Greenhouse Canada

Lufa Farms announces largest rooftop greenhouse to date

November 26, 2019  By Lufa Farms (edited)

Lufa Farms new greenhouse in Saint-Laurent (CNW Group/Lufa Farms)

Lufa Farms has announced the construction of their fourth commercial rooftop greenhouse, soon to be completed in the borough of Saint-Laurent.

The greenhouse will measure 163,800 square feet (about 3 football fields), making it the largest rooftop farm in the world, says the company. Construction began in September of this year and is expected to be finished by March 2020. This milestone also coincides with the tenth anniversary of Lufa Farms’ founding in 2009.

“With each greenhouse, we hold ourselves to an ever-higher standard for sustainable design. Our new farm will be the most energy efficient to date and integrate all our learnings from the last ten years to responsibly grow more vegetables for Lufavores year-round,” says Lauren Rathmell, Co-Founder and Greenhouse Director.
Responsible agriculture meets innovative greenhouse technology


The greenhouse will feature double-paned glass and two sets of energy-saving screens for improved insulation, and its integration with the building below provides additional thermal benefit to both structures. The greenhouse will also capture rainwater to be used in the closed-loop irrigation system, as well as offset waste with an on-site composting system. At this fourth and largest site, Lufa Farms will be growing eggplants and more than ten unique tomato varieties without the use of synthetic pesticides.

Lufa Farms’ most recent greenhouse will have a greater surface area than their three current greenhouses combined. “This rooftop greenhouse will double our growing capacity and allow us to feed 2% of Montreal with fresh, local vegetables. It’s an unbelievable step forward for hyper-local, sustainable urban farming,” says Mohamed Hage, Co-Founder and CEO.

Saint-Laurent’s Mayor, Alan DeSousa, further stated that “as a sustainable municipal territory, Saint-Laurent is proud to welcome the fourth greenhouse for Lufa Farms. Located in the heart of Saint-Laurent’s biodiversity corridor, this greenhouse will facilitate residents’ access to local, sustainably-grown products and further promote healthy habits. It will also make it possible to fight against heat islands in our district, where more than 70% of the surface area is devoted to industrial and commercial activities.”

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