FIG. 1 is a top, front, left side perspective view of a vehicle roof according to my design;
FIG. 2 is a top, front, right side perspective view thereof;
FIG. 3 is a top, rear, right side perspective view thereof;
FIG. 4 is a top, rear, left side view thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a rear elevation view thereof;
FIG. 7 is a right side elevation view thereof;
FIG. 8 is a left side elevation view thereof;
FIG. 9 is a top plan view thereof;
FIG. 10 is a bottom plan view thereof;
FIG. 11 is a top, front, left side perspective view of a front portion of the vehicle roof according to my design;
FIG. 12 is a top, front, right side perspective view thereof;
FIG. 13 is a top, rear, right side perspective view thereof;
FIG. 14 is a top, rear, left side perspective view thereof;
FIG. 15 is a front elevation view thereof;
FIG. 16 is a rear elevation view thereof;
FIG. 17 is a right side elevation view thereof;
FIG. 18 is a left side elevation view thereof;
FIG. 19 is a top plan view thereof;
FIG. 20 is a bottom plan view thereof;
FIG. 21 is a top, front, left side perspective view of a middle portion of the vehicle roof according to my design;
FIG. 22 is a top, front, right side perspective view thereof;
FIG. 23 is a top, rear, right side perspective view thereof;
FIG. 24 is a top, rear, left side perspective view thereof;
FIG. 25 is a front elevation view thereof;
FIG. 26 is a rear elevation view thereof;
FIG. 27 is a right side elevation view thereof;
FIG. 28 is a left side elevation view thereof;
FIG. 29 is a top plan view thereof;
FIG. 30 is a bottom plan view thereof;
FIG. 31 is a top, front, left side perspective view of a rear portion of the vehicle roof according to my design;
FIG. 32 is a top, front, right side perspective view thereof;
FIG. 33 is a top, rear, right side perspective view thereof;
FIG. 34 is a top, rear, left side perspective view thereof;
FIG. 35 is a front elevation view thereof;
FIG. 36 is a rear elevation view thereof;
FIG. 37 is a right side elevation view thereof;
FIG. 38 is a left side elevation view thereof;
FIG. 39 is a top plan view thereof; and,
FIG. 40 is a bottom plan view thereof.
The dashed broken lines illustrate portions of the article and form no part of the claimed design.