I was out in the pouring rain last Sunday to meet up with another van dweller. When I opened the side door, I was shocked to see water all over the floor! The only thing that got wet was my cot, but I had to mop up the floor and when I checked, the wood frame around the fan was wet. I also noticed that the top was not completely closed. Could that be the cause for the water coming in? Please let me know if you have had a similar experience and how you resolved it.