first all i would uncover the top of the pen with the plastic sheeting leaving about 1 inch gap for feash air on the human door i would leave a opening about 2 inch of the bottom and cover the rest with plastic. also i would put down hay in pen.
on your coop area i would put plastic on the north west side.
and put hay down under there roster.
for them to roster on i would get a board that is 2x4 with flat side up.
and make a cookie tin heater to put under your water so it does not freeze up. iam going to try a 60 watt light bulb in it to try it out but i am placing the cookie tin heater on cement pad first that will my heather in the coop for my first winter
cookie tin heater by hinkjc
https://www.backyardchickens.com/forum/viewtopic.php?id=107951
i am worry about the snow load on your coop and pen
if you get 1/2 of snow on your coop it will melt due to the sun and at night it will freeze back into ice and the chicken wire n plastic will cave in over time and so you will need a stronger pen roof too.
your coop will not support and weight on it too.
i would make coop doors for your coop and have only one open during the day
good luck
laura
on your coop area i would put plastic on the north west side.
and put hay down under there roster.
for them to roster on i would get a board that is 2x4 with flat side up.
and make a cookie tin heater to put under your water so it does not freeze up. iam going to try a 60 watt light bulb in it to try it out but i am placing the cookie tin heater on cement pad first that will my heather in the coop for my first winter
cookie tin heater by hinkjc
https://www.backyardchickens.com/forum/viewtopic.php?id=107951
i am worry about the snow load on your coop and pen
if you get 1/2 of snow on your coop it will melt due to the sun and at night it will freeze back into ice and the chicken wire n plastic will cave in over time and so you will need a stronger pen roof too.
your coop will not support and weight on it too.
i would make coop doors for your coop and have only one open during the day
good luck
laura