noun
corrugated iron sheet
Refers to a wavy iron sheet used for roofing or walls. The name comes from the resemblance to the texture of a sea cucumber (海鼠).
倉庫の屋根は海鼠板で葺いてある。
The warehouse roof is covered with corrugated iron sheets.
海鼠板は軽くて丈夫なので、仮設の建物によく使われる。
Corrugated iron sheets are light and durable, so they are often used for temporary buildings.
トタン板 is a galvanized iron sheet, often flat or slightly corrugated, while 海鼠板 specifically refers to the deeply wavy corrugated type.
Compound of 海鼠 (namako, 'sea cucumber') and 板 (ita, 'board'), from the resemblance of the wavy pattern to the texture of a sea cucumber.