ftartagl

First of all you must fix the problem that created the rotten wood to start with. My toilet is in my slideout which rotted the entire floor under the toilet.On the slideout the floor is 1 layer of 7/16 OSB over a layer of 1/8 luan glued and screwed to and aluminum subframe. Not to leave out the tile floor above all. I used a multi tool to cut and a scraper and wood chisel to get down to the frame. Then I let it dry out for a while screwed down the OSB first then the luan. Then I applied a sealent to the wood and a commercial grade peel and stick tile. then reinstalled the cabnetry and tiolet. If your toilet is not in a slide. and has a tile floor, there will be 2 layers of OSB plywood. the main floor then a floating floor which the tile is set on. this prevents the tile from lifting and crackink with the flexing of the coach. I have an 04 Monaco Diplomat. i have taken all the tile out of my coach and replaced all the rot then installed engineered wood thru out. and peel and stick in the bath. good luck.