We've done this on a few of our previous RV's. Well worth it. Now you've given me a little inspiration to get started on our new one. Previously I've always used just the foam board, but may try the batten this time. A little more aggravating, but we paneled over the foam board with luan last time.
John and Rebecca Dickson
Emma-7 / Little John-5 / Iva-1
Full Timing Again, Rev B
2013 Ford F-350 Lariat CC LB PSD
2015 SOB TT - With OC's Awning Poles (#8)
At least in Heaven, RVs will be perfect, and I won't have to keep fixing them.