Optigrün Aeration Substrate U-light

Optigrün Aeration Substrate U-light is used as a drainable filler substrate beneath Optigrün Intensive Substrate I on intensive green roofs with low load capacity; higher build-up.


Total pore volume> 55 - 60 Vol%
Max. water capacity≥ 25 Vol%
Salt content≥ 2.5 g/l
Organic substances< 40 g/l
pH value5.5 - 8.5
Weight when saturated*1,000-1,250 kg/m³

* Please contact Optigrün for precise details on weight in relation to the site location.