Well, after the tornado mostly destroyed our little coop/run this week, I'm about to head out and get some lumber to build another. I've decided on a raised, 4x8 coop to cut down on the cuts I'll have to make. But I have a couple questions, with more to come I'm sure.... 1) I'm going to angle the roof from long side to long side...so 4 feet of slope. Will a 6 inch difference be enough between high and low side? I plan on covering the roof with those wavy fiberglass sheets from lowes. 2) What is the best way to attach those sheets to the plywood roof? 3) For corners that are not air tight, is there a chicken safe caulk like product? I'm relatively sure they'd ignore it anyway, but thought I'd check with the pros! There will be more questions I'm sure!