Joseph - thanks for the response. I was extremely frustrated last night (still am). I address the roof every year and it looks better than new. Apparently the side marker lights are leaking (I think), and its a very slow leak over a long time, so you dont see anything until its too late. I thought it was just the drivers side, now I know its both sides. The laminate flooring is ruined on the drivers side but appears OK on the passenger side. Everything else on both sides is wet, rotten, and moldy. On top of that, as I dig into it I am very unimpressed with the construction in these areas. We bought the PC because I felt they were better than most, well this is worse than most and its disappointing to find this on top of everything else. This is the fourth major item for us, we have had drive shaft issues, had to pay a body shop to fix cracks in rear cap, and windows that continue to fail, all in 20K miles. Plus the 50 or so minor RV industry standard mandatory problems.....
RoadToNowhereRV - thanks a lot for the pics. The only way to fix this right is to open it up, dry it out and replace everything that is soft - as you know. The hardest part is to start cutting into it, the pictures will be a big help.