ISO-DRAIN nature 60 P
Water storage and drainage for intensive green roofs
ISO-DRAIN nature 60 P stores water and provides drainage on intensively planted warm and inverted roofs. It holds approximately 24 l/m². Perforations on the upper surface allow controlled drainage where rainwater needs to be retained temporarily.
The perforated surface supports vapour diffusion on flat roofs with or without a fall. It also helps drain excess water and aerate the root zone.
When backfilled, ISO-DRAIN nature 60 P has a compressive strength of more than 1,000 kN/m². The brochure also lists green areas with occasional vehicle traffic, including gravel turf car parks and fire service access routes over underground car parks.
Build-up – layers from bottom to top
- Flat roof
- Roof waterproofing
- Protective mat
- ISO-DRAIN nature 60 P, unfilled
- Filter geotextile
- Growing medium / vegetation
Technical data
| Property | ISO-DRAIN nature 60 P |
|---|---|
| Material | Recycled HDPE |
| Colour | black |
| Area weight | approx. 2,000 g/m² |
| Dimple height | approx. 60 mm |
| Dimple count | approx. 72 per m² |
| Compressive strength, unfilled | approx. 120 kN/m² |
| Compressive strength, backfilled | > 1,000 kN/m² |
| Dimensions | 2.25 × 1.20 m |
| Water storage capacity | approx. 24 l/m² |
| Drainage capacity | approx. 2.21 l/(m·s) at i = 0.01 approx. 3.33 l/(m·s) at i = 0.02 approx. 7.44 l/(m·s) at i = 0.10 |
| CE certificate | EN ISO 13252 |
| Service temperature range | −40 to +80 °C |
| Physiological properties | safe for drinking water according to the brochure |
Data from the product brochure, dated May 2021.