On the front side of my fifth wheel I had noticed a bulge at the bottom above the metal trim piece. Today since the weather has cooled down to working conditions I removed the trim. I found evidence of water damage at about five inches from the bottom edge. I removed the dried wood and cleaned the are well. I cut some thin plywood to install to fill where the rotten wood was remove it looks good bulge is gone and should work fine. My question is what adhesive should I used the secure the wood and then the outside material? What should I use to seal the aluminum trim when I reinstall?