I know from my experience some chickens prefer to sleep out of the coop on a roost in the hot and humid months depending on where you are located I have 8 hens and a rooster that prefer to do this instead of go into the coop at night
It can be done very sparingly maybe for a week or 2 but you have to be very careful because if he has already started eating hay, pellets, or free range forage it can throw off his rumen and make him sick and cause gut health issues the kids are weened at about 8 weeks for this purpose
I love the build quality and mobility option to allow for the ladies to be mov s to fresh grass every so often and keep them safe when I can’t be right there with them also you cannot beat the 25 YEAR!!!!!! Warranty way to stand behind your product.