https://1drv.ms/u/s!AgmNht6gsIbogbhYEosoGPDPmyGcOA
Thanks for the advice on the thickness and epoxy. The current floor is wrapped in a black mesh looking stuff — top and bottom, but yes, I think tyvek would also work. The slideout has its factory molding at the bottom, but I think it’s just a bad design from what I’ve read. Thinking about replacing it with some sort of flashing that actually goes all the way to the bottom (maybe those slide out skis) so the water can just go over it and flow into the bottom of the flooring).