After many years in and around construction, last year I had my first ICF experience, I am a believer.
Materials Cost is about the same as single use plywood forms, the walls go up very quickly and easily, rebar, conduit and plumbing all can go inside the walls, draft proof, insect proof pretty much fireproof (depending on the styrofoam used). No form stripping and when it is done it's insulated.
All my footings are on high density foam, with foam on both sides as well.
My floor slab will be insulated and will have hydronic heating. Have made extensive use of Laminated Ferro Cement walls and also have used quite a bit of styrofoam ground up and mixed with concrete.
My house is a bit unusual as we started out with a problem site, it is taking a long time to build but its just the two of us rather ancient specimens and the occasional helper.
Good luck with your house.
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