What precautions should I take for the 1,50m x 1,50 m house I built for my hens, rooster and ducks to face the coming winter?
Here where I live, at 800m altitude it can get to -25 during the cold season. The house I built them has one layer of 1,50 cm circa width wood planks.
I was thinking about adding a layer of styrofoam, perhaps some nylon (but this last is not good for air flow and dryness)...
What should I do more?

Topics: farming, animals, building, cold, ducks, winter, materials, chickens, infrastructure, livestock, poultry, sub zero