I am installing 12" shiplap barnboard over some kerf cut RBB siding (similar to T1-11). I will be hanging it vertically. I think I am going to use a senco screw gun to secure it.

1) Is screwing the right way to go?
2) What size collated screw should I use?
3). How far apart should I locate the screws or nails?

Any advice is appreciated.