In my climate it would turn my coop into a rotisserie. In a cool-summer climate it would be a great idea. In other climates it could be good in the winter and need a shade-cover in the summer.
The problem with 1/4" hardware cloth is that it's made from finer-gauge wire.
That means that though...
I use natural branches/tree trunks that are no thinner than my wrist and not thicker than my husband's wrist. 2-3" diameter, I suppose?
I'd have to buy 2x4's but young pines and scrub oaks are weeds that would have to be cleared anyway.
I don't worry about rot if the inside of the coop is...
I agree, roosts are generally placed near walls for human convenience.
But unless there are drafts from wind blowing against the wall, good ventilation means that they are unlikely to be colder. I'd probably want to avoid them directly contacting the metal since it's a good conductor, but 18"...
I wouldn't because all the bedding would jam in the tracks and make it very difficult to open and because, unless you're opening into a roofed area, rain would come in. :)
That's why people usually recommend top-hinged windows.
I can't make recommendations in re: mice because I've never had a mouse problem.
My new coop is going to be completely covered in 1/2" hardware cloth and have an anti-digging skirt of 1/2" hardware cloth.
I pity the mouse that gets into my chicken run during the daytime. I've noticed that I...
The problem with 1/4" hardware cloth is that it is usually a thinner gauge and can't be trusted to keep out raccoons and other strong predators. I have a place on my coop where either a big raccoon or a strong dog *almost* got through the 1/2" hardware cloth.
Breed makes a big difference.
My California White was in the background of a couple pictures where I was asking about the sex of 2 other chickens and people kept saying "That white one is a boy" -- no she isn't. She was a California White approaching POL and that big comb meant Leghorn blood.
Welcome to BYC.
I can't contribute much to this because I'm in a hot climate where "replace one wall with wire" is the appropriate solution for metal shed conversion, but here is the link to BYC's best article on cold-weather chickeneering. :)...