The benefits of a thermal image on a house inspection report, is for your clarity in the understanding an issue. It is possible to see with duel imaging where in a room an issue is evident from above the ceiling. Here in this photo, it's clearly showing where the insulation bats have been removed in the ceiling space above. A photo from inside the ceiling cavity gives no direction or location of an issue. A thermal camera can also assist in finding water leaks, over heating electrical wiring and many other temperature related issues.