Heavy Rain Hits Across Canada
Credit: Shlomi Amiga
Two days of rain in Toronto in August 2018 caused great damage and more than $80 million in insurance claims. Since 2017, Ottawa, Gatineau, and Montréal have flooded three years in a row. A state of emergency was declared, and the army deployed in April 2019. In 2013, in just 48 hours, the Calgary area was deluged with 325 mm (13 inches) of rain – the city’s entire annual average – causing five deaths, displacing more than 100,000 people and costing $1.7 billion. The implementation of green infrastructure and innovative technology can help the mitigate such flooding in the urban core.
Innovative Technology Mimics Nature
StormCap™+Detention Mitigates Floods
StormCap™+Detention is an innovative rooftop stormwater detention tool that mimics watersheds and aquifers to help mitigate urban flooding. Detention technology allows the green roof to face second day and extra-large storms.
- Can manage large and repeat storms and is not dependent on weather to provide a repeat performance
- Lessen the strain on storm sewers and decrease combined sewer overflow (CSO)
- Stores water temporarily and limits the rate at which water flows from the roof drain; and
- Can recharge in as little as a few hours
Hot Off the Press
Read “Creating Friction in Green Roofs: Reinventing the Traditional Green Roof” by Sasha Aguilera and Brad Garner, Construction Canada, October 2019. Contact Sasha to learn more about StormCap+Detention.
Clear Return on Investment (ROI)
StormCap™+Detention provides a clear ROI by reducing or eliminating cisterns and bioretention facilities and freeing up valuable space for income-generating development. It even works on a sloped roof!
Powered by Urbanscape™
The engineered base layers include Urbanscape™’s needled mineral hydro blanket, made solely of virgin rock fibre by Knauf Insulation. This mineral wool has no binders and therefore has superior retention of 90% of water by volume and withstands freeze/thaw cycles.
Most of StormCap™+Detention’s base layers come in rolls that are easy to transport and install. It is a fully customizable system with biodiversity options. And, can be cut in any shape or size to create logos or icons on the roof!
Next Level Stormwater Management is a one-stop-shop supplying vegetated roof systems customized to local requirements, with warranty and maintenance support. Offer analytical support such as stormwater calculations specific to location and building/roof type.