Tough, hard wearing, permeable blocks for use within the construction of sustainable drainage systems (SuDS). The blocks incorporate a 5 mm joint spacer, allowing ingress of surface water through to the storage system below. Can be used in conjunction with Charcon Permavoid or Bardon granular sub-base.
- Manufactured from high quality aggregates and binders using semi-dry pressing method.
- Strength and slip resistance to BS EN 1338.