Tile under carpet in 2009 Jayco Greyhawk 31FS???

In the Jayco Melbourne that I used to own there was linoleum under some of the carpet. This was in areas that had tile on one side and carpet on the other. There was tile in the bathroom and carpet in the bed room but part of the bedroom had tile under it, but only part of it. I learned this when I had the area under the bed opened up to work on the transfer switch that was under the bed. It is not safe to assume that all of the carpet has tile under it.