Will there be an enclosure in each or just a roof?
My oldest coop has a tin roof over half of it's adjacent run. Guttering or some other method of shedding water to another area is important to have. My tin roof slopes slightly to the edge of the coop roof which has guttering. Then the water from the gutter is piped to run into the first 2 stages of my compost bins. If we get a lot of rain I can turn the pipe so it shed down hill from the compost.
My oldest coop has a tin roof over half of it's adjacent run. Guttering or some other method of shedding water to another area is important to have. My tin roof slopes slightly to the edge of the coop roof which has guttering. Then the water from the gutter is piped to run into the first 2 stages of my compost bins. If we get a lot of rain I can turn the pipe so it shed down hill from the compost.