Campbell River Gets a Green Roof

Success Story Snapshot |
Energy Savings: Reduced heating and cooling needs by up to 25% per year which equals a 2 tonne reduction of CO2 emissions per year. |
Business case: Energy savings over the life of the roof estimated at $106,000 and life-cycle cost savings estimated at $196,000.
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Additional benefits: Lifespan of the underlying conventional roof doubled from 25 to 50 years. |
Total project cost: $489,039.83 (Grant from Gas Tax Fund)*
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Project Summary

Benefits
The project resulted in numerous environmental benefits. Primarily, insulation from the vegetation layer reduced heating and cooling needs by up to 25 per cent, resulting in a reduction of 2 tonnes of CO2 emissions per year. The vegetation layer also annually filters 500 kg of fine airborne particulate matter, increases storm water runoff retention, and reduces urban heat island effect. The City also plans to use the green roof as an educational tool (e.g. compost and vegetable gardening demonstrations).
Economic Advantages

Cost
Installation of the roof cost a total of $489,039.83, with capital costs covered entirely by a grant received from the Community Works Fund (Federal Gas Tax Fund)*. Gas Tax funding may only be used for eligible costs of eligible projects as set out in the Canada-BC-UBCM Gas Tax Agreement. The agreement and other information about the program is available here.
Lessons Learned

Second, developing a comprehensive education and communications package about the green roof retrofit prior to project inception can support a positive public perception of the benefits and financial costs of the project. The earlier this information is prepared and communicated to the public, the more opportunities for community engagement.
Other Examples:
* Most grant funding is subject to eligibility or other requirements, and readers should consult
Contact:
Amber Zirnhelt Sustainability Manager, City of Campbell River 250-286-5742 amber.zirnhelt@campbellriver.ca
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