I lost my stick built (2"x 6"s and plywood) barn last May to fire. It was build in 1986 and was terribly eaten by termites, which boosted the flammability with all that swiss-cheesing of the material. In 25 minutes, (my guess) it was fully engulfed and I was looking at the underside backlit by the flames of a mushroom cloud. Those Monitor Barns are perfect iron-forging chimneys once they get going. No animals or humans hurt.. just tools, cars and worldly possessions destroyed... starting from scratch.
The original footings are 43' wide x 40' deep with 12 1/2' extensions (shed overhangs for outside stalls) on either side. I'd rather not incur the expense of jack-hammering up and removing all that concrete, so want to re-use if I can. Spalling is limited to the slab and is fairly easy to repair. I had to scrape the sill plates (treated lumber) off the footings, so that tells me that they got no hotter than 451F. Likely are in good shape. A Structural Engineer will make the call as required by County.
I was looking at metal buildings, but don't care for the look, noise inside, and the heat cycling. I had a decent wood shop and metal shop (inherited my Machinist Dads Mill and Lathe), so humidity swings from un-insulated buildings are bad news because of the condensate. Long and short is I want wood again, but don't want to worry about fire again. I ran across straw bale construction and am interested in the fire resistance, and insulating qualities. It seems like you basically build a post and beam structure, but don't side it. A special footing is needed to get the bales up away from moisture on the surface, and to allow draining if they ever get wet. The bales are stacked brick-style, and spiked together with re-bar. A metal lath/welded wire is stapled on the inside and outside surfaces, then you apply some type of plaster, gunite, adobe etc. As long as the roofing system gives you good overhangs, these are supposed to last forever. Rodent intrusion is supposed to be prevented by the plaster.
Anybody try this?