Starb3an , 10 months ago I consider “exterior” to mean one side of the wall is air conditioned/heated, and the other side is not. Therefore, an exterior wall has insulation in it. An interior wall is generally hollow.
I consider “exterior” to mean one side of the wall is air conditioned/heated, and the other side is not. Therefore, an exterior wall has insulation in it. An interior wall is generally hollow.