I really like the use of steel as a building material. I love it for roofs -- I can just imagine that the rain sounds lovely pouring down on a nice steel roof , and it's a cool roofing option, too. I also love that steel is a green building material. Since we always try to do our part for the environment, I am planning for our next barn to be made of steel.
Now that our piglets are growing up, we are going to need a new building to house them in. I've been looking into green building information since good, energy-star rated insulation will be important to keep them warm during the winter, and of course, sustainable building design is important to me. I want whatever we buy to last for a long time and be flexible enough that we can use it for other animals, storage, or maybe even recycle or resell it when we no longer need it anymore. Steel lasts and stays in good condition better than any other material I can think of!
We are getting ready to move the piggies out of their mom's pen in a couple of weeks, so we really need to research our options and make a decision now.