i got a call today to do a bid on a 562 square 1/4 in 12 pitch.
it has a standing seam metal over iron beams with rolled insulation. ribs are 20" apart. 2 3/4" deep
can i cut 2.7 iso board and fill in between the ribs, then maybe iso over the whole thing and fully adhere EPDM. i will try to get pics tommorrow maybe.