 In terms of the insulation, spray foam is a great choice. I did that to my old house and never looked back. Our village just went way down. We, in our case, sprayed the underside of the roof rafters, not the ceiling level of the second floor. And therefore, we created essentially an attic that's unvented because it doesn't have to be vented. When it's spray foam insulation, you don't need to use traditional ventilation. And so my attic, which we use a lot for storage, is pretty much the same temperature. It's like an ambient temperature all day.