Don’t do it. ICF has some value in limited contexts but it creates lots of complications that don’t get noticed until later. ICF is not airtight. It’s not water tight. Both of these factors can cause mold to build between the concrete and styrofoam inside the home. But you won’t know that. Standard formed concrete. With a full peel and stick water air barrier that continues from under the slab and around the footing, and up the wall. With R20 exterior insulation is what I recommend. Robust, easy to build, energy efficient and mold free.
What do you think about building with ICF's
Don’t do it.
ICF has some value in limited contexts but it creates lots of complications that don’t get noticed until later.
ICF is not airtight. It’s not water tight. Both of these factors can cause mold to build between the concrete and styrofoam inside the home. But you won’t know that.
Standard formed concrete. With a full peel and stick water air barrier that continues from under the slab and around the footing, and up the wall. With R20 exterior insulation is what I recommend.
Robust, easy to build, energy efficient and mold free.