France's government last week presented a bill aimed at speeding up the reconstruction that would allow workers to avoid some ordinary renovation procedures.
Mr Macron has set a goal of rebuilding the cathedral in just five years, which some experts consider simply impossible to achieve.
In a column in French newspaper Le Figaro, a group of 1,100 experts urged Mr Macron to "let historians and experts have the time for diagnosis before deciding on the future of the monument".
They called for a well-considered, thoughtful and ethical approach and warned against a "political agenda" based on speed.
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