A 'Matter' Matter

Beneath the rear window negligently accorded my end of the shared office room, a corrugated shed roof for seasons has been taking a rain-pounding. Here, that means days on end of drizzle, puddling, two-minutes' barrage, the Spring hailpellet, overnights, thunderstorms hitting as summer surprises. Too: snow

Inert in sun.

Which will be the last part? The last part identifiable as metal?