Floor series

Terradec

Water-permeable gravel paving for outdoors

Terradec is a seamless, water-permeable gravel surface for terraces, paths and driveways. Rainwater drains through the surface into the sub-base, leaving no puddles, no loose stones and no weeds in joints.

Paving that lets water through

Traditional paving drains rainwater to the sewer. Terradec does the opposite: water passes through the surface and infiltrates and buffers in the sub-base. No puddles, no falls towards a drain, and no peak load on the sewer during a downpour. Where local authorities require rainwater to be handled on site, that is often exactly what is asked for.

The system was developed in collaboration with Ghent University, in response to the demand for a modern water-permeable surface with a large buffer capacity.

Two thicknesses, two load classes

Terradec 2cm for terraces, garden paths and walking routes. Load class pedestrians only.
Terradec 4cm for driveways and parking spaces. The extra thickness provides the load distribution needed under passenger cars and light vans.

What you do not get

No loose stones in the lawn, no weeds in the joints because there are no joints, no sunken pavers around a drain or column, and no puddles after rain. The binder is UV-stable and does not yellow, unlike an epoxy-bound gravel floor.

The sub-base determines the result

Terradec is laid on a flat, compacted and water-permeable foundation with stable edge restraint, with a flatness of 5 mm under a 2 metre straightedge. That sub-base is not a detail: it determines whether the water can drain away and whether the surface stays flat.