Good thoughts there. Thanks. I would like to make the enclosure as airtight as possible for 2 reasons. One to control odors leaving the enclosure, because I'll have others in there with me and can't control how well they wash up beforehand. And second because it gets dang cold up here in the northern midwest and I want my kids to be comfortable. Any other thoughts from you guys on windows and or roof construction? Anyone have any photos of archery tower blinds?