Open coop in winter.

[wamtazlady]

Our local dollar store has clear plastic shower curtains. I bought 6 to cover 3 sides of my run.

 

[llombardo]

I have that coop and this is what I did. I added weather stripping on the nest box door too. I added windows using Plexigl glass to let sun in. The one windows opens for air. I left the top 4-6 inches on the top right side and along the back open for ventilation.

I even added a light and a plastic flap door(can't see it here because the door is open. I ran the extension cords through the pvc on the ground.