Salem back exterior wall

[Pinesman]

I have a '08 Salem 356rbds. Does anyone know if the rear exterior wall is the same construction as the side walls. My side walls are all solid feeling anyplace I touch them but the backwall feels like there is nothing behind the fiberglass. There are no signs of water entry and I would hate to think the whole back wall rotted away. Thanks.

[BradinOhio]

My last TT (a Keystone Passport) was like that from day 1. The exterior side walls were all very solid, but the back exterior wall, when pressing on it from outside the TT, would "wiggle" for lack of a better word. There is no difference in feel between the side wall versus rear wall versus front walls of our current Flagstaff. All of the exterior walls feel very solid.