Interesting, but trying to make a house out of lots of bits of 2.4x1.2m (4’x8’) sheet is painful, especially if you’re trying to span any kind of distance and y

Interesting, but trying to make a house out of lots of bits of 2.4x1.2m (4’x8’) sheet is painful, especially if you’re trying to span any kind of distance and you still need to seal the joints between panels carefully, probably with tape, to acheive good airtightness. The next logical step is to make the sheets of ply much bigger, then machine them. The good news is that this has already been done, it’s called cross laminated timber the panels are made as large as can be shipped to site and cnc machined on a highly automated production line. The kit is then assembled on site with a crane to very tight tolerances. A 200m2 home will take a few days to erect a structure which can be immediately fitted with windows, tested for airtightness then insulated. The technology was pioneered in Austria about 30 years ago and is becoming more and more popular in Europe.