Arch steel buildings, the basics
) It is during this phase of the construction process that you will also frame door and window openings. Now is the time to put your insulation in place if you plan to insulate your prefabricated metal building. You will attach the metal sheeting for walls and rafters over the insulation. Finally, add any doors and windows, metal trim and any other finishing touches, and you have your finished prefabricated metal building! This is just a brief overview of the prefabricated metal building construction process. Your supplier should include detailed plans with your prefabricated metal building kit.