Toronto becomes first city to mandate green roofs
Toronto is the first city in North America with a bylaw that requires roofs to be green. And we’re not talking about paint. A green roof, also known as a living roof, uses various hardy plants to create a barrier between the sun’s rays and the tiles or shingles of the roof. The plants love the sun, and the building (and its inhabitants) enjoy more comfortable indoor temperatures as a result.
Toronto’s new legislation will require all residential, commercial and institutional buildings over 2,000 square meters to have between 20 and 60 percent living roofs. Although it’s been in place since early 2010, the bylaw will apply to new industrial development as of April 30, 2012. While this is the first city-wide mandate involving green roofs, Toronto’s decision follows in the footsteps of other cities, like Chicago and New York.
Hmm… I want to know more. In the meantime, here’s a fun fact: In Canada, a “by-law” is more or less equivalent to what we call “zoning code” here in the U.S.