Whats is even more ridiculous is what they can get away with stick built houses ..... they only have one sheet of plywood on the outside that is only "clip nailed" Where a SIPS house has two sheets of Plywood that are glued and screwed to the sill plate.
The average SIPS house has around 20,000 screws in it and 8 cases of contractor sized sealant/glue/caulk....not including the big long ones we attach the panels to the timbers with....
Now add a well built timber frame inside of that.....
Compare that to your average metro stick built house....I definetly would rather be in a timber frame that I built...LOL