Precautions to take using half completed bathroom
Duct tape (very sticky, possible removal of more than just the tape) or Electrical tape (just sticky enough, easy removal) over open seams. Otherwise, just tape cheap plastic painting tarps from above the shower right down into the tub's walls, tight will keep blowing movement to a minimum. If it's a shower &amp; not a tub you'll need tarps down to the drain &amp; all overlapping seams taped with duct tape, just lay loose 2x4's around the floor perimeter to keep the shower's shape.