How big can green roofs be?



  1. 0 Votes

    There is no legal limit to the size green roofs can be.  Although some cities, such as Toronto, require that buildings exceeding a certain size have a green roof.

  2. 0 Votes

    One of the biggest green roofs in Europe is on the Rolls Royce factory and covers more than 32,000m². Spain’s Banco Santander headquarters has a 100,000m² green roof and has claimed the title of “Europe’s largest green roof.” In the US, Ford’s green roof in Michigan covers 454,000 square feet or 10.4 acres!

  3. 0 Votes

    There is no limit to how large a green roof can be, so a green roof can be as big as you would possible want one to be. As long as you have the resources such as a large roof and budget.

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