I don't pay any attention to it. Wood I have stacked or heaped outside is for future years, and remains out there to season, uncovered, for a year or two, (or more) until about a year before it's gonna get burned, then it goes into the shed...where it really doesn't matter what side's up, since it's all under roof. I think if I was gonna worry about my outside wood, I'd just stack it however it wants to be stacked, then I'd throw a tarp over the top of it. I wouldn't give a thought to how the bark's oriented. A pretty good percentage of my split wood has no bark on it anyway...either it fell off or the split was from the interior of the round where there was no bark to begin with. Before my shed was built, I had wood stacked out in the open, and I just kept a tarp over the top. In fact, I stapled it to the wood in a few places to keep it from blowing off. The primary function it served was to keep the snow & ice off the wood stack, for convenience in handling and bringing it inside. Rick