Toronto Eco Roof
What is a green roof
For the purposes of Toronto's Green Roof Bylaw and the Eco-Roof Incentive Program, a green roof is an extension of an above grade roof, built on top of a human-made structure, that allows vegetation to grow in a growing medium and which is designed, constructed and maintained in accordance with the Toronto Green Roof Construction Standard. A green roof assembly includes, as a minimum, a root repellent system, a drainage system, a filtering layer, a growing medium and plants, and shall be installed on a waterproof membrane of an applicable Roof.
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Layers of a typical green roof
There are three main types of green roof systems:
For the purposes of Toronto's Green Roof Bylaw and the Eco-Roof Incentive Program, a green roof is an extension of an above grade roof, built on top of a human-made structure, that allows vegetation to grow in a growing medium and which is designed, constructed and maintained in accordance with the Toronto Green Roof Construction Standard. A green roof assembly includes, as a minimum, a root repellent system, a drainage system, a filtering layer, a growing medium and plants, and shall be installed on a waterproof membrane of an applicable Roof.
Layers of a typical green roof
There are three main types of green roof systems:
- complete systems where all the different components including roof membrane are an integral part of the whole system
- modular systems that are positioned above the existing roofing system
- pre-cultivated vegetation blankets that consist of growing medium and plants that are rolled onto the existing roofing system with drainage mats and root barriers as required
