Drainage and water retention membrane
GEO 20 GARDEN
Eurovent® GEO 20 GARDEN drainage membrane is made of high-density polyethylene (HDPE) and features a parallel arrangement of 20 mm high dimples with additional perforation. It is primarily designed for horizontal waterproofing applications in green roof systems. It offers very high compressive strength. The high dimples and perforation provide increased water drainage capacity, while during dry periods the dimples act as water reservoirs. The membrane also creates an additional layer of thermal and acoustic insulation. It is resistant to acids, alkalis, solvents, bacteria, fungi and plant roots.
Advantages:
- Ideal for green roofs
- High compressive strength
- Increased drainage capacity
Application and Technical Data
Eurovent® GEO 20 GARDEN drainage membrane is designed for horizontal damp-proofing in green roof systems and usable roof terraces. Installed with the dimples facing upwards, it creates a drainage layer that effectively removes excess water from the surface during heavy rainfall. The high dimples act as water retention reservoirs, storing water required to irrigate the vegetation layer. This supports plant growth and helps stabilise moisture conditions in roof gardens.
The membrane is highly resistant to compression and aggressive substances such as acids, alkalis and solvents, as well as to bacteria, fungi and root penetration.
Fotos
System products
For full drainage and water retention functionality and to ensure the protection of green roof layers, Eurovent® GEO 20 GARDEN should be used in combination with:
- Eurovent® filter geotextiles (e.g. GEO TEX), which prevent clogging of the perforations,
- Eurovent® separation and drainage mats, which support water drainage and retention,
- Eurovent® sealing and adhesive tapes, which ensure tightness at joints,
- Eurovent® installation accessories for foundation membranes,
- Eurovent® vapour control membranes and protective layers, which protect structural elements against moisture.
The use of complete Eurovent® system solutions ensures the durability and full functionality of roof gardens and green terraces.
