I had planned to stain both sides of the boards. That's good enough for the siding? Or white wash is better? I didn't want the white wash to seep through the cracks and onto the stain.
I think if I was going to go to the trouble to seal the floor from oyster I would also sealed the plates studs and of the walls also.
It would make for easier spray hose cleanout.
Is that different from what I said?

Actually, now that I'm thinking about it, they did white wash the floor before the frame went up.