FYI... I am in Colorado at 6800'. I built a second story deck 7X16 of which 7X10 is the enclosed sun-room. The whole thing is on 3 6x6 posts 8' off the ground. I am thinking about insulating the whole thing - walls, ceiling, and floor. The off ground floor seems to be a unique setup. What would you recommend for insulation under the floor? Thanks!