Toronto s green roof bylaw defines 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.
Green roof bylaw city of toronto.
In 2009 toronto was the first city in north america to adopt a bylaw to require and govern the construction of green roofs.
Toronto municipal code chapter 492 green roofs.
Toronto green roof bylaw.
Toronto is the first city in north america to have a bylaw that requires and governs the construction of green roofs on new developments.
It was adopted by toronto city council in may 2009 under the authority of section 108 of the city of toronto act.
The requirement ranges from 20 60 of.
The green roof bylaw sets out a graduated green roof requirement for new development or additions that are greater than 2 000 m in gross floor area.
The standard can be found in article iv of the green roof bylaw municipal code chapter 492 green roofs.