Here's the coop wrapped in the poly tarps for winter. The poly tarp was lifted that day to let in fresh air but I left the mesh shade tarp down--probably to block some of the wind.
The tarps come in all sizes. I've seen them as small as 5'x5' but you could always cut them. If your coop is...
I use a shade tarp meant for chain link dog kennels and run some bungee tarp holders through the grommets to some eye hooks screwed into the framing of the run. It keeps much of the rain from entering as well as providing shade. In the winter I use a clear poly tarp in the same manner to keep...