Hi, I have a 2001 Monaco Diplomat and I had the interior completely remodeled during the winter of 2011/12 due to toilet water that damaged the tile floor in the bathroom. Anyway, the interior of the RV was completely gutted front to back including al walls and the big slide-out removal.
After the subfloor was re-decked, they put down new 1/8" luan plywood. Then they lay down what's called a "mul underlayment" which is not adhered to the luan plywood...it floats on top.
Then we had Mannington ADURA 16x16" tiles glued to the MUL laid on the diagonal (no grout joint) from the front thru the kitchen and the bathroom. Each box had 12 tiles and covered 21.33 sq ft. (We also had this same tile in the kitchen of our house too.) In the bedroom, the same luan and MUL was used but we installed Adura "Timber Ridge" lock planking. These are 3.66" wide and 35.66 inches long. There are 16 pc to a box which cover 14.5 sq ft. The flooring looks great and is very easy to clean.
The only issue we had is that the dumb RV dealer that did the restoration only stapled the perimeter of the 4x8 sheets of luan plywood, so the next summer the floor developed "air pockets or bumps" under the luan. Since the 16x16" tiles were not glued directly to the luan, I took a razor knife and carefully cut along 4 tiles at a time to remove the tiles along with the mul (which is glued to the bottom of the tile). Then I used 1" drywall screws to screw the luan back down to the subfloor to remove the bump. I used carpet tape along each adjoining tile to secure the previously removed tiles back into place. Now you'd never know that they were even removed.
