Spray foam plus fiberglass batts?
We're building 2x6 walls in Nebraska. My contractor has suggested applying 1" of spray foam all along the exterior walls and rim joists, then filling the cavity with fiberglass batts. I was a bit surprised, as it was my impression that the best assembly for me would be 2" of foamboard on the exterior to prevent thermal bridging, instead of spray foam.
I've been researching, but I'm having trouble drawing a clear conclusion between these options. Should I go with the spray foam or the exterior board? We're working with a limited budget but we're willing to invest here if it's worth it. Thanks for any thoughts.