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Oak is a strong wood that provides good structural support, and the French Senate passed a bill in May 2019 requiring the new roof to hew to traditional construction. A man in a light colored robe and and head covering could be seen moving swiftly from left to right across the screen and then behind a column as the fire burned in the background. It may be possible, according to NOVA, to source new oak from Normandy. This roof structure was made from some 1,300 oak trees and was completely destroyed in the fire. Meanwhile, timber experts analyze the burnt timbers from "the forest" - the wooden framing that held up Notre Dame's lead roof. This necessitates a trip deep into the quarry tunnels, which were later turned into the famous catacombs. In one scene, Historical Monuments Research Laboratory geologist Lise Leroux uses microfossils in the stone from the vault ceiling of Notre Dame to trace the source of the rock in the medieval quarries beneath Paris. Flames and smoke are seen billowing from the roof at Notre-Dame Cathedral Apin Paris, France. Man watches the landmark Notre-Dame Cathedral burn, engulfed in flames, in central Paris on April 15, 2019. Collections Project ShowUs Creative Insights. Melding the modern and medievalīeyond the massive challenge of stabilizing the building, the team working to save Notre Dame must also search for clues about how the building was constructed in the first place. Select from premium Notre Dame Paris Fire of the highest quality. In the meantime, a tangle of scaffolding sways in the breeze above the cathedral, setting off motion alarms that warn workers to evacuate in case of a collapse. Architects had to custom-build timber supports to place within the buttresses to relieve the pressure and prevent a potential collapse. There was a chance that should the arches of the vault crumble, the supportive flying buttresses on the outside of the cathedral would push in on the walls, collapsing the entire structure. The state of the building after the ashes cooled is almost unfathomable in its precariousness.
#NOTRE DAME FIRE MAN ON ROOF WINDOWS#
Cleaning them is simplified, occasionally, by the fact that some windows haven't been washed in more than 100 years, so the lead clings to a thin film of dust instead of the glass itself. Even the cathedral's stained-glass windows, which were mostly spared the worst of the damage, are covered with a thin layer of lead dust. Workers must don protective gear and respirators to clean up the mess. The lead, in particular, makes repairs challenging. The new documentary reveals the damage the fire left behind: twisted scaffolding above the building from the renovation project that had been going on at the time, giant holes in the limestone vault ceiling, a mass of melted lead from the destroyed roof contaminating everything.