Optigrun Drainage Material Perl 2-10 BS is used as a drainage layer beneath extensive and intensive green roofs without water accumulation, for pressure resistant filling of Drainage Boards and as pressure resistant drainage and equalization layer beneath pathways.
Material:Expanded shale
Grading:2 - 10 mm
Frost resistant:DIN 4226
Salt content:< 0,5 g/l
Max. water capacity:11 - 19 Vol%
Water permeability:> 420 mm/min
Weight dry:560 kg/m³
Weight when saturated:670 kg/m³
Optigrun Drainage Material Perl 2-10 LA is used as a drainage layer beneath intensive green roofs without water accumulation, for pressure resistant filling of Drainage Boards and as pressure resistant drainage and equalization layer beneath paving.
Material:Lava
Grading:2 - 10 mm
Salt content:< 1.0 g/l
Max. water capacity:14 - 18 Vol%
Water permeability:180 - 450 mm/min
Weight dry:min. 1,000 kg/m³
Weight when saturated:max. 1,300 kg/m³