The ornamental design for front panel for a facing construction, as shown and described.
FIG. 1 a front, top, right perspective view of the front panel for a facing construction with three hollow spaces;
FIG. 2 is a front, top, right perspective view of 3 assembled front for a facing construction panel, two of the panels are shown in broken lines for illustrative purposes only and form no part of the claimed design; and,
FIG. 3 is an alternative embodiment of a front, top, right perspective view of a front panel for a facing construction with seven hollow spaces.