Sounds good BIGDAVE. I do want to make sure it looks good, and straight since it'll be a focal point when you enter the home. An issue I discussed with friends who have some construction background suggested staples but I like the idea and originally stated I wanted to use nails in order to limit the damage to the board, so Joinheads is right on with my thoughts. I'm thinking since I will be laying furring strips over the popcorn ceiling I may also be able put in between a thin R-value insulation styrofoam boards (not sure if they're called boards) to increase the R-value of the cathedral ceiling. Any thoughts on this?
I did this on my attic. I used 3" 15 gauge nails. I was told to nail at the joist on the tongue of the board. I tried this, so that it would hide all the nails, but I found that it was difficult putting the next board on.
I tried another method which seemed more effective. I would get one in place, and face nailed. Then, I would add another board and tap into place. I would then add another piece. After I had two pieces on (neither nailed down) I would go back and nail so that it was easy to slide my pieces together. If you find a way that works, go with it. THere is not an exact science. I just went back and filled all the small holes, which were barely visible in the mix of all the knots and grain of the wood.