Bio-Superlite
Extensive, thin, lightweight built-up green roof system
The lightest built-up assembly in the range, for decks with nothing left to give.
- Depth
- 2" (50 mm)
- Saturated
- 11 lb/ft²
- Retention
- 45%
Green roof systems
From lightweight, low-maintenance options to lush, high-performance landscapes, our systems are designed to fit every project and climate. Choose by what the roof is being asked to carry and to do, and the build-up follows from it.
Answer four questions insteadExtensive
Lightweight, low-maintenance, and easy to love. With just 2–4 inches of depth, they support hardy plants like sedum and short grasses, making them perfect for retrofits or buildings with weight limits.
Eco-Superlite
Extensive, thin, lightweight built-up green roof system
Superlite build-up with a deeper media profile for a broader plant palette.
- Depth
- 3" (75 mm)
- Saturated
- 16 lb/ft²
- Retention
- 52%
Bio-System
Extensive built-up green roof system
The full built-up extensive assembly, specified where the deck can carry it.
- Depth
- 4" (100 mm)
- Saturated
- 26 lb/ft²
- Retention
- 60%
Modular
Instant impact and lasting performance. Pre-grown and ready to install, each unit locks in place for quick, flexible design. Built-in drainage, filtration, and water retention.
Bio-Module
Pre-vegetated, hybrid, modular green roof ‘in a box’
Pre-grown modules that land planted and lift out again for deck access.
- Depth
- 4.5" (115 mm)
- Saturated
- 30 lb/ft²
- Retention
- 55%
Eco-Module
Pre-vegetated, hybrid, modular green roof ‘in a box’
Deeper module for biodiverse planting where the structure allows it.
- Depth
- 6" (150 mm)
- Saturated
- 42 lb/ft²
- Retention
- 65%
Intensive
Deeper, stronger, and more versatile. Their added depth supports a wider range of plants and boosts stormwater retention, rewarding hands-on care with design flexibility.
Eco-System
High performance, built-up green roof system
The intensive assembly: lawn, shrubs and trees on an occupied roof plane.
- Depth
- 8–24" (200–600 mm)
- Saturated
- 80–190 lb/ft²
- Retention
- 80%
Comparison
| Specification | Bio-Superlite | Eco-Superlite | Bio-System | Bio-Module | Eco-Module | Eco-System |
|---|---|---|---|---|---|---|
| Family | Extensive | Extensive | Extensive | Modular | Modular | Intensive |
| Depth | 2" (50 mm) | 3" (75 mm) | 4" (100 mm) | 4.5" (115 mm) | 6" (150 mm) | 8–24" (200–600 mm) |
| Saturated load | 11 lb/ft² | 16 lb/ft² | 26 lb/ft² | 30 lb/ft² | 42 lb/ft² | 80–190 lb/ft² |
| Annual retention | 45% | 52% | 60% | 55% | 65% | 80% |
| Max slope | to 2:12 | to 2:12 | to 2:12 | to 3:12 | to 3:12 | to 1:12 |
| Fire | ASTM E108 Class A | ASTM E108 Class A | ASTM E108 Class A | ASTM E108 Class A | ASTM E108 Class A | ASTM E108 Class A |
| Maintenance | 2 visits/year | 2 visits/year | 2 visits/year | 2 visits/year | 3 visits/year | Landscape contract, 8+ visits/year |
Specification values shown are placeholder data for this layout review. Full load tables, wind and fire reports live in the technical portal.