Green roofs cool the surrounding air and reduce building heat through a layer of vegetation or other plants. Green roofs can also serve as additional green space. There are two main types of green roofs: intensive and extensive.
Incentivize installation of green walls through expedited permitting, tax credits, zoning bonuses, and stormwater credits or energy discounts.
Considerations for Use
Green walls require sufficient irrigation and high levels of ongoing maintenance. Plants should be selected that provide dense foliage to maximize coverage.
Policy Levers:IncentiveFinancial and non-financial incentives to encourage stakeholders to implement heat risk reduction and preparedness solutions, including rebates, tax credits, expedited permitting, development/zoning bonuses, and more.
Trigger Points:City planning processesIncludes city initiatives such as the development of climate action plan, pathway to zero-energy, master plan, transit plan, energy mapping etc.Introducing new or updated zoning/codesIncludes codes, zoning requirements or by-laws pertaining to urban planning and building construction activity.
Intervention Types:Green/natural Infrastructure
Target Beneficiaries:Heat-vulnerable communities, Property owners, Residents
Phase of Impact:Risk reduction and mitigation
Metrics:Decrease in building temperature, Energy savings, Number of installations completed and in progress projects, Stormwater runoff reduction
Authority and Governance:City government
Implementation Timeline:Medium-term (3-9 Years)
Implementation Stakeholders:City government, Private developers, Property owners and managers
Funding Sources:Private investment, Public investment
Capacity to Act:High
Co-benefits (Climate/Environmental):Improve stormwater management, Preserve biodiversity, Reduce air and water pollution
Co-benefits (Social/Economic):Build social cohesion, Improve human health, Increase property values, Save on utilities