Just a thought, if you want to dress so it looks like one coop I would think about some plastic roof panels. They come in various colors and are very light weight, could easily make the two coops "look like one" just by laying them over the two roofs, also nice for covering runs, just make SURE they don't sag else the rain water collects in them.
I have 3 panels over part of their pen to provide cover in part of their run, these panels were super easy to move and attach, they also come in clear and smoke for colder climates (pic below shows extra supports because it WAS sagging under heavy rain, I have since fixed that). I paid about $16 each for 26" x 8 foot panels.

http://www.lowes.com/pd_72765-1115-...=?Ntt=polycarbonate+roof+panel+red&facetInfo=
I have 3 panels over part of their pen to provide cover in part of their run, these panels were super easy to move and attach, they also come in clear and smoke for colder climates (pic below shows extra supports because it WAS sagging under heavy rain, I have since fixed that). I paid about $16 each for 26" x 8 foot panels.
http://www.lowes.com/pd_72765-1115-...=?Ntt=polycarbonate+roof+panel+red&facetInfo=
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