THE CHICK SHELL-A
What I would do differently - make it smaller so less plywood needed - 4 inches narrower would have meant one sheet instead of two. Would have used the rolled roofing over whole thing instead of just over nest box area. However, hubby says the metal roof reflects heat and that's why it stays so cool.
What I may do soon - Cut the nest box lid in two, vertically down the middle, and move the hinges to the sides making a set of double doors so I can open one side at a time if I want. It's a little heavier than I would like right now cause it's so big. We'll see when it's egg gathering time how it works the way it is now.