We are going to insulate our porch and combine it with the kitchen. The flooring in the porch is currently concrete, and I am wondering if it will be OK leaving the floor uninsulated - just underlayment and hardwood is what we plan to do for a finish. I live in Minnesota so it does get cold... Do you think we need to insulate the floor? We are planning to also instal a woodburning stove in that room... if that helps. Thanks!