Did you use plywood over rigid foam insulation?
I am getting ready to do the subfloor. My plan is to put down the pink Foamular insulation and then plywood. I am not going to screw anything through the metal floor.
I looked through some build threads but I couldn't find some details:
Did you glue the foam down?
Did you glue or tape pieces of foam together?
Did you glue the plywood to the foam?
How thick of plywood did you use? (Should you have used thicker?)