the windows are too dirty to see the signs. I could spend that time looking for more significant issues. I have had only one call back in over 1500 inspections regarding a fogged window I didn’t see, so it is not worth it for me to spend more time than I do already on windows. It would be nice if all sellers would have their windows cleaned, the home de-cluttered, etc at the time of inspection, but we all know that isn’t the case, so finding every possible fogged window is just not practicle.