We used Tuftex corrugated plastic roof panels to cover the coop and the run. I love the look of it. However, last week after a wet spell, there were droplets of water everywhere underneath. I was walking around in the run and looked up and saw the droplets. The run is open on 3 sides and the coop is ventilated. I don't want droplets of water falling on the girls when it's cold out (well, not any time). Is this normal for this stuff?