> Most homes are built on top of cinderblock basements,
Block foundations have been replaced in new construction with poured concrete in general (in the midwest, at least). The solid walls are less prone to settling, cracking, and most importantly leaking.
> A lot of commercial work is done in a similar fashion but with aluminum studs instead of wood
Steel, actually. Fire safety is one aspect but it also saves weight and can be lower-cost.
Block foundations have been replaced in new construction with poured concrete in general (in the midwest, at least). The solid walls are less prone to settling, cracking, and most importantly leaking.
> A lot of commercial work is done in a similar fashion but with aluminum studs instead of wood
Steel, actually. Fire safety is one aspect but it also saves weight and can be lower-cost.