Sheathing
Every house that I've ever built has it's sheathing installed horizontally. The reason for this is purely for strength - horizontal plywood (or drywall or whatever 4x8 material you're using) will increase a wall's strength by spanning several more studs than if installed vertically. Also, plywood is always at it's strongest when it's grains run at a right-angle from the framing member. Don't forget that all your exterior plywood should be half-lapped for additional strength.
Hope this helped.
Every house that I've ever built has it's sheathing installed horizontally. The reason for this is purely for strength - horizontal plywood (or drywall or whatever 4x8 material you're using) will increase a wall's strength by spanning several more studs than if installed vertically. Also, plywood is always at it's strongest when it's grains run at a right-angle from the framing member. Don't forget that all your exterior plywood should be half-lapped for additional strength.
Hope this helped.