Polyvinyl chloride conduits pass beneath building footings and through the vapor barrier at the underground entrance. The layout requires a minimum forty-inch depth under footings and a forty-eight-inch minimum bend radius for the conduit sweeps. Conduits maintain three-inch spacing between ducts in plan view. A proper seal is installed around the conduits at the vapor barrier penetration, terminating with polyvinyl chloride bell ends above ground level.
SECTION A-A 48" MINIMUM RADIUS PVC CONDUIT SEAL AROUND CONDUITS AT PENETRATION THROUGH VAPOR BARRIER PVC BELL END GROUND LEVEL 3" 3" 40" MIN. UNDER FOOTINGS PLAN VIEW A A 3" BETWEEN DUCTS 3" 1. REFER TO SITE PLANS AND FLOOR PLANS FOR CONDUIT
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