I am a big believer in humidity tents to protect from wind and reduce the pressure on the new/weak roots. Another "trick" I have use to good effect is that when transplanting large landscape junipers in the wrong season, you can cover the foliage in burlap (single layer) and it accomplishes more or less the same thing - wind protection / sun protection. When you water, the burlap will stay moist for a couple of hours and (at least I believe) keep the relative humidity a little higher by the foliage.