Green roof at the Stinson Bus Garage

Les Toits Vertige is a Montreal company specializing in the design and construction of green roofs. Their mission is to transform the flat roofs of Montreal into urban oases, improving the quality of life for all without affecting urban development.

The project that has had the greatest impact on biodiversity to date is undoubtedly the green roof of the STM building on Stinson street, located in an industrial area of Ville Saint-Laurent where mineral surfaces are vast and ground vegetation is rare. Completed in 2014, it is one of the largest vegetated roofing projects in Canada, extending over an area of 72,000 ft². The roof canopy is composed of twenty species of plants, namely sedum, which bloom from May to October and attract a host of insect pollinators.