I'm ready to put my Sinta board 54"x96" up and am now debating whether or not i need to put it on a frame. What I'm thinking of doing is attaching the board directly to the wall, using 3/4" crown staples (delivered with my pneumatic stapler) all around the boarder. I will then add a velvet boarder over top of it made of 1x3s that i already do have constructed. The question is, does everyone that uses the PVC substrates, attach them to a frame first and then to the wall, or is there any harm in attaching it directly to the wall? Aside from the future and taking it down, moving it etc. Thanks!