What is this?

I need help to identify what panel flashing and edge system this is. I have not seen an edge bent over the top of the panel end. Nor do I know what this flashing is. I had originally thought it might be a vent system off ridge. However there is no vent in this flashing nor a Z flashing under the downslope side. I am now thinking it might be flashing used to just extend the panels. There use to be an open porch in these sections but were later enclosed. Any help you can provide would be appreciated.