Lufa Farms, Quebec, Canada
![The rooftop greenhouse of Lufa Farms in Ahuntsic, Montreal. This is their first 31,000 square feet rooftop greenhouse. Halfway 2013, Lufa Farms integrated a second 43,000 square feet carbon neutral and positive pressure Ultra-Clima greenhouse from KUBO on a rooftop in Laval.](https://www.hortidaily.com/remote/https/agfstorage.blob.core.windows.net/hd-com/photos/6058/Lufa-121.jpg?preset=AlbumCoverThumb)
![Inside Lufa Farms rooftop greenhouse, the same systems as in a regular commercial glasshouse are used; they even grow their crops on advanced gutter systems and use heating pipes to transport harvesting and crop worker trolleys.](https://www.hortidaily.com/remote/https/agfstorage.blob.core.windows.net/hd-com/photos/6058/Lufa-122.jpg?preset=AlbumCoverThumb)
![A cropworker between the pepper crops'; they are grown on hydroponic substrates; a combination of rockwool starter cubes on coco peat slabs. If you look close at the picture you can see the sachets with beneficial insects that Lufa brings in the crops to fight pests on a natural, biological and sustainable way.](https://www.hortidaily.com/remote/https/agfstorage.blob.core.windows.net/hd-com/photos/6058/Lufa-123.jpg?preset=AlbumCoverThumb)
![Lufa Farms is growing the crops with as much as biological controls as possible; synthetic pesticides are not used inside the greenhouse.](https://www.hortidaily.com/remote/https/agfstorage.blob.core.windows.net/hd-com/photos/6058/Lufa-125.jpg?preset=AlbumCoverThumb)
![At this section, Lufa propagates young plants and banker plants with a multilayer system. They use LEDs and conventional supplemental lighting.](https://www.hortidaily.com/remote/https/agfstorage.blob.core.windows.net/hd-com/photos/6058/Lufa-127.jpg?preset=AlbumCoverThumb)
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