1) Scraped off excess peeling paint:
2) With a handy oscillating tool, cut a downward-sloping groove just above the peeling zone:
3) From some old sheet metal fashioned kick-plates the top of which would fit into the groove and the entirety of which would cover the peeled zone:
4) Using some roofing screws left over from another project, attached the new kick plates:
Now we can run a bead of clear caulk along the top to seal the groove and then touch up the remaining, but minor, peeling zones. A bit of weathering and we will have that sought-after "patina"!