Amendments have been approved by the City of Duncan to replace the requirement for a green roof by omitting how much of a financial contribution it’ll make to the city.
According to a council report, last yearapproval was given to a zoning bylaw amendment to develop a two-storey, mixed-use building at 725 Canada Avenue which would incorporate the green roof.
The report also indicates that last month the owner of the property applied for an amendment to be issued for removal of certain requirements due to the nature of the roof and the amount of maintenance it requires.
“The owner applied for an amendment to the issued development permit to remove the requirement for a green roof due to the cost and based on the perception that green roofs are impractical, and tend to die,” the report says.
According to an analysis by the city, they found having more facilities with green roofs have a significant impact on the environment and can also help mitigate climate change.
“Green roofs are beneficial because they help mitigate minor rainfall events,” they say. “This reduces pressure on conventional drainage infrastructure, helps manage the urban heat island effect, provides habitat for pollinator species, improved energy efficiency and air quality.
“There are no downsides to green roofs, other than the added costs.”
Council says the cost of works and services to the owner by approximately $164,000 and says while there are significant positive impacts on the community, there are situations where green roofs are just not practical.
“Green roofs may not be feasible in taller buildings (5-6 storey), conventional wood frame, where structural requirements may preclude the weight of a green roof,” they say.
The proposed design for 725 Canada Avenue would include storm water management, soil cells for trees, and a rear parking lot.
To see more about the city’s decision, visit their website.
