In a few parts of my SIP plan, electrical wiring might best be done by having EMT conduit in the slab, with stub-ups in strategic places under SIP walls. Was wanting to know if this is done, and if so, techniques for best doing.

Posted By Stryker on 28 Feb 2014 01:39 PM
In a few parts of my SIP plan, electrical wiring might best be done by having EMT conduit in the slab, with stub-ups in strategic places under SIP walls. Was wanting to know if this is done, and if so, techniques for best doing.

Wouldn't recommend attempting that it would need to be dead on exact and not very likely to turn out well,
you would be better of to bring into a nearby intersecting interior partition and then feed into SIP

I did three runs of conduit up through my slab. One took the main from the outside up into an interior wall which was where I installed my breaker panel. Then I ran conduit into my utility room (again up into an interior wall) I ran the wires for my electric boiler and my water heater in this conduit. The third run came up under my kitchen cabinets and provided power for my Stove and dishwasher. All of these runs took very careful planning but worked out well. I considered one more run to come up under a SIP wall, in a hard area to access but I determined that to be problematic. I agree with Chris Kavala in this regard. It is an option but not a good one.

The use of conduit in slab construction is common and perfectly acceptable. With an experienced /trained SIP installation crew, site boring vertical electrical chases is commonplace. In fact, avoiding factory installed chases (That should be plugged at post rough-in) can simplify your project. I avoid as many factory chases as possible. Specify a counter top horizontal in the kitchen and vertical at 6" off the latch side of your exterior doors. This assumes you're ordering a factory fabricated package. If you're looking at a blank package, I typically order only a lower horizontal chase. The technique of site drilling, hot-balling, hole saw access, and proper labeling make SIP electrical a very simple evolution.
When accessing remote walls in slab construction, it's very easy to stub the conduit up to a point slightly above the bottom plate and then bore a 1-1/2" hole up to the plug height before setting that specific panel. Once at this location, you can wire directly into the box or continue horizontally inside of a factory or site bored chase.
My recommendation is to proceed as you have described as it works fine. (Regardless of the type of panels you are using)

Al Cobb
Director; SIPschool