Carlos,
To clarify, you are not going to insulate? I would think you'd need to and need A/C down there, no? If you also need the insulation, why not consider SIPS? They nail in the outside of the frame with spikes, they are structurally reinforcing, they will insulate for A/C, and you can screw drywall to the inside of the sips and finish with quarter round trim if you wish. Or you could use the Sips with spacer strips on the posts and tuck the drywall behind the posts.

Last edited by brad_bb; 02/23/08 02:52 PM.