Optigrün Aeration Substrate U-heavy is used as a drainable filler substrate beneath Optigrün Intensive Substrate I on intensive green roofs with high load capacity; high build-up.
Characteristics
Total pore volume
> 55 - 60 Vol%
Max. water capacity
≥ 25 Vol%
Salt content
≥ 2.5 g/l
Organic substances
< 40 g/l
pH value
5.5 - 8.5
Weight when saturated*
1,300-1,800 kg/m³
* Please contact Optigrün for precise details on weight in relation to the site location.
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