I would like to cover the ceiling a porch with something. What is there now are 2X4 appearance "beams" spaced 16 inches apart. I like the look of bead board, but am thinking that the 1/4" thickness isn't substantial enough. It may end up sagging.
So what I thought I might do is cover the area with plywood first, then attach the bead board to the plywood. Or, attach (glue?) the bead board to the plywood first then install over the ceiling.
Good idea, bad idea?