Never except when unavoidable should a tent be rolled up when wet. Even if it be only damp from dew, an unprocessed tent will soon mildew if packed away in that state. The parts that require most drying are where the material is doubled, as at the seams and along the edges: the bottom edge especially, and the sod-cloth, are sure to rot if not thoroughly dried before stowing away.
To protect the tent in transport, it should be carried in a stout bag; otherwise it is likely to be punctured.
Tent pins are to be carried in a bag of their own, not only to save them from being lost, but also because their inevitable dampness when camp is struck would rot the tent if they were rolled up with it.