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 a symbolic break 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.