The ornamental design for a pitched roofserviceplatform, as shown and described.
FIG. 1 is a front elevation view of a pitched roof service platform, showing our new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right elevation view thereof; and,
FIG. 5 is a left elevation view thereof.
The broken lines illustrate portions of a pitched roof environment which form no part of the claimed design.
The pitched roof service platform is shown with symbolic breaks in its length. The appearance of any portion of the pitched roof service platform between the break lines forms no part of the claimed design.