How to rebuild a gothic cathedral: The future of Notre Dame
Before distinguishing between the salvageable from the unrecoverable, immediate steps will need to be taken to prevent further damage, according to architectural historian and broadcaster, Jonathan Foyle.
High temperatures can change the chemical nature of limestone, Foyle said, with the resulting calcification potentially weakening the structure. And pouring cold water onto hot stone -- as will have inevitably happened as firefighters tackled the blaze -- can cause thermal shocks that may have cracked parts of the cathedral's stonework.French authorities will then, ultimately, need to take a series of design decisions about how best to rebuild.
A worker inspects the hull section of The Cutty Sark on October 11, 2007. The original conservation project was interrupted because of the damage caused by a fire on March 21, 2007.Maria Swärd/Moment Open/Getty Images
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