Should You Insulate Your Chicken Coop in Winter???!!!Should you put up insulation and fill in all the gaps? No.Should you do some natural insulation? Yes
Insulating The Chicken Coop for Winter
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Should You Insulate Your Chicken Coop in Winter???!!!
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Winterize a chicken coop. 6 easy steps to keeping your chickens warm.
Keeping Chickens Warm in Winter
Cold weather coop ventilation (chickens forum at permies)
Blocking drafts in the chicken coop (just for winter) - Murano