I recently built a new garage/shop. Being in northern Illinois, it occasionally gets cold here in the winter, so I'm going to insulate it. There is a second floor with an area that if I built a 3 foot knee wall would be about 15'x19'. Currently, it's just storage space, but I could potentially see putting a desk up there in the future. I've told my wife that when my little girls get to be teenagers, I'm putting a fridge, TV, and computer out there to hideout from the craziness. So, this space isn't going to be heated right now, but could be in the future. I'm trying to decide whether to just insulate between the floor joists or to skip that and insulate the rafters. If it makes any difference, the floor joists are
2x12. I'm insulating the walls, of course.todd