Drainage Material 8/16 BS

Optigrün Drainage Material 8/16 BS is used as drainage layer beneath extensive and intensive green roofs, for pressure resistant filling of Drainage Boards and as lightweight drainage and equalization layer beneath paving.

Material Expanded shale
Grading 8 - 16 mm
Frost resistant DIN 4226
Salt content < 1.0 g/l
Max. water capacity 16 Vol%
Water permeability > 420 mm/min
Weight dry approx. 730 kg/m³
Weight when saturated approx. 890 kg/m³