Type IV: Meadow
Three-layer system
Fast Facts
CSI Specification
Type IV:
Meadow Specification
Details
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Profile
In the three-layer Meadow system, the Savannah-type growth medium and drainage layers are supported by additional granular media, forming a water storage layer. The captured rain or irrigation water performs as a perched water table does in nature. A moisture management fabric underlies the system.
This system provides passive irrigation and optimal conditions for efficient active base trickle irrigation:
- Wind Erosion Stabilization System
- Lightweight Growth/Drainage Medium
Root-permeable
Separation Fabric
- Thermal Shield (for semi-arid climates)
- Lightweight Granular Drainage Media
- Protection/Water Distribution Fabric (for unirrigated systems)
- Root Barrier Membrane (when required)
- Waterproofing
Typical Depth: 6 - 9 inches
Max. Saturation Weight: 40 - 61 lbs/square foot
Typical Plant Families
- Meadow Grasses
- Meadow Perennials
- Turf (requires 9 inches - 12 inches depth)
Optional irrigation: Active base flood irrigation
Recommended for
- Habitat creation/restoration
- Large perennials or ornamental plants
- Use with patios and paths
- Moderate maintenance
- Weight-tolerant roofs
- Roof pitches to 1/2:12
Data Sheet
Typical Applications
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Learn more about other Roofmeadow® Assemblies