StormCap+™ (Ontario Only)
StormCap+™ (Ontario Only)
Superior – Up to 10 IA

Key features
10 IA with pre-grown system
- Improves on site water balance (TGS WQ 1.1) with superior initial abstraction (IA)
- Superior water-retaining system that’s pre-gown and instant green with 85% foliar coverage
- Hydro Blanket is non-petroleum, formaldehyde-free alternative. Acts as a water reservoir, holding up to 90% of its volume in water reliably throughout the lifespan of the roof
- Growing medium stores water and improves thermal performance
- Ideal source control BMP stand alone or as part of a treatment train
- Low maintenance
Properties
Product Code | Product Name | Thickness (mm) | Dry Weight (kg/m2) | Saturated Weight (kg/m2) | Water Retention (l/m2) |
---|---|---|---|---|---|
NL718 | Sedum Blanket | 20.00 | 17.20 | 29.70 | 12.50 |
NL600 | Growing Medium | 70.00 | 56.70 | 98.00 | 41.30 |
NL501 | NM Hydro Blanket x 2 | 51.60 | 7.80 | 57.60 | 49.80 |
NL400 | Filter Fabric | 0.55 | 0.10 | 0.40 | 0.30 |
NL300 | Drainage Mat | 17.00 | 0.34 | 0.34 | 0.00 |
NL120 | Root Barrier | 0.50 | 0.46 | 0.46 | 0.00 |
Total | 159.65 | 82.60 | 186.50 | 103.90 |
Product Code | Product Name | Thickness (inch) | Dry Weight (psf) | Saturated Weight (psf) | Water Retention (inch) |
---|---|---|---|---|---|
NL718 | Sedum Blanket | 0.79 | 3.52 | 6.08 | 0.49 |
NL600 | Growing Medium | 2.76 | 11.62 | 20.08 | 1.63 |
NL501 | NM Hydro Blanket x 2 | 2.03 | 1.60 | 11.80 | 1.96 |
NL400 | Filter Fabric | 0.02 | 0.02 | 0.08 | 0.01 |
NL300 | Drainage Mat | 0.67 | 0.07 | 0.07 | 0.00 |
NL120 | Root Barrier | 0.02 | 0.09 | 0.09 | 0.00 |
Total | 6.29 | 16.92 | 38.21 | 4.09 |
Stormwater Management (SWM)

Stormwater Management (SWM)
- Specialized, instant green, stormwater retention system
- Hydro Blanket filters particulates and cleans the water
- Source control BMP either stand alone or as part of a treatment train
High Performance

High Performance
- High water storage reduces plant stress between rainfall events
- Growing medium stores water and improves thermal performance
- System parameters can be customized to meet SWM requirements
Low Maintenance

Low Maintenance
- Mature, established sedums are hardy, heat & drought tolerant
- Low-profile plants do not require any mowing or trimming
- High built-in water storage reduces irrigation needs
The Bioberm™ Add-On
A cost-effective option to enhance biodiversity on the StormCap™ green roof system, maximize value, achieve LEED or meet the Toronto Green Standard Native/Biodiverse requirements. BioBerm™ is a multi-strategy design technique approved by the Design Guidelines for Biodiverse Green Roofs.
Unique Design
Sloped, rounded, pyramid-shaped, StormCap™ easily adapts and conforms to various roof designs. The sedum blanket and premium base layers are fully customizable and can be easily cut to fit any shape and design.
Projects That Use StormCap+™
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In-Person Presentations or Live Webinars
Engineering Green Roofs for CoV’s Rainwater Management Plan
Green roofs play a key role in the City of Vancouver’s (CoV) new simplified rainwater management (RWM) requirements for new Part 3 buildings that took effect on Jan 1. We will learn how to design green roofs to help meet CoV’s retention/detention requirements and when upgrading to a blue-green roof can increase ROI.
Engineering Green Roof Systems to Optimize SWM 2.0
2.0 is a deep dive into the latest stormwater retention and detention technologies. Learn to use modeling to meet water balance and quantity control targets through initial abstraction and irrigation water reuse. Recognize opportunities and limitations. Case study demonstrates performance and cost savings.
Strategies to Meet Policy & Design Goals in Toronto
Check off multiple requirements set by the Toronto Green Standard (TGS) & Wet Weather Flow Management Guidelines (WWFMG). Success requires collaboration between architect, landscape architect & engineers, as well as understanding components, their functions & selection criterion to achieve specific goals.
NutsN’Bolts: A-Z of Essential Tips to Achieve Success
This three part series navigates through the complete green roof process; from recognizing opportunities, to planning, to material selection and system design with emphasis on stormwater management, to specifications and drawings, to clarity in construction documents and, finally green roof aftercare and maintenance for long term success. (3 hours over 3 weeks)
Cost Saving Strategies to Meet Toronto’s Green Roof Policy
Love ’em or hate ’em green roofs are everywhere and can check off multiple requirements set out by the Toronto Green Standard (TGS) and the Wet Weather Flow Management Guidelines (WWFMG). This webinar explores functions and selection criterion, and the collaboration between architect, landscape architect and engineer to achieve specific design goals.
Wind Design for Modular Vegetated Roof Assemblies
Webinar about the CSA A123.24: Standard Test Method for the Wind Resistance of Modular Vegetated Roof Assembly (VRA) reviews the two key test components that measure wind uplift and wind flow resistances. Videos & case studies help demonstrate how VRAs behave at different wind pressures and wind speeds.