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Winterizing the Chicken Tractor

February 5, 2019

Winterizing the Chicken Tractor


If you keep your chickens in a fully fledged building with insulation and real walls etc. then you’re all set for winter.

When we built our little tractor in the summer of 2017, I knew that I wanted to keep the hens through the winter, but still hadn’t decided how we would go about that. We have a large shed that we currently aren’t using for anything, and I think down the line that will become the layer coop and we can use the tractor for meat birds. For the time being though, we have this small coop, on wheels, mostly made of plywood and 2x4s.

Why Winterize?

Firstly, I know lots of people have different opinions on keeping chickens warm in the winter. I am, in general, of the belief that if you have a cold hardy variety, and they have shelter from moisture, wind, and can get up off the snow, they will survive the winter. My concern was that our little coop can only partially do these things.

What are we dealing with?

Our property is also on a north facing hill, so when those harsh Nor’easters start rollin in, it can get pretty bitter. So wind protection was the first thing added to the list.

Giving the chickens somewhere to get off the snow wasn’t super hard, they can already go inside the small coop. I checked for any small gaps where snow might have come in a sealed them. If I can keep out the snow, I can keep out the moisture.

Biggest Hurdle

My next thoughts went to temperature. A lot of folks I know of who keep chickens in small coops and tractors live in lovely climates with mild winters. Our winters get cold. Extremely cold. Like, -40C sometimes. I needed a definitive answer about how cold is too cold for a chicken. No one seemed to have a straight forward answer. Most of my canadian chicken owning friends use real buildings with proper walls. These will insulate and keep the temperature inside comparatively warmer than outside, but nobody that I know keeps a thermometer inside the coop. By standing in a few on those really cold days, I decided to make a decision about how cold it felt, and use that as my basis. I went with -20C as my coldest threshold.

So what did the coop need to have:

  • Protection from wind
  • Not too much snow buildup in the run section
  • No humidity and moisture build up inside
  • Maintain a temp higher than -20C

Wind & Snow

To start with wind protection was pretty easy, and inadvertently gave the solution to snow build up. I covered the chicken wire run with Vapor Barrier (The plastic sheeting used in walls to prevent moisture damage.) UPDATE 2021: The picture below shows the run is open to the snow at the far end. This didn’t work and let too much air and moisture in. The run is now fully covered in vapor barrier. I got the idea from closing the family cottage at the end of the season. We would staple large plastic sheets over the screen porch to prevent moisture and wind damage.

Front of coop covered in snow

Winter of 2019-2020, this run got fully covered. The snow coming in in this picture ended up being an issue come the thaw. The run is now nice and dry all winter long.


Preventing too much moisture build up inside the coop mostly just meant patching up any small gaps, and shingling the roof. The coop also has a couple window holes at the top of two walls. I didn’t want to seal these off completely in case of condensation, but left fully open they would allow freezing drafts to get into the coop. In the end I used more vapor barrier to cover about 80% of each, leaving a small gap at the top to allow humid air to escape.


Lastly, maintaining temperature. Putting a heater in the coop worried me a little bit. I had heard a lot of conflicting things about them, but in the end we used one. For safety reasons we didn’t use a huge one and it ended up being a sort of supplementary heater. We wanted the inside temperature to be warmer than the outside, but having a colder coop in the winter can help kill off parasites. So not too much warmer. It simply needed to be more bearable then outside. The goal was to maintain temps above about -15, and so far we’ve managed it. Our girls are cold hardy breeds so they should have the feather density to tough it out.

chicken heater

Our plan was to insulate the walls and nesting boxes with something that could be removed in the spring. Allowing us to maintain a warmer temperature then the outside air.

insulated coop

Straw Insulation!

I used a large sheet of corrugated plastic that I got from a car dealership. (It was one of their huge sale signs that they weren’t using anymore) I measured and cut it then screwed strips of it onto the inside 2x4s of the coop frame. This left a gap between the corrugated plastic and the plywood, which I stuffed with straw.

winter egg

Around the nest boxes I used a sheet of foam insulation. I also put a hay bale underneath to prevent snow buildup underneath potentially damaging the wood.

insulated chicken nesting boxes

Once all the insulation was in place, and the heater was added, it successfully held the temperature about 10 degrees higher than the outside temp. Not as amazing as I was hoping for, but so far everyone seems happy. There’s been no signs of frost bitten chickens and only a few broken eggs.. (which is simply inevitable) We also added a light to help us to keep getting eggs, and it also lets off a touch of warmth.

chicken coop light

Though the deep litter method doesn’t work perfectly in a super small chicken coop, I have been layering in lots of fresh straw regularly. This helps create a barrier from the frozen ground under the floor.

There’s a temperature sensor that we have hooked into our home automation that controls the heater. The light has been wired into our system as well so that we can adjust the light hours. The coldest temperatures we’ve had inside the coop so far this winter were right around -15C. And we’ve had no problems with our chickens.

chickens in winterized coop

Digging the coop out of the snow every morning has been fun, and our mounds of shovelled snow are getting pretty big. All in all the winterizing has been successful.

snowed in coop

How do you prep your chickens and coop for the winter? Drop me a comment and share your tips!

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