How do you air seal a thermally-broken floating slab?

Looking at https://www.greenbuildingadvisor.com/article/183793 (ignoring the optional R-15 insulation, which I don’t have room for), I can’t figure out where the air barrier is. Obviously the concrete itself is an air… Looking at https://www.greenbuildingadvisor.com/article/183793 (ignoring the optional R-15 insulation, which I don’t have room for), I can’t figure out where the air barrier is. Obviously the concrete itself is an air…Read MoreGreenBuildingAdvisor