Hi Benwr,

I went with the foundation design as shown in my previous post. It's sort of a mix between floating slab and a club footing, since there is rebar that ties the foundation to the slab.

The bedrock was sloped, so one side has a foundation ~1' high, while the other is about 3.5' high. Fill was compacted inside. The plumbing is finishing up now, and then the slab will be poured. Let me know if you have questions.

lol no questions...

Did you scribe the icf forms directly to bedrock? or did you scribe a mudsill first and then the forms on top? my site varys in height and has a few depressions in the rock, I was told that icf forms require a mudsill and can not be cut to fit the contours of the rock. Any pictures of the construction would be great.

Thanks

Yup, ICRs were scribed directly to the rock, as shown in my schematic. The bedrock was cored every 32" and rebar was placed with epoxy, linking the rock with the foundation. Everyone that has seen this foundation has commented on how solid (and overbuilt) it is. It's not gonna budge...

Thanks for the pics, are you going to use any water proofing where the bedrock and icfs meet? keep us updated onn your progress

Just expanding foam to fill in the cracks. The plumbing rough-in is done, the 2" foam is down, and rebar and PEX tubes for radiant floor heating is in. The slab will be poured in a few days. I was suprised that there was no vapour barrier placed under the foam. My contractor says the foam is a vapour barrier itself, so I don't need anything else.

The photo's realy help. Keep posting as you progress, I'm starting to build in the spring and trying to learn as fast as I can.

kerno, did you need any information in particular? After the plumbing delaying the project for a very long time, the house is now being framed. I won't be doing much else to the foundation other than parging the ICF exterior, so I don't know what else to post on this thread that would be relevant to ICF foundation design.

Looks interesting, too bad you aren't doing the whole thing ICF.