Promoting well-Being, biodiversity and local food sourcing
Traditional roofing systems contribute to climate change and atmospheric pollution, not to mention all the asphalt, gravel and other waste that end up in landfills every 20 years or so.
Inversely, vegetated roofs:
- beautify the environment;
- boost occupants’ thermal and acoustic comfort;
- improve air quality;
- maximize rainwater recovery;
- cut energy consumption;
- increase roof service life up to 60 years;
- provide shelter for birds and insects;
- can serve as vegetable gardens.
A green roof is particularly effective in urban settings for growing herbs and vegetables. Urban vegetable gardens reduce pesticide use and the environmental footprint associated with importing food.
Did you know that...
The green roof that tops the head office of the California Academy of Sciences recovers rainwater, imitates the surrounding landforms, provides natural air-conditioning through openings that let the warm air escape during the day and cool air enter at night.
The city of Chicago has grown 38,800 square feet of semi-extensive vegetation on its city hall roof to fight urban heat islands. This green-roof research centre also serves as an example to citizens while lowering the city’s annual electricity bill.
The Pathway to Phytotechnologies and educating youth
In the summertime, the pavilion located in the Youth Gardens offers shelter from the rain and hot sun. A new building with washrooms and a green roof will be added, and its greywater will be treated by means of filtering marshes (see Station 2).
Educating youth on nature is at the heart of the Botanical Garden’s mission since it was created. This new station will be an ideal spot for young people to learn about phytotechnologies, a new way of living.