FIG. 1 is a top plan view of an underlay sheet according to an embodiment of the present invention.
FIG. 2 is a bottom plan view of the underlay sheet of FIG. 1.
FIG. 3 is a side view of the underlay sheet of FIG. 1.
FIG. 4 is an edge view of the underlay sheet of FIG. 1; and,
FIG. 5 is an isometric view showing the underside of the underlay sheet of FIG. 1.
The broken lines indicate that the claimed design has indeterminate length and width, it being understood that the depicted pattern extends throughout the design. The broken lines form no part of the claimed design.