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 load
- 26 lb/ft²
- Annual retention
- 60%
- Max slope
- to 2:12
- Wind
- CSA A123.24 tested assembly
- Fire
- ASTM E108 Class A
- Planting
- Sedum, forbs and short native grasses
- Maintenance
- 2 visits/year
Stormwater retentionBiodiversity + habitat
Specified when
- New construction with load available
- Higher retention targets
- Deeper, more varied planting
10 documents cover this system
DOCX
CSI 3-part specification — Bio-System
DWG
Typical assembly details — all systems
DWG
Drain, penetration and expansion-joint details
PDF
Load table — saturated and dead loads, all systems
PDF
Wind resistance test report — CSA A123.24:21
PDF
Fire classification certificate — ASTM E108
Next system
Bio-Module