Permafoam

Permafoam is an open-celled phenollic foam that is highly absorbent and water retentive. Incorporated into Permavoid high-strength units Permafoam has the capacity to store 27 litres of water and the Permavoid structure prevents the foam from damage due to imposed backfill or traffic loads.

The Permafoam system can be used to provide water “on demand” around tree planting or similar areas that have the greatest irrigation demand.

Permavoid Permafoam units can be used to form check dams and gates within pervious pavements, providing velocity control to drainage flows within sub-bases laid over sloping surfaces. Due to the very large surface area compared to traditional check-gate flow control, Permafoam assures against the risk of the control clogging associated with traditional check-gate flow controls.

Applications

• Tree and Plant Irrigation
• Check dams and gates within Pervious pavments