Is it necessary to go beyond the standard icf r23?
Wasn’t really sure where to post this I had my wall assembly all figured out amd was ready to go only to find out lumber prices were way way higher than even a few short months ago. So I have come full circle and I’m leaning towards an icf house that I would do everything myself as well.
Im just wondering if it’s worth going to the r35 blocks vs the r23 it’s double the cost. Almost seems like I’d be better off adding foam myself. The wall will perform pretty well it doesn’t leak air so my feeling is this wall will perform well in zone 6 where I live. Guess I’m just looking for opinions Positives and negatives to an icf build.
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