Spontaneous combustion of insulation blamed in Stella's fire

Fire investigators say a blaze above Stella's on SherbrookStreet Thursday nightwas caused by spontaneous combustion of spray foam insulation being installed in the attic.

A fire official said Friday morning that damage is estimated at $700,000.

Emergency crews were called to the building that houses the popular restaurant, which was quickly evacuated, around 8 p.m. Thursday.

The street was blocked to traffic from Westminster Avenue to Broadway andtaped off for pedestrians as well.

No one was injured in the fire, police said.

"No one was affected other than being able to finish their pasta and their wine," saidMeganVerrier, thegeneral manager of Stella's onSherbrook.

The location onSherbrookhas26 front-of-house staff, fivemanagers and 14 back-of-house employees Verrier said, adding35 customers were cleared out the night of the fire.

Verrier saidthe company has already noticedmore customers than usual atother locations. That increase in traffic hasallowed Verrier to find hours for her staffat other locations, she said.

Stella's appreciates the support it's been receivingfrom the community, Verrier said.

"The community has been amazing.We look forward to just reopening ... and treating everyone the way they've treated us with warmth, comfort and happiness."

Commonly used

Spray foam insulation is very common on modern construction projects and is a great material to use with wood construction, saidMartenDuhoux, a principal with FT3 Architecture, Landscape and Interior Design in Winnipeg.

"I don't think I have any projects that don't use it," he said.

Duhouxsaid none of his projects have ever had a problem with spray foam insulation, but he has heard of fires happening.

"This kind of thing happens. It's just a reminder for the public that you want people with experience [installing the foam]," he said.

FT3'sbuildingspecifications require spray foam installers to have a certain level of experience, Duhoux said.

Having experienced people "isn't a guarantee that it won't happen, but it will be less likely."

Highly regulated

Keith Bowie, the owner of Ecology Spray Foam, said what happened at Stella's is "extremely rare."

Bowie estimates there are roughly 600,000 buildings across Canada that have spray foam insulation. In his eight years in the business, he hasn't heard of anything like what happened at Stella's Thursday night.

"We're one of the most regulated sub-trades in the construction business," said Bowie.

"In order to buy foam you have to be certified, you have to go through a certification training process.... We have to in fact get re-certified every fiveyears most trades don't have to do that."

Builds up heat in some cases

Linda King of Penta Coatings, which has been installing foam insulation for 27 years,said spray foam insulation is safe as long as the work is done properly.

The insulationshould be applied in two-inch passes and allowed to cool before another layer is added, King said.

Not allowing it to cool properly could trigger a chemical reaction that builds up heat, she said.

"It's combustible. It will build up heat, and not in all situations, but depending on how thick it is, yes, it will build up heat and can catch fire," she said.

"I've heard of it, but this is the first one I've heard of in Winnipeg."

PentaCoatings was not the company hired to install spray foam installation at Stella's on SherbrookStreet, King added.