There's a community up this way called "Sterling" that was a joint venture between GE and United States Steel, built in the early-mid 1960s. This planned community was meant to showcase new building technologies that would result in affordable housing. Of course, the proximity to a huge international airport flight path affected the low price tags as well.
Anyway, just about anything that could be made out of steel in these houses was just that. Steel studs, trusses, doors, siding, pretty much everything but the sheetrock. They ran a #6 aluminum wire from the panel to a lug that was screwed into the siding with a #12 sheet metal screw. These all-electric houses featured GE brand 150 amp split bus panels, plus the furnaces, water heaters and appliances. There were bonding jumpers all over these houses to tie significant parts of the structure together. I'll never understand how this actually saved any money with all of that labor.
Today, these homes are maintenance nightmares since they didn't plan on the temperature extremes between inside and out. Moisture inside the walls eventually rusted the studs and caused major mold issues.
Sorry for the side track....
