a mounting support for mounting at least one photovoltaic module having a glass pane on a top side of an , in particular , uneven roof panel includes an elongated strip which can be rolled up and / or unrolled in a roll - up / unroll direction . at least two attachment means for the photovoltaic module are disposed on the strip with a modular dimension . the bottom side of the support is provided in the region of the attachment means with a protruding padding to compensate for uneven roof areas . the top side of the attachment means is provided with a supporting location or surface for edges of the photovoltaic module . the mounting support can be packaged as a roll and attached in a simple and effective manner on uneven and rough roof shingles .