What do you call the sheets of metal/OSB that are put over windows of buildings to make them really uninhabitable for squatters and prevent people breaking the windows etc.? Or the act of doing that, rather than the bits of material. They aren't shutters, because they aren't intended to be openable. I'm sure it must be obvious, but I'm having word/brain blank.
What do you call the sheets of metal/OSB that are put over windows of buildings to make them really uninhabitable for squatters and prevent people breaking the windows etc.? Or the act of doing that, rather than the bits of material. They aren't shutters, because they aren't intended to be openable. I'm sure it must be obvious, but I'm having word/brain blank.