Canadian Manitoba Prairie Winter Coop And Run Ventilation Without Letting Snow In?

[whiteleghorn7]

From what I am aware, 1 square feet of ventilation per bird. I assume this is for both the coop and run. My run is covered in plastic sheeting.

My question is, How do people have ventilation without letting snow in? From what I understand, if I put hardware cloth over the ventilation gaps this may stop the snow, I've seen someone mention 1/2 inch hardware cloth, but the squares seem too big that they would let snow in? Would I use 1/4 inch then? Or is there another way? Wondering if anyone has any experience with this.

I'm in southern manitoba, canada, where winters reach as cold as -40C, but range from -10 to -30 on average, at times with very strong winds and a lot of snow.

 

[Ted Brown]

Look herein for the Woods coop design. Build and position that correctly.

I am on the Ontario-Quebec border, climate very similar to yours, no -40Cs.

The Woods design is open on the front and snow sometimes enters (1/2" HC). Usually gone within 24-48 hours through evaporation or the chickens mucking about.

 

[aart]

From what I am aware, 1 square feet of ventilation per bird. I assume this is for both the coop and run. My run is covered in plastic sheeting.

My question is, How do people have ventilation without letting snow in? From what I understand, if I put hardware cloth over the ventilation gaps this may stop the snow, I've seen someone mention 1/2 inch hardware cloth, but the squares seem too big that they would let snow in? Would I use 1/4 inch then? Or is there another way? Wondering if anyone has any experience with this.

I'm in southern manitoba, canada, where winters reach as cold as -40C, but range from -10 to -30 on average, at times with very strong winds and a lot of snow.

Would help to see pics of your coop all around, inside and out.
I had a scenario where snow was blowing in, filled the spaces with 1" thick furnace filters.
https://www.backyardchickens.com/articles/ventilation-baffling.75434/