Can I use corrugated metal roofing panels as soffits and paint them?
How should I prep the sheets, and what type of paint should I use?


power wash &amp; scrub moss etc. YES
light sanding to scruff the surface YES
maybe muratic acid, maybe primer? NO to both. Neither is necessary assuming those panels already have paint on them, which looks to be true. If your &quot;light&quot; sanding creates any bare metal areas, spot prime those.
paint with exterior acrylic YES
...maybe interior latex would work too? NO why would you use interior paint for an exterior application?
use a roller? or brush? YES either/both, or spray