Tile Leveling System (SVP) for Lippage-Free Installation
You can lay tiles without a leveling system. But at the joint, after the adhesive sets, one tile sits 0.5-1mm higher than its neighbour - and it shows. Under raking light, impossible to hide.
Tile leveling clips (SVP) fix this during laying, while the adhesive is still wet. The clip passes through the joint between two tiles and a wedge tightens both tiles to the same plane until the adhesive cures. After setting, the cap breaks off, the clip tail stays buried in the joint.
When SVP is worth it:
- Large format tiles (60x60, 60x120, 80x80cm) with more production bow
- Thin tiles that shift in the adhesive
- Installation on floors with vibration
- Long laying sessions where adhesive begins to grab before final level check
Available clip thicknesses: 1mm, 1.5mm, 2mm - matching the desired joint width. Most common: 1.5mm for standard interior floor tile.
SVP doesn't fix a bad screed. The system levels tiles relative to each other - if the substrate dips 5mm across a square metre, the tiles follow that dip even with clips. Prepare the substrate first.
SVP is mainly recommended for large format (40x40cm and above) and thin tiles prone to deformation. For mosaic and tiles below 20x20cm it's usually not needed. Check the tile manufacturer's recommendations for your specific format.
1mm clips for narrow joints and thin tiles. 1.5mm is the standard for most interior floor and wall tile work. 2mm for thicker slabs or where a wider joint is required. The clip thickness sets the minimum joint width.
No. SVP levels tiles relative to each other, not to an absolute horizontal plane. If the screed varies by 3-5mm per square metre, the tiles follow those variations even with clips. Level the substrate first, then lay with SVP.
A firm kick or hammer blow parallel to the joint - the clip breaks at its snap line, the bottom section stays buried. Don't pull upward - you'll chip the tile. The tail left in the joint is covered when you grout.
At 60x60 format, 10 m2 is about 28 tiles. Using 8-10 clips per tile gives roughly 280-300 clips. Buy 10-15% extra - clips break during work and running short mid-job causes delays.
