Toronto Green Standard Green Roof
Mid to high rise residential non residential version 3.
Toronto green standard green roof. The standard consists of tiers tiers 1 to 4 of performance measures with supporting guidelines that promote sustainable site and building design. The toronto green roof construction standard tgrcs is the first municipal standard in north america to establish the minimum requirements for the design and construction of green roofs. The tgrcs establishes the city s requirements while also meeting the ontario building code obc requirements. In 2009 toronto was the first city in north america to adopt a bylaw to require and govern the construction of green roofs.
Achieving the tgs performance measures will help meet this goal. The requirement ranges from 20 60 of the available roof space of a building. Residential apartment development 4 storeys and higher and all industrial commercial and institutional ici developments.