How do HYDROPAVERS™ Permeable Paving tiles work?
Available in attractive colours, HYDROPAVERS™ pervious pavers behave like a sponge, retaining water and eventually letting water flow through without inhibition. Run-off is eliminated or reduced in two quite distinct ways.
- First and most importantly the permeable paver ABSORBS and retains the rainwater. If 5mm of rain falls in an hour, all the rainwater will be retained inside a 55mm thick Hydropaver. (Auckland rainfall averages about 3.5mm per day). This rainwater can then evaporate back into the air; no water passes through the pervious pavers or runs off into drains.
- Secondly, if the brick is saturated the rainwater will flow through the paver at a rate of 38mm per minute.
Typically the pavers are laid onto an aggregate bedding; but the installation design depends on the geotechnical features of the ground to be covered.
NOTE: Because of the way HYDROPAVERS™ behaves, compaction of the ground (by vehicle traffic for example) is much less of an issue. Councils tend to classify any ground that carries vehicles, even natural surfaces, as impermeable.
HYDROPAVERS™ is a ceramic product compressed at 1600 tonnes and baked at 1200°C. This means that your paved surface will remain pervious for its lifetime. The high compressive strength and durability mean the permeable pavers have a very long life.
For Councils to accept that the surface is permeable (ie. not impermeable) the installation has to be able to deal with a one-in-ten year rain event of 10mm. HYDROPAVERS™ permeable pavers can absorb more than that. Some concrete paving products call themselves permeable but they rely entirely on the spaces left between the pavers – which can clog up of course and absorption by the base aggregates.
HYDROPAVERS™ pavers are available in dimensions of 300 x 300 x 55 and 200 x 100 x 55. Thicknesses of 30mm or 40mm can be supplied on special request. Black, Off-White and Grey pavers are also available in a larger 600 x 300 x 55 format.
HYDROPAVERS™ will not clog, is very strong, and is easy to lay. Call us today to discover how these permeable pavers can turn your paving project into a good looking, long lasting, quick draining success.