Are you putting the cart before the horse? While there is a lot of debate on the different type of SIPs and all are good, you might want to get some pricing including shipping before committing to a given technology. You can submit a request on this site for suppliers and you can find info at the SIPA organization.

Wire chases are going to be determined by the factory. Drywall isn't any different then normal, but make sure to use a number of screws to attach them as the nails will have a tendency to back out of the OSB. Remember that panels are normally 8', 9' , 10'.... Interior walls are designed to be 8' 1 1/8" to accomodate 1/2" of rock on the ceiling and then come down the wall. Thus you might need to adjust your interior walls or the exterior ones. If building on a slab, some factories require a bottom treated plate and then the plate that will go inside the panel. This means your walls will be 8' 1 1/2" so you might need to add to the interior walls with 3/8" OSB. If you have a basement then you might consider cutting the interior studs to make the walls exactly 8' to reduce the thermal bridging from extra top plate material. We normally ship 1 1/8" material for a second top plate which is the same width as the panels. When building on slab I rip the bottom plate. For instance, if building with 4.5" panels, I will rip 2x10s so that the bottom plate is at least 4.5".

We are about to build using Wyn-sulate in Athens, GA in January. It is not PU, but it is a wonderful system.

Im not stuck on the pu panels I would consider the eps panels.A timber framer told me if we were considering sips to go with the pu panels vs the eps. really what im looking for is a panel supplier located in the southeast hopefully within one hundred miles( if possible)also, Im looking for precut panels cut to floorplan with conduit or wiring chases installed.Do you know of any suppliers with a video available on wiring a sips home? We have an electrician friend who will wire our home but has never worked on a sips home.Any info is very much appreciated. regards, DJ

Marketman, we are located just outside of Athens,GA. What kind of system does Wyn-sulate offer? Can you provide a link to their website if possible.We too plan on starting in January 07. We have picked out house plan and talked with many subs. But after much reasearch we changed our minds from stick built to sips with an icf basement, so now we are kind of starting over so to speak after having quotes for stick framing. Now after doing some reasearch and planning I wouldnt even consider stick built again (ever), We will use the pex home run system for the plumbing. The biggest question we have unanswered is the electrical, I know using sips it will require some extra planning and since we have an electrician that will do all electrical with the help of friends for a fraction of the cost, I wanted to find a video of wiring a sips home since he is a little skeptical.thanks for the reply,
DJ

DJ,
   There is an article in The Learning Center that gives a pretty good overall wiring synopsis. You'll need a 2nd chase or a different method for low voltage wiring.

I believe R-control has a presence in your general area of NE Georgia. I know that they have also have a plant in Knoxville, TN area.