An engineered fill and free-draining granular base layer supports a concrete slab-on-grade bearing on a foundation wall. A vapor barrier is installed below the slab as required by the soils report. The finish grade slopes away from the structure with a minimum six-inch clearance below the top of the foundation wall.
FINISH GRADE, SLOPE AWAY FROM STRUCTURE BACKFILL VAPOR BARRIER AS REQUIRED BY SOILS REPORT FREE DRAINING GRANULAR BASE WIDTH = DEPTH 6" MIN. — 3 A — -I -ll l—111 2 A I ■ A - kZ <1 .A A A A - VA - . A IF IIIF 1 '
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