Those Hoover buildings look much more like we use around here. I've now built 3 of them, so from experience, highly recommend...roof insulation directly under metal (even if you are going to insulate the building completely later). If you have any humidity at all, moisture will condense on the underside. Learned this the hard way. 2nd, put plastic under your slab so the slab doesn't sweat. 3rd, and this may be a Southern thing, it is definitely a pet peeve of mine, if he uses the bottom girt (usually a pressure treated 2X6 as the slab form board, the concrete must extend under the 2X6 out about 6 inches to keep ants primarily, but all little critters out of your building. I also put 2 large 1/2" galvanized j - bolts in the slab (between the 10' post sections) to tighten that lower girt and metal siding to the slab. You don't have to worry about that last one if you build the building "ON TOP" of the slab, like a conventional home structure. My 30X50 first shop didn't have this, I was a rookie, and after a big rain, I have huge ant mounds migrating up into the building. It's going to cost me to rectify after the fact.


Allen
Yeah, well, that's just like, you know , your opinion, man - The Dude

1948 Chevy 3600 - goal Original restoration, Current Stage 1 - Disassembly and getting body in primer
1954 GMC 3100 goal Hot Rod, Current Stage 1 - Get body in primer
1931 Ford Model A 5 window Coupe - Old Skool Hot Rod
1945 Ford 2N Tractor - Runs great
1964 Ford 2000 Tractor - Use it every week
1974 Stingray Corvette