I have mine in the attic area above the garage. When I build the house 7 years ago I had it insulated, and heating and cooling install. At one time it was going to be a bunk house or media room. LOL As the kids move out we ended up with three empty bedrooms, so it became the train room. The room was unfinished except for being insulated and heat/ air system. The insulation installer put the foam channels going from the eve vents to the attic space above the room.
Since the space was like a "a" frame I put up knee walls at 4 foot on the sides and put doors into the space to store boxes.
