Dry installation on gravel. Gravel is a highly draining substrate that makes it possible to create aesthetically striking coverings in the absence of a concrete substrate, even where it is not possible to build or lay permanent paving. Featuring a contemporary aesthetic, dry laying on gravel is a practical and versatile solution for enhancing courtyards, patios, gazebos, walkways, driveways, panoramic terraces, the perimeter areas of private swimming pools and courtyard or relaxation areas in general.
Instructions for dry installation on gravel
1. Substrate preparation
- Insert a containing element, known as a kerb tile, around the edges of the area to be paved to ensure effective retention.
- Remove a layer of soil of approximately 10 cm (firm soil) to 20 cm (loose soil).
- Even out the bottom of the dug-out area with a rake, a rule and a spirit level.
- Compact the ground for a more compact paving.
- Lay a sheet of non-woven fabric (TNT) on the bottom to prevent plant growth.
- Add a layer of about 10 cm of gravel with mixed particle size (16-35 mm) for better rainwater drainage.
- Compact the substrate firmly. It should have a slope of at least 2% to ensure good drainage.
2. Laying surface
- Create a bed of gravel with a particle size of 4-8 mm, at least 10 cm high, and level it perfectly. It is important to ensure the correct flatness of the laying surface during all work stages.
3. Slab installation
- Dry installation allows the slabs to be walked on immediately during placement.
- The alignment of the joints should be checked every 5 m of progress.
- To ensure its flatness, the paving must be compacted with a tamper and a rubber mallet (white).
4. Creation of joints
- It is advisable to install the ceramic slabs with at least 4 mm joints, using suitable spacers. Joints may be left empty or filled with fine sand, which may also be stabilised with cement.