I know how you feel. I was closing and opening their door long after the secure run of the Chicken Palace was constructed.I love how the hens connect me to dusk and the seasons, like 1000s of years of my forebears who lived before modernity.
In a way, I'll be sad when the new roost is finished and I'll no longer be obliged to close the door after the hens have roosted.
It took the snow mountain to convince me that they shouldn't have to wait on me hacking my way through the ice before they got to go out and play.
I still close the door after them if it is very, very cold. I don't think it makes that much difference but it makes me feel better!