Winter coop problems

kcal

Chirping
Apr 6, 2021
40
44
94
NW Illinois
I have a couple different questions regarding our winter coop. My husband and I were both around chickens growing up, but this is our first flock and first coop we have set up.

We are located in northwestern IL. Our winter has been very mild up until the last 5-7 days. We got our first accumulating snow and temps dropped quite a bit right after (negatives at night and single digit days for two days). They’re back up to the mid 30’s but expected to drop again in 2 days. With the colder temps, I started noticing that it seems our ventilation cut outs may be too low and acting more as a draft allowing air to blow on the girls. I know those temps are bitter, but they’re acting like it’s affecting them quite a bit. Here’s some photos - they’re old (from before our girls were living in it full time) but I won’t be able to take new pictures until later. They should give an idea of what I have going on.

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The coop is a 12x8 shed. It faces west, run (shared with two goats) is to the east. We have a large post frame building to the south - the west end is even with the west side of the coop, and it runs the entire length of the coop and run + about 10 feet more. They weren’t there yet in these photos, but where I’ve drawn the red boxes are two top-hinged pop windows covered with hardware cloth. Our nest boxes are inside, but you can see the outside access for the rollaway box on south end.
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Here’s the back, there’s now two long, top-hinged pop windows there as well.
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Inside - roost area is on the north end
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And nest boxes on the south end.

Our chickens all roost on the top, and the top roost is pretty high. So I know some air is coming in on them. I’m wondering - is there somewhere else I can put ventilation that won’t cause drafts over the chickens while they roost? There’s pretty much no over hang on the gable ends, so I was thinking cutting vents in the soffits on the east and west side. We have 16 chickens - I know that affects how much ventilation is needed.

Also - our temps are going to dip into the negatives again starting tomorrow night -6F tomorrow night, then only get to 5F Thursday and will go as low as -10 to -15F Thursday night. With those low temps, should I add some supplemental heat? I know heat can be controversial. I haven’t supplemented them with heat since they’ve been in the coop, so not sure the best way to do it safely. I have a low watt heat bulb, but I only want to set that up as a last resort because of fire risk. I have the ability to check the coop throughout the day and night if necessary.

One thing to add (sorry, I know this is long) - my husband is currently out of state, 3.5 day drive, for work with an unknown return date. I likely can’t cut new ventilation and predator proof on my own while wrangling our toddler in the next 1 or 2 days before the cold hits, so I could really use both short term and long term ideas for keeping the girls comfortable without restricting airflow and risking them getting sick.

Thanks in advance if you made it this far and can offer any suggestions for short term and long term solutions!
 
Do you have ventilation in the soffits at all? If not I'd remove any wood from there and cover with HC. I'd also put large ventilation cutouts in both gable ends and cover with HC.
Great, that’s right in line with what I thought I need to do. I’ll probably have to wait until my husband gets back home. I’m decent with tools, but I have rheumatoid arthritis so my hands don’t function the way they used to…don’t think I can get that done before the next cold snap hits.
 
Great, that’s right in line with what I thought I need to do. I’ll probably have to wait until my husband gets back home. I’m decent with tools, but I have rheumatoid arthritis so my hands don’t function the way they used to…don’t think I can get that done before the next cold snap hits.
As mentioned above, burlap, or furnace filters over the lower ventilation you have will help reduce the drafts until you can modify the coop.
 
You could also temporarily take out the top roost.

If you need more space for all the birds to roost you can put the roost board onto some concrete blocks for temporary use.

View attachment 2950193
I thought about the top roost. There’s plenty of roost space - it was built as a ladder style with 3 levels. One thing I discovered today though is since there’s a strong cross wind with this front moving in, that air is coming in the two windows in the front doors and blowing across the top and middle roosts, so I don’t know if I’m gaining much. It’s not a horrible draft, but enough to chill them once the temp drops back down.
 
Have you actually checked for a draft at the roost location? Ideally you'd want to ID which specific vents are the issue, but for a temporary solution, you can staple feed bags to overhang the existing vents, or buffer with burlap or furnace filter material to help blunt any drafts coming in.
Yes, I did verify a draft at the roosts. It’s not normally an issue since the strong winds tend to be blocked quite a bit by our pole barn and the field to the west (we left a few rows of corn up as a bit of a wind block), but lately it’s been blowing straight across there and going directly in the two windows on the front doors and I can feel it on the top two roosts. The top hinged windows allow me to adjust how far open I have them, I have just always propped them open with a couple boards because it’s easier on my RA hands than messing with the chain. Would it help if I lowered them so they aren’t open as far and the wind can’t blow as freely into them?
 
As mentioned above, burlap, or furnace filters over the lower ventilation you have will help reduce the drafts until you can modify the coop.
Thank you. Do you think that will be enough to keep them from getting too cold with our temps expected to drop below -10F? Or should I plan on doing something more to help keep them warm?
 
The top hinged windows allow me to adjust how far open I have them, I have just always propped them open with a couple boards because it’s easier on my RA hands than messing with the chain. Would it help if I lowered them so they aren’t open as far and the wind can’t blow as freely into them?
Good to know - yes lowering them a little to block out more wind can help. Obviously you don't want them completely closed, but if you can prop them open with shorter sticks, that should be enough to still provide ventilation but cut the worst of the wind.

Thank you. Do you think that will be enough to keep them from getting too cold with our temps expected to drop below -10F? Or should I plan on doing something more to help keep them warm?
If all the birds are healthy teens/adults they should be fine in those temperatures as long as they can stay dry and relatively draft free.
 

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