I have a 23' X 18' outdoor pavilion that I want to add Azek fascia to. The beams were all done with 2x8's, so my plan was to use 2X10 Azek trim (5/4 size). For the 18' sides, I can order the trim in 20' length so its 1 continuous piece. The 23' front + back will need to be seamed. So I just get 2 12' Azek pieces and seam in the middle or is here a better way to hide the seam?