[lh7777]

I'd be very interested to hear more about your 2nd house experience as I'm currently considering building a similar-sized house using SIPs in rural Washington state. Ideally, I'd use a GC (if I can find a good one!) to get the building dried-in and then do the bulk of the finishing work myself. Do you have a recommendation for a SIP vendor?

[alpinemeadow]

Hi, this was back in 2009 and we used Insulspan, would imagine they are still around but you should check.

The good thing was that we used their structural calculations on the wall and the three beams that held the roof panels to have an Engineer stamp the plans at a reduced price (he simply checked that their calculations were OK). The RASTRA blocks to do the perimeter foundation was a great solution as we did the floor with OSB I beams, very fast and cheap!