The ornamental design for a solar roof mounting surfacetransition, as shown and described.
FIG. 1 is a front, left side, and bottom perspective view of a solar roof mounting surface transition;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken lines shown in the figures are for the purpose of illustrating portions of the solar roof mounting surface transition that form no part of the claimed design.