corrugated iron; corrugated sheet metal; galvanized sheet iron
Common building material for roofs and walls; often used in the phrase トタン屋根 (corrugated iron roof).
from Portuguese tutanaga
We covered the roof with corrugated iron to stop the leaks.
The roof of the old house is made of corrugated iron.
The corrugated iron was blown away by the typhoon.
The corrugated iron on the old warehouse had completely rusted.
A flat piece of トタン is counted with 枚, the counter for thin, flat sheets.
From Portuguese 'tutanaga', originally referring to zinc or a zinc alloy, later applied to galvanized corrugated iron in Japanese.