Design flaw in Mobile Suite to cause leaks?

[Narnia]

Hi everyone! We have looked at two MS 36SR3...2008 and 2010.

In both of them, the floor in the rear of the coach had water intrusion below the window area. The 2008's wall on the passenger's side was rotten and cracked and the carpeted floor was darkly stained near the walls. The baseboards and the corner moldings were loose. The passenger's side was worse than the driver's side.

The 2010 had signs of this exact same problem in the early stages. The carpet had been wet repeatedly, so that the computer hutch that was sitting there had grown mold on the hutch and on the carpet, leaving a black impression. Once again, the passenger's side (the wall had already bowed out towards the outside) was worse than the driver's side. The baseboards, as well as corner moldings were loose.

Is this typical of the MS? Is it an inherent design / structural flaw? Does anyone know what would cause this issue? Has anyone had this issue? How have you remedied it?

Thanks for your help and input!