The historical roof cannot be preserved anymore. A newly-built roof made of concrete and steel has no more historical value than one made of wood. But the rest

The historical roof cannot be preserved anymore. A newly-built roof made of concrete and steel has no more historical value than one made of wood. But the rest of the cathedral does. But it was damaged by the fire and can be damaged again. To protect and preserve the historical fabric of the cathedral, its artwork and artifacts, we should avoid fires in the future. By building a non-historical roof made of concrete and steel rather than an equally non-historical roof made of wood.