We're about to move and are planning on having chickens at our new house. There is already a shed on the property which we are planning to convert to a chicken coop. The shed has linolium floors and electricity already, and as far as I remember it has windows also, but we'll probably be needing to add some insulation and ventilation. Also, there is already a fenced section around the shed, but the fences are only around 4' high. I was talking to a friend who has chickens, and she said we should have a completely enclosed run (roof, etc. of hardware cloth/chicken wire) unless we wanted our chickens to wander off and not come back. So, what is the best way do add insulation and ventilation to the shed and a roof to the run? The fence would need to be higher to allow us to walk inside it, and we aren't really building-savvy. The shed is probably around 10' x 12' (maybe larger) and will be housing 20 hens: 5 Austerlorps, 5 Andalusians, 5 Ameraucanas, and 5 Silkies. How much roofed run area should we have, and how do you get the "roof" on?