So, I have a new coop with about 6 inches of pine shavings in the bottom. I am trying the deep litter method and was giving the shaving a stir when I noticed that the bottom layer of shavings is wet. All over. No sign of rain leakage. The coop is about 16" off the ground, the floor is treated plywood with a sheet of billboard plastic(heavy duty) lining the wood and then the shavings. I'm pretty sure I have plenty of ventilation as the temperature inside of the coop seems to be very close to outdoors. Any ideas of why this is happening and how I can fix it? Thanks in advance for any advice given!