The DPC in the inner wall is usually below floor level, (under a suspended timber floor structure), or, with a solid concrete floor, it is usually found immediately above the floor slab so that it can be linked to the DPM under the floor slab. This enables installation of skirting boards above floor level without fear of puncturing it.
The DPC in the inner wall is typically positioned below floor level (under a suspended timber floor structure), or, if there's a solid concrete floor, it's usually found directly above the floor slab to connect with the DPM beneath the floor slab. This allows for skirting boards to be installed above floor level without risk of puncturing it.