Started by removing old flagstone and excavating 12" of fill/debris. Then laid contractor grade geotextile fabric under entire area where cement would go. Backfilled area with 6" of granular M gravel in 2 lifts, compacting between lifts. Laid out 10 mm rebar every 12" on center. Installed expansion joint on the house foundation and set forms around the rest of the pad. Then poured and finished 6" of concrete with a broom finish for what will eventually be an outdoor thermal spa.
