 to the home and consider that. And of course, the insulation choice, spray foam, a great one. By the way, though, if you are going to go with metal, it's recommended that you use closed cell spray foam insulation because it's more waterproof. It has a vapor barrier built into it. Not all open cell spray foam gives you a vapor barrier protection the same way closed cell would. So if it's metal, I would definitely go closed cell.