Hydrojoint 5: a new Alkern draining paving reference with 5 mm spacer

By Schilling Communication - PR Agency Published on Tuesday, June 24, 2025 at 11:11 AM

Photo credits : ALKERN

Summary for decision-makers

The Hydrojoint 5 paving stone is revolutionizing the marketing of outdoor spaces, as evidenced by its installation at the Jura Mont-Blanc garden center in Saint-Julien-en-Genévois. With an area of 2000 m² dedicated to the display of plants, these paving stones not only provide undeniable aesthetics, but also offer functional benefits. They preserve dry surfaces during watering, minimize the risk of slipping, and facilitate movement thanks to their reduced spacers, suitable for shopping carts and trolleys. In short, they guarantee a flat and safe surface while promoting excellent absorption of heavy rain.

Hydrojoint 5 pavers, with their dimensions of 20x20x8 cm and an impressive permeability of K = 61,2 l/min/m², are designed for a variety of uses, from pedestrian walkways to parking lots. Available in a wide range of colors and formats, including eco-friendly options such as Recycled Concrete Aggregate, these pavers are as aesthetic as they are effective. Priced from €38,55 per m², excluding taxes, they are easy to install and require no maintenance, making them practical and durable.

Frequently Asked Questions for Decision Makers

What are the main advantages of Hydrojoint 5 paving stones?
Hydrojoint 5 paving stones provide an aesthetic, functional and safe surface, minimizing puddles, preventing slips, while facilitating the movement of pedestrians and vehicles.

How are Hydrojoint 5 paving stones installed?
They are laid in strips on a bed of sand or gravel, without fine elements, ensuring rapid and efficient installation.

What types of colors are available for pavers?
Hydrojoint 5 pavers are available in a variety of colors, including gray, white quartz, yellow limestone, and many more, allowing for maximum customization.

Listening to the market demanding solutions combining rainwater drainage and accessibility for people with reduced mobility/pedestrians, Alkern is expanding its range of Hydrojoint draining paving stones with the arrival of Hydrojoint 5.

Hydrojoint 5: permeable paving stones for safe and attractive outdoor developments

A marketing campaign accompanied by a video produced on a first site reference, at the Jura Mont-Blanc garden center in Saint-Julien-en-Genévois, where 2000 m2 were used for the flooring of an outdoor area dedicated to plant exhibitions. The operator also confirms a number of benefits. In addition to the cachet it brings to the plant space, Hydrojoint 5 eliminates puddles when watering plants, prevents slipping, and ensures easy rolling thanks to its reduced spacers - customer shopping carts or the team's pallet trucks.

Providing a flat, smooth and safe surface, while absorbing heavy rain, Hydrojoint 5 paving stones are used to create pedestrian walkways, footpaths and even car parks. These Hydrojoint 5 paving stones (20 x 20 x 8 cm) have 5 mm spacers and are also perfectly suited to the movement of PRM (people with reduced mobility). When filled with 1/3 mm crushed gravel, they have a permeability of K = 61,2 l/min/m2 or 10.200 l/sec per hectare (CERIB report). Hydrojoint 5 paving stones are laid in strips on a bed of sand (free of fine or clayey elements) or gravel and are available in all the colors of the Alkern range: Grey, White Quartz, Yellow Limestone, Hourtin, Basalt, Golden Stone, Granite 74 and Pink Porphyry.

Remember that these new paving stones with 5 mm spacers are part of a wide Hydrojoint range, renowned for their rapid drainage performance for rainwater in the ground. Available in spacer widths of 5, 15 and 30 mm on their side faces, they are available in multiple combinations of colors and formats that can also be mixed together. Offered in 3 versions (Classic, GBR - Recycled Concrete Granules - and Ocean - made from crushed scallop shell waste to replace natural aggregates), they are also compatible with traffic for light and heavy vehicles.

Requiring no maintenance and aesthetically pleasing, Hydrojoint 5 paving stones are sold at a recommended retail price starting from €38,55 per m2, excluding tax and installation.