Green Roofs

The Project

Thanks to multi-year funding from Environment and Climate Change Canada’s Eco Action Community Funding Program, and the Small Change Fund, EOS Eco-Energy is working with community partners in Sackville, NB to install two semi-intensive/extensive green roofs. Sites will enable local residents and students to learn more about green roofs and their benefits for managing stormwater. The green roofs will also create more outdoor community spaces, which is especially helpful during the current COVID-19 pandemic. 2020-2021 is a planning and design year. 2021-2022 will see the roofs installed and promoted. Stay tuned for more details.

The Goals

  1. To reduce runoff from buildings and manage stormwater with green infrastructure;
  2. To promote the benefits of green infrastructure, specifically green roofs;
  3. To increase community resilience to climate change; and
  4. To education the public, including youth and small businesses, about community resiliency including green roofs.

Our Partners

Town of Sackville (green roof expansion project complete)

Mount Allison University (green roof for the McCain Student Centre is being planned)

 

Project Reports

Coming soon!

 

Virtual Green Roof Tour 

Experience the green roof on the Sackville Town Hall with this informative video.

 

Educational Resources

Green_Roof_Brochure

Green Roof Activities Guide k-12

 

What is a green roof?

Green roofs (also called vegetated roofs or living roofs) are planted gardens on the tops of buildings, covering all or part of the roof. They have a waterproof membrane, root barrier, drainage layer, filter layer, moisture retention later, and growing medium (or soil) that support living vegetation.

What are the benefits of green roofs?

Green roofs have many benefits. Most importantly they absorb rainwater and help to reduce local flood risk. They also provide additional insulation for the building and can extend the life of the roof. Green roofs increase biodiversity, create natural habitat for birds, insects and other wildlife. They also help to lower urban air temperatures by mitigating the heat island effect, filter pollutants and sequester carbon. They create attractive spaces that can help reduce our stress, connect us with nature, and provide space to grow food. The many co-benefits of green roofs will enhance the resiliency of our region to climate change impacts.

Types of Green Roofs

INTENSIVE ROOFS: Have a minimum depth of about 15 cm, supporting wide variety of plants, even trees. They are heavier, more expensive and require more maintenance.

Example of an intensive green roof with trees

EXTENSIVE ROOFS: Low maintenance shallow coverage, ranging in depth from 2 cm to 15 cm,  much lighter and cheaper than intensive green roofs.

Example of a simple extensive green roof

Green Roofs for Healthy Cities, 2003

Design Considerations

Before installing a green roof, an engineer must ensure the roof is designed suitable and can support the heavy load of the green roof. Building permits may also be needed.

Ensure your roof can hold the load of the green roof and is a suitable pitch and design.

Suitable Maritime Canada Native Plants

  • Pearly everlasting
  • Early goldenrod
  • Common bearberry
  • Eastern teaberry
  • Late low bush blue berry (edible)
  • Small-flowered evening primrose
  • Wild strawberry (edible)
  • Sedges
  • Echinacea
  • Black eyed susans
  • Switch grass
  • And more many

(List supplied by Atlantic Canada Conservation Data Centre)

 

Green Roof Installers

Interested in installing a green roof on your building? Here are some green roof installers that serve New Brunswick:

Soprema

Tremco

And many others!

 

Our Funders

  • Small Change Fund
  • Mount Allison University Students’ Union’s Green Investment Fund
  • R-PEACE
  • NBEN
  • NRCan
  • New Brunswick Environmental Trust Fund

Thank you for your support!