Im getting a 10' x 15' shed to build a cage for two waters. I've been thinking on how to do this & came up with many questions but most of them I can figure out myself. I do have a few questions that I think would best be answered here. The first is I cant figure out a way to repel heat from the shed so I can keep a pretty constant temp. Second, I had an idea of making a doggie door to make a small outdoor enclosure to put a kiddie pool. It sounds good in my head because it will give them more dirt space inside the shed but Im not sure if a doggie door will hold moisture. Any advice is greatly appreciated.