The underside of this overhang, also known as a cantilever, is directly connected to the floor of the above room. This homeowner previously had no insulation in this space, as can be seen in the before photo. The after image shows SilverGlo rigid board insulation installed in this Claymont, DE home, and air sealed by Dr. Energy Saver. This will prevent air from getting under the floor boards and causing temperatures changes in the room.