galvanized sheet iron; corrugated iron sheet
Refers to thin iron or steel sheets coated with zinc to prevent rust; commonly used for roofing, siding, and simple structures.
See also: トタン
We put galvanized iron sheets on the roof.
Walls made of galvanized iron sheets get very hot in summer.
トタン is a borrowing of Portuguese tutanaga, originally denoting a zinc alloy and later galvanized sheet iron; 板 means “sheet” or “plate.”