[notahacker]

Difference is that the prefabricated construction techniques actually do tackle the entire build, and allow time consuming bits like foundations, roofs, plumbing/wiring and kitchen/bathroom fitting to be done in parallel (it just doesn't scale particularly well to individual homes built on lots where on-site time isn't a major issue; city centre hotels are a different story)

This just tackles the low rise exterior wall bit - usually a fairly quick and uncomplicated bit of the build with a lot of options - and more specifically replaces the quick and basic technique of pouring concrete between wooden boards with highly sophisticated machinery and tight tolerances. The one thing it does do very well is permit complex shapes that basic poured concrete casting or off-the-shelf cladding can't achieve - but sculpted forms in concrete is a pretty small niche in residential construction, and much more of a high end architect request than a baseline for building homes efficiently

[sgerenser]

Yeah, this technique definitely has a techno-cool factor, but it just isn’t replacing particularly difficult or time consuming portions of a build. It appears that if you want 2 stories the second story is stick-framed (as are the interior walls) so you can’t even avoid hiring framers entirely.

Having a new house built now and of the roughly 7 month schedule, framing, sheathing and wrapping with WRB is less than 2 weeks.