Presidential cultural heritage envoy Stephane Bern told broadcaster France-Info on Wednesday that 880 million euros ($995 million) has been raised so far. The main organ, which had close to 8,000 pipes, has also suffered damage.
Sprinkler systems may not be suitable because they tend to be set off by heat, and in cathedrals the ceiling would be so high up that, by the time the heat triggered the sprinklers, a fire would be out of control.
"I believe very deeply that it is up to us to transform this catastrophe into a moment to become - while reflecting deeply on what we have been, and what we should be - better than what we are", the president said. "And we can do it".
The Winnipeg fire came to mind as soon as he saw the scaffolding around the spire at Notre Dame, he said. "Today's dying, we trust, will bring rising", Dolan said outside St. Patrick's Cathedral in Manhattan. "We got a cathedral back and we're glad to have it", he said.
Images from inside the cathedral Tuesday showed its vast walls standing proud, with statues still in place and a gleaming golden cross above the altar.
He said the building had been saved within a critical time window of 15-30 minutes by a team of 400 firefighters who worked flat out throughout the night.
The spire was completely destroyed in the blaze that tore through the 850-year-old Gothic building's roof.
"The end of the fire doesn't mean the edifice is totally saved".
Sadness which Mulaire now sees Parisians feeling in the aftermath of this latest blaze, a blaze which has many cherishing memories of seeing the Notre Dame Cathedral. Feydeau told France Info radio that the cathedral's roof can not be rebuilt exactly as it was before the fire because "we don't, at the moment, have trees on our territory of the size that were cut in the 13th century".
Germany and Poland were among the countries that offered assistance.
The Archbishop of Paris Michel Aupetit told RMC radio, "Notre-Dame was destroyed but the soul of France was not".
But experts had warned a full restoration will take many years.
One person said: "I can see it pretty clear, gown and all".
Likewise, the centuries-old timber within the building's internal structure, much of which was crafted into an intricate support structure by medieval artisans, may be irreplaceable. However, thanks to the efforts of hundreds of firefighters, the facade and two towers remain. It is purported to be a relic of the crown placed on the head of Jesus Christ at his crucifixion, obtained and brought to Paris by King Louis IX in the 13th century.