Definitions for "Damp Proof Course"
A horizontal layer of impervious material laid in a wall to exclude water usually at 6" (15 cm) above ground level. A damp proof course subsequently installed in an older property will usually take the form of a series of chemical injections into the brickwork.
a horizontal layer of impervious material incorporated into the walls near ground level so as to prevent ground moisture from rising into the brickwork
a strip of impervious material the same width as a brickwork or blockwork wall, to keep out moisture