This is an interesting thread. I have done quite a few projects with a fairly standard SIP approach. I increasingly feel the limitations of this type of approach, and really want to be able to spend some R&D time on alternatives. I am particularly interested in a "Chip and Slip" type non load bearing wall. I just need to find the time (and a competent plasterer).

For the time being, I am trying to increase the workability of the Sip type enclosure with cold roofs, rainscreens, EPDM gasketing, etc. It's hard to escape the feeling though, that the sip enclosure may be overly complicated to properly detail.