The Alpine Meadow+ (download product sheet) is a loose-laid system consisting of a mix of pre-grown sedum and drought resistant meadow plants rolled out on top of 150 mm of intensive growing medium. Stormwater retention is increased with the Hydro Blanket which holds more rainfall compared to traditional growing medium while remaining lighter in weight. Plants are grown on a “blanket” and harvested like sod. Provides excellent instant green with 85% foliar coverage upon installation. The Meadow Blanket helps reduce water evaporation, soil erosion and weed growth. Components are easy to transport and install.

Product Code Product Name Metric Thickness (mm) Dry Wt. (kg/m2) Sat. Wt. (kg/m2) Water ret. (l/m2)
NL719 Meadow Blanket 20.00 19.70 37.00 17.30
NL630 Growing Medium 150.00 129.90 211.65 81.75
NL501 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 213.85 154.40 278.65 124.25


Meets Toronto Green Standard V4

WQ 1.1

  1.  Water Balance

WQ 1.3

2. Intensive Green Room

3. Biodiverse Green Roof


Increased Stormwater Retention

Stormwater retention is increased with Needled Mineral Hydro Blanket which holds more rainfall compared to traditional growing medium while remaining lighter in weight.

Unique Design & Logo Creation

The Meadow Blanket can adapt and conform to various roof designs and can be easily cut to fit any shape. The flexible blanket can drape over various depths of growing medium for an undulating roofscape. Innovative for providing an enhanced aesthetic in a custom manner, over areas that are highly visible or that do not have strict weight restriction.



The Alpine Meadow+ vegetated system is loose-laid on a CRA which helps to protect and extend the lifespan of the roofing membrane which otherwise would be exposed to destructive elements such as ultraviolet degradation, thermal cycling, hailstone impact, and other environmental hazards.



Insulation is located above the roofing membrane. A root barrier is installed in between the insulation and roofing membrane to promote open diffusion and ensure the top surface of the insulation has a ventilating air space. The roofing ballast above the insulation becomes part of the system and acts like the drainage layer. Contact us for other roofing assemblies.


Next Level Stormwater Management provides a Survivability Report with details about the success of our projects to assist with permit processes, such as the City of Toronto permit application.    For more general info or help with other municipalities, please see FAQ or contact us.


Independently to CAN/CSA A123.24

Next Level Stormwater Management was a key participant in developing the Canadian Standard Test Method for Wind Resistance of Modular Vegetated Roof Assembly – the first such test in the world. Contact us for more info.

Technical Document Downloads


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