How far down should sheathing go?
Moreover, how far should sheathing overlap foundation?
Re: Sheathing overlap You don't want the very outside surface of the wall to be flush with the foundation. You want the drip edge to be at least 1/2 inch outside.
Beside above, which side of plywood goes out?
For most projects, these types of plywood will work because you can put the higher rated side facing out while the lower rated side is hidden facing in.
sheathing does not have to be secured to the sill plate. This same post started on TIJ--I figured I would try here as well. As Brandon Chew (PE) stated on the other site, the sheathing must be secured to the top and bottom wall plates and studs.