corrugated iron - usually galvanized sheet iron or sheet steel shaped into straight parallel ridges and hollows

flashing - sheet metal shaped and attached to a roof for strength and weatherproofing

foil - a piece of thin and flexible sheet metal; "the photographic film was wrapped in foil"

flat solid, sheet - a flat artifact that is thin relative to its length and width

tin plate - thin sheet metal (iron or steel) coated with tin to prevent rusting; used especially for cans and pots