I insulated the cinder blocks of my hog-shed, now chicken coop with foam panels. Thanks to the warnings here about chicken investigation I KNEW I had to cover them with something. But the budget for this build was tight, ultra tight. And I stared at foam panels for a long while before it hit me. Landscape fabric. Cheap, durable, and I had a ton of it on hand from the deck build. I had a good stapler and VOILA, all the foam is covered with something until I can get the covering that I do want, when it fits the budget. The exterior siding and door is all old barnwood from a neighbor. He also gave us a ton of barn and spare lumber he has to get rid of. My camera is still dead but I'll post when the sucker gets repaired. I've got the turkey coop skeleton up. And they're still in eggs that aren't here yet. The goat shed skeleton is started... See why the first chicken coop had to be cheap? The second chicken coop has some lumber sitting in a pile. The chicken tractors are just two sets of wheels and some pvc. I'm booked through 2010.