Drainage Material Perl 2-10 BT
Optigrün Drainage Material Perl 2/10 BT is used as an especially lightweight drainage layer beneath extensive and intensive green roofs and for pressure resistant filling of Drainage Boards on roof structures with low load reserves.
Product properties
| Material | Expanded clay |
| Grading | 2-10 mm |
| Weight when saturated | max. 680 kg/m³ |
| Weight dry | mind. 360 kg/m³ |
Area of use
- As an especially lightweight drainage layer beneath extensive and intensive green roofs and for pressure-stable filling of plastic drainage boards on ceiling constructions with low load reserves
Specific properties
- Fulfils the requirements of the FLL Green Roof Guideline