Alpine Meadow+ (Ontario Only)
Alpine Meadow+ (Ontario Only)
7+mm IA Pre-Vegetated System
A biodiverse green roof with enhanced water retention to
Key features
A pre-vegetated system that supports biodiversity and manages stormwater
- Up 7+ mm initial abstraction (IA) and includes all the benefits of Alpine Meadow
- Hydro Blanket greatly increases stormwater management capability
- Ideal when both biodiversity & stormwater management are needed
- Mats grown in Ontario
- Pre-vegetated mat-based system with pollinator-friendly native plants
- Biodiverse green roof as defined by Toronto Green Standard (TGS)
- Native plants meet LEED SS Credit: Protect or Restore Habitat
Properties
| Product Code | Product Name | Thickness (mm) | Dry Weight (kg/m2) | Saturated Weight (kg/m2) | Water Retention (l/m2) |
|---|---|---|---|---|---|
| NL719 | Meadow Blanket | 20.00 | 19.70 | 37.00 | 17.30 |
| NL630 | Growing Medium | 150.00 | 105.00 | 204.00 | 99.00 |
| NL501 | NM Hydro Blanket | 25.80 | 3.90 | 28.80 | 24.90 |
| 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 | 213.85 | 129.50 | 271.00 | 141.50 |
| Product Name | Product Name | Thickness (inch) | Dry Weight (psf) | Saturated Weight (psf) | Water Retention (inch) |
|---|---|---|---|---|---|
| NL719 | Meadow Blanket | 0.79 | 4.03 | 7.58 | 0.68 |
| NL630 | Growing Medium | 5.91 | 21.51 | 41.80 | 3.90 |
| NL501 | NM Hydro Blanket | 1.02 | 0.80 | 5.90 | 0.98 |
| 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 | 8.42 | 26.53 | 55.52 | 5.57 |
TGS v4 & LEED Compliant
TGS v4 & LEED Compliant
- Meets TGS WQ 1.3 On-Site Green Infrastructure as biodiverse green roof
- Uses only natives listed in Design Guidelines for Biodiverse Green Roofs
- Use of native plants meets LEED SS Credit: Protect or Restore Habitat
Water Balance & Irrigation Reuse
Water Balance & Irrigation Reuse
- 7+mm initial abstraction for water balance calculation as per Toronto Water
- Additional retention can reduce storage volume required in water balance
- Supports irrigation water reuse onsite with drip irrigation system
Low Maintenance
Low Maintenance
- Ontario native plants that are specially selected to thrive on rooftops
- Pre-grown natives are heat & drought tolerant with low nutrient needs
- Perennials come back year after year, also propagate by seeds
Pollinators’ Haven
Native hardy plants provide nourishing pollen and nectar, and nesting habitats.
Plants are pre-grown as a “blanket” with over 85% vegetation coverage upon installation.
Certified to sustain 200 km/h winds.
Meets Toronto Green Standard V4
WQ 1.1
1. Water Balance
WQ 1.3
2. Intensive Green Roof
3. Biodiverse Green Roof
Technical Document Downloads
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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.