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12-28-2023, 07:35 PM
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Moderator
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Join Date: Feb 2015
Posts: 7,714
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Chicken Co-op, Vapor Barrier
I've got a question for the group. I'm setting a record for the world's longest chicken co-op build. The shed is built and tin has been ordered and is scheduled to arrive soon. This structure will never be heated but I am planning on insulating it. As it's a chicken co-op, there will be quite a bit of moisture inside and out and the door will be open most of the day, to allow the chickens in/out. Should I be installing vapour barrier on both sides (inside and out) of the insulation, just inside, just outside, neither, underlay for the roof? I'll be installing a vent for the attic, just not sure how necessary all the other stuff is as it will never be heated and open a majority of the time.
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12-28-2023, 10:09 PM
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Join Date: Jan 2012
Location: 204
Posts: 5,464
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The problem with a chicken co-op is the chickens outnumber you, and you'll never have the votes to support putting down the old hens when they quit laying.
I think this is why you rarely see chicken operations using the cooperative business model.
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12-28-2023, 10:14 PM
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Moderator
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Join Date: Aug 2012
Location: Wheatland County
Posts: 5,648
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We used a small hen-door at floor level, kept the building much warmer & them laying better in the winter. Cheap insulation with no vapor barrier.
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12-28-2023, 11:17 PM
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Join Date: Oct 2009
Location: Medicine Hat
Posts: 4,276
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To my knowledge a vapor barrier is a death sentence for chickens.
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12-29-2023, 01:07 AM
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Join Date: Jul 2010
Location: Edmonton
Posts: 11,861
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Generally, a vapor barrier is on the inside surface (inside of the insulation just like a conventional "heated" house).
However, if the shelter isn't heated - the purpose of the vapor barrier isn't required - which is to prevent condensation from forming on the inside wall causing rot, mold, etc.. as the cold air contacts a warm surface causing condensation (the same way you get frost around doors/windows on the inside of your house where there are small air leaks).
I've also, recently, seen many innovations (last couple decades) where the vapor barrier is applied to the outside of the structure with new building materials (zip sheathing, the impermeable new house wraps , etc...) - so as long as you don't "trap" moisture between two vapor barrier layers, it seems the basic principle will apply.
So - definitely don't put a layer inside AND out as it will cause more problems when/if the temperature differential causes some condensation = trapping moisture is a NO-No.
For a chicken coup ..... unheated .... I honestly wouldn't bother unless you are looking to help with air/draft protection.
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12-29-2023, 06:29 AM
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Join Date: May 2007
Location: Westlock
Posts: 5,536
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No heat & you'll get frozen combs , feet & eggs.
Roost should be like a 6"+ log. If the roost is like a 2x4 or 2x6 with the sharp edges their toes hang over & freeze. With a log (even split in 1/2) will keep their feet/toes inside feathers.
Deep "duff" for them to scratch inside & can be cleaned out & composted for a garden. Compost for 2 years min.
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