In the new houses in my neighborhood, I see that they use some kind of 'home wrap' on the wood before insulation. I could see them installing this on the outerm

In the new houses in my neighborhood, I see that they use some kind of 'home wrap' on the wood before insulation. I could see them installing this on the outermost walls of schools, sensitive/government offices, or other places (e.g. churches, aforementioned concert halls, hostels, etc.) between the outer walls and insulation. However, you are correct with your comment. In some cases, though, this could be desired, e.g. a hotel that wants to provide, track, and bill for WiFi on a per-room basis.