The blaze broke out late Thursday afternoon at the Monastère du Bon Pasteur, a 19th century former monastery, and quickly became a five-alarm fire requiring the intervention of 150 firefighters.
It proved difficult to tame because of the construction and materials used in the building. Authorities believe the fire began in the attic but had difficulty reaching the source.
“It was about 42 hours total of intervention by firefighters who worked non-stop,” Barbeau-Charlebois said.
An investigation into the cause of the fire is set to begin on Monday.
As of Saturday, 59 people were being taken care of by the Red Cross, Barbeau-Charlebois said. No one was injured in the blaze.
About 20 firefighters were still on site Saturday to ensure a new fire doesn’t start in the debris, and authorities inspected the building before allowing residents to enter.
Accompanied by police or firefighters, they were led inside in small groups to briefly collect their personal belongings like medication or important documents.
The chapel, located in the centre of the complex, is now a concert hall and the city calls it one of its most prestigious venues, known for exceptional acoustics in a historic and intimate atmosphere.
The venue housed a pair of unique instruments: a Fazioli concert grand piano and a 1772 Kirckman harpsichord, which were extracted or expected to be removed from the building on Saturday.
The condition of the instruments was not immediately known.