A fire that swept through a 19th-century former monastery in downtown Montreal last week gutted the fourth-floor space of Les Impatients and has left participants in shock.

The blaze broke out late Thursday afternoon at the Monastére du Bon-Pasteur building and quickly became a five-alarm fire requiring the intervention of 150 firefighters. It took until Saturday to bring the fire under control.

The mission of Les Impatients, established in 1992, is to help people with mental health problems through the vehicle of artistic expression. The Monastère du Bon-Pasteur building, a multi-purpose building on Sherbrooke St. E., had been home to Les Impatients since 1999.

“A lot of people are in shock,” Frédéric Palardy said of participants. “It’s almost like a home for them. Some come twice a week.”

They participate in art workshops and, as well, some are in music and dance workshops and a choir — all organized by Les Impatients.

“The main thing is that everyone is safe and no one was hurt,” Palardy said. “My thoughts are for our neighbours.”

The multi-purpose building housed a seniors’ residence and a housing co-operative, Heritage Montreal, a daycare centre, condos and a chapel that served as a concert hall.

“I know a lot of people in the residence and the co-op,” he said.

But the fire “is terrible for us, too.”

Les Impatients was on the top floor and among the building’s most severely affected by the blaze, said Palardy. Although it is not yet known for sure, the fire is believed to have started in the roof.

With about 30,000 works, Les Impatients has what is believed to be North America’s largest collection of outsider art, Palardy said. The term describes art that has a naïve quality and was often produced by people without formal training as artists.

Les Impatients had insurance, but it was primarily for theft, Palardy said.

“We have to start from scratch,” he said, adding that the organization is working on an appeal.

Meanwhile, Palardy said the organization has received countless emails and messages of support, including a text Sunday from deputy health minister Lionel Carmant and messages from representatives of the City of Montreal’s culture department.

An interim location for Les Impatients administrative offices has been found, Palardy said Sunday, but the activities of the downtown section, which were held in the former monastery building, are suspended for now. That location normally serves about 130 people five days and three evenings every week through its workshops and the organization is already at work to find a new location, Palardy said.

The former monastery location is the largest and most well-established of Les Impatients’ 25 locations elsewhere in Montreal and across Quebec which, together, serve more than 900 people. The other locations will continue to function, he said.

The Parle-moi d’Amour event, the biggest fundraiser of the year for Les Impatients, is set for September. Sadly, Palardy said, some of the works that were to be included were lost in the fire.