![]() |
Toronto now requires up to 50% green roof coverage on multi-unit residential dwellings over six stories, schools, nonprofit housing, and commercial and industrial buildings. |
The city of Toronto late last month passed a new green roof by-law that consists of a green roof construction standard and a mandatory requirement for green roofs on all classes of new buildings. The by-law requires up to 50% green roof coverage on multi-unit residential dwellings over six stories, schools, nonprofit housing, and commercial and industrial buildings. Larger residential projects require greater green roof coverage, ranging anywhere from 20–50% of the roof area.
"The City of Toronto's leadership on all things green took another major step by making it obligatory to have green roofs for all types of new buildings," said Deputy Mayor Joe Pantalone, the primary champion of the new by-law. "This by-law is a major part of the solution to climate change, the creation of green jobs, and it represents a whole new mindset on how our cities approach the 20% or so of surface area that are roofs."
Chicago has the greatest number of installed green roofs, according to the Green Roofs for Healthy Cities' Annual Green Roof Industry Survey released last month. The mandatory by-law in Toronto may change that, resulting in approximately 50 to 75 new projects annually, according to GRHC president Steven W. Peck.
Toronto already requires green roofs on city-owned properties, has established a financial incentive of up to $5 per square foot for existing buildings, and is currently building a publicly accessible green roof on its city hall.
For more on the green roof by-law, visit: www.toronto.ca/building.
Source: Green Roofs for Healthy Cities' Fourth Annual Industry Survey | |
Chicago | 534,507 |
Washington, D.C. | 501,042 |
New York | 358,986 |
Vancouver | 320,000 |
Philadelphia | 196,820 |
Baltimore | 150,032 |
Montreal | 75,700 |
Grand Rapids, Mich. | 74,784 |
Princeton, N.J. | 56,250 |
Newtown Square, Pa. | 48,130 |
Related Stories
Green | Aug 7, 2023
Rooftop photovoltaic panels credited with propelling solar energy output to record high
Solar provided a record-high 7.3% of U.S. electrical generation in May, “driven in large part by growth in ‘estimated’ small-scale (e.g., rooftop) solar PV whose output increased by 25.6% and accounted for nearly a third (31.9%) of total solar production,” according to a report by the U.S. Energy Information Administration.
Digital Twin | Jul 31, 2023
Creating the foundation for a Digital Twin
Aligning the BIM model with the owner’s asset management system is the crucial first step in creating a Digital Twin. By following these guidelines, organizations can harness the power of Digital Twins to optimize facility management, maintenance planning, and decision-making throughout the building’s lifecycle.
Sustainability | Jul 26, 2023
Carbon Neutrality at HKS, with Rand Ekman, Chief Sustainability Officer
Rand Ekman, Chief Sustainability Officer at HKS Inc., discusses the firm's decarbonization strategy and carbon footprint assessment.
Mass Timber | Jul 11, 2023
5 solutions to acoustic issues in mass timber buildings
For all its advantages, mass timber also has a less-heralded quality: its acoustic challenges. Exposed wood ceilings and floors have led to issues with excessive noise. Mass timber experts offer practical solutions to the top five acoustic issues in mass timber buildings.
Green | Jun 26, 2023
Federal government will spend $30 million on novel green building technologies
The U.S. General Services Administration (GSA), and the U.S. Department of Energy (DOE) will invest $30 million from the Inflation Reduction Act to increase the sustainability of federal buildings by testing novel technologies. The vehicle for that effort, the Green Proving Ground (GPG) program, will invest in American-made technologies to help increase federal electric vehicle supply equipment, protect air quality, reduce climate pollution, and enhance building performance.
3D Printing | Jun 20, 2023
World's largest 3D-printed building completed in Florida
Printed Farms, known for completing Florida’s first permitted 3D-printed house in Tallahassee, announces the completion of the world’s largest 3D-printed building: a luxury horse barn.
Mechanical Systems | Jun 16, 2023
Cogeneration: An efficient, reliable, sustainable alternative to traditional power generation
Cogeneration is more efficient than traditional power generation, reduces carbon emissions, has high returns on the initial investment, improves reliability, and offers a platform for additional renewable resources and energy storage for a facility. But what is cogeneration? And is it suitable for all facilities?
AEC Innovators | Jun 15, 2023
Rogers-O'Brien Construction pilots wearables to reduce heat-related injuries on jobsites
Rogers-O'Brien Construction (RO) has launched a pilot program utilizing SafeGuard, a safety-as-a-service platform for real-time health and safety risk assessment. Non-invasive wearables connected to SafeGuard continuously monitor personnel to prevent heat exhaustion on jobsites, reducing the risk of related injuries. RO is the first general contractor to pilot this program.
Mass Timber | Jun 13, 2023
Mass timber construction featured in two-story mixed-use art gallery and wine bar in Silicon Valley
The Edes Building, a two-story art gallery and wine bar in the Silicon Valley community of Morgan Hill, will prominently feature mass timber. Cross-laminated timber (CLT) and glulam posts and beams were specified for aesthetics, biophilic properties, and a reduced carbon footprint compared to concrete and steel alternatives.
Engineers | Jun 5, 2023
How to properly assess structural wind damage
Properly assessing wind damage can identify vulnerabilities in a building's design or construction, which could lead to future damage or loss, writes Matt Wagner, SE, Principal and Managing Director with Walter P Moore.