Permeable
Traditional concrete block paving is constructed with a fall or camber in the finished surface to allow rainwater to be directed towards gullies or channels which in turn direct the water into the urban drainage network. With ever increasing construction comes greatly increased impermeable areas such as car parking areas and roadways. The run-off water from these areas needs to be dealt with effectively.
Permeable paving offers a multi-faceted solution to this issue. Rainwater is allowed to travel through the jointing material placed in the specially designed gaps between the bricks. The rainwater then travels through a geo-textile membrane (if used) which will filter contaminants from the water before allowing it to travel through the single size aggregate sub-base and then it percolates through to the soil below. This installation, known as a total infiltration system, eliminates the need for any conventional gully drains on a suitable site.
PermeableNatural
PermeableRaven
Permeable CurraghGold
