The past and present of an unfairly ignored building material. 

Down the deep lanes that lead to Dartmoor’s granite uplands, in England's West Country, a weather-beaten gap has grown in the hedge marking a Saxon field boundary. One day this winter a battered sheet of corrugated iron appeared, lodged in the gap as if it had blown in. In reality, the middle-aged brothers who farm nearby are probably responsible: their sheep have a habit of busting into others’ fields. In the chilling wind the sheet quivers, like a living thing...

The Economist: The rise and rise of corrugated iron